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Showing 1 to 20 of 51 for “"Blast Furnace Slag"”.
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Effect of blast-furnace slag as cement replacement on hydration, microstructure, strength and durability of concrete
… reduced. This PhD thesis focuses on the use of blast-furnace slag (BFS) as cement replacing material. Blast-furnace slag, a by-product of the steel production, obtains latent-hydraulic properties after rapid cooling and can thus replace clinker in cement. In EN 197-1 (2000), three types of slag …
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Engineering properties of sulphate-bearing clay soils stabilised with lime-activated ground granulated blast furnace slag (GCBS)
… the effects of the addition of ground granulated blast furnace slag (ggbs), activated by 2% calcium hydroxide (Ca(OH)<sub>2</sub>, on the strength, permeability and porosity development of a laboratory prepared clay mix (kaolinite with and without 6% gypsum) and a natural sulphide-bearing clay …
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Performance of No Vibration/No Admixture Masonry Grout Containing High Replacement of Portland Cement with Fly Ash and Ground Granulated Blast Furnace Slag
… with Type F fly ash and/or ground granulated blast furnace slag (GGBFS). The percentages of Portland cement replacement evaluated were 0%, 50%, 60%, and 70% for Type F fly ash. The percentages of Portland cement replacement evaluated were 0%, 60%, 70% and 80% for Type F fly ash and GGBFS.</p> …
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Aqueous reactivity of glassy industrial byproducts in alternative cementitious systems
… focused primarily on metakaolin and IBs such as blast furnace slag and coal fly ash as supplementary and alternative cementitious precursors.
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Characterisation and properties of alkali activated pozzolanic materials.
… concrete. An example of such a waste material is blast furnace slag from the smelting of iron and steel. The US produces 26 million tons of blast furnace slag annually. Most of the slag is slowly cooled in air and it makes a poor pozzolan. Only 1.6 million tons of the slag is available in the …
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DEVELOPMENT OF SELF-HEALING SUSTAINABLE CONCRETE USING RECYCLED MATERIALS
… of concrete blended with ground granulated blast furnace slag (GGBS) and polyvinyl alcohol (PVA) fiber in terms of flexural strength recovery and crack sealing behavior. 50% GGBS-blended concrete was found to have good autogenous healing ability and the addition of PVA fibers indirectly …
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Investigations into the recycling of quarry wastes from the South East of England
… including Cement Kiln Dust, Ground Granulated Blast-furnace Slag and Pulverized Fuel Ash. The mixes were subjected to a CO2 atmosphere for varying lengths of time, to determine their carbonation potential and optimum CO2 exposure time, in order to produce pellets with optimum strength, measured …
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High Strength Pervious Concrete
… like fly ash, silica fume, and ground-granulated blast furnace slag for a portion of the cement. These materials have all been used successfully as supplementary cementitious materials in structural concrete mixes. <br/><br/>This study is divided into two parts: <br/><br/>1- Production of Pervious …
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Reaction condition effects on Re(VII) sorption kinetics at the zerovalent iron-water interface
… (CWT)is presently being used to immobilize LLW. Blast furnace slag is presently being added to the CWT formulation to promote reductive precipitation of the dominant risk driver, pertechnetate, 99Tc(VII)O4- to the sparing soluble 99Tc(IV). Some previous studies show that a variety of hazardous …
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Evaluation of binder grades on rutting performance
… course was a 12.5 mm mix with predominantly blast furnace slag aggregates.;The three different binders were compared by making specimens with each of the two mix designs. The Asphalt Pavement Analyzer, APA, was used to evaluate rutting performance of the gyratory compacted samples. The …
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Study on preparation of high performance CaO-MgO-Al2O3-SiO2 system glass-ceramic with industrial by-products
<p>Blast furnace slag (BFS), iron ore tailings (IOT), and coal fly ash (CFA) are common industrial by-products with huge annual yield and low reuse rate (< 30%). This research was intended to prepare high performance glass-ceramics from these three industrial by-products. What's more, two energy …
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Mitigating alkali silica reaction in recycled concrete
… that fly ash, silica fume and ground granulated blast furnace slag (GGBFS) were effective in mitigating ASR in RCA concrete. Compared to conventional concrete, slightly higher dosages were typically required. The ASTM C 1260/1567 test correlated well with ASTM C 1293 with few …
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Investigation of Concrete Mixtures to Reduce Differential Shrinkage Cracking in Composite Bridges
… (SLWA), one including ground granulated blast furnace slag (GGBFS), and one incorporating both were tested. Preliminary results show that the inclusions of SLWA into a concrete mixture reduced shrinkage by 25% and overall tensile stress by 38%.
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The Evaluation of Permeable Cementitious Media for Nutrient Removal
… (OPC), 50% replacement with ground-granulated blast-furnace slag, and 3% replacement with titanium dioxide (TiO2). OPC cellular concrete mixtures demonstrated beneficial removal at a lower w/c ratio. The nitrate removal process was characterized as slow for the cellular concrete and lightweight …
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The adsorption of phenolic and organotin compounds by clays and cation exchanged clays
… show that a blend of ground granulated blast furnace slag and ordinary Portland cement attenuates 2-chlorophenol more effectively than ordinary Portland cement alone. Tetramethyl ammonium- (TMA-) and tetramethyl phosphonium- (TMP-) montmorillonites were exposed to solutions of phenol or …
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The comparative ecology of highrate plastic, conventional mineral and mixed plastic mineral media in the treatment of domestic sewage in percolating filters.
… filters construc-ted, one containing 2 m[3] of blast furnace slag and another 2 m[3] of random plastic medium and the third 0.8 m[3] of plastic mediumupon 1.2 m[3] of slag. The comparative treatment efficienciesof the various packings were studied at three different loadings,for three months …
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Drinking Water Treatment Waste as an Alternative for Internal Curing and Cement Replacement in Concrete
… industrial byproducts such as fly ash and blast furnace slag which helps reduce the quantity of landfilled materials while reducing CO2. The large volume of drinking water treatment waste generated by each metropolitan city has motivated many to research possible beneficial usage. Despite …
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The Development of Sustainable Lime-Based Building Wall Components
… were partially replaced with Ground Granulated Blast-furnace Slag (GGBS) an industrial by-product from the manufacture of steel. During the preliminary phase of the research, two different approaches to establishing the moisture demand during compaction of test specimens were investigated, using …
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Complete stress-strain characteristics of high performance concrete
… chemical and mineral admixtures such as fly ash, slag cement, and silica fume, ground granulated blast furnace slag, as well as air-entraining agents are commonly used in the field construction. It has been found that high perforinance concrete can improve the workability, ultimate strength and …
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