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Results of this study indicated that the 50% fly ash replacement of Portland cement increased the rupture modulus of the recycled concrete. Conversely, a mixture with over 50% cement replacement by either fly ash or slag or a combination of both exhibited detrimental effect on the compressive strength, rupture modulus, and drying shrinkage.
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The use of fly ash as a stabilizer for SS base has been widely studied, as in LFSS [59], lime-fly ash stabilized steel slag and crushed stone [71], fly ash-steel slag soil [72], and fly ash-steel ...
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Residues such as fly ash, wollastonite, limestone, steel slag (SS), and waste concrete can be targeted for CCS [14][15][16]. Previous studies have demonstrated that SS has exceptional CO 2 capture ...
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For existing coal-fired power plants, current methods of utilizing ash and slag waste may be considered in addressing new environmental and economic risks. However, for new power sources, environmental considerations are much more important in selecting the coal-combustion technology. Technology based on a circulating fluidized …
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Fly ash, ground granulated blast-furnace slag, silica fume, and natural pozzolans, such as calcined shale, calcined clay or metakaolin, are materials that, when used in conjunc-tion with portland or blended cement, contribute to the properties of the hardened concrete through hydraulic or pozzolanic activity or both (Fig. 3-1).
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Bulk utilization of steel slag–fly ash composite: a sustainable alternative for use as road construction materials. Hrushikesh N. Kedar1,2 · Satyajit Patel1 · Sandesh S. Shirol1. …
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Low-calcium (FA) and high-calcium (HCFA) fly ash and granulated blast furnace slag (GBFS) are the most widely known, standardized and used SCMs in the …
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Consoli (1997) reported that CBR and unconfined compressive strength of steel plant slags can be increased from 100 to 235 and 90 kPa to 2120 kPa, respectively, with the addition of 6% fly ash and ...
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Research performed in 2019 by Neeladharan et al. investigated the possibility of stabilizing expansive soils through the use of a binder comprising of fly ash and ground granulated blast furnace slag (GGBFS).The clayey soil was mixed with different percentages fly ash of 5–25% and GGBFS of 2.5–10% by dry weight of soil. According …
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10.5703/1288284315188. Abstract. In Indiana, the steelmaking industries and power plants generate large quantities of steel slag, blast furnace slag and fly ash every year. The …
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The main objective of this paper is to investigate the effect of the joint activation of fly ash, a by-product of thermal power plants, and ground granulated blast-furnace slag, a by-product of ...
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The treatments of fly ash added at 20-40 g•kg-1 and steel slag at 3-6 g•kg-1 had the pH values within 5.5-7.0, and the Superscript textneutral and weakly acidic soil environment was suitable ...
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In this study, nine concrete mixes were produced using raw materials that include 53 grade ordinary Portland cement (OPC), siliceous fly ash (FA) sourced from an anthracite coal-based Indian thermal power plant (Chennai city), potable water, polycarboxylate ether (PCE)-based superplasticizer (SP), slag sand (SS) and crushed …
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Results show that fly ash (164 kg CO 2 eq, 54% reduction) and GGBS (141 kg CO 2 eq, 61% reduction) reduce the global warming potential of pure-cement concrete …
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steel slag fly ash process plant. Fly Ash,Slag,Silica Fume,and Natural Pozzolans,Chapter 3. 311 provides test methods for fly ash and natural pozzolans for use as supplementary ce
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The aim of this project was to develop a basic oxygen furnace slag (BOFS) and fly ash (FA) based geopolymer. The developed geopolymer were required to have strength to withstand hydraulic load. In ...
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This study explores the utilization of steel slag and fly ash in road construction to address the increasing demand for pavement materials and the scarcity of natural aggregates. For this purpose, steel slag–fly ash composite is stabilized with lime and ground granulated blast furnace slag (GGBS) to assess their utility as a subbase …
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study used Class F fly ash in its laboratory HVFA concrete testing. One pressurised double-tee girder [35] was made from Class C fly ash. Electric Arc Furnace (EAF) slag can be reused as aggregate in Portland cement concrete mixes. EAFS and other waste co-products (fly ash, blast furnace slag) will change the binding properties of such concretes
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Green and low-carbon materialization for dredged sediment (DS) is limited due to its low pozzolanic activity. In this study, a novel DS-based non-sintered lightweight aggregate (LWA) is developed by steel slag (SS) and fly ash (FA) activation. Process optimization is performed by the response surfaces, and the basic properties and …
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To adding the steel slag – fly ash in the permeability is decreased the voids are percent in the soil. The increasing the percentage of steel slag in the mixture is reduce the soil – fly ash air voids. To increasing the steel slag the coefficient of permeability is reduced. From the economic analysis it is found that, a substantial save in ...
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The WLT indicates the potential for contaminant release from fly ash or mixtures, but does not evaluate how a fly ash or fly ash mixture will impact groundwater (Bin-Shafique et al., 2002). Leaching of heavy metals from the dumped fly ash and steel slag may have negative impact on the environment should be reduced by leaching …
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with Steel Slag–Fly Ash–Lime Mix in the Base Layer R. R. Pai, A.M.ASCE1; ... annual fly ash generation of thermal power plants in India was re-ported to be 196 million tons (CEA 2018). ...
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In this study, slag-fly ash-based geopolymer concretes reinforced with three different fiber types (Polypropylene (PP), steel (ST), and polyamide (PA)) were …
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The fly ash produced in the steelmaking process replaces iron ore by processing into briquette to reduce the consumption of iron ore in the converter blowing process, thereby realizing the recycling of the by …
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The stability of steel-slag road materials remains a critical issue in their utilization as an aggregate base course. In this pursuit, the present study was envisaged to investigate the effects of fly ash on the mechanical properties and expansion behavior of cement-fly-ash-stabilized steel slag. Strength tests and expansion tests of the cement …
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Abstract. To address the geological hazard posed by unstable loess slopes prone to collapse and landslides, a high-strength geopolymer cementing material was …
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mixtures except fly ash-GBS mixtures with 3% GBS content. With addition of fly ash, CBR value increases and then became constant for 3 % GBS content fly ash-GBS mixtures. From the fig 5 and 6 it is conferred that soaked CBR value of raw soil increased from 2.05 % to its maximum value of 8.29 % with addition of 3% fly ash and 6% GBS.
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The results show that the compressive strength and permeability coefficient of permeable bricks can reach a good level when the composite ratio of steel slag is 6%, fly ash is 30%, and the design ...
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As the fly ash content is increased, the setting time of concrete is seen retarding relatively. On replacing steel slag by 10, 20 and 30% of the weight of fine aggregate, the optimum percentage of steel slag is found by maintaining fly ash percentage as 20%. When sand is replaced with 10% steel slag, the compressive …
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sbm steel plant slag amp fly ash projectEOI VIZAG STEEL EOI Invitation of Expression of Interest for Long term Supply of BF Slag AND OR Fly Ash Document No VSP BP 12 ...
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