Dissertationen zum Thema „Blast furnace slag (BFS)“
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Pawlowicz, Jakub. „Evaluation of air entraining behaviour in concrete using computer aided methods on hardened samples“. Thesis, KTH, Betongbyggnad, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264752.
Betongindustrins ökande medvetenhet om hållbarhet leder till att man inom dimensionering ochutförande fokuserar mot att undvika kostnadskrävande och oförutsedda underhållsåtgärder ochistället lägga större vikt på att förebygga skador i produktionens tidiga skeden. En av dessaåtgärder, som hanterar problemet frostnedbrytning, är en medveten inblandning av luftbubblor ibetongen. Mekanismen för att skapa luftporssystemet kan emellertid bli negativt påverkad underolika skeden av produktionen av många faktorer såsom cementtyp, tillsatsmedelsdos, gjutvillkoroch blandningsordning. Därför behöver man reflektera över pålitliga verktyg för utvärderingenav slutprodukten. Den experimentella studien, som presenteras i detta arbete, fokuserar motförståelse hur slagg och tillsatsmedelsdos påverkar den hårdnade betongens luftporssystem. Tretyper av cement utvärderades, dels ett normalt portlandcement, dels två typer av CEM III-cementmed olika andelar av slagg. Optimala mängder av luftporbildare och flyttillsatsmedel valdesmen reducerades senare för att undersöka deras inverkan på totalt luftinnehåll samt luftporernasavståndsfaktor och specifika yta. Den huvudsakliga metoden som valdes för denna utvärderingvar en flatbäddsscanner (kontorsmodell) för att ta bilder och användningen av en programvaravid namn BubbleCounter för att analysera luftporssystemet. Detta tillvägagångssätt baseras påanalys av tvärgående linjer och kräver en speciell behandling av ytan för att åstadkomma kontraster.Provkroppar för analysen sågades ut ur hårdnade betongkuber och polerades för att erhålla en jämnyta. Provkropparna var senare behandlade med svart bläck och zinkoxidpasta för att åstadkomma entydlig kontrast mellan de vita porerna och den svarta ytan av cementpasta och ballast. För att studeranoggrannheten hos denna metod användes som jämförelse även mer konventionella metoder sommätningar med trycksatta givare och luftporsanalys. De framtagna blandningarna visade signifikantaskillnader i luftporernas egenskaper mellan betong med normalt portlandcement och betong medslaggcement, där den senare påverkades i mindre grad av reduktioner i dosen luftporbildare.Förändringar I avståndsfaktor och specifik yta noterades också men försämringen följde inte sammamönster som den för totala luftinnehållet. Ingen signifikant skillnad mellan de två cementeninnehållande slagg kunde observeras. En intressant inverkan av det använda polykarboxylateterbaseradeflyttillsatsmedlet på luftporbildarens reaktivitet noterades. Den visade en försämringav luftporernas egenskaper vid en reduktion av mängden flyttillsatsmedel. En jämförelse avresultaten från de olika metoderna för luftporsanalys indikerade en övergripande överensstämmelsegällande de uppmätta luftporssystemens förändring p.g.a. förändringar i mängden luftporbildare.Programvaran BubbleCounter tenderade emellertid att något överskatta materialets motstånd motfrostnedbrytning med de mest optimistiska värdena för luftporernas avståndsfaktor och specifikayta.
Oberlink, Anne Elizabeth. „NON-PORTLAND CEMENT ACTIVATION OF BLAST FURNACE SLAG“. UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_theses/25.
McQueen, Mark. „Heat recovery from molten blast furnace slag in a fluidized bed“. Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ55918.pdf.
Boltz, Daniel Edward. „Early performance of concrete pavement containing ground granulated blast furnace slag“. Ohio : Ohio University, 1998. http://www.ohiolink.edu/etd/view.cgi?ohiou1176839817.
Schlesinger, Mark E. „LEAD OXIDE SOLUBILITY IN LEAD BLAST-FURNACE SLAGS (ACTIVITY, THERMODYNAMICS)“. Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/291261.
Ryösä, Elin. „Mineral Reactions and Slag Formation During Reduction of Olivine Blast Furnace Pellets“. Doctoral thesis, Uppsala universitet, Institutionen för geovetenskaper, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-9389.
Talefirouz, Davood. „Use Of Granulated Blast Furnace Slag, Steel Slag And Fly Ash In Cement-bentonite Slurry Wall Construction“. Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615432/index.pdf.
9 m/s. Some investigations have pointed toward improved performance using admixtures that would provide low permeability. In this study, Soma thermal power plant fly ash, granulated blast furnace slag, lime, and steel slag are used as admixture to improve the performance of slurry walls. Permeability, compressive strength, slump, compressibility properties of the mixtures were found and checked for the minimum requirements. According to the findings of this study, granulated blast furnace slag (GGBS), fly ash and steel slag can be used at certain percentages and curing periods as additive in cement-bentonite barrier wall construction. Permeability of specimens having fly ash decreases by increasing fly ash content. Mixtures having 50 % of GGBS type I with 5 % of lime and 9% bentonite content gave acceptable results in 28 days of curing time. Specimens including 50 % of GGBS type II with 5 % of lime and 9% bentonite content gave the higher permeability value in 28 days of curing time with respect to GGBS type I. In addition, most of the mixtures prepared by steel slag gave the acceptable permeability values in 28 days of curing period. Unconfined compressive strength of all mixtures increase by increasing curing time. Cc, Cr, Cv, kcon values were found from consolidation test results. Permeability values found from consolidation tests are 10 times to 100 times higher than flexible wall k results for the same effective stress of 150 kPa. Generally, mv values are decreasing with increasing curing time. As mv decreases, D increases.
Ökvist, Lena Sundqvist. „Optimisation of the slag formation in a blast furnace charged with 100% pellets“. Licentiate thesis, Luleå tekniska universitet, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-18685.
Godkänd; 2001; 20070313 (ysko)
Andersson, Annika. „A Study on Selected Hot-Metal and Slag Components for Improved Blast Furnace Control“. Licentiate thesis, KTH, Materials Science and Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1674.
The main objective of this work was to gain an increasedunderstanding of selected blast furnace phenomena which couldbe utilized for an improved blast furnace process control. Thisthesis contributes with both a model study and an experimentalstudy on blast furnace tapping, and results from these findingscan be used to enhance the control of the blast furnace.
The work was divided in two parts. The first part dealt witha model study for optimisation of the blast furnace burdencalculation. During the second part the frequency of thehot-metal and slag sampling was increased compared to routinesampling throughout the taps of a commercial blast furnace.Thereafter, composition variation and correlation betweendistribution coefficients were examined.
With an optimisation of the burden calculation the firststep towards controlled hot-metal production is taken, sincethe optimal material mixture for a desired hot-metalcomposition could easily be found. Due to the fact that theoptimisation model uses yield factors, which are easy tocalculate from material and hot-metal compositions, thesevalues have to be accurate for a controlled process control ofthe furnace. The study of hot-metal and slag compositionsduring tapping concluded that variations exist. The largevariations for C, Si, S, Mn and V in hot metal during tappinglead to the conclusion, that one single sampling ofhot metalwas not enough to get a representative value for thecomposition. The solution was to use a double-samplingpractise, were the hot metal was sampled first after tap startand secondly short after slag start, and subsequently anaverage composition value was calculated. The following studywas on the elemental distribution between hot metal and slagfrom a thermodynamic point of view. The major conclusion fromthis study was that the distribution coefficients behaved asexpected when looking at the equilibrium reactions. The studiedslag-metal distributions were also showing strong, trend-likerelationships, which was not affected by the operational statusof the blast furnace during the studied sampling period.
The overall conclusion is that with a more reliablecomposition of hot metal and slag from the taps, thedistribution coefficients could be calculated with betterprecision and hence, the yield factors for the optimisationmodel would be more accurate. This procedure would probablylead to a more reliable burden optimisation and a thereforebetter and more stable blast furnace control.
Topbas, Selim. „Effect Of Trass, Granulated Blast Furnace Slag And Fly Ash On Delayed Ettringite Formation“. Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612494/index.pdf.
Carette, Jerome. „Towards Early Age Characterisation of Eco-Concrete Containing Blast-Furnace Slag and Limestone Filler“. Doctoral thesis, Universite Libre de Bruxelles, 2015. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/223447.
Doctorat en Sciences de l'ingénieur et technologie
info:eu-repo/semantics/nonPublished
Kalcioglu, Ali Ferdi 1960. „Distribution of antimony between carbon-saturated iron and blast furnace slags“. Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277129.
Khan, Saadat Ali. „Pore pressure and moisture migration in concrete at high and non uniform temperatures“. Thesis, King's College London (University of London), 1990. https://kclpure.kcl.ac.uk/portal/en/theses/pore-pressure-and-moisture-migration-in-concrete-at-high-and-non-uniform-temperatures(9016d00a-3f08-4eb8-a9b3-a78d405d6686).html.
Mäkikyrö, M. (Marko). „Converting raw materials into the products–Road base material stabilized with slag-based binders“. Doctoral thesis, University of Oulu, 2004. http://urn.fi/urn:isbn:9514272528.
Reeb, Charles. „Synthèse et caractérisation de composites à base de matériaux alcali-activés incorporant des huiles minérales pour la gestion des huiles tritiées“. Electronic Thesis or Diss., Centrale Lille Institut, 2022. http://www.theses.fr/2022CLIL0020.
This work deals with the conditioning of tritiated industrial oils in the context of nuclear wastes that are still deprived of an appropriate treatment solution. The strategy consists in directly conditioning model mineral oils in alkali-activated materials (AAM), additionally functionalized with a γ-MnO2/Ag2O hydrogen/tritium getter. Geopolymer (GEO) and alkali-activated blast furnace slag (AABFS) are considered as AAM. In the presence of surfactants, the oil was successfully emulsified (small and homogeneous droplets) in both types of AAM. Two surfactant mechanisms are distinguished acting by: 1) decreasing the interfacial tension or 2) promoting oil-particles interactions. Mechanism 1 should be favored if workability of fresh mixtures is required, while mechanism 2 should be targeted to provide a better confinement of oil owing to strong oil-particles interactions. After curing, AAM-OIL composites are obtained. There is no influence of the oil and surfactants on the setting time and strength development of AAM. The main reaction products (C-A-S-H in AABFS and N-A-S-H in GEO) are not impacted. However, the addition of surfactants leads to increased porosity of AAM due to air bubbles stabilization. AAM-OIL composites immobilizing 20%vol. of oil all have compressive strengths higher than 20 MPa, which is a more than the 8 MPa required from ANDRA. Overall, according to both fresh and hardened states observations, GEO exhibit higher performances for the immobilization of oil than AABFS. The efficiency of the γ-MnO2/Ag2O getter was assessed in AAM via in-situ hydrogen production by gamma irradiations or magnesium corrosion. Both types of experiments agree to the higher performances of the getter in GEO than in AABFS. This is explained by reducing sulfur species present in AABFS, which react with the oxidizing getter components. Finally, wetting measurements demonstrated that industrial oils have an excellent affinity for GEO, testifying that long-term water seepage is not likely to dislodge them from GEO-OIL composites. In the context of nuclear waste management, GEO functionalized with γ-MnO2/Ag2O getter appears as a promising option for disposal of tritiated oils. However, additional investigations of HTO confinement need to be performed that could renew the interest of using AABFS
Yazici, Veysel. „Stabilization Of Expansive Clays Using Granulated Blast Furnace Slag (gbfs), Gbfs-lime Combinations And Gbfs Cement“. Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12604946/index.pdf.
Delibas, Tughan. „Effects Of Granulated Blast Furnace Slag Trass And Limestone Fineness On The Properties Of Blended Cements“. Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614072/index.pdf.
m) and coarser (+45&mu
m) than 45 &mu
m in order to determine the ingredients of -45 &mu
m, which is known to be more reactive. As a result it was shown that the grindability differences of the cement ingredients affect the properties of blended cements. An increase in the specific surface area increases both the compressive strength and heat of hydration values and adversely affects the loss on ignition values. The results also showed that if the cement particles were ground finer, it was more prone to moisture which resulted in higher loss on ignition values after longer periods.
Hamden, Rafidah Binti. „Aerated blast furnace slag filters for enhanced nitrogen and phosphorus removal form small wastewater treatment plants“. Thesis, University of Leeds, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.535097.
Veith, Gabriele Helene. „Engineering properties of sulphate-bearing clay soils stabilised with lime-activated ground granulated blast furnace slag (GGBS)“. Thesis, University of South Wales, 2000. https://pure.southwales.ac.uk/en/studentthesis/engineering-properties-of-sulphatebearing-clay-soils-stabilised-with-limeactivated-ground-granulated-blast-furnace-slag-gcbs(65f3da02-94cc-4db6-887c-8d94bead65b4).html.
Johnson, William J. „The Effect of Chemical Composition of Blast-Furnace Slag on Compressive Strength and Durability Properties of Mortar Specimens“. Scholar Commons, 2017. https://scholarcommons.usf.edu/etd/7410.
John, Vanderley Moacyr. „Cimentos de escória ativada com silicatos de sódio“. Universidade de São Paulo, 1995. http://www.teses.usp.br/teses/disponiveis/3/3146/tde-20102014-114027/.
Binders based on ground granulated blast furnace slag (BFS) are suitable for the building industry, mainly if the use of Portland cement is expensive or may cause problems, such as: alkali sensitive fibre-reinforced cement and concretes and low heat-hydration concretes. BFS is activated by sodium silicates and hydrated lime. The compound\'s proportions are: Na2O - 2.5 and 5.0%; SiO2 from 0 to 14.8%; CaOH2 - 0, 2.5 and 5%. The increase of Na2O and SiO2 amounts allows a considerable improvement of binder strength, with values up to 100 MPa. This increase of the strength is related to the decrease of the porosity for a constant water-binder ratio. The porosity is affected certainly by the reduction of the degree of cristalynity of the hydrated compounds, due to the increase of the speed of precipitation of the hydrates or the N-C-S-H gel. It is possible to obtain BFS binders stronger than the Portland cement, with similar hydration heat. The carbonation rate of these new binders is equivalent to those of Portland cement specimens with similar strength. However these BFS binders have higher drying shrinkage.
Kietliñska, Agnieszka. „Engineered Wetlands and Reactive Bed Filters for Treatment of Landfill Leachate“. Licentiate thesis, KTH, Land and Water Resources Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1693.
The main objectives of this study were to investigate (i) anovel wetland treatment technology and (ii) selected bed filtermedia for the removal of contaminants from landfill leachate. Areview of the literature concerning experiences of the use ofconstructed wetlands (CW) for the removal of nitrogen fromlandfill leachate, showed that at least three groups oftreatment systems are in practice: sub-surface flow wetlands,hybrid systems (a combination of vertical and horizontal flowwetlands) and, compact constructed wetland (CCW). Most of thesetypeswere generally effective in reducing nitrogen (N,e.g.NH4-N, dominant N species in leachate) down toeffluent concentrations of about 10 mg L-1. Unfortunately, very little evidence ofresponsible mechanisms for the removal of N was presented,although some data indicated denitrification. The treatmentperformance of a compact constructed wetland (CCW) applied atthe Tveta Landfill, Södertälje, Sweden, wasevaluated. Chemically purified leachate and untreated leachatewere applied in periods of 7 day submergence and 7 day drainageto different sections of the CCW. The removal efficiency variedbetween 40 and 82%, and a mass removal rate of up to 5.1 g m2d-1was achieved. The chemical pre-treatment had adecisive role for the highest removal efficiencies obtained andit was unclear whether that treatment enhanced the efficiencybecause of lower toxicity and/or content of fewer competingcations. The possible combination of bed filter media and CCWas an ecotechnological treatment method for landfill leachatewas investigated by bench-scale laboratory column experiments.Reactive filter media (sorbents) was selected from their knownor suggested capacities for removal of heavy metals, nitrogenand phosphorus. Quartz sand or natural sand from an esker wasused as reference medium. Peat was used as an additionalcomponent in mixtures with the reactive media Polonite®(product from the bedrock opoka) and blastfurnace slag (BFS). A small column study also involved zeolite.Phosphorus was efficiently removed by Polonite®and NH4-N to some extent. Concerning metal removal, thebest performance was found as well for Polonite®, especially for Mn, Fe, Zn and Cu. The BFSshowed good removal efficiency for Cu, Ni and Mo. The removalof different elements was suggested to be a combination ofseveral factors,e.g.precipitation, ion exchange and adsorption. Priorto full-scale application of reactive filters at a landfillsite, matrix selection, filter design and operationalprocedures must be developed.
Keywords:Blast furnace slag; Compact constructedwetland; Metals; Nitrogen; Polonite; Sorbents
Alekseev, Kirill. „Hazardous bauxite residue, blast furnace slag, and foundry sand application as the main components for environmentally friendly red ceramics production“. Universidade Tecnológica Federal do Paraná, 2017. http://repositorio.utfpr.edu.br/jspui/handle/1/2868.
In the presented research were used residues of aluminum and iron production. Bauxite residue, which is also called bauxite tailings or red mud, and blast furnace slag are the key wastes of metallurgical industry. There was also used foundry sand, which is a residue of casting process. These three components were used together to develop ceramic construction material. The main idea was to use industrial wastes only, no traditional natural materials. The waste glass and wood ash were added to the compositions in order to decrease melting point of the samples. In the research 24 compositions were sintered at 800-1225°C and their properties were studied. Their mechanical characteristics were analyzed using flexural strength test, measuring water absorption, density, and linear shrinkage. Physicochemical properties were studied by XRF, XRD, AAS, SEM, EDS, LAMMA, mapping, DTA, and TGA. The main reason for high results of flexural strength (19.78 MPa) of the samples was identified as a development of new amorphous formations. As a result of research, some compositions were suggested for specific construction materials production. Compositions containing red mud (40-100%), blast furnace slag (0-50%), foundry sand (0-50%), waste glass (0-20%), and wood ash (0-20%), according to Brazilian Norms and regulations for construction materials, may substitute traditional ceramic materials, which involve enormous exploration of natural resources.
Komosná, Kateřina. „Studium mechanismu působení přísad redukující smrštění v alkalicky aktivovaných materiálech“. Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2017. http://www.nusl.cz/ntk/nusl-295703.
Tiwari, Jai Narain. „Characterization of Blast Furnace Slag“. Thesis, 2015. http://ethesis.nitrkl.ac.in/6756/1/Characterization_JNTiwari_2015.pdf.
邱俊萍. „Geopolymer Produced Using Blast Furnace Slag“. Thesis, 2002. http://ndltd.ncl.edu.tw/handle/73726583962801188322.
國立臺北科技大學
材料及資源工程系碩士班
90
Blast furnace slag is formed in the process of pig iron manufacture from iron ore, combustion residue of coke, fluxes and other materials. Generally, the way to utilize granulated blast furnace slag is to partially replace Portland cement. There are at least 4 million tons/year granulated blast furnace slag used in Taiwan. Granulated blast furnace slag is a non-toxic material, and can be a good raw material to making high-value geopolymer for fire resistance utilization. Geopolymers, a kind of inorganic polymers, have been gradually got attention of the world as potentially revolutionary materials. Similar to natural zeolite minerals, geopolymer is a class of three-dimensionally networked alumino-silicate materials. The aim of this research work is trying to fabricate a granulated blast furnace slag-based geopolymer for fire-resistance purpose and hope to understand the mechanism of geopolymerisation. Granulated blast furnace slag has been used for the active filler to make geopolymer in this research work. It was found that using metakaolinte as the inactive filler, the geopolymer have obtained the best physical and mechanical properties. For fire resistant tests, a 10 mm thick geopolymer panel exposed to a 1100℃ flame, the measured back-side temperatures only reach 240℃ after 35 minutes. The products can be fabricated for construction purposes and have great application potential.
Saheb, Vikas. „Studies on Blast Furnace Slag Flow Characteristics“. Thesis, 2012. http://ethesis.nitrkl.ac.in/3868/2/output.pdf.
Aman, Sumit Kumar. „Development Glass Ceramics from Blast Furnace Slag“. Thesis, 2014. http://ethesis.nitrkl.ac.in/6078/1/110CR0539-1.pdf.
Singhal, Ankit. „Flow Characteristics of Indian Blast Furnace Slag“. Thesis, 2015. http://ethesis.nitrkl.ac.in/7758/1/2015_Flow_Characteristics_Singhal.pdf.
Verma, Indradev. „Modeling of High Alumina Blast Furnace Slag“. Thesis, 2015. http://ethesis.nitrkl.ac.in/7828/1/2015_MT_Modeling_VERMA.pdf.
Dash, Supratik, und Nachiketa Mohanty. „Optimization of Flow Characteristics of Blast Furnace Slag“. Thesis, 2012. http://ethesis.nitrkl.ac.in/3194/1/Full_Thesis.pdf.
Rajalaxmi, Bagasingi. „Stabilization of Red Soil Using Blast Furnace slag“. Thesis, 2015. http://ethesis.nitrkl.ac.in/7109/1/Stabilization_Rajalaxmi_2015.pdf.
Tsai, Chia-Jung, und 蔡嘉榮. „Properities of Ground-Granulated Basic Oxygen Furnace Slag and Blast-Furnace Slag Mixture as Cementitious Materials“. Thesis, 2014. http://ndltd.ncl.edu.tw/handle/29637929769253692500.
國立臺灣海洋大學
材料工程研究所
103
This study analyzed the feasibility of ground-granulated blast-furnace slag (GGBS) and ground-granulated basic oxygen furnace slag (GGBOS) blended cements according to the standard specifications of ASTM C821 and ASTM C595. Through tests, this study verified that GGBOS could be used as alkali activators for GGBS and that the mixture proportions of S4I6 and S5I5 correspond with the physical and chemical requirements specified in ASTM C595/C595M - 13. Among S3I7, S4I6, and S5I5, the mixture proportion of S4I6 exhibited the highest performance by reaching 90% of the compressive strength of ordinary Portland cement mortar. The durability in this study is defined as ASTM D4404 mercury test method, ASTM C1202 rapid rate of ion penetration test, CNS 3763 permeability test and ASTM C418 abrasion test. RCPT test shows cumulative electricity in GGBS and GGBOS blended cement are significantly lower than in the OPC, while the best three performance in S4I6 are 920 C,1623 C and 2199 C, only about 22 ~ 34 % comparing to the OPC. Abrasion test results that blended cement concrete abrasion coefficients are about 1.5 to 2.5 times higher than OPC. Mercury test results represents that the total cumulative pore volums is about 1.1 to 1.8 times higher than OPC. The best total cumulative pore volume are 7.23 ml/g, 8.7 ml/g and 10.38 ml/g in S4I6 , which only about 10 to 16 percent age higher than OPC. The permeability of blended concrete are significantly higher than the permeability of OPC about 48 to 80 times in code CNS 3763 permeability test, of which the best-performing in S4I61 are 3.9 %, 5.98 % and 6.27 %, 48 to 66 times comparing to OPC. These results represent that the blended cement concrete have good resistance to chloride ion penetration, but obviously the resistance to abrasion are below OPC.
LU, WEN-RU, und 呂文儒. „Engineering characteristics of granulated blast furnace slag-cement concrete“. Thesis, 1988. http://ndltd.ncl.edu.tw/handle/77334059348081469037.
Ho-TsoChiang und 江禾左. „Effect of Blast Furnace Slag on Porous Asphalt Concrete“. Thesis, 2012. http://ndltd.ncl.edu.tw/handle/32115477221380681893.
國立成功大學
土木工程學系碩博士班
100
Blast furnace slag, the by-product of the ironmaking process, have been used as an alternative material widely; Mineral powder and cement ,used for asphalt concrete filler,both are from the exploitation of the natural environment.The uniformity and composition of blast furnace slag are similar to cement, the cost is also more economical. In this study,mineral powder ,blast furnace slag and cement were used in porous asphalt concrete for assessment. The results showed that it had a better performance in the Marshall flow value, indirect tensile strength, resilient modulus and resistance to abrasion of Cantabro when the blast furnace slag was used as the filler,It significantly improved the stiffness of the Marshall specimens,cement and mineral powder had better performance in anti-stripping, and the blast furnace slag also performed well. The results of the research showed that the slag can be used as a filler in the porous asphalt concrete.
Dinkar, V. C. „Viscous properties of synthetic high alumina blast furnace slag“. Thesis, 2014. http://ethesis.nitrkl.ac.in/5716/1/e-82.pdf.
Panigrahi, S., und B. K. Sahoo. „Study on flow characteristics of primary blast furnace slag“. Thesis, 2014. http://ethesis.nitrkl.ac.in/5887/1/E-77.pdf.
GAO, YI-SYUAN, und 高一瑄. „Evaluations of Geopolymeric-Based Pervious Concrete containing Basic Oxygen Furnace Slag and Ground Granulated Blast Furnace Slag“. Thesis, 2016. http://ndltd.ncl.edu.tw/handle/q5c398.
國立高雄應用科技大學
土木工程與防災科技研究所
104
In recent years, the gradual rise of domestic environmental awareness, we actively looking for alternative natural resources and promote the recycling of waste, in order to achieve sustainable development of resources, and Basic Oxygen Furnace slag steelmaking process as a byproduct produced in the. In urban areas, concrete and asphalt surface is extensive use of concrete and asphalt lack of permeability, resulting in urban heat island effect and can reduce the temperature of porous concrete. In this study, using basic oxygen furnace slag resourced on pervious concrete, ground granulated blast furnace slag based geopolymer in replacing cement, exploring the properties to reuse resources. Two kinds of aggregate particle size basic oxygen furnace slag respectively 4.75-9.5mm and 9.5-19mm; liquid to solid ratio of 0.5, 0.6, and three kinds pore filling pulp percentage is 40%, 50%, 60%. Respectively, compressive strength, flexural strength, splitting strength and other mechanical testing and communicating porosity, permeability coefficient test, British Pendulum Number, discussion basic oxygen furnace slag and ground granulated blast furnace slag based geopolymer pervious concrete on engineering properties. The results showed that the ratio of permeability coefficient are between 4.45-8.04 cm/sec, in accordance with Construction and Planning Agency Ministry of the interior for permeability coefficient (permeable paving is greater than 10-2 cm/sec). Unit weight are between 2206-2326 kg/m3, the compressive strength are between 3.24-9.24 MPa, the flexural strength are between 0.39-1.75 MPa, the splitting strength are between 0.47-2.83 MPa and BPN are between75.31-94.11. From the experimental results, the ground granulated blast furnace slag based and basic oxygen furnace slag geopolymer pervious concrete along of pore filling pulp percentage is higher, compressive, flexural, splitting strength is also higher and the lower the water permeability coefficient. Engineering properties of ground granulated blast furnace slag based and basic oxygen furnace slag geopolymer pervious concrete will as liquid-solid ratio, particle size, pore filling pulp percentage affected.
Patnaik, Pallabi, und Shivani Dumpawar. „An attempt at optimizing the flow characteristics of blast furnace slag by Investigation with slag obtained from blast furnace of Rourkela steel plant, SAIL“. Thesis, 2010. http://ethesis.nitrkl.ac.in/1933/1/pallu_final_thesis.pdf.
Chen, Li-Hsiung, und 陳立雄. „Study of Grounding Resistance Reduction Using Granulated Blast-Furnace Slag“. Thesis, 2001. http://ndltd.ncl.edu.tw/handle/86299596908480309139.
國立成功大學
電機工程學系
89
The granulated blast furnace slag is waste of the by-products of steel-making plant. It mostly applies in civil engineering、build engineering and build road now, it will be the major task of the environmentalism from now on that the granulated blast furnace slag is reclaimed in other domain. The characters of low resistivity and glue about the granulated blast furnace slag, can product glue under cement-hydrate catalyst, and it should be material of the grounding resistance reduction. This paper discuss the granulated blast furnace slag of main material of the grounding resistance reduction. According to the additives of the differnet proportion of water、cement and salt, its resistivity and clot strength are considered, the optimum combination is sought out. The finished product can be used in the grounding resistance reduction. And the grounding bar is buried in it, The proposed method is testified that achieve the purpose of reducing the grounding resistance effectively by measurement result.
Chen, Tsung-Rurng, und 陳聰榮. „Slag Resistance of AlO-SiC-C Blast Furnace Trough Castables“. Thesis, 1993. http://ndltd.ncl.edu.tw/handle/77700651985180221872.
Chang, Ming-Fung, und 張明峰. „A Study of the Mechanical Behaviors of Blast Furnace Slag and De-Sulphurized Slag“. Thesis, 1994. http://ndltd.ncl.edu.tw/handle/09744532746748695688.
Chung, Hsin-Lun, und 鍾欣倫. „Properties of High Strength Concrete with Ground Granulated Blast Furnace Slag“. Thesis, 2008. http://ndltd.ncl.edu.tw/handle/56244543396507808828.
Chen, Jhin-Hong, und 陳志宏. „Hydraulic Structures made by Reactive Powder Concrete Containing Blast Furnace Slag“. Thesis, 2015. http://ndltd.ncl.edu.tw/handle/90018948707557045061.
國立高雄應用科技大學
土木工程與防災科技研究所
103
Compressive stress of concrete used in hydraulic structures is 21 MPa usually in Taiwan. This kind of flood control structures is hard to resist the abrasion by water with sand and gravel. Meanwhile, hydraulic structure is easy to induce cracks in concrete due to earthquake. In this research, reactive powder concrete (RPC) with 150MPa is applied to hydraulic structure. The properties of RPC were investigated by using slag to replace partial silica fume and adding 1% and 2% steel fibers. Those properties include compressive strength, flexural strength, fracture toughness and shear strength with and without water contents. Dynamic compressive strength, impact resistance, volume abrasion, freezing and thawing resistance were also conducted. Results show that the compressive strength and shear strength of RPC containing water are always lower than those of without water, nevertheless, elastic Young modulus has less effective to water content. In addition, flexural strength of RPC containing water is higher that without water. Fracture toughness of RPC is at least three times higher than that of normal concrete. While steel fibers were added to RPC, fracture toughness increases two times more. Hence, to increase impact resistance of hydraulic structure, RPC had better add proper steel fibers. To design hydraulic structure made by RPC, the shear strength is suggested to deduct 20% at least. RPC has a higher resistance of volume abrasion, only 30% volume abrasion of normal concrete. RPC with partial slag replacements also owns high freezing and thawing resistance.
Huang, Chi-Fong, und 黃基峰. „Study on Air-cooled Blast Furnace Slag Used for Pervious Concrete“. Thesis, 2014. http://ndltd.ncl.edu.tw/handle/75562026721968897095.
國立屏東科技大學
土木工程系所
102
This study used China Steel Corporation (CSC) byproduced air-cooled blast furnace slag as aggregate material in the making of pervious concrete. The pervious concrete specimens were built according to respective water-cement ratios W/C ranged from 0.37 to 0.49, whilst aggregate particle size was between 4.8~19.1 mm. Tamping tools were two steel rods, one with 5 cm diameter round bottom, 2 cm thickness and the other with 5×5 cm square bottom, 2 cm thickness, were used to impact cylindrical and beam specimens respectively. The specimens were made by the same degree of impacting, and were performed the compressive strength, flexural strength, permeability coefficient, and porosity tests. Hopefully, the W/C of maximum strength concrete was found, and the requirements of permeability and water retention were satisfied as well. Test results showed that, both the 28 day maximum compressive strength fc and maximum modulus of rupture R occurred at W/C=0.48. The values were fc=171.4kgf/cm2 and R=41.1kgf/cm2. The mix for this specific W/C was 350 kg cement, 160 kg water, 3.5 kg curing agent and 1375 kg slag aggregate. The ratio of the 28 day compressive strength to modulus of rupture R/fc were between 0.18~0.27, averaged at 0.22, higher than that of normal concrete about 0.15. The permeability coefficient k values ranged between 0.66~2.41 cm/sec, larger than the criteria value 0.01 cm/sec proposed by Architecture and Building Research. The n values ranged between 18.5%~32.5%, also larger than the criteria value 15%.
Mason, Nicholas Robert. „Effects of ground granulated blast furnace slag in Portland cement concrete“. 2003. http://catalog.hathitrust.org/api/volumes/oclc/54106741.html.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 71-75).
Dhurandhar, Vikas. „Statistical Model for Estimating the Flow Characteristics of Blast Furnace Slag“. Thesis, 2016. http://ethesis.nitrkl.ac.in/9335/1/2016_MT_VDhurandhar.pdf.
CHUANG, YA-LI, und 莊雅琍. „Engineering Properties of Ground Granulated Blast Furnace Slag - Bagasse ash Composite Geopolymer“. Thesis, 2017. http://ndltd.ncl.edu.tw/handle/vxe57h.
國立高雄應用科技大學
土木工程與防災科技研究所
105
Research bagasse ash with Alkaline Solution as the main material to make Inorganic polymers. The modulus of sodium silicate 0.6, 0.8 and 1.2, various dosages of activator 6%, 8% and 10% and fixed water-solid ratios 0.35 and 0.4, to assess on the engineering properties. The research results show that: First, when bagasse ash replacement higher, its flowability gets worse. Second, when modulus of sodium silicate increases then the slump and slump flow decrease. Third, 10% of bagasse ash replacement which compressive strength and sulfate resistance’s effect is optimal. Forth, 20% bagasse ash replacement, its drying shrinkage phenomenon is the smallest. Fifth, curing into saturated limewater of compressive strength is less than curing at atmospheric conditions, then curing into saturated limewater of drying shrinkage phenomenon is lower than curing at atmospheric conditions. Finally, when bagasse ash replacement form 0% to 20%, its water resistance of softening coefficiency is greater than 0.85, therefore bagasse ash replacement form 0% to 20% is suitable for waterproof material.
Chiu, Chia-Wei, und 邱嘉威. „Flexural Behavior of Engineered Cementitious CompositesDesigned with Ground Granulated Blast Furnace Slag“. Thesis, 2008. http://ndltd.ncl.edu.tw/handle/15917445597916465518.
Tseng, Jyh-Chih, und 曾志企. „Recycle White Carbon Sludge and Blast Furnace Slag as Resources in Concrete“. Thesis, 2015. http://ndltd.ncl.edu.tw/handle/80747509269847393287.
國立聯合大學
土木與防災工程學系碩士班
103
The purpose of this study is to explore the possibility of using white carbon sludge (WCS), a by-product from the manufacturing rubber of the chemical industry, to replace partial cement in cement-concrete. The emphases are on its material strength and engineering properties. WCS sludge is rich in hazardous nano-particles of SiO2, these hazardous ingredients may be harmful to the ecological environment, and the WCS could be a Pozzlan material and be suitable for recycling in cement concrete. Following our experimental test results, the WCS-blended cement mortar may use in practical engineering potentially, but the lower fluidity need improvement. The proposal program will added the blast furnace slag and superplasticizer to enhance the workability of concrete, so that we use the Taguchi method to determine the optimal setting of cement mortar. Five control factors with four levels each in L16(4)5 orthogonal array are considered to design in this experiment. The compressive strength of each cement mortar sample is measured and the corresponding S/N ratios will be calculated to investigate the optimal settings. The suitable ratio of the WCS sludge and blast furnace slag (BFS) to cement is to be adopted for producing compound for the WCS-BFS blended cement mortar (SBCM), and then the compressive strengths of the SBCM will be compared with those of the OPCM (control group, ordinary Portland cement mortar). Therefore, the optimal ratio for the WCS sludge and BFS to cement and the water to cementitious will be adopted to mold the WBS-BFS blended cement concrete (SBCC). Also, the cylindrical SBCC specimens are to be experimented by group, and the reference specimens of ordinary Portland cement concrete (OPCC) with the same water to cememtitious ratio are also to be made for comparisons, including compressive strength test, mass growth measurment, setting time test, and UPV measurment. These experimental tests will be conducted to evaluate the possibilities for using the recycled WCS sludge and blast furnace slag for the practical engineering applications. The goal of this study is to transform the waste materials of WCS sludge into a valuable resource so as to eliminate its disposal problems and to maintain the sustainable development of earth.