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Mechanical properties of discarded shield residue improved by calcium
23 小时之前 To utilize discarded shield residue and alleviate the shortage of subgrade filling, industrial wastes such as calcium carbide slag (CCS) and fly ash (FA) were considered to enhance the mechanical properties of the shield residue A series of laboratory tests, including 2024年1月5日 This study presents an indepth evaluation of calcium carbide residue and coal fly ash as alternative binders The assessment of raw materials emphasized their chemical Evaluation of calcium carbide residue and fly ash as 2023年5月1日 Thus, to lower the carbon footprint of geopolymer by avoiding the utilization of energyintensive commercial alkali activators, a novel ecofriendly geopolymer was Preparation and curing method of red mudcalcium carbide 2023年8月24日 The optimal mixing ratio of FA and calcium carbide slag (CCS) was determined using compaction and unconfined compressive tests The study also examines the relationship Research on the Performance of Calcium Carbide Slag–Fly Ash

Study on mechanical properties and microstructure of flyash
2023年12月15日 The present study explores the efficacy of utilizing fly ash (FA)based geopolymer, activated by calcium carbide residue (CCR) and sodium silicate solution (NS), for 2024年7月1日 In order to reduce carbon emissions and consume a large amount of lowquality solid waste, CFBFARMCS has been developed by utilising the synergistic effect of Optimization of proportions and solidification mechanism of 2016年8月19日 Two waste byproducts, fly ash (FA) and calcium carbide residue (CCR), are used to develop geopolymer binders for stabilizing marginal lateritic soil as a sustainable Marginal Lateritic Soil Stabilized with Calcium Carbide Residue and Fly 2022年5月18日 This study aimed to compare the swelling and strength parameters of weak and swellable soils with calcium carbide residue remaining from acetylene industrial production Stabilization of swelling soil by lime, fly ash, and calcium carbide

Preparation and curing method of red mudcalcium carbide
2023年2月1日 Semantic Scholar extracted view of "Preparation and curing method of red mudcalcium carbide slag synergistically activated fly ashground granulated blast furnace slag 2023年2月1日 Thus, to lower the carbon footprint of geopolymer by avoiding the utilization of energyintensive commercial alkali activators, a novel ecofriendly geopolymer was Preparation and curing method of red mudcalcium carbide 2016年7月1日 For instance, Phetchuay et al [17] reported that a fly ash geopolymer incorporating calcium carbide residue (CCR) can be used to stabilize marine clay, while Mozumder et al [18] demonstrated Strength development in soft marine clay stabilized by fly ash 2023年2月23日 Preparation and curing method of red mudcalcium carbide slag synergistically activated fly ashground granulated blast furnace slag based ecofriendly Cement and Concrete Composites ( IF 108Pub Date : , DOI: 101016/jPreparation and curing method of red mudcalcium carbide

Stabilization of swelling soil by lime, fly ash, and calcium carbide
2022年5月18日 This study aimed to compare the swelling and strength parameters of weak and swellable soils with calcium carbide residue remaining from acetylene industrial production with lime and fly ash For this purpose, bentonite and river sand were mixed as a 75–25% bentonite–sand mixture to obtain the pure test sample Five percent, 10%, and 15% by weight 2024年5月23日 Optimization of proportions and solidification mechanism of allsolid waste cementitious materials based on circulating fluidized bed fly ash, calcium carbide slag, and red mud May 2024 Case Optimization of proportions and solidification mechanism of 2022年4月11日 The surface area of the fly ashcalcium carbide slagbased geopolymer is as high as 7976 m2/g; The composite material has a high removal efficiency of 9763% for heavy metal ions; The Preparation of a novel composite geopolymer based on calcium carbide 2021年8月1日 Request PDF Properties of lightweight alkali activated controlled LowStrength material using calcium carbide residue – Fly ash mixture and containing EPS beads This research aims to use of Properties of lightweight alkali activated controlled Low

Microstructure of Calcium Carbide Residue–Ground Fly Ash
2011年3月1日 Microstructures of calcium carbide residue (CCR) and CCRground fly ash (CCRGFA) pastes were examined A ratio of CCR to GFA of 30 to 70 by weight was used as a binder without portland cement2021年3月15日 Alkaline materials are the most effective activator for fly ash and slag Commonly used activators include alkali or alkaline earth hydroxides, carbonates, sulfates and silicates [6], [7], [8], [9]The activator is usually prepared with commercially available reagentsUsing silica fume for improvement of fly ash/slag based 2023年7月4日 It was found that calcium carbide slag–fly ash can significantly improve the compressive strength of shield muck, and the strength of cured soil increases and then decreases with an increase in Stabilization of Shield Muck Treated with Calcium Carbide Slag–Fly Ash2018年2月20日 The strength development and durability of alkaliactivated fly ash (FA) mortar with calcium carbide residue (CCR) as additive cured at ambient temperature were investigated in this paperStrength development and durability of alkaliactivated fly ash

Strength development and microstructure of sustainable
2022年11月21日 Chandra et al [13] utilized red mud to replace fly ash (up to 30 % by dry weight basis) to prepare geopolymers as a subgrade material, and its strength and leachability were investigated correspondingly The leaching test reveal that the hazardous heavy metals were within the permissible limits2023年8月24日 To address the scarcity of lime resources, this study explores the potential of using industrial solid waste, including fly ash (FA) and carbide slag, as replacements for lime or cement in soil (PDF) Research on the Performance of Calcium The effect of Portland cement (OPC) addition on the properties of high calcium fly ash geopolymer pastes was investigated in the paper OPC partially replaced fly ash (FA) at the dosages of 0, 5%, 10%, and 15% by mass of binderSoil Stabilization by Calcium Carbide Residue and Fly Ash2022年10月24日 A YAE300B compressive testing machine was used to analyze the compressive strength of FA geopolymer mortars with a loading rate of 2400 N/s Improving the compressive strength of mortar from a binder of fly ashcalcium carbide residue Constr Build Mater, 147 (2017), pp 713719 View PDF View article View in Scopus Google Scholar Lowcarbon wetground fly ash geopolymer activated by single calcium

Disposal areas for calcium carbide residue, fly ash, and
This experiment used three types of waste materials: calcium carbide residue, fly ash, and recycled concrete aggregate to develop concrete paving blocks2011年3月1日 However, opposite results on the workability of a calcium carbide residuefly ash concrete were found on calcium chloride [63] The workability (slump) was slightly decreased at 1 and 3% calcium Effects of binder and CaCl2 contents on the strength of calcium carbide 2012年2月1日 Calcium carbide residue (CCR) and fly ash (FA) are both waste products from acetylene gas factories and power plants, respectively The mixture of CCR and FA produces a cementitious material because CCR contains a lot of Ca(OH)2, while FA is a pozzolanic materialSoil Stabilization by Calcium Carbide Residue and Fly Ash2024年2月9日 In this study, based on the carbide slag (CS)red mud (RM)fly ash (FA) ternary binder (CRF) system, another hazardous waste, namely municipal solid waste incineration fly ash (MSWIFA) is introduced through the component optimization design, so that CS and MSWIFA produce a synergistic activation effect, as a result, the CSRMFAMSWIFA Preparation and mix proportion optimization of red mudfly ash

Microstructural Analysis of LowCalcium Fly AshBased
2024年6月25日 Geopolymer concretes have emerged as an alternative to traditional Portland cement concretes with high strength, good durability, well corrosion performance and hightemperature resistance, and being a sustainable and environmentally friendly material In this study, a comprehensive microstructural analysis of lowcalcium fly ashbased geopolymer 2023年11月28日 The findings highlight that the strength of flyash–carbideresiduestabilized soil was higher than that of carbideresiduestabilized soil at the same curing ageInvestigation into the Enhancement Characteristics of Fly Ash 2022年9月26日 The preparation of green cementitious materials is a popular research topic for industrial solid waste resource utilization, which can solve the problem of solid waste storage while partially replacing highconsumption, highemission ordinary Portland cement (OPC) and decreasing carbon emissions [18]FA is an excellent precursor that can provide sufficient silica Characterization and optimization of ecofriendly 2015年1月1日 Investigation of natural/treated expansive soils for CCLs exists in the literature using different materials including fly ash red mud cement, calcium carbide residue, cement kiln dust, quarry (PDF) Evaluation of fly ash calcium carbide

Preparation and curing method of red mudcalcium carbide
2023年5月1日 The commercial alkali activators could account for more than 50% of the cost for producing geopolymersThus, to lower the carbon footprint of geopolymer by avoiding the utilization of energyintensive commercial alkali activators, a novel ecofriendly geopolymer was synthesized from 100% solid wastes comprising red mud (RM), calcium carbide slag (CS), 2022年1月27日 Calcium carbide residue (CCR) is a solid waste resulting from acetylene gas production In this study, CCR was used as an alkali activator to prepare fly ash (FA)based geopolymers without any (PDF) Utilization of Calcium Carbide Residue as Solid Alkali 2016年8月19日 The low calcium fly ash (Class F) was treated with three different alkalis, namely sodium hydroxide (NaOH), potassium hydroxide (KOH), and calcium hydroxide (Ca(OH)2), to study the influence of Marginal Lateritic Soil Stabilized with Calcium Carbide Residue and Fly 2023年2月27日 As the raw material of geopolymer, Fclass fly ash (FFA) often needs strong alkali such as NaOH to stimulate due to its low reactivity In this study, FFA was refined and activated by a wet grinding process, and the activation effect of calcium carbide slag (19 %) and sodium silicate (1 %, 3 % and 5 %) was evaluated when used alone or in combinationPerformances and microstructure of onepart fly ash

(PDF) Evaluation of calcium carbide residue and fly ash as
2024年1月5日 A mixture of calcium carbide residue and coal fly ash with a Ca/(SiO2 + Al2O3) ratio of 15 resulted in the highest compressive strength at long curing periods in both pastes and mortars2021年9月1日 Another industrial waste ie, Calcium Carbide Residue (CCR) which is a byproduct of the acetylene gas manufacturing industry can be used with various cementitious materials like Fly ash (FA Experimental study of the feasibility of using calcium carbide 2022年1月1日 The use of CCR in conjunction with pozzolanic materials provides cementing property [25]The viability of calcium carbide residue has been established and proven to be feasible [1], [10]Akinwumi et al [26] investigated the use of CCR in soil stabilization and concluded that increasing the application of CCR reduced the soil's specific gravity, plasticity Stabilization of tropical soil using calcium carbide residue 2011年3月1日 This paper presents a concrete that utilizes a calcium carbide residue and fly ash mixture as the concrete binder instead of Portland cementThe ground calcium carbide residue (CR) was mixed with classified fly ash (FA) at a ratio of 30:70 (CR:FA) by weight and used as a binder to cast CRFA concrete specimensThe effects of binder content, water to binder (W/B) Effects of binder and CaCl2 contents on the strength of calcium carbide

Strength development in soft marine clay stabilized by fly ash
2016年7月1日 For instance, Phetchuay et al [17] reported that a fly ash geopolymer incorporating calcium carbide residue (CCR) can be used to stabilize marine clay, while Mozumder et al [18] demonstrated 2023年2月23日 Preparation and curing method of red mudcalcium carbide slag synergistically activated fly ashground granulated blast furnace slag based ecofriendly Cement and Concrete Composites ( IF 108Pub Date : , DOI: 101016/jPreparation and curing method of red mudcalcium carbide 2022年5月18日 This study aimed to compare the swelling and strength parameters of weak and swellable soils with calcium carbide residue remaining from acetylene industrial production with lime and fly ash For this purpose, bentonite and river sand were mixed as a 75–25% bentonite–sand mixture to obtain the pure test sample Five percent, 10%, and 15% by weight Stabilization of swelling soil by lime, fly ash, and calcium carbide 2024年5月23日 Optimization of proportions and solidification mechanism of allsolid waste cementitious materials based on circulating fluidized bed fly ash, calcium carbide slag, and red mud May 2024 Case Optimization of proportions and solidification mechanism of

Preparation of a novel composite geopolymer based on calcium carbide
2022年4月11日 The surface area of the fly ashcalcium carbide slagbased geopolymer is as high as 7976 m2/g; The composite material has a high removal efficiency of 9763% for heavy metal ions; The 2011年3月1日 Microstructures of calcium carbide residue (CCR) and CCRground fly ash (CCRGFA) pastes were examined A ratio of CCR to GFA of 30 to 70 by weight was used as a binder without portland cementMicrostructure of Calcium Carbide Residue–Ground Fly Ash 2021年3月15日 Alkaline materials are the most effective activator for fly ash and slag Commonly used activators include alkali or alkaline earth hydroxides, carbonates, sulfates and silicates [6], [7], [8], [9]The activator is usually prepared with commercially available reagentsUsing silica fume for improvement of fly ash/slag based 2023年7月4日 It was found that calcium carbide slag–fly ash can significantly improve the compressive strength of shield muck, and the strength of cured soil increases and then decreases with an increase in Stabilization of Shield Muck Treated with Calcium Carbide Slag–Fly Ash

Strength development and durability of alkaliactivated fly ash
2018年2月20日 The strength development and durability of alkaliactivated fly ash (FA) mortar with calcium carbide residue (CCR) as additive cured at ambient temperature were investigated in this paperFive percent, 10%, and 15% by weight of calcium carbide residue, lime, and fly ash were added to pure sample All test samples were prepared at the optimum water content of each mixture The Stabilization of swelling soil by lime, fly ash, and calcium carbide