Lime activated slag active lime activated slag active lime activated slag activity

Characterization of slagbased mix activated with hydrated lime of

2024年4月6日  Addressing this limitation, using industrial grade hydrated lime as a solid activator to activate ground granulated blast furnace slag (GGBFS) with silica fume (SF) as an additive 2011年5月1日  Cement and lime activated slag were used for treatment of a mixed contaminated soil The performance of the treated soil was assessed by mechanical and leaching tests Mechanical and leaching behaviour of slagcement and lime 2015年10月1日  This study investigates the use of a ground slag, and a highlime fly ash, rich in free lime and sulfates, to activate each other and render mortars which don't incorporate any PortlandStrength characteristics of limeactivated slag cement2015年9月1日  This paper reports on the strength and hydration products of slag cement prepared by activating ground granulated blastfurnace slag with lime and plaster of Paris Strength characteristics of limeactivated slag cement Advances

Effects of Curing Temperature on Strength of LimeActivated Slag

2017年3月17日  This paper outlines the effects of curing conditions on the strength and hydration products of limeactivated slag cement The slag cement was prepared by activating the 2016年1月1日  In this paper, we investigated the effects of four additives (sodium hydroxide, sodium sulfate, sodium carbonate, and gypsum) on the hydration of Ca (OH) 2 activated Influence of four additional activators on hydratedlime [Ca(OH)2 2024年6月18日  Affected by the high temperature, limeactivated fly ashslag solidified sludge could significantly improve the middle and late strength of the sample The research showed Research on strength and microscopic characteristics of lime Under the combined influence of high temperature and water medium, lime effectively stimulated the potential active components between fly ash and slag, breaking the AlO bond and SiO Research on strength and microscopic characteristics of lime

Strength Enhancement Mechanism of Slaked Lime on OnePart

2024年8月20日  The slaked lime admixture can effectively promote the internal Si and Al dissolution and condensation of slag, improve the rate of hydration reaction, and promote the To utilize alkaliactivated materials widely, this study investigates the effects of an intensified pozzolanic reaction and pore filling by silica fume on various material properties of limeactivated slag mortar Although groundgranulated blast Enhancement of Material Properties of LimeActivated 1998年6月1日  Soil stabilization with cement or lime is a well established technique for use in highway or foundation construction Extensive laboratory investigations and a fullscale trial have been carried out to evaluate the performance of ground granulated blast furnace slag (ggbs) in combination with lime, for stabilizing soils This paper reports the results of laboratory tests for Soil Stabilization using LimeActivated Ground Semantic Scholar2024年4月27日  This paper was conducted to upcycle limeneutralize etching wastewater (LNW), produced from the etching of cenospheres for producing perforated cenospheres (PCs), into alkaliactivated slag / fly (PDF) Effect of Lime Neutralization Wastewater on the

Low carbon cementitious composites: Calcined quarry dust modified lime

2021年5月3日  However, the strength of CaOactivated slag and the 1% Na 2 SO 4modified composites was found to be comparable after prolonged curing [15] Thus, the effects of Na 2 SO 4 on the strength development were more pronounced in the early ages The properties of calcined quarry dust (CD)activated slag were also explored in our previous study [19]2024年8月20日  The slaked lime admixture can effectively promote the internal Si and Al dissolution and condensation of slag, improve the rate of hydration reaction, and promote the generation of hydration gel C─ (A)─ S─ H, so that the alkaliactivated slag matrix is denser and the strength is improvedStrength Enhancement Mechanism of Slaked Lime on OnePart activated by cement and lime for S/S treatment of a mixed contaminated soil A sandy soil spiked with 3,000 mg/kg each of a cocktail of heavy metals (Cd, Ni, Zn, Cu and Pb) and 10,000 mg/kg of diesel was treated with binder blends of one part hydrated lime to four parts GGBS (limeslag), and one part cement to nine parts GGBS (slagcement)Mechanical and leaching behaviour of slagcement and lime activated 2018年8月1日  The present study aimed to determine the rheological behavior of activated phosphorus slag (AAPS) with a combination of Ca(OH)2 and Na2CO3 (CNC activator) or Na2SO4 (CNS activator) compared to OPC Rheology of activated phosphorus slag with lime and alkaline

Mix proportions of the limeactivated slag mortars (by weight

Download Table Mix proportions of the limeactivated slag mortars (by weight ratio of cementing materials) from publication: Enhancement of Material Properties of LimeActivated Slag Mortar 2018年11月1日  In the literature, very few investigations on alkaliactivated cement rheology can be detected Primary researches on the rheological behavior of alkaliactivated cements were conducted on alkaliactivated fly ash and sodium carbonateactivated slag pastes [8, 9]Rheological behavior of alkaliactivated fly ash showed Bingham type behavior same as Rheology of activated phosphorus slag with lime and alkaline 2023年10月26日  Activated ground granulated blastfurnace slag (GGBS) has been considered an effective solution for stabilizing PG in road construction However, the mechanical properties of PG stabilized by limeactivated GGBS are not understood This study attempted to mix PG and soil to make a PGsoil, and limeactivated GGBS was used as a treatment agentMechanical properties of phosphogypsumsoil stabilized by lime 2024年6月18日  To explore the reaction mechanism of sludge, slag, lime, and fly ash in high temperature environments, the unconfined compressive strength (UCS) test was hereby implemented to study the effect on curing age, curing temperature, slag content and fly ash content about the strength of sludge Scanning electron microscopy (SEM) was used to Research on strength and microscopic characteristics of limeactivated

Mechanical properties, drying and autogenous shrinkage of blast furnace

2010年4月1日  This article reports the characteristics of blast furnace slag (BFS) pastes activated with hydrated lime (5%) and hydrated lime (2%) plus gypsum (6%) in relation to compressive strength, shrinkage 2024年1月26日  The massive accumulation of iron ore tailing (IOT) results in land resource wastage and increases the possibility of environmental pollutionIn this study, the feasibility of using lowcarbon alkaliactivated ground granulated blastfurnace slag (lime/Carbide slag (CS)GGBS) and coal fly ash (CFA) instead of portland cement (PC) for solidifying IOT was Stabilization of iron ore tailing with lowcarbon lime/carbide slag 2016年1月1日  Most of the previous studies on alkaliactivated slag concluded that newly formed Q 1 and Q 2 peaks were attributed to the silicate chains in C–S–H [17], [19], [20], [39], [47]; however, the situation during this study might be different because (1) this study used Ca(OH) 2 as a major activator and (2) when the GGBFS was activated with Nabased activators (eg, Influence of four additional activators on hydratedlime 2014年9月12日  This study addresses the use of an industry byproduct, carbide slag (CS), to activate another industry byproduct, ground granulated blastfurnace slag (GGBS), for soft clay stabilization in comparison to Portland cement (PC) The properties of CS–GGBS stabilized clays were investigated through unconfined compressive strength (UCS) test, mercury intrusion Carbide slag–activated ground granulated blastfurnace slag for

Mechanical and Microstructure Behavior of Expansive Soil

2024年8月9日  Swelling soil deposits present significant environmental hazards, including space occupation, erosion and mudflows Granulated blast furnace slag (GBFS) has been effective in improving their mechanical and physical properties However, limited attention has been given to the use of GBFS as a granular aggregate despite its cost and energy advantages This study 2016年1月31日  The influences of four supplementary activators were investigated on Ca(OH)2activated slag system The additives significantly affected the (1) early strengths, (2) reaction degrees of slag, (3 Influence of four additional activators on hydratedlime on the strength and hydration products of limeactivated slag cement Silica fume has generally been used as an admixture in slagbased alkaliactivated systems It has been found that silica fume activator (SFA), a product prepared from silica fume and a water solution of alkali compounds, is more active than sodiumInfluence of mineral admixtures on strength and hydration 2015年9月1日  Strength characteristics of limeactivated slag cement @article{Murmu2015StrengthCO, title={Strength characteristics of limeactivated slag cement}, author={Meena Murmu and Suresh Prasad Singh}, journal={Advances in Cement Research}, year={2015}, volume={27}, pages= {268277 Strength characteristics of limeactivated slag cement

Effects of Curing Temperature on Strength of LimeActivated Slag

2017年3月17日  This paper outlines the effects of curing conditions on the strength and hydration products of limeactivated slag cement The slag cement was prepared by activating the ground granulated blast furnace slag with lime and plaster of Paris The curing of mortar specimens was done at temperatures of 27°, 45°, 60°, 75 °C and the compressive strength of specimens were 2014年3月7日  Naceri et al activated the slag cement by hydrated lime with 0, 2, 4, 6, 8 and 10 % (by addition and substitution method) and observed a decline of setting time with increase of lime content Bijen and Niel ( 1981 ) and Dutta Hydration Products, Morphology and Microstructure of silt soil cured by limeactivated y ashGGBS under dierent curing temperatures erefore, it is of great signicance to systematically study the inuence mechanism of curing temperature on lime Strength and microstructural properties of silt soil cured by lime 2021年6月28日  The precursor material in AAS cement is a ground granulated blast furnace slag (GGBFS) The density and specific surface area of GGBFS are 287 g/cm 3 and 432 m 2 /kg respectively The main chemical composition is shown in Table 1The basicity coefficient (M= (CaO + MgO) / (SiO 2 + Al 2 O 3)) is 105According to the State Standard of China (GB/T Influence of hydrated lime on mechanical and shrinkage

Microstructural and mechanical properties of marine soft clay

2015年1月1日  Another application of limeactivated GGBS is for Lower Oxford Clay stabilization in the production of unfired bricks (Oti et al, 2008a, Oti et al, 2008b, Oti et al, 2009a, Oti et al, 2009b, Oti et al, 2009c, Oti et al, 2010a, Oti et al, 2010b, Kinuthia and Oti, 2012)Their results have demonstrated that the limeGGBS could achieve greater strength than PCGGBS or PC 2018年11月20日  To utilize alkaliactivated materials widely, this study investigates the effects of an intensified pozzolanic reaction and pore filling by silica fume on various material properties of lime Enhancement of Material Properties of LimeActivated Slag 2016年8月10日  21 Materials Five types of cementitious powders were used in this study, including a type I ordinary Portland cement (ASTM C150), a grade 100 (ASTM C989) ground granulated blastfurnace slag, a class F fly ash (ASTM C618), recycled sodalime glass powder (GP) and reagent calcium hydroxide powder (Ca(OH) 2 or CH) Slag is an angular shaped Utilisation of alkali activated glass powder in binary mixtures with 2010年4月1日  Pore size distribution was determined by using a Micromeritics Autopore III 9410 porosimeter under pressures ranging from zero to 414 MPaThe assumed surface tension of the mercury was 0485 N/m at 25 °C (ASTM D 440484)The density of the mercury was 135413 g/ml and the assumed contact angle 130°For the calorimetry tests, samples of paste were Mechanical properties, drying and autogenous shrinkage of blast furnace

Microstructural and mechanical properties of marine soft clay

2014年11月22日  Request PDF Microstructural and mechanical properties of marine soft clay stabilized by limeactivated ground granulated blastfurnace slag Although Portland cement (PC) is widely used for Utilization of lime/carbide slagactivated ground granulated blastfurnace slag for dredged sludge stabilization[J] Marine Georesources Geotechnology, 2021, 39(6): 659–669 Crossref Google Scholar Rock and Soil Mechanics Volume 43 Issue 2, February 2022 Pages 327336 DOI: 1016285/jrsm20215135Physical and mechanical performance of quicklimeactivated 2020年3月23日  Abstract This study investigated the feasibility of using lime (L) and carbide slag (CS) to activate ground granulated blastfurnace slag (GGBS), as a potential substitute to Portland cement (PC) for stabilizing dredged sludge (DS) A series of unconfined compressive strength (UCS), scanning electron microscopy (SEM) and Xray diffraction (XRD) tests were Utilization of lime/carbide slagactivated ground granulated blast perature effect Also, there are few reports that the mixed curing agent of fly ash and slag is activated by lime To this end, the lime excited fly ashslag curing agent and its reaction mechanism as sludge curing agent were studied under high temperature effect, the influence of flyResearch on strength and microscopic characteristics of limeactivated

Mechanical properties and durability of alkaliactivated steel slag

2023年7月2日  Alkaliactivated cement (AAC) is either clinkerless or free, and it is also environmentally friendly due to its low carbon footprint and wide range sources Industrial wastes, like steel slag and blastfurnace slag, usually have latent hydraulic reactivity, and can be used as precursors of AAC Both clinkerless and clinkerfree AAC were prepared from the mixture of Blastfurnace slag; Lime activated slag II I INTRODUCTION Strengthening and stabilisation of weak soils for various infrastructure developments are a common phenomenon The Strength improvement of soft clay with lime activated Ground 2022年9月12日  It has also been used in alkaliactivated materials because of its high Ca content, which is more active than lowcalcium FA [3–18] Compared with lowcalcium FA, although the setting time of alkaliactivated materials prepared by it is greatly reduced, the low strength, especially early strength, is still a major issue limiting its developmentProperties and microstructure of lime kiln dust activated slagfly 2019年7月15日  Here, the hydration of GGBS happens in two parts; firstly, during the reaction with alkali hydroxides, the glassy aluminosilicate surface of GGBS collapses and decays in the presence of (OH) − Activation of slag: Comparative study of cement, lime, Calcium

Utilisation of alkali activated glass powder in binary mixtures with

Alkali activated slag mortars were prepared using Na/Si#1activator,withSiO 2/Na 2Omolarratioof160 (Table 2) Replacement levels of 20–50 % (mass percent)of slagwith GP were evaluated This resulted inliquidtosolid(GP ? slag)volumeratioinanarrow 0 20 40 60 80 100 01 1 10 100 Cumulative vol (%) Particle size (µm) Slag Hydrated lime (CH) Fly 2015年1月1日  Although Portland cement (PC) is widely used for marine soft clay stabilization, there are significant environmental impacts associated with its production Hence, the use of industrial byproducts has been encouraged In this paper, quicklime and hydrated lime were used to activate ground granulated blastfurnace slag (GGBS), a byproduct of the steel industry, for Microstructural and mechanical properties of marine soft clay 2024年1月14日  Sodium sulfate (SS) is a neutral activator SSactivated alkaliactivated slag cement (AASC) has lower shrinkage However, it sets slowly, and the mechanical property develops slowly Slaked lime (SL) is an alkaline substance widely used in industry that can be used as an activator in AASC In this paper, SL was used alone, and SL and SS were mixed Effect of Slaked Lime on the Properties of Sodium SulfateActivated This study investigated the potential of using lime (L) and carbide slag (CS) to activate ground granulated blastfurnace slag (GGBS) for stabilizing dredged sludge (DS) as a substitute for Portland cement (PC) Optimum lime content of 2025% and carbide slag content of 2530% were recommended for achieving the highest UCS in stabilized DSUtilization of lime/carbide slagactivated ground granulated blast

Rheology of activated phosphorus slag with lime and alkaline salts

DOI: 101016/JCEMCONRES201807010 Corpus ID: ; Rheology of activated phosphorus slag with lime and alkaline salts @article{Mehdizadeh2018RheologyOA, title={Rheology of activated phosphorus slag with lime and alkaline salts}, author={Hamid Mehdizadeh and Ebrahim Najafi Kani and Angel Palomo Sanchez and Ana Fern{\'a}ndez

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