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Artykuły w czasopismach na temat "Pervious pavement"

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Gomez-Ullate, E., J. R. Bayon, S. Coupe i D. Castro-Fresno. "Performance of pervious pavement parking bays storing rainwater in the north of Spain". Water Science and Technology 62, nr 3 (1.08.2010): 615–21. http://dx.doi.org/10.2166/wst.2010.308.

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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.
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Gomez-Ullate, E., A. V. Novo, J. R. Bayon, Jorge R. Hernandez i Daniel Castro-Fresno. "Design and construction of an experimental pervious paved parking area to harvest reusable rainwater". Water Science and Technology 64, nr 9 (1.11.2011): 1942–50. http://dx.doi.org/10.2166/wst.2011.175.

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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.
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Henderson, Vimy, Susan L. Tighe i Jodi Norris. "Pervious Concrete Pavement". Transportation Research Record: Journal of the Transportation Research Board 2113, nr 1 (styczeń 2009): 13–21. http://dx.doi.org/10.3141/2113-02.

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Rahimi, Hamidreza, Xiaonan Tang, Sadra Rahimi i Prateek Kumar Singh. "Using Travertine in Pervious Pavement to Control Urban-Flooding and Storm Water Quality". International Journal of Applied Science 1, nr 1 (29.06.2018): p20. http://dx.doi.org/10.30560/ijas.v1n1p20.

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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.
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V.S., Agilan. "Experimental Study on Pervious Concrete Pavement". Journal of Advanced Research in Dynamical and Control Systems 12, SP7 (25.07.2020): 248–53. http://dx.doi.org/10.5373/jardcs/v12sp7/20202104.

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Ryu, Byung-Hyun, Sojeong Lee i Ilhan Chang. "Pervious Pavement Blocks Made from Recycled Polyethylene Terephthalate (PET): Fabrication and Engineering Properties". Sustainability 12, nr 16 (7.08.2020): 6356. http://dx.doi.org/10.3390/su12166356.

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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.
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Kadurupokune, N., i N. Jayasuriya. "Pollutant load removal efficiency of pervious pavements: is clogging an issue?" Water Science and Technology 60, nr 7 (1.10.2009): 1787–94. http://dx.doi.org/10.2166/wst.2009.571.

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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.
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Hu, Yinhong, Weiwei Yu, Bowen Cui, Yuanyuan Chen, Hua Zheng i Xiaoke Wang. "Pavement Overrides the Effects of Tree Species on Soil Bacterial Communities". International Journal of Environmental Research and Public Health 18, nr 4 (23.02.2021): 2168. http://dx.doi.org/10.3390/ijerph18042168.

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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.
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Starke, P., P. Göbel i W. G. Coldewey. "Effects on evaporation rates from different water-permeable pavement designs". Water Science and Technology 63, nr 11 (1.06.2011): 2619–27. http://dx.doi.org/10.2166/wst.2011.168.

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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.
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Jayasuriya, L. N. N., N. Kadurupokune, M. Othman i K. Jesse. "Contributing to the sustainable use of stormwater: the role of pervious pavements". Water Science and Technology 56, nr 12 (1.12.2007): 69–75. http://dx.doi.org/10.2166/wst.2007.753.

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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.
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Rozprawy doktorskie na temat "Pervious pavement"

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Kunzen, Thomas. "HYDROLOGIC MASS BALANCE OF PERVIOUS CONCRETE PAVEMENT WITH SANDY SOILS". Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3249.

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Use of pervious concrete pavement as a method of stormwater management has shown great promise in previous studies. Reduction in runoff, water quality improvements, and long-term economic benefits are but a few of its many advantages. Regulatory agencies such as the St. Johns River Water Management District require further research into the performance of pervious concrete pavement before granting credits for its use as a best management practice in controlling stormwater. As a part of a larger series of studies by UCF's Stormwater Management Academy, this thesis studies the hydrologic mass balance of pervious concrete pavement in sandy soil common in Florida. In order to conduct this study, a field experiment was constructed at the UCF Stormwater Field Lab. The experiment consisted of three 4-foot tall cylindrical polyethylene tanks with 30-inch diameters. All three tanks were placed into the side of a small embankment and fitted with outlet piping and piezometers. The test tanks were assembled by laying a 6-inch layer of gravel into the bottom of each tank, followed by a layer of Mirafi geofabric, followed by several feet of fine sand into which soil moisture probes were laid at varying depths. Two of the tanks were surfaced with 6-inch layers of portland cement pervious concrete, while the third tank was left with a bare sand surface. Mass balance was calculated by measuring moisture influx and storage in the soil mass. Data collection was divided into three phases. The first phase ran from August to November 2005. Moisture input consisted of normal outdoor rainfall that was measured by a nearby rain gauge, and storage was calculated by dividing the soil mass into zones governed by soil moisture probes. The second phase ran for two weeks in March 2006. Moisture input consisted of water manually poured onto the top of each tank in controlled volumes, and storage was calculated by using probe readings to create regression trendlines for soil moisture profiles. The third phase followed the procedure identical to the second phase and was conducted in the middle of April 2006. Data tabulation in this study faced several challenges, such as nonfunctional periods of time or complete malfunction of essential measuring equipment, flaws in the method of calculating storage in phase one of the experiment, and want of more data points to construct regression trendlines for soil moisture calculation in phases two and three of the experiment. However, the data in all phases of the experiment show that evaporation volume of the tanks with pervious concrete surfacing was nearly twice that of the tank with no concrete. Subsequent infiltration experiments showed that pervious concrete pavement is capable of retaining a portion of precipitation volume, reducing infiltration into the underlying soil and increasing total evaporation in the system.
M.S.C.E.
Department of Civil and Environmental Engineering
Engineering and Computer Science
Civil Engineering
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Uju, Ikenna. "A STUDY OF THE STRENGTH OF PERVIOUS PAVEMENT SYSTEMS". Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2423.

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This thesis presents a study on the strength properties of the different pervious pavement systems installed at the Stormwater Management Academy field laboratory at University of Central Florida (UCF), Orlando. The strength tests were performed both in the laboratory and in the field. Laboratory testing was conducted to determine the compressive strength and flexural strength of the various pavement surfaces. Evaluation of field pavement performance was performed by comparing the deflection basins using the Falling Weight Deflectometer test on pervious concrete and porous asphalt with conventional impervious concrete and asphalt pavements of similar layer profile and thickness, respectively. From literature and previous work at the academy, it is evident that pervious pavements should not be used to withstand heavy traffic loading. They are mostly used in low traffic volume areas such as parking lots, driveways, walkways and some sub-divisional roads. This research studied the compressive strength and flexural moduli. Also it investigated the relationship between the compressive strength and void ratio, unit weight and volume by carrying out laboratory testing of different pervious pavements such as pervious concrete, porous asphalt, recycled rubber tires, recycled glass and porous aggregate. Different sizes of cylinders and beams were cast in place molds for these laboratory tests. Furthermore, the in-situ resilient moduli of the twenty four pavement sections in our research driveway were back calculated with Modulus 6.0 (Liu, et al., 2001) computer program. The calculated deflection basins were compared to the results obtained from a well known computer program called KENPAVE (Huang, 2004). The design of the requisite pavement layer thickness design was performed by doing hand calculations using American Association of State Highway Transportation Officials (AASHTO) method for flexible and rigid pavements and utilizing a Texas Transportation Institute (TTI) computer software known as FPS 19W (Liu, et al., 2006). The structural number for flexible pavements were calculated and tabulated for two different reliability levels (90% and 95%). Traffic loading was estimated in the absence of actual traffic count measurement devices at the field test site. Based on the laboratory testing, the maximum compressive strength of the cored pervious concrete was about 1730 psi. Backcalculated pervious concrete and porous asphalt moduli values were within the specified range discussed in literature. The in-situ modulus of elasticity range for pervious concrete is found to be 740 Â 1350 ksi, for porous asphalt 300 Â 1100 ksi, for permeable pavers 45 Â 320 ksi, for recycled rubber tire 20 Â 230 ksi, recycled glass pavement 850 ksi and porous aggregate 150 ksi. For low volume traffic loading, the minimum layer thickness was calculated for rigid pavements and it is presented in this study. In conclusion, this research summarizes the result of laboratory and field testing performed at the University of Central Florida Stormwater Management Academy Research laboratory to determine the strength related properties of pervious pavement systems.
M.S.
Department of Civil and Environmental Engineering
Engineering and Computer Science
Civil Engineering MS
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Ballock, Craig. "CONSTRUCTION SPECIFICATIONS AND ANALYSIS OF REHABILITATION TECHNIQUES OF PERVIOUS CONCRETE PAVEMENT". Master's thesis, University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2772.

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The primary objective of this study is to evaluate the clogging potential of installed pervious concrete systems, to analyze rehabilitation techniques and develop construction specifications for the construction of portland cement pervious concrete specific to the state of Florida. Currently, a consistent statewide policy has not been established in reference to credit for storage volume within the voids in pervious concrete and the coarse aggregate base. For this reason a current and updated assessment of pervious pavement is needed to benefit from the advantages of pervious pavement use in low traffic volume areas. Initially by modeling a pervious concrete system in a field laboratory with test cells of typical Florida soil conditions and groundwater elevations and combining these data with field data from multiple sites of long service life, a Florida specific construction methodology has been developed. It is hoped that by developing a more standardized design criteria for pervious pavements in Florida a statewide acceptance of portland cement pervious pavement can be achieved and credit can be earned based on the volume of stored stormwater. This study of field sites was subsequently expanded to include locations in the southeastern United States. Pervious concrete has suffered historically poor support due to a number of factors, including concern about poor long term performance due to clogging of surface pores. Eight existing parking lots were evaluated to determine the infiltration rates of pervious concrete systems that have had relatively no maintenance. Infiltration rates were measured using an embedded single-ring infiltrometer developed specifically for testing pervious concrete in an in-situ state. The average infiltration rates of the pervious concrete that was properly constructed at the investigated sites ranged from 0.4 to 227.2 inches per hour. A total of 30 pervious concrete cores were extracted and evaluated for infiltration rates after various rehabilitation techniques, including pressure washing, vacuum sweeping and a combination of the two methods, have been performed to rehabilitate the infiltration capability of the concrete. By evaluating the effectiveness of these rehabilitation techniques, recommendations have been developed for a maintenance schedule for pervious concrete installations. In most cases it was found that the three methods of maintenance investigated in this study typically resulted in a 200% or greater increase over the original infiltration rates of the pervious concrete cores. It is therefore recommended that as a general rule of thumb one or a combination of these rejuvenation techniques should be performed when the system infiltration rates are below 1.5 inches per hour to maintain the infiltration capability of pervious concrete pavements.
M.S.
Department of Civil and Environmental Engineering
Engineering and Computer Science
Civil Engineering MS
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Zhang, Jie, i s3069216@student rmit edu au. "A laboratory scale study of infiltration from Pervious Pavements". RMIT University. Civil, Environmental and Chemical Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070125.164003.

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Increased urbanization causes pervious greenfields to be converted to impervious areas increasing stormwater runoff. Most of the urban floods occur because existing drainage systems are unable to handle peak flows during rainfall events. During a storm event, flood runoff will carry contaminants to receiving waters such as rivers and creeks. Engineers and scientists have combined their knowledge to introduce innovative thinking to manage the quality of urban runoff and harvest stormwater for productive purposes. The introduction of pervious pavements addresses all the principles in Water Sensitive Urban Design. A pervious pavement is a load bearing pavement structure that is permeable to water. The pervious layer sits on the top of a reservoir storage layer. Pervious pavements reduce the flood peak as well as improve the quality of stormwater at source before it is transported to receiving waters or reused productively. To be accepted as a viable solution, understanding of the influence of design parameters on the infiltration rate (both from the bedding and the sub-base) as well as strength of the pavement requires to be established. The design of a particular pavement will need to be customized for different properties of sub layer materials present in different sites. In addition, the designs will have to meet local government stormwater discharge standards. The design of drainage systems underneath pervious pavements will need to be based on the permeability of the whole pervious system. The objectives of the research project are to: • Understand the factors influencing infiltration capacities and percolation rates through the pervious surface as well as the whole pavement structure including the bedding and the sub-base using a laboratory experimental setup. • Obtain relationships between rainfall intensity, infiltration rate and runoff quantity based on the sub-grade material using a computational model to assist the design of pervious pavements. A laboratory scale pavement was constructed to develop relationships between the surface runoff and the infiltration volume from a pervious pavement with an Eco-Pavement surface. 2 to 5mm crushed gravel and 5 to 20mm open graded gravel were chosen as the bedding and sub-base material. Initial tests such as dry and wet density, crushing values, hydraulic conductivity, California Bearing Ratio tests for aggregate material were conducted before designing and constructing the pavement model. A rainfall simulator with evenly spaced 24 sprays was set up above the pervious pavement surface. The thesis presents design aspects of the laboratory scale pavement and the tests carried out in designing the pavement and the experimental procedure. The Green and Ampt model parameters to calculate infiltration were obtained from the laboratory test results from aggregate properties. Runoff results obtained from rainfall simulator tests were compared with the Green and Ampt infiltration model results to demonstrate that the Green and Ampt parameters could be successfully calculated from aggregate properties. The final infiltration rate and the cumulative infiltration volume of water were independent of the rainfall intensity once the surface is saturated. The model parameters were shown to be insensitive to the final infiltration capacity and to the total amount of infiltrated water. The Green and Ampt infiltration parameters are the most important parameters in designing pervious pavements using the PCSWMMPP model. The PCSWMMPP model is a Canadian model built specially for designing pervious pavements. This is independent of the type of sub-grade (sand or clay) determining whether the water is diverted to the urban drainage system (clay sub-grade) or deep percolation into the groundwater system (sand sub-grade). The percolation parameter in Darcy's law is important only if the infiltrated water recharges the groundwater. However, this parameter is also insensitive to the final discharge through the subgrade to the groundwater. The study concludes by presenting the design characteristics influencing runoff from a pervious pavement depending on the rainfall intensity, pavement structure and sub-grade material and a step-by step actions to follow in the design.
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Foster, Shiloh. "Porous Concrete: Proposal of UA Study and Best Practices". The University of Arizona, 2016. http://hdl.handle.net/10150/608602.

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Sustainable Built Environments Senior Capstone Project
Porous concrete pavements have been used in the eastern United States to effectively manage storm water when used as an alternative to impervious surfaces. This paper reviewed a wide body of available literature and research to examine their potential to reduce runoff at the University of Arizona. This study found that their unique structural properties enable them to infiltrate and detain large volumes of water in a stone sub-base below the slab, filtering out many street related contaminants without the need to install additional infrastructure. Porous concrete surfaces may support green development in the southwest where water is both a sensitive and valuable resource. However, long-term structural durability, clogging potential due to dust, and maintenance requirements have yet to be fully understood in this region. This paper then summarizes critical factors that affect the performance of porous concrete and proposes a framework for future study to be conducted by the University of Arizona in a way that would reduce runoff to major campus roads, contribute to a better understanding of sustainable storm water management in the southwest, and demonstrate leadership in environmental stewardship.
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Ravello, Bolo Mirella Rosa Linda, i Condori Andrea Stefany Baldeón. "Propuesta de concretos permeables para la captación de agua de lluvia en pavimentos de estacionamientos de hospitales en Arequipa". Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/652418.

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La presente tesis consiste en presentar una propuesta sostenible que ayude en el control y almacenamiento del agua de lluvia para evitar inundaciones y daños producidos en los estacionamientos de los hospitales en la ciudad de Arequipa. Se evaluaron dieciocho diseños de mezclas, nueve realizados con agregado grueso Huso 7 y los otros nueve con Huso 67. Para los diferentes diseños se cambió el porcentaje de agregado fino, la relación agua/cemento y la dosis de los aditivos. Por cada diseño de mezcla se elaboraron nueve probetas destinadas al ensayo de resistencia a la compresión, tres por cada edad, ensayadas a los 7, 14 y 28 días; se utilizaron 2 vigas de 6”x6”x20” para determinar el Módulo de Rotura y 2 probetas de 4”x8” para hallar la tasa de permeabilidad, para lo cual se necesitó realizar una réplica del permeabilímetro expuesto en el ACI 522. Los resultados de todos los ensayos serán presentados y comparados entre sí para determinar el grado de influencia de los mismos. Además, también se realizará un análisis costo beneficio por metro cuadrado para determinar qué tanto varía el costo del concreto permeable en comparación con el concreto convencional. Finalmente, se realizará un análisis cuantitativo entre los dieciocho diseños de mezcla y el concreto convencional. Para así determinar cuál es la mezcla óptima que cumpla con los requisitos necesarios para ser implementado en los estacionamientos de los hospitales en Arequipa y pueda competir en el mercado con el concreto convencional.
The present thesis consists of presenting a sustainable proposal that helps in the control and storage of rainwater to avoid floods and damages produced in the parking lots of hospitals in the city of Arequipa. Eighteen mix designs were evaluated, nine made with coarse aggregate Spindle 7 and the other nine with Spindle 67. For the different designs, the percentage of fine aggregate, the water / cement ratio and the dose of the additives were changed. For each mix design, nine specimens were prepared for the compression resistance test, three for each age, tested at 7, 14 and 28 days; 2 beams of 6 ”x6” x20 ”were used to determine the Modulus of Break and 2 specimens of 4” x8 ”to find the permeability rate, for which it was necessary to make a replica of the permeabilimeter exposed in the ACI 522. The results of all the tests will be presented and compared with each other to determine the degree of influence between them. In addition, a cost benefit analysis per square meter will also be performed to determine how much the cost of pervious concrete varies compared to conventional concrete. Finally, a quantitative analysis will be performed between the eighteen mix designs and conventional concrete. In order to determine which is the optimal mix that meets the necessary requirements to be implemented in hospital´s parking lots in Arequipa and can compete in the market with conventional concrete.
Tesis
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Ono, Bruno Watanabe. "Análise do desempenho estrutural e hidráulico de um pavimento permeável com revestimento de blocos de concreto unidirecionalmente articulados". Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3138/tde-22052018-150543/.

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O emprego de pavimentos permeáveis tem se tornado cada vez mais necessário como medida compensatória para amortecer as vazões de pico e atenuar os impactos gerados pelas chuvas torrenciais em áreas altamente urbanizadas. Dentre os materiais convencionalmente adotados como revestimento permeável no contexto nacional destacam-se os blocos de concreto intertravados (BCI) e o asfalto poroso. No entanto, internacionalmente, existem materiais alternativos que podem apresentar permeabilidade igual ou até mesmo superior. Sob esse prisma, convém destacar o uso dos blocos de concreto articulados (BCA), recentemente adotados nos Estados Unidos e na Coréia do Sul, cuja capacidade de infiltração vem mostrando-se bastante promissora. Diferentemente dos blocos intertravados, os BCA foram projetados para trabalhar em conjunto, já que são interconectados por meio do encaixe das articulações unidirecionais de cada peça, sobrepostas umas às outras, dispensando assim o uso de material de rejunte, o que por sua vez aumenta a permeabilidade do revestimento. Contudo, embora o desempenho hidráulico aparente ser eficaz, questiona-se se o pavimento de blocos de concreto articulados (PBCA) comporta-se de forma igualmente satisfatória em termos estruturais. Nesse sentido, visando avaliar o desempenho estrutural e hidráulico de um pavimento permeável de BCA, foi construída uma pista experimental (20 x 5 m) no Campus da USP, adotando-se dois tipos de base, uma de agregado reciclado (RCD) e outra de agregado natural (brita 1). Na análise estrutural utilizaram-se como parâmetros de avaliação as deflexões máximas obtidas via FWD (Falling Weight Deflectometer), a eficiência de transferência de carga (LTE - Load Transfer Efficiency) e por fim, os módulos de resiliência retroanalisados para cada camada. Ademais, a pesquisa ainda avaliou a influência da presença de fissuras ou trincas nos blocos no desempenho estrutural do pavimento, já que acabaram tornando-se recorrentes em ambas as seções avaliadas. Já na avaliação hidráulica, monitorou-se a taxa de infiltração in situ ao longo de quase vinte meses. Complementarmente, foram realizadas ainda avaliações laboratoriais dos materiais empregados e funcionais do pavimento. A análise estrutural indicou que o sentido articulado do BCA obteve respostas estruturais nitidamente melhores que o sentido não articulado em termos de módulo de resiliência, deflexões máximas e LTE, evidenciando que de fato as articulações conferem intertravamento ao pavimento, próximo ao propiciado pela areia de rejunte no BCI. A base de RCD por apresentar uma distribuição granulométrica mais bem distribuída do que a brita 1, também obteve melhores resultados. Já a presença de trincas ou fissuras nos blocos não acarretou comprometimento no desempenho estrutural da pista experimental, devido ao baixo grau de severidade da maioria das patologias encontradas, como atestou o levantamento funcional, cuja classificação indicou um pavimento em boas condições de serventia. No que diz respeito ao desempenho hidráulico, o pavimento apresentou um desempenho adequado em termos de capacidade de infiltração. Apesar da perda progressiva estimada em 20% ao ano, as taxas de infiltração in situ mantiveram-se acima de 10-3 m/s em todos os ensaios realizados, sendo, portanto, superior à maioria dos revestimentos permeáveis tradicionalmente utilizados como os blocos intertravados e a camada porosa de atrito, conforme descritos pela literatura.
Pervious pavements have become increasingly fundamental as a compensatory measure to attenuate peak flows and to mitigate the impacts generated by torrential storm water in highly urbanized areas. Among the usual materials applied in permeable surface layers, it is possible to highlight the interlocking concrete blocks (ICB) and the porous asphalt. However, internationally, there are alternative materials that are able to present a higher permeability. In this sense, the use of articulated concrete blocks (ACB) needs to be stressed. Recently adopted in United States of America and South Korea, ACB has presented promising infiltration rates. Unlike the ICB, the ACB was designed to work as an integrated framework due to the presence of articulated joints in one of the block directions, which allows discarding the jointing sand and as result, increases water infiltration. Nevertheless, although the pavement hydraulic performance seems to be successful, there are some doubts about the structural behavior. Thereby, aiming at evaluating the hydraulic and structural performance of an unidirectionally articulated concrete block pavement, a pavement experimental section (20 x 5 meters) was constructed at the University of São Paulo Campus. Two types of different bases were applied, namely recycled concrete aggregate (RCA) and natural aggregate. The structural assessment took into account the maximum deflection measurements, the load transfer efficiency (LTE) and the backcalculated elastic moduli of each layer. In addition, this work also evaluated the structural influence caused by the presence of damaged pavers, since it became a recurring problem. Regarding the hydraulic evaluation, the surface infiltration rate was monitored over twenty months after the pavement construction. Furthermore, functional and laboratorial analyses were carried out in order to check the structure serviceability level. The structural results indicated clearly that the articulated block side had better performance than the non-articulated block side in terms of elastic moduli, maximum deflections measurements and LTE, confirming the interlocking efficiency generated by the block shape, comparable to that one provided by the jointing sand in ICB. As the recycled aggregate was characterized by a more well graded particle size distribution than the natural aggregate, the RCA base also presented better structural responses. The presence of damaged blocks did not compromise the pavement structural performance, since the degree of severity was low, as verified by the functional evaluation, which showed a pavement in good conditions. Finally, concerning the hydraulic results, the pavement presented a high infiltration capacity. Even though an infiltration loss of about 20% per year has been detected, the infiltration rate remained greater than 10-3 m/s for all tests performed, being considerably higher than those found in pavements built with both interlocking concrete blocks and with porous asphalt, as reported in the literature.
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Kadurupokune, Wanniarachchi Kankanamge Nilmini Prasadika, i s3144302@student rmit edu au. "Sustainable management of stormwater using pervious pavements". RMIT University. Civil, Environmental and Chemical Engineering, 2008. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20081029.102009.

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Pervious pavements in car parks and driveways reduce peak discharge and the volume of runoff flowing in to urban drains and improve the water quality by trapping the sediments in the infiltrated water. This reduces the risk of pollutants such as suspended solids and particle bound chemicals such as phosphorous, nitrogen, heavy metals and oils and hydrocarbons entering receiving waters. The key objectives of the study are to establish relationships between rainfall and pervious pavement runoff and quantify improvements to infiltrated stormwater quality through the pervious pavement. The field experimental results were used to calibrate the PCSWMMPP model and to develop water flow and quality improvement transfer functions of the MUSIC model for concrete block and turf cell pavements. The research reported herein has demonstrated that pervious pavements can be introduced as a sustainable stormwater management initiative and as a key Water Sensitive Urban Design feature to deliver numerous benefits to the environment. The outcomes from the study will be useful in designing environmentally friendly car parks, pedestrian paths, light traffic drive ways, sporting grounds and public areas in the future. Land developers and local government authorities will be major beneficiaries of the study which has increased the understanding of the use of pervious pavements and explored a number of issues that previously inhibited the wider use of pervious pavements in practice.
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Morgenroth, Justin. "The Effect of Porous Concrete Paving on Underlying Soil Conditions and Growth of Platanus orientalis". Thesis, University of Canterbury. School of Forestry, 2010. http://hdl.handle.net/10092/5112.

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Urbanisation is characterised by mass migration of people to urban areas and conversion of land from rural to urban land uses. Changes in population dynamics have led to half the world’s population living in urban areas; in developed countries, urban dwellers account for three-quarters of the total population. Though populations have shifted from rural to urban areas, people continue to rely on their environment, and trees in particular, for tangible and intangible benefits alike. A great deal of factual and anecdotal knowledge supports the role of trees for ecological, social, and economic well-being. In spite of this, during urbanisation, previously vegetated land is converted to housing, roads, or utility corridors, all of which are necessary to support growing populations. This thesis investigates tree growth in these modified urban landscapes, in particular, the effects of pavements on urban trees. Pavements are truly pervasive, covering more than half of all land in highly developed urban areas. Their durability and strength are of great importance to transportation, but large-scale soil sealing is not without consequence. Pavements affect the hydrologic cycle, soil and air temperature, and nutrient cycling. Because of their effect on the surrounding environment, pavements inherently affect remnant or planted trees. They are believed to negatively affect tree growth and survival, thereby compromising the ecological, social, and economic benefits otherwise derived from the urban forest. In recent times, porous pavements have been increasingly installed in favour of impervious pavements. Porous pavements are perceived to be an environmentally-sound alternative to standard impervious pavements. This thesis begins by reviewing the literature concerning porous pavement’s effect on underlying soil and urban vegetation, thus illustrating the scarcity of empirical data describing the effect of porous pavement on tree growth. A greater understanding of porous pavement’s impact on the surrounding environment is needed, if its installation is to continue. With this aim in mind, this thesis describes an experiment in Christchurch, New Zealand, which monitored the impacts of porous and impervious pavement on underlying soil conditions, and subsequent tree growth. The experiment comprised 50 Platanus orientalis trees planted in an augmented factorial design, which consisted of controls and four treatments. Trees were split evenly amongst plots, such that ten replicates existed per treatment. The pavement treatments measured 2.3m by 2.3m, and were based on the combination of pavement type (2 levels: porous, impervious) and pavement profile design (2 levels: +/- subbase compaction and gravel base). The resulting four treatments were impervious concrete pavement (IP), impervious concrete pavement with compacted subbase and gravel base (IP+), porous concrete pavement (PP), and porous concrete pavement with compacted subbase and gravel base (PP+). From December 2007 to March 2009, data were collected to determine the effect of these treatments on soil moisture, aeration, pH, and nutrient concentration. Final tree height, stem diameter, shoot and root biomass, and root distribution were also measured at the conclusion of the experiment. Results of this experiment indicated that the effects of pavement porosity on soil moisture and aeration were dynamic, varying with season and soil depth. Increased soil moisture beneath porous pavements resulted from rapid infiltration following precipitation. This decreased the duration of plant stress resulting from drought. Relative to bare soil, paved plots had consistently greater soil moisture, likely because pavements reduced evaporation. The inclusion of a gravel base in the profile design limited capillary upflow, which resulted in lower soil moisture under pavements designed with a gravel base. Soil aeration was significantly lower beneath pavements relative to unpaved plots. This is likely related to greater soil moisture beneath pavements. Finally, soil pH increased beneath pavements, in particular beneath porous pavements. Though all growth parameters increased for trees surrounded by porous, rather than impervious pavement, this occurred only in the absence of a compacted subgrade and gravel base. Evidently, the impact of the compacted subgrade superseded the impact of pavement porosity. Furthermore, root growth was relatively shallow beneath pavements, likely due to favourable soil moisture directly beneath pavements. This research highlights (i) the dramatic effect of pavements on underlying soil conditions; (ii) that pavements do not inherently limit tree growth; (iii) that porous pavements can conditionally improve tree growth; and (iv) that soil compaction limits potential benefits resulting from porous pavements.
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Goede, William Gunter. "Pervious concrete investigation into structural performance and evaluation of the applicability of existing thickness design methods /". Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Fall2009/w_goede_112409.pdf.

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Thesis (M.S. in civil engineering)--Washington State University, December 2009.
Title from PDF title page (viewed on Jan. 22, 2010). "Department of Civil and Environmental Engineering." Includes bibliographical references (p. 98-102).
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Książki na temat "Pervious pavement"

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Tennis, Paul D. Pervious concrete pavements. Skokie, Ill: Portland Cement Association, 2004.

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Paving with pervious concrete. Atglen, PA: Schiffer Pub., 2010.

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Daines, M. E. Pervious macadam: Trials on trunk road A38 Burton bypass, 1984. Crowthorne, Berks: Transport and Road Research Laboratory, Highways and Structures Dept., Pavement Materials and Construction Division, 1986.

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Daines, M. E. Pervious macadam: Trials on Trunk Road A 38 Burton bypass, 1984. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1986.

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R, Schaefer Vernon, Iowa. Dept. of Transportation. i National Concrete Pavement Technology Center., red. Mix design development for pervious concrete in cold weather climates. Ames, Iowa: Center for Transportation Research and Education, Iowa State University, 2006.

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Części książek na temat "Pervious pavement"

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Xu, Shiguo, i Jihui Gao. "Hydrological and Environmental Modeling Analyses of Pervious Pavement Impact in a Coastal City". W Effects of Urbanization on Groundwater, 367–88. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/9780784410783.ch14.

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Rowe, Amy A., Michael Borst i Thomas P. O'Connor. "Environmental Effects of Pervious Pavement as a Low Impact Development Installation in Urban Regions". W Effects of Urbanization on Groundwater, 344–66. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/9780784410783.ch13.

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Smith, David R., Kevin Earley i Justin M. Lia. "Potential Application of ASTM C1701 for Evaluating Surface Infiltration of Permeable Interlocking Concrete Pavements". W Pervious Concrete, 1–9. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2012. http://dx.doi.org/10.1520/stp104560.

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Kevern, John T. "Pervious Concrete". W Climate Change, Energy, Sustainability and Pavements, 261–73. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-44719-2_8.

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James, William, i Michael K. Thompson. "Contaminants from Four New Pervious and Impervious Pavements in a Parking-lot". W Advances in Modeling the Management of Stormwater Impacts, 207–22. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003208945-11.

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Hernández-Crespo, Carmen, Miriam Fernández-Gonzalvo, Miguel Martín i Ignacio Andrés-Doménech. "Nitrogen in Infiltrated Water from Pervious Pavements Under Different Rainfall Regimes and Pollution Build-up Levels". W New Trends in Urban Drainage Modelling, 30–34. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99867-1_5.

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Bassani, Marco, Luca Tefa i Paola Palmero. "A Preliminary Investigation into the Use of Alkali-Activated Blast Furnace Slag Mortars for High-Performance Pervious Concrete Pavements". W Lecture Notes in Civil Engineering, 183–92. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29779-4_18.

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Jain, A., i J. Chouhan. "Pervious concrete pavement". W Excellence in Concrete Construction through Innovation. Taylor & Francis, 2008. http://dx.doi.org/10.1201/9780203883440.ch82.

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"Pervious concrete pavements". W Concrete Pavement Design, Construction, and Performance, Second Edition, 207–36. CRC Press, 2014. http://dx.doi.org/10.1201/b17043-13.

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"Pervious concrete pavement: Meeting environmental challenges". W Excellence in Concrete Construction through Innovation, 569–74. CRC Press, 2008. http://dx.doi.org/10.1201/9780203883440-91.

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Streszczenia konferencji na temat "Pervious pavement"

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Rowe, Amy A., Michael Borst i Thomas P. O'Connor. "Pervious Pavement System Evaluation". W International Low Impact Development Conference 2008. Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/41009(333)25.

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Rowe, Amy A., Michael Borst, Thomas P. O'Connor i Emilie K. Stander. "Pervious Pavement System Evaluation". W World Environmental and Water Resources Congress 2009. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/41036(342)141.

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Lee, Ming-Gin, Yi-Shuo Huang, Tao-Kuang Chang i Chun-Hua Pao. "Experimental Study of Pervious Concrete Pavement". W GeoHunan International Conference 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/47629(408)12.

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Lee, Ming-Ju, Ming-Gin Lee, Yishuo Huang i Chia-Liang Chiang. "Water Purification of Pervious Concrete Pavement". W International Conference on Sustainable Design, Engineering, and Construction 2012. Reston, VA: American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412688.089.

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Zhang, Zeyu, Guoyang Lu, Dawei Wang i Markus Oeser. "Performance Evaluation of Pervious Pavement Using Accelerated Pavement Testing System". W International Airfield and Highway Pavements Conference 2019. Reston, VA: American Society of Civil Engineers, 2019. http://dx.doi.org/10.1061/9780784482452.013.

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Al-Bihani, Jabber, Chibiukem Okoro, Mohamed Abubakr, Noura Abu Al Faraj i Naji Khoury. "Durability Characteristics of Sustainable Pervious Pavement Materials". W GeoCongress 2012. Reston, VA: American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412121.384.

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Guo, Peng, Boming Tang, Hongzhou Zhu, Min Feng i Yibo Zhang. "Pavement Performance of Steel Slag Pervious Concrete". W Third International Conference on Transportation Engineering (ICTE). Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41184(419)273.

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Chopra, Manoj B., Erik Stuart i Martin P. Wanielista. "Pervious Pavement Systems in Florida—Research Results". W Low Impact Development International Conference (LID) 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41099(367)18.

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Kovác, Marek, i Alena Sicáková. "Pervious Concrete as a Sustainable Solution for Pavements in Urban Areas". W Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.031.

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In the last few years, the use of pervious concrete as a pavement material in low-volume road applications (parking lots, residential roads, pedestrian zone or sidewalks) has gained importance due to its positive environmental aspects. Pervious concrete is one of the most promising sustainable material nowadays. It is a mixture of cement, coarse aggregate, water and admixture, while contains no or little amount of fine aggregates. Comparing a conventional concrete pavement, the pervious concrete system is designed to have enhanced amount of interconnected voids allowing water to percolate through the material. Population growth, continuing urbanization and the growth of impervious urban areas lead to specific environmental and societal impacts, especially urban heat island effect, risk of flash flood, worsening quality of water in river courses and so on. Pervious concrete has remarkable potential to counteract these adverse impacts while providing necessary structural integrity, thus supporting continued urbanization. Pervious concrete is currently under serious research and development in many countries because of enhanced interest of its properties. The paper is intended to bring comprehensive information on characterization, environmental benefits, performance issues and utilization possibilities of pervious concrete.
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Newman, Alan P., Les Duckers, Ernest O. Nnadi i Andrew J. Cobley. "Self Fertilising Geotextiles in Model Pervious Pavement Structures". W World Environmental and Water Resources Congress 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41173(414)69.

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