Journal articles: 'Pervious pavements'

1

Gomez-Ullate, E., J. R. Bayon, S. Coupe, and D. Castro-Fresno. "Performance of pervious pavement parking bays storing rainwater in the north of Spain." Water Science and Technology 62, no. 3 (August 1, 2010): 615–21. http://dx.doi.org/10.2166/wst.2010.308.

Full text

Abstract:

Pervious pavements are drainage techniques that improve urban water management in a sustainable manner. An experimental pervious pavement parking area has been constructed in the north of Spain (Santander), with the aim of harvesting good quality rainwater. Forty-five pervious pavement structures have been designed and constructed to measure stored water quantity and quality simultaneously. Ten of these structures are specifically constructed with different geotextile layers for improving water storage within the pavements. Following the confirmation in previous laboratory experiments that the geotextile influenced on water storage, two different geosynthetics (Inbitex and a One Way evaporation control membrane) and control pervious pavements with no geotextile layers were tested in the field. Weather conditions were monitored in order to find correlations with the water storage within the pervious pavement models tested. During one year of monitoring the three different pervious pavement types tested remained at their maximum storage capacity. The heavy rain events which occurred during the experimental period caused evaporation rates within the pervious pavements to be not significant, but allowed the researchers to observe certain trends in the water storage. Temperature was the most closely correlated weather factor with the level of the water stored within the pervious pavements tested.

APA, Harvard, Vancouver, ISO, and other styles

2

Sprouse, Charles E., Conrad Hoover, Olivia Obritsch, and Hannah Thomazin. "Advancing Pervious Pavements through Nomenclature, Standards, and Holistic Green Design." Sustainability 12, no. 18 (September 9, 2020): 7422. http://dx.doi.org/10.3390/su12187422.

Full text

Abstract:

Researchers developing pervious pavements over the past few decades have commendably demonstrated long-term run-off reduction using a diverse collection of materials. Today, pervious pavements are widely recognized as a low impact development technique and a type of green infrastructure, and installations are proliferating throughout the United States and worldwide. The entire field of pervious pavements though, is being profoundly stunted by three persistent problems: conflicting nomenclature, flawed testing standards, and the absence of a holistic green design framework. This study examines each problem and proposes novel solutions. On nomenclature, a multi-channeled study of the terms “pervious”, “permeable”, and “porous” considers each word’s etymology and usage in the academic literature, in ASTM International standards, and by (U.S.-based) governmental entities. Support is found for using pervious pavements (i.e., “through” the “road”) as the over-arching category of all water passable pavements, branching down into porous pavements (i.e., “full of pores”, including porous asphalt and porous concrete) and permeable pavements (i.e., “containing passages”, often between paver units). ASTM International standards are shown to insufficiently account for the impact of paver unit size on infiltration rate, warranting the development of a more reliable testing method featuring variable infiltration ring size, shape, and placement. Finally, a ten-part holistic green design framework is elucidated for use in assessing candidate pavements and engineering new pavements, contextualizing the latest pervious pavement research and illuminating a brighter path forward.

APA, Harvard, Vancouver, ISO, and other styles

3

Rahimi, Hamidreza, Xiaonan Tang, Sadra Rahimi, and Prateek Kumar Singh. "Using Travertine in Pervious Pavement to Control Urban-Flooding and Storm Water Quality." International Journal of Applied Science 1, no. 1 (June 29, 2018): p20. http://dx.doi.org/10.30560/ijas.v1n1p20.

Full text

Abstract:

The conventional methods for controlling urban-flooding are to build raceway networks to transfer flood water away as quickly as possible. However, due to fast increase of urban population, the conventional methods are facing some problems especially when rainfall intensity is higher than design expectation. The main reason for such problems are due to impervious surfaces. Therefore, pervious pavements, such as porous asphalts or pervious concrete blocks, are now recommended to use by environmental engineers. Compared with conventional pavement surfaces, pervious pavements have lots of benefits although they are relatively expensive to build. This paper introduces the mineral rock of Travertine as the materials for pervious pavements, and describes an experimental model to determine the inflation patterns and storm water quality improvement in flood precipitating simulation. The results indicated that Travertine pavement can not only decrease more than 90%of Copper, Lead and Zinc but also play an important role in urban-flood management with a 50% decrease of storm water.

APA, Harvard, Vancouver, ISO, and other styles

4

Gomez-Ullate, E., A. V. Novo, J. R. Bayon, Jorge R. Hernandez, and Daniel Castro-Fresno. "Design and construction of an experimental pervious paved parking area to harvest reusable rainwater." Water Science and Technology 64, no. 9 (November 1, 2011): 1942–50. http://dx.doi.org/10.2166/wst.2011.175.

Full text

Abstract:

Pervious pavements are sustainable urban drainage systems already known as rainwater infiltration techniques which reduce runoff formation and diffuse pollution in cities. The present research is focused on the design and construction of an experimental parking area, composed of 45 pervious pavement parking bays. Every pervious pavement was experimentally designed to store rainwater and measure the levels of the stored water and its quality over time. Six different pervious surfaces are combined with four different geotextiles in order to test which materials respond better to the good quality of rainwater storage over time and under the specific weather conditions of the north of Spain. The aim of this research was to obtain a good performance of pervious pavements that offered simultaneously a positive urban service and helped to harvest rainwater with a good quality to be used for non potable demands.

APA, Harvard, Vancouver, ISO, and other styles

5

Jayasuriya, L. N. N., N. Kadurupokune, M. Othman, and K. Jesse. "Contributing to the sustainable use of stormwater: the role of pervious pavements." Water Science and Technology 56, no. 12 (December 1, 2007): 69–75. http://dx.doi.org/10.2166/wst.2007.753.

Full text

Abstract:

The city of Melbourne, Australia is experiencing a water crisis with potable water storage reservoirs at an all time low. With increasing urbanisation there is an ever increasing need to research and explore sustainable water management initiatives. There is potential to minimise the negative impacts of stormwater runoff and augment dwindling supplies of potable water through adoption of pervious paving technology. The traditional approach to stormwater management has focused on constructing drainage networks to carry stormwater away from developed areas as quickly as possible to avoid the risk of flooding. The main aim of this research project was to establish relationships between rainfall intensity, infiltration rate and pervious pavement runoff and to examine the improvement to stormwater quality after infiltrating through pervious pavements. This paper describes the laboratory experiment set-up to determine the infiltration patterns and stormwater quality improvement for simulated storms precipitating on pervious pavements. Next, the scaling-up of the experimental rig to a field-based trial is explained. Preliminary results from this work are presented to demonstrate the potential benefits of pervious pavements in the Australian landscape.

APA, Harvard, Vancouver, ISO, and other styles

6

Starke, P., P. Göbel, and W. G. Coldewey. "Effects on evaporation rates from different water-permeable pavement designs." Water Science and Technology 63, no. 11 (June 1, 2011): 2619–27. http://dx.doi.org/10.2166/wst.2011.168.

Full text

Abstract:

The urban water balance can be attenuated to the natural by water-permeable pavements (WPPs). Furthermore, WPPs have a 16% higher evaporation rate than impermeable pavements, which can lead to a better urban climate. Evaporation rates from pavements are influenced by the pavement surface and by the deeper layers. By a compared evaporation measurement between different WPP designs, the grain size distribution of the sub-base shows no influence on the evaporation rates in a significant way. On the contrary, a sub-base made of a twin-layer decreases the evaporation by 16% compared to a homogeneous sub-base. By a change in the colour of the paving stone, 19% higher evaporation rates could be achieved. A further comparison shows that the transpiration-effect of the grass in grass pavers increases the evaporation rates more than threefold to pervious concrete pavements. These high evapotranspiration rates can not be achieved with a pervious concrete paving stone. In spite of this, the broad field of application of the pervious concrete paving stone increases the importance in regard to the urban climate.

APA, Harvard, Vancouver, ISO, and other styles

7

Zhang, Rui, Guosheng Jiang, and Jia Liang. "The Albedo of Pervious Cement Concrete Linearly Decreases with Porosity." Advances in Materials Science and Engineering 2015 (2015): 1–5. http://dx.doi.org/10.1155/2015/746592.

Full text

Abstract:

Pervious pavements have been advocated as a potential countermeasure to the urban heat island effect. To understand if pervious pavements stay cooler than conventional pavements, the albedo of the pervious concrete must be understood. This study measured the albedo of pervious concrete with different porosity. Four Portland cement concrete mixes were casted, using designed amounts of sand to vary the porosity of the pervious concrete samples. The samples were sliced and the spectral reflectance and albedo of the sliced samples were measured and analyzed. It is found that the albedo of pervious concrete decreases linearly with the increase of the porosity. The albedo of a pervious Portland concrete varies from 0.25 to 0.35, which is 0.05~0.15 lower than the albedo of conventional cement concrete. Due to this lower albedo, it should be cautious to develop pervious concrete to battle with urban heat island unless the evaporation of pervious concrete is promoted to compensate the additional solar absorption caused by the low albedo.

APA, Harvard, Vancouver, ISO, and other styles

8

Ryu, Byung-Hyun, Sojeong Lee, and Ilhan Chang. "Pervious Pavement Blocks Made from Recycled Polyethylene Terephthalate (PET): Fabrication and Engineering Properties." Sustainability 12, no. 16 (August 7, 2020): 6356. http://dx.doi.org/10.3390/su12166356.

Full text

Abstract:

The importance of permeable and pervious pavements in reducing urban stormwater runoff and improving water quality is growing. Here, a new pervious pavement block material based on recycled polyethylene terephthalate (PET) waste is introduced, which could contribute to reducing global plastic waste via PET’s utilization for construction material fabrication. The engineering properties and durability of recycled PET aggregate (RPA) pervious blocks are verified through flexural tests, in situ permeability tests, clogging tests, and freeze-thaw durability tests, and their cost-effectiveness is assessed by comparison with existing permeable/pervious pavers. Their engineering and economic characteristics confirm that the RPA pervious blocks are suitable for use in urban paving.

APA, Harvard, Vancouver, ISO, and other styles

9

Kadurupokune, N., and N. Jayasuriya. "Pollutant load removal efficiency of pervious pavements: is clogging an issue?" Water Science and Technology 60, no. 7 (October 1, 2009): 1787–94. http://dx.doi.org/10.2166/wst.2009.571.

Full text

Abstract:

Pervious pavements in car parks and driveways reduce the peak runoff rate and the quantity of runoff discharged into urban drains as well as improve the stormwater quality by trapping the sediments in the infiltrated water. The paper focuses on presenting results from the laboratory tests carried out to evaluate water quality improvements and effects of long-term decrease in infiltration rates with time due to sediments trapping (clogging) within the pavement pores. Clogging was not found to be a major factor affecting pervious pavement performance after simulating 17 years of stormwater quality samples.

APA, Harvard, Vancouver, ISO, and other styles

10

A.S, Navin, Hari Kumar.V, Dheepan K.R, and Kamal S. "Pervious Pavements: A Miniature Examination." International Journal of Engineering Trends and Technology 21, no. 3 (March 25, 2015): 138–43. http://dx.doi.org/10.14445/22315381/ijett-v21p224.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Hu, Yinhong, Weiwei Yu, Bowen Cui, Yuanyuan Chen, Hua Zheng, and Xiaoke Wang. "Pavement Overrides the Effects of Tree Species on Soil Bacterial Communities." International Journal of Environmental Research and Public Health 18, no. 4 (February 23, 2021): 2168. http://dx.doi.org/10.3390/ijerph18042168.

Full text

Abstract:

Human disturbance and vegetation are known to affect soil microorganisms. However, the interacting effects of pavement and plant species on soil bacterial communities have received far less attention. In this study, we collected soil samples from pine (Pinus tabuliformis Carr.), ash (Fraxinus chinensis), and maple (Acer truncatum Bunge) stands that grew in impervious, pervious, and no pavement blocks to investigate the way pavement, tree species, and their interaction influence soil bacterial communities by modifying soil physicochemical properties. Soil bacterial community composition and diversity were evaluated by bacterial 16S amplicon sequencing. The results demonstrated that soil bacterial community composition and diversity did differ significantly across pavements, but not with tree species. The difference in soil bacterial community composition across pavements was greater in pine stands than ash and maple stands. Soil bacterial diversity and richness indices decreased beneath impervious pavement in pine stands, and only bacterial richness indices decreased markedly in ash stands, but neither showed a significant difference across pavements in maple stands. In addition, bacterial diversity did not differ dramatically between pervious pavement and no pavement soil. Taken together, these results suggest that pavement overwhelmed the effects of tree species on soil bacterial communities, and had a greater effect on soil bacterial communities in pine stands, followed by ash and maple stands. This study highlights the importance of anthropogenic disturbance, such as pavement, which affects soil microbial communities.

APA, Harvard, Vancouver, ISO, and other styles

12

Rakh, Avinash A. "Behavior of Pervious Concrete Pile based on Vertical Loading." International Journal for Research in Applied Science and Engineering Technology 9, no. VII (July 31, 2021): 3884–91. http://dx.doi.org/10.22214/ijraset.2021.37231.

Full text

Abstract:

Permeable granular piles are used to increase the time rate of consolidation, reduce liquefaction potential, improve bearing capacity, and reduce settlement. However, the behaviour of granular piles depends on the confinement provided by surrounding soil, which limits their use in very soft clays and silts, and organic and peat soils. This research effort aims to develop a new ground-improvement method using pervious concrete piles. Pervious concrete piles provide higher stiffness and strength, which are independent of surrounding soil confinement, while offering permeability comparable to granular piles. This proposed ground-improvement method can improve the performance of different structures supported on poor soils. To achieve the goal of the research project, a series of pervious concrete sample mixing has been conducted to investigate the pervious concrete material properties. Laboratory tests are carried out on a pervious concrete pile of 100 mm diameter and variation at different lengths (500mm,400mm,300mm) surrounded by sand of different density. The tests are carried out either with an entire equivalent area loaded to estimate the stiffness of improved ground or only a column loaded to estimate the limiting axial capacity. Pervious concrete is a special concrete product made primarily of a single-sized aggregate. Pervious concrete has been used in pavements to reduce storm-water-runoff quantities and perform initial water-quality treatment by allowing water to penetrate through the surface. In the United States, pervious concrete is mainly used in pavement applications, including sidewalks, parking lots, tennis courts, pervious base layers under heavy-duty pavements, and low traffic-density areas. The vertical load responses of pervious concrete are the variation of soil stresses and displacement are discussed. Nine tests are conducted on pervious concrete pile further investigate the behaviour of the pervious concrete pile and surrounding soil under vertical load condition. Therefore, Pervious Concrete Piles is particularly suitable for reinforcing subsoil that has low strength and poor permeability.

APA, Harvard, Vancouver, ISO, and other styles

13

Bezerra, Natália Martins. "Tests of pervious concrete as learning tool Comparative Study About: Evolution of the Trait, Methods and Complementary Analysis." International Journal on Alive Engineering Education 6 (December 6, 2019): 107–28. http://dx.doi.org/10.5216/ijaeedu.v6.59576.

Full text

Abstract:

The execution of pervious concrete pavements has been used over the years as a pedagogical resource in the Civil Engineering course at UNEMAT - Universidade do Estado de Mato Grosso, campus of Tangará da Serra – MT – Brazil. With the purpose of aggregating scientific knowledge to the academics, providing advances in the technique used in the production of pervious concrete, as well to the development of the University's physical space. In this article, some of these studies will be presented in order to discuss the scientific observations made by academics in the development of practices and to evaluate the evolution in the methodologies of trait and execution. The characteristic that allow water infiltration has made porous concrete chosen to remedy problems due to the accumulation of water at several points on campus. In addition, another necessity was to promote the interconnection between classroom blocks. The works were evaluated taking into account the reports developed by the academics during the activities. In this analysis, the advancement of the techniques employed even when the students did not have the appropriate equipment. It was possible to observe modifications in the techniques of staining the concrete and the level of difficulty of the drainage process involved. The results were discussed in view of both the evolution of the technique of preparation of the pervious concrete pavement by the academics, as well as the practice as a didactic and social resource. Recently, besides the permeability, the thermal properties of porous concrete have also begun to be explored. Would the pervious concrete pavements has betters thermal performance than the conventional ones? In the state of Mato Grosso for presenting high annual average temperatures if, the pervious pavements contributes to a lower heat retention compared to the conventional one, this would show an excellent alternative for the substitution of the conventional pavements, prioritizing the thermal comfort of the academic community. Because of that, a comparative analysis was performed between the temperature values recorded in the porous pavements, in the conventional and green areas of the campus. The methodology of this research consisted in performance of temperature measurements with an infrared thermometer, the measurements was for 20 days distributed in four months, four times per day (8 a.m., 11 a.m., 5 p.m., and 7 p.m.). The rainy season in the region caused some variations in the results, since conventional concrete, when moist, takes longer to lose this moisture and absorb heat. The colors chosen in the painting also influenced results, because, in the pavements that the pervious concrete was not painted, showed lower temperatures than the conventional. The development of activities related to the analysis and production of pervious concrete contribute to the academic training of students of the Civil Engineering course on two fronts: obtaining technical knowledge and capacity for teamwork, exploring all the basic procedures of the routine of a real work.

APA, Harvard, Vancouver, ISO, and other styles

14

Hein, Michael F., Mark Dougherty, and Turner Hobbs. "Cleaning Methods for Pervious Concrete Pavements." International Journal of Construction Education and Research 9, no. 2 (April 2013): 102–16. http://dx.doi.org/10.1080/15578771.2011.649886.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Busari, Ayobami A., Adeyemi Adeboje, Abayomi E. Modupe, Olaolu G. Fadugba, Roland Loto, and Emmanuel Adeyanju. "Pervious Pavements For Storm Water Control." IOP Conference Series: Earth and Environmental Science 665, no. 1 (March 1, 2021): 012027. http://dx.doi.org/10.1088/1755-1315/665/1/012027.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Netinger Grubeša, Ivanka, Ivana Barišić, Tomislav Keser, and Martina Vračević. "Wearing characteristics assessment of pervious concrete pavements." Road Materials and Pavement Design 20, no. 3 (January 8, 2018): 727–39. http://dx.doi.org/10.1080/14680629.2017.1421568.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Gao, Run Dong, Qing Feng Xu, Xiang Min Li, and Min Shan Du. "Experimental Research on Pervious Concrete Mixed with Polypropylene Split Fiber(PPSF)." Advanced Materials Research 1065-1069 (December 2014): 1894–98. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.1894.

Full text

Abstract:

Performance tests are conducted on pervious concrete mixed with Polypropylene Split Fiber (PPSF), in which basic indexes such as compressive strength, splitting strength, flexural strength, porosity, permeability coefficient are measured. Results indicate: mixed with certain amount of PPSF in ordinary pervious concrete is feasible, and during mixing PPSF is split into uniformly distributed monofilament fiber without occurrence of agglomeration or rustiness; incorporating 3kg PPSF in 1m3 pervious concrete is proper, under which compared with the ordinary pervious concrete, both porosity and permeability coefficient are decreased, but application requirements are still met, while strength is increased obviously; the pervious concrete mixed with PPSF can be used in ordinary light traffic pavements.

APA, Harvard, Vancouver, ISO, and other styles

18

Yong, C. F., A. Deletic, T. D. Fletcher, and M. R. Grace. "Hydraulic and treatment performance of pervious pavements under variable drying and wetting regimes." Water Science and Technology 64, no. 8 (October 1, 2011): 1692–99. http://dx.doi.org/10.2166/wst.2011.150.

Full text

Abstract:

Pervious pavements are an effective stormwater treatment technology. However, their performance under variable drying and wetting conditions have yet to be tested, particularly under a continuous time scale. This paper reports on the clogging behaviour and pollutant removal efficiency of three pervious pavement types over 26 accelerated years. These pavements were monolithic porous asphalt (PA), Permapave (PP) and modular Hydrapave (HP). Over a cycle of 13 days, the period of which was equivalent to the average annual Brisbane, Australia rainfall (1,200 mm), the pavements were randomly dosed with four different flows. Drying events of 3 h duration were simulated during each flow. Inflow and outflow samples were collected and analysed for Total Suspended Solids (TSS), Total Phosphorus (TP) and Total Nitrogen (TN). To evaluate the rate of clogging, a 1 in 5 year Brisbane storm event was simulated in the 6th, 8th, 12th, 16th, 20th and 24th week. Under normal dosing conditions, none of the pavements showed signs of clogging even after 15 years. However, under storm conditions, both PA and HP started to clog after 12 years, while PP showed no signs of clogging after 26 years. The drying and various flow events showed no effects in TSS removal, with all systems achieving a removal of approximately 100%. The average TP removal was 20% for all flows except for low flow, which had a significant amount of leaching over time. Leaching from TN was also observed during all flows except high flow. The TSS, TP and TN results observed during storm events were similar to that of high flow.

APA, Harvard, Vancouver, ISO, and other styles

19

M. Ganesh, K., A. S. S. Vara Prasad, P. S. Viswa Harish, and A. Subrahmanyam Raju. "Study of Mechanical Properties of Pervious Concrete as a Pavement Material by Partial Replacement of Ggbs in Cement with Addition of Cellulose Fibers." International Journal of Engineering & Technology 7, no. 3.31 (August 24, 2018): 219. http://dx.doi.org/10.14419/ijet.v7i3.31.18300.

Full text

Abstract:

Among all the transportation systems roadways is most commonly used transportation system. But in present scenario roads faces a lot of problems like potholes, cracks and many other distresses. Not even these but water is also the main enemy to the pavement which causes deformations and changes the texture of subgrade soil resulting in large variation in performance.The total Impervious Surface Change (ISC) in India for the decade 2000 to 2010 is 2274.62 km2. This is one of the most considerable problems due to rapid urbanization where there is a tremendous increase in construction of black topped and different types of impervious pavements. This has an adverse effect on the environment as the storm water becomes stagnant over the surface of the pavement due to inadequate drainage conditions.The necessity for reducing stagnation and the surface runoff has given the inception of pervious pavement surface. Pervious concrete pavement is a special type of its kind with high perviousness with no or minimal fines which allow water to percolate through it and thus the water which is accumulated over the surface can be collected and used for various purposes.The present work studied the mechanical properties and also the permeability of pervious concrete of mix 3:1 aggregate cement ratio. The control mix is altered by partially replacing 30% of cement with Ground Granulated Blast furnace Slag (GGBS), included Cellulose fibers of 5% of weight of the cementitious material and combination of both in one mix and compared the results obtained.The properties such as compressive strength, split tensile strength, flexural strength and permeability are assessed by performing tests. It was observed that there is an increase in Compressive Strength, Split Tensile Strength, Flexure Strength and decrease in the permeability in the altered pervious concrete mixes when compared to the Pervious concrete with no additives.

APA, Harvard, Vancouver, ISO, and other styles

20

Marks, Andrew. "Pervious Concrete Pavement—How Important Is Compressive Strength?" Journal of Green Building 3, no. 3 (August 1, 2008): 36–41. http://dx.doi.org/10.3992/jgb.3.3.36.

Full text

Abstract:

As asphalt becomes more expensive and in short supply, and as the need to manage stormwater runoff increases, designers must revisit old assumptions and take a fresh look at how pavements need to work in a sustainable environment, and how to design and specify for them. Pervious pavements are a recent addition to the list of viable paving options, but as yet, there have been few ways to design them and to effectively predict their performance. This article offers some help to accomplish those tasks.

APA, Harvard, Vancouver, ISO, and other styles

21

Ho, Hsin-Lung, Ran Huang, Lih-Chuan Hwang, Wei-Ting Lin, and Hui-Mi Hsu. "Waste-Based Pervious Concrete for Climate-Resilient Pavements." Materials 11, no. 6 (May 27, 2018): 900. http://dx.doi.org/10.3390/ma11060900.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Delatte, Norbert, Aleksandar Mrkajic, and Daniel I. Miller. "Field and Laboratory Evaluation of Pervious Concrete Pavements." Transportation Research Record: Journal of the Transportation Research Board 2113, no. 1 (January 2009): 132–39. http://dx.doi.org/10.3141/2113-16.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

AlShareedah, Othman, and Somayeh Nassiri. "Methodology for Mechanistic Design of Pervious Concrete Pavements." Journal of Transportation Engineering, Part B: Pavements 145, no. 2 (June 2019): 04019012. http://dx.doi.org/10.1061/jpeodx.0000117.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Rangelov, Milena, Somayeh Nassiri, Zhao Chen, Mark Russell, and Jeffery Uhlmeyer. "Quality evaluation tests for pervious concrete pavements’ placement." International Journal of Pavement Research and Technology 10, no. 3 (May 2017): 245–53. http://dx.doi.org/10.1016/j.ijprt.2017.01.007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Sukhija, Mayank, Anush K. Chandrappa, and Nikhil Saboo. "Novel Pervious Concrete Paver Blocks for Sustainable Pavements." Journal of Testing and Evaluation 50, no. 1 (July 19, 2021): 20210011. http://dx.doi.org/10.1520/jte20210011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Yu, Weiwei, Yinhong Hu, Bowen Cui, Yuanyuan Chen, and Xiaoke Wang. "The Effects of Pavement Types on Soil Bacterial Communities across Different Depths." International Journal of Environmental Research and Public Health 16, no. 10 (May 21, 2019): 1805. http://dx.doi.org/10.3390/ijerph16101805.

Full text

Abstract:

Pavements have remarkable effects on topsoil micro-organisms, but it remains unclear how subsoil microbial communities respond to pavements. In this study, ash trees (Fraxinus Chinensis) were planted on pervious pavement (PP), impervious pavement (IPP), and non-pavement (NP) plots. After five years, we determined the soil bacterial community composition and diversity by high-throughput sequencing of the bacterial 16S rRNA gene. The results of our field experiment reveal that the presence of pavement changed soil bacterial community composition and decreased the Shannon index, but had no impact on the Chao 1 at the 0–20 cm layer. However, we achieved the opposite result at a depth of 20–80 cm. Furthermore, there was a significant difference in bacterial community composition using the Shannon index and the Chao 1 at the 80–100 cm layer. Soil total carbon (TC), total nitrogen (TN), available phosphorus (AP), NO3−-N, and available potassium (AK) were the main factors that influenced soil bacterial composition and diversity across different pavements. Soil bacterial composition and diversity had no notable difference between PP and IPPs at different soil layers. Our results strongly indicate that pavements have a greater impact on topsoil bacterial communities than do subsoils, and PPs did not provide a better habitat for micro-organisms when compared to IPPs in the short term.

APA, Harvard, Vancouver, ISO, and other styles

27

Lin, Jen-Yang, Ti-Chi Yuan, and Chi-Feng Chen. "Water Retention Performance at Low-Impact Development (LID) Field Sites in Taipei, Taiwan." Sustainability 13, no. 2 (January 14, 2021): 759. http://dx.doi.org/10.3390/su13020759.

Full text

Abstract:

Low-impact development (LID) aims to retain stormwater at source sites rather than achieve water drainage. The infiltration and storage of rainwater on site is the most commonly applied LID design concept, turning impervious pavements into pervious pavements. In this study, three field sites in Taipei city, Taiwan, were monitored. Two of the sites were located on campuses, and one site was a roadside location. They were constructed at different times and had distinct purposes, but the common design aspect was the infiltration function of the ground surface. We monitored the water retention performance at the above three sites and applied a verified stormwater management model (SWMM) to characterize the performance at these case sites. The observed data show that if the accumulative rainfall was lower than 20 mm, the water retention rate at each of the three case sites reached almost 50%; at 60 mm rainfall, the rate was 40%. With increased rainfall amount, the water retention rate decreased because the storage capacity was limited. Because water retention is typically controlled by the infiltration capacity, the rainfall intensity dominated the performance. At the three field sites, the water retention rate was 40% on average at a rainfall intensity below 20 mm/h. Above this rainfall intensity, the infiltration performance of the pervious pavement decreased. The verified model was applied to assess the performance at the three sites under the Taipei city drainage system design standard, i.e., the five-year recurrent period storm level, at 78.8 mm/h. The results demonstrate that the water retention rates were 9.1%, 14.2%, and 61.0% at the three sites, indicating that the pervious pavement could reduce the loading of the current stormwater drainage system. Dispersed sites should be considered in urban stormwater management to mitigate flooding risk in urban areas.

APA, Harvard, Vancouver, ISO, and other styles

28

Moretti, Laura, Paola Di Mascio, and Ciro Fusco. "Porous Concrete for Pedestrian Pavements." Water 11, no. 10 (October 10, 2019): 2105. http://dx.doi.org/10.3390/w11102105.

Full text

Abstract:

Changes in weather patterns directly impact urban transport infrastructures. The increase in temperature and the ongoing precipitation changes should be handled and managed more frequently. In urban areas, most of the soil is impermeable and water hardly infiltrates into the subsoil. Permeable pavement is a technology that helps mitigate the effects of urban heat islands and surface impermeabilization. Porous concrete for pedestrian pavements ensures good structural, functional, and environmental performances. A pervious concrete mix differs from a conventional one in terms of the gradation of aggregates, namely, a lack of fine aggregates. The material porosity (on average 20%) causes compressive and flexural strengths lower than those of traditional concrete. The material is suitable for low-load pavements where the passage of motorized vehicles is forbidden or occasional. The pavement can be laid either monolithically or modularly, using two operating systems: returning water to underground aquifers and reducing runoff. The latter is the most frequently adopted in urban areas, where pedestrian and interdicted to motorized vehicle areas form a continuous and distributed network. In a common urban quarter, where 80% of the surface is impermeable, porous concrete pavements could cover up to 6% of the surface and provide architectural and aesthetic value for the environment.

APA, Harvard, Vancouver, ISO, and other styles

29

Qin, Yinghong, Jia Liang, Haifeng Yang, and Zhiheng Deng. "Gas permeability of pervious concrete and its implications on the application of pervious pavements." Measurement 78 (January 2016): 104–10. http://dx.doi.org/10.1016/j.measurement.2015.09.055.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Sičáková, Alena, and Marek Kováč. "Relationships between Functional Properties of Pervious Concrete." Sustainability 12, no. 16 (August 5, 2020): 6318. http://dx.doi.org/10.3390/su12166318.

Full text

Abstract:

Pervious concrete is characterized by its open-void structure, which gives it a number of specific properties and allows specific applications, including pervious pavements, residential roads, alleys, sidewalks, parking lots, patios, and so on. Permeable areas are extremely important for the creation of sustainable cities in terms of the water cycle. Due to its high void content and low cement/mortar content, pervious concrete generally may have significantly reduced strength when compared with conventional concrete. That is why a wide range of research activities is devoted to the balance between acceptable void content, strength, as well as other significant properties. Knowledge of the relationships between the individual properties is very important for understanding this specific material. In this paper, a wide range of 38 different composition variants has been tested to determine the dependencies between the essential properties of pervious concrete. The variables related to the type of aggregate, maximum grain size, the grain-size composition, the amount of binder, and the kind (composition) of binder. The dependencies reported in the article are defined with high reliability R2 ranging from 0.75 to 0.95. On the basis of the dependencies thus determined, it can be predicted that a density of min. 1740 kg/m3 must be reached to meet the requirement of min. 10 MPa for nonpavement applications, while a density of min. 1960 kg/m3 must be achieved to meet min. 20 MPa for pavement applications. The criteria of the void ratio for pavement applications can be set at 20 ± 3%, while the criteria for nonpavement applications can be set at 28 ± 6%.

APA, Harvard, Vancouver, ISO, and other styles

31

Marcaida, Aryssa, Tan Nguyen, and Jaehun Ahn. "Investigation of Particle-Related Clogging of Sustainable Concrete Pavements." Sustainability 10, no. 12 (December 19, 2018): 4845. http://dx.doi.org/10.3390/su10124845.

Full text

Abstract:

Permeable pavement has been considered an effective low impact development (LID) strategy in attempts to mitigate the environmental impacts of natural surface depletion brought about by urbanization. A concern associated with the pavement’s hydraulic performance is its sensitivity to clogging. This study aims to investigate the permeability reduction due to particle-related clogging of pervious concrete (PC), a type of sustainable pavement surface. Permeability tests revealed that the flow within PC samples shows turbulence, and a nonlinear relationship between discharge velocity and hydraulic gradient is necessary to measure the permeability coefficient. Permeability loss due to particle-clogging is influenced by the size of both PC aggregates and clogging particles. Clogging with graded sand particles causes more severe reduction compared to single-sized sands.

APA, Harvard, Vancouver, ISO, and other styles

32

Chen, Lu-Ming, Jui-Wen Chen, Ting-Hao Chen, Timothy Lecher, and Paul Davidson. "Measurement of Permeability and Comparison of Pavements." Water 11, no. 3 (March 2, 2019): 444. http://dx.doi.org/10.3390/w11030444.

Full text

Abstract:

Permeable pavements have the ability to reduce surface runoff by allowing water to infiltrate into the underlying soil. The potential of permeable pavements to assist in managing stormwater and improve water quality has gained attention as an option, other than conventional impermeable concrete for paving purposes. This study examined the permeability of three different pavement systems, including the JW Eco-technology pavement (JW), which has not previously been installed or studied in the U.S., standard impermeable concrete (IC), and pervious concrete (PC). Each pavement type was installed in triplicate. Devices based on the ASTM C1701/C1701M and ASTM C1781/C1781M constant-head methods, the National Center for Asphalt Technology (NCAT) falling-head permeameter, and two new square frames, SF-4 and SF-9, modified to fit the JW pavement, were utilized for permeability measurement on several locations of each pavement system. The results showed that the JW Eco-technology pavement had comparable permeability to the commonly used PC pavement in each method used. In addition, there was a strong correlation between the permeability measurements of NCAT method and SF-4, and between the ASTM standard and SF-9. The square frames used in this study showed their effectiveness and efficiency in performing permeability measurements. It was also found that the permeability obtained had a pronounced difference in values between the falling head and the constant head methods, with an average ratio ranging from 4.08–6.36.

APA, Harvard, Vancouver, ISO, and other styles

33

Fan, Lan-Feng, Sih-Fu Wang, Chang-Po Chen, Hwey-Lian Hsieh, Jui-Wen Chen, Ting-Hao Chen, and Wei-Liang Chao. "Microbial Community Structure and Activity under Various Pervious Pavements." Journal of Environmental Engineering 140, no. 3 (March 2014): 04013012. http://dx.doi.org/10.1061/(asce)ee.1943-7870.0000798.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Zhang, Jiong, Guodong Ma, Zhaoxia Dai, Ruiping Ming, Xinzhuang Cui, and Rui She. "Numerical study on pore clogging mechanism in pervious pavements." Journal of Hydrology 565 (October 2018): 589–98. http://dx.doi.org/10.1016/j.jhydrol.2018.08.072.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Manan, Aneel, Mushtaq Ahmad, Fawad Ahmad, Abdul Basit, and Muhammad Nasir Ayaz Khan. "Experimental Investigation of Compressive Strength and Infiltration Rate of Pervious Concrete by Fully Reduction of Sand." Civil Engineering Journal 4, no. 4 (May 3, 2018): 724. http://dx.doi.org/10.28991/cej-0309127.

Full text

Abstract:

The aim of the study is to investigate compressive strength of pervious concrete by reduction of fine aggregate from zero to 100%, additionally investigate infiltration rate of pervious concrete. Experimental study has conducted at Cecos Engineering University Peshawar. The pervious concrete samples were produced for 7 and 28 days. Compressive strength of pervious concrete indicated higher reduction of the sand reduces compressive strength and almost 50% compressive strength decreased by reduction of 100% sand from the design mix. On the other side, infiltration rate for 28 days shows direct relation above 40% reduction of sand and highest 273% of infiltration rate by reducing 100% sand from the design mix. The 90% reduction of sand from concrete give considerable compressive strength of 2150 psi and infiltration rate of 165.79 inch/hour, which can be recommended for pavements of parking and walking area.

APA, Harvard, Vancouver, ISO, and other styles

36

A. Madhat Khoshnaw, Ganjina J. "Experimental Study on Hardened and Transport Properties of Previous Concretes." Polytechnic Journal 10, no. 1 (June 30, 2020): 121–25. http://dx.doi.org/10.25156/ptj.v10n1y2020.pp121-125.

Full text

Abstract:

Investigation to improve the performance of the pervious concrete is required through possible modifications in its properties, as it is utilized in different applications through civil engineering projects, especially in pavements. To save time and costs, such pavements should serve and explore to the traffic and the users as soon as possible. Concretes should be cured for at least 28 days to gain sufficient strength to withstand applied loads. To shorten this period, studying the properties of plain pervious concrete in terms of the mechanical properties and the permeability was undertaken. Single sized natural coarse aggregate conducted at constant water-to-cement ratio of 0.27 with cement content of 450 kg/m3, four curing period and two curing system (moist and steam) as experimental parameters were followed in this study. The results compared the two systems of curing for plain pervious concrete samples to show the effects of high temperature regime on the mechanical and permeability properties. The elevated temperature improved the mechanical properties in earlier ages but has no effect on the permeability while the steam curing resulted in an increase in modules of elasticity.

APA, Harvard, Vancouver, ISO, and other styles

37

Batezini, Rafael, José Tadeu Balbo, Liv Haselbach, Filipe de Oliveira Curvo, Guilherme Nunes Kalleder, Beatriz Sayuri Sato, and Domênico Zema. "Experimental appraisal for characterizing laboratorial and field performance parameters of pervious concrete pavement." Ambiente Construído 21, no. 2 (April 2021): 177–94. http://dx.doi.org/10.1590/s1678-86212021000200520.

Full text

Abstract:

Abstract Loratorial tests with pervious concrete comprised porosity and hydraulic conductivity as well as mechanical parameters as compressive, indirect tensile and bending strengths besides assessing its static and dynamic elasticity moduli. Later, a pervious sidewalk area of 1.0 x 8.65 square meters was built in order to determine the variation of the infiltration rate along time; over such experimental sidewalk, impact deflection tests performed allowed to assess back calculated moduli of the pervious concrete layer, resulting 33% to 13% lower than conventional concretes. A mechanistic analysis allowed to estimate the required thickness of concrete for heavy- and light-traffic areas. Tests disclosed no significant difference among the different concrete mixes, with 25% porosity and 0,1 cm/s permeability. Initial sidewalk infiltration rate of 0.5 cm/s dropped 50% four months after construction. It was verified that pervious concrete thicknesses for trucks and buses use are far higher than conventional concrete pavements.

APA, Harvard, Vancouver, ISO, and other styles

38

Prashanth, Janardhan, Harish Narayana, and Ramji Prasad. "Pervious Concrete with LLDPE Powder as Fine Aggregate." Key Engineering Materials 801 (May 2019): 391–96. http://dx.doi.org/10.4028/www.scientific.net/kem.801.391.

Full text

Abstract:

In this paper comparative study on the compressive strength and permeability of pervious concrete with and without fine aggregate is done. Sand and LLDPE (Linear low density polythene) with varying percentages are used as fine aggregates. Sand is added in percentages of 5%, 10% and 15% of the coarse aggregate in all the mixes. LLDPE powder is added in the percentage of 5%, 10% and 15% of the coarse aggregate in all the mixes. With the addition of fine aggregate the compressive strength of the pervious concrete increases but permeability reduces. The results show that the pervious concrete with LLDPE powder there is a considerable increase in compressive strength as compared to no-fines mix and mix with sand as fine aggregate. The study recommends the use of eco-friendly pervious concrete with LLDPE powder as an alternative to the existing pavements with low volume traffic.

APA, Harvard, Vancouver, ISO, and other styles

39

Endawati, Jul, Lilian Diasti, and Enung. "Characteristics of Pervious Concrete with Environmental Friendly Based Binder." Applied Mechanics and Materials 865 (June 2017): 263–69. http://dx.doi.org/10.4028/www.scientific.net/amm.865.263.

Full text

Abstract:

In general, the use of massive flexible and rigid pavement for road construction causing green land reduction that have an impact on the reduction of the catchment area. Therefore, the use of porous concrete is an environmentally friendly alternative. Its usage is expected to absorb water into the ground. Permeable pavements have different design goals if compared to the conventional pavement, due to the ability to infiltrate the storm water through the pavement surface. The purpose of this research is to get the optimum proportion of porous concrete mixture using a friendly environment binder material. Fly ash (FA) and silica fume (SF) were used to replace a certain part of the Portland Cement Composite (PCC). The maximum FA replacement referred to the proportions of the FA percentage in the massive paving industry (25%) and the maximum SF replacement (6%) as recommended by ACI 225R-10. The highest 90-day compressive strength gained by specimens of 12% PCC replacement by FA (5.87 MPa), which is 10.2% higher compared to the porous concrete compressive strength which binder composed of 12% FA and 6% SF replacement. The permeability varies at 28 days, but at the age of 90 days, the porous concrete permeability almost evenly, so that the influence of the 6% silica fume in the mixture is not indicated. The ratio of 6% replacement of cement by silica fume with no fly ash gave the highest permeability of 1.4 cm/s, approaching the previous research conducted by Schaefer, et al (2006), while at the age of 90 days the permeability of porous concrete (1.11 cm/s) closed with the results done by Montes (2006).

APA, Harvard, Vancouver, ISO, and other styles

40

Colandini, Valérie, Michel Legret, Yves Brosseaud, and Jean-Daniel Baladès. "Metallic pollution in clogging materials of urban porous pavements." Water Science and Technology 32, no. 1 (July 1, 1995): 57–62. http://dx.doi.org/10.2166/wst.1995.0014.

Full text

Abstract:

Porous pavements infiltrated with stormwater are faced with clogging problems: runoff particles seep and clog the pervious surface layer of these structures. Clogging material samples (in the form of sludge) have been collected in cleaning operations on the pervious asphalt. This study aims at characterizing these materials, particle size distribution, heavy metal contents by particle size, and studying interactions between metals and particles. A sequential extraction procedure proposed by the experts of the Community Bureau of Reference (B.C.R.) was applied to provide information about heavy metal distribution on particles and to evaluate interaction strength, and consequently potential metal mobility when chemical variations occurred in the environment. Mainly made up of sand, the materials are polluted with lead, copper, zinc and cadmium. The concentrations appeared to be linked with road traffic intensity. The heavy metal contents by particle size showed that the finer are the particles, the higher are the heavy metal concentrations. Heavy metals were found potentially labile; metals contents in the residual fraction (mineral fraction) represented less than 20 % of the total concentration. Cadmium and zinc were apparently more labile than lead and copper.

APA, Harvard, Vancouver, ISO, and other styles

41

Golroo, Amir, and Susan L. Tighe. "Fuzzy set approach to condition assessments of novel sustainable pavements in the Canadian climate." Canadian Journal of Civil Engineering 36, no. 5 (May 2009): 754–64. http://dx.doi.org/10.1139/l09-025.

Full text

Abstract:

Since the use of pervious concrete pavement structures (PCPSs) is essentially still in the trial stage in Canada, long-term and quantitative pavement condition data are not available. The existing approaches applied to assess pervious concrete pavement structure (PCPS) conditions are ad hoc and suffer from methodological limitations. A fuzzy set technique is proposed herein as an efficient tool for dealing with qualitative and incomplete pavement condition data on distress types, severities, densities, and weighting factors. Using this method, a comprehensive fuzzy condition index was developed based on Ministry of Transportation of Ontario (MTO) methodology and using fuzzy pavement condition data. This fuzzy condition index was converted to a single value that allowed for comparisons of pavement conditions using several ranking techniques. A case study of 24 PCPS sites was utilized to demonstrate how the fuzzy representations of the condition index compared with associated single values. It is shown that this approach can effectively provide extensive condition indices for PCPSs and rank them accordingly, using only limited and imprecise pavement condition data.

APA, Harvard, Vancouver, ISO, and other styles

42

PILS, S. E., P. OLIVEIRA, F. REGOSO, V. A. PAULON, and M. F. COSTELLA. "Pervious concrete: study of dosage and polypropylene fibers addiction." Revista IBRACON de Estruturas e Materiais 12, no. 1 (February 2019): 101–21. http://dx.doi.org/10.1590/s1983-41952019000100009.

Full text

Abstract:

Abstract The use of pervious concrete to minimize the effects caused by the impermeability of the soil as a result of increasing urbanization is an alternative that still requires further studies regarding its design and implementation. From this perspective, this paper presents a study of the characteristics of pervious concrete, including its tensile strength, compressive strength, flexural strength and the permeability coefficient, through the development of various mixtures to adjust the characteristics of the local aggregates. Eight mixtures were studied based on a reference mixture, five of which were related to the pervious concrete with the addition of finer aggregates than the reference mixture without these aggregates. Subsequently, three mixtures were studied with the inclusion of polypropylene fibers in order to analyze the effects of the addition of fibers on the properties of the pervious concrete. It is concluded that the presence of fibers changed the characteristics of the concrete, increasing its strengths while achieving a good permeability in its mixtures. An improvement in the flexural strength of the pervious concrete was observed, which is the main property to be considered for its use in pavements, without harming the permeability, which raises the possibility for its application.

APA, Harvard, Vancouver, ISO, and other styles

43

Bonicelli, Alessandra, Gilberto Martínez Arguelles, and Luis Guillermo Fuentes Pumarejo. "Improving Pervious Concrete Pavements for Achieving More Sustainable Urban Roads." Procedia Engineering 161 (2016): 1568–73. http://dx.doi.org/10.1016/j.proeng.2016.08.628.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Castro-Fresno, Daniel, Valerio Andrés-Valeri, Luis Sañudo-Fontaneda, and Jorge Rodriguez-Hernandez. "Sustainable Drainage Practices in Spain, Specially Focused on Pervious Pavements." Water 5, no. 1 (January 23, 2013): 67–93. http://dx.doi.org/10.3390/w5010067.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

D, VIJAYA, and SRAVANA P. "A STUDY ON THE PROPERTIES OF PERVIOUS CONCRETE FOR PAVEMENTS." i-manager’s Journal on Civil Engineering 6, no. 3 (2016): 21. http://dx.doi.org/10.26634/jce.6.3.8092.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Putman, Bradley J., and Andrew I. Neptune. "Comparison of test specimen preparation techniques for pervious concrete pavements." Construction and Building Materials 25, no. 8 (August 2011): 3480–85. http://dx.doi.org/10.1016/j.conbuildmat.2011.03.039.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Newman, A. P., E. O. Nnadi, L. J. Duckers, and A. J. Cobley. "Further developments in self-fertilising geotextiles for use in pervious pavements." Water Science and Technology 64, no. 6 (September 1, 2011): 1333–39. http://dx.doi.org/10.2166/wst.2011.180.

Full text

Abstract:

Geotextiles incorporating inorganic nutrients (particularly phosphorous) to enhance the growth of oil degrading microoganisms when geotextiles are used in pervious pavement applications have been shown to be effective in the past. However the cost and manufacturing difficulties have been a barrier to their use. A polypropylene random mat geotextile incorporating an alternative polymer additive as a source of phosphorus has been investigated as a potential self-fertilising geotextile. Experiments are reported which investigate nutrient leach rates, biofilm formation and biodegradation activity.

APA, Harvard, Vancouver, ISO, and other styles

48

Hooton, RD, LK Crouch, MA Cates, VJ Dotson, KR Honeycutt, and DA Badoe. "Measuring the Effective Air Void Content of Portland Cement Pervious Pavements." Cement, Concrete and Aggregates 25, no. 1 (2003): 11229. http://dx.doi.org/10.1520/cca10516j.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Li, Linmin. "Comment on “Numerical study on pore clogging mechanism in pervious pavements”." Journal of Hydrology 578 (November 2019): 124049. http://dx.doi.org/10.1016/j.jhydrol.2019.124049.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

AlShareedah, Othman, Md Mostofa Haider, and Somayeh Nassiri. "Effect of Temperature Difference on the Thickness Design of Pervious Concrete Pavements." Transportation Research Record: Journal of the Transportation Research Board 2674, no. 11 (August 27, 2020): 263–77. http://dx.doi.org/10.1177/0361198120943591.

Full text

Abstract:

Pervious concrete pavement (PCP) is a porous paving material that facilitates the rapid infiltration of runoff. The significance of temperature difference (ΔT) between the top and bottom of traditional concrete pavements for stresses and structural design is well known. However, with their low thermal conductivity, the question exists whether PCPs develop large ΔTs that vary during the day and between seasons. If so, the extent of the effect of such ΔTs on stresses in the slab and the thickness design of PCP needs to be investigated. In this study, temperature data collected from three PCP sections (in two different climate regions) instrumented with thermocouples were used to analyze ΔT for multi-year periods. Frequency distribution of ΔTs showed bimodal trends with peaks ranging between –6°C and 17°C occurring during the day and night of spring and summer seasons. In winter, ΔT distribution was unimodal, with peaks ranging from 0°C to 3°C. Finite element analysis was conducted to quantify the stresses in PCP sections with different flexural strength ( MR) and modulus of subgrade reaction under combinations of critical ΔTs and axle loading. The resulted stresses were used in a PCP fatigue model to estimate fatigue life and slab thickness for PCPs. Based on the expected load repetitions in a 20-year design life, a database of recommended thicknesses for PCPs with various material properties and under four traffic categories was developed. Increasing MR from 2.4 to 3.1 MPa resulted in reducing PCP design thicknesses by 20–55 mm under the same loads. Moreover, incorporating ΔT in the thickness design of PCP resulted in a higher minimum required thicknesses by up to 100 mm compared with PCP with no ΔT under the same traffic loads.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Pervious pavements'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles