
How to increase the strength of water slag

Review Use of steel slag as sustainable construction materials: A
2021年10月1日 Three methods have been widely employed to improve the reactivity of steel slag and concurrently reduce its potential harm on cementbased host materials: (i) physical 2018年10月30日 Blending with a reactive slag extends the hydration time, resulting in a gradual increase in strength Slag effect factor shows how the presence of slag in the blend affects the The influence of slag properties, mix parameters and curing 2023年9月22日 Results showed the highest increase in compressive strength, flexure strength and high resistance to acid attack in concrete with 20% LSA replacement Further, to optimize Investigating the mechanical strength, durability and micro 2024年5月30日 To improve the strength and stiffness of the concrete mixed with the steel slag, the substitution of natural aggregate can provide a sustainable solution to the environment and Sustainable use of steel slag as coarse aggregate and its Springer

Enhancement of impact resistance of alkali‐activated
2024年2月27日 As a solution, both Zhang 6 and Rashad 7 proposed to increase the slag fineness Rashad et al 7 reported an increment in 3day and 28day compressive strength by 1374% and 517%, respectively, when the slag 2024年9月20日 This literature review found that steel slag increases the fluidity of cementbased materials, with a setting time approximately 210% to 300% longer than that of Portland cement Influence of Steel Slag on Properties of CementBased Materials2024年2月26日 However, the intrinsic slow hydration kinetics of steel slag–GBFS cementitious material (SGM) when exposed to a pure water environment result in prolonged setting times and diminished earlyage Feasibility of Preparing Steel Slagndash;Ground 1 天前 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 discarded shield residue improved by

Utilization of copper slag as fine sand replacement in concrete: a
2024年11月26日 This paper studies the feasibility of copper slag in the concrete and promote the utilization of copper slag in the building construction materials Also, it optimizes the 2019年11月1日 The first use of alkalis as a component of cementitious materials dates back to 1930 The most common alkali materials applied in the alkali activated cements are sodium hydroxide and sodium silicate [8]The most important characteristics of the alkaliactivated slag cements include good resistance against sulfation [9], improved abrasion resistance [10], The effect of the blaine fineness on the mechanical properties of 2023年9月22日 The use of ladle slag as a replacement for natural aggregates as coarse aggregate in concrete has gained attention in recent years due to its potential benefits in terms of sustainability and waste reduction The paper aims to investigate the influence of ladle slag as a coarse aggregate replacement on various properties of concrete, including strength, durability, Investigating the mechanical strength, durability and micro 2015年3月18日 In addition, with the increase in the slag replacement ratio, the reactivity of slag will decrease and the age corresponding to the crossover of the compressive strength will be postponed; Third, as shown in Figure 5 a,c,e, given certain watertobinder ratios, with the increase in slag content, the Xaxis intercept of the strength development function increases Analysis of the Optimum Usage of Slag for the Compressive Strength

Use of nanosilica to increase early strength and reduce setting
2012年5月1日 Compressive strength of the slag mortars were increased with the increase in NS dosages from 05% to 20% by mass of cementitious materials at various ages up to 91 days The strengths of the slag mortars were generally increased with the decrease in the particles size of silica inclusions at early age2023年5月24日 When the amount of slag increases, compressive strength in late age of concrete mixtures increases The lateage compressive strength is not improved by adding more slag after an optimum point For slag to be used effectively in the concrete industry, the ideal replacement ratio is a key consideration Compressive strength of various concrete Steel slag's effect on concrete mechanical properties and durability2 High Cement Content The increase in cement content (400 to 600 kg/m 3) is another way of producing high early strength concrete 3 Low Watercementing Materials Ratio The reduction of water to cementing material ratio ranging from 020 to 045 by mass can produce highearlystrength concreteHow to Develop HighEarlyStrength Concrete? [PDF] The 2019年2月13日 Increasing the amount of alkaline solution up to a certain limit, does increase the compressive strength (Nath and Sarker, 2014; Humad et al, 2018) The pore size distribution of the alkaliactivated fly ash/slag systems tended to be finer in comparison with hydrated Portland cement ( Collins and Sanjayan, 2000 ; Lee and Lee, 2013 ; Provis and van Deventer, 2014 )The Effect of Blast Furnace Slag/Fly Ash Ratio on Setting, Strength

233R17: Guide to the Use of Slag Cement in Concrete and Mortar
71—Strength, p 10 72—Modulus of rupture, p 10 73—Modulus of elasticity, p 11 74—Creep and shrinkage, p 11 The use of slag cement as a cementitious material dates back to 1774, when a mortar was made using slag cement in combination with slaked lime (Mather 1957)2020年10月9日 The compressive strength and split tensile strength of all grades of quarry dust concrete tends to reduce by a certain percentage when water cement ratio was increased from 05 to 065 in steps of Effect of WaterCement Ratio on Mix Design and Mechanical Strength 2013年10月1日 Steel slag is a potential mineral admixture for concrete In this paper, the influence of steel slag on the compressive strength, drying shrinkage, permeability to chloride, and carbonation resistance of concrete was investigated under two different conditions: constant W/B and constant 28 days’ compressive strengthThe results show that under the condition of Influence of steel slag on mechanical properties and durability of 2021年10月1日 In aqueous carbonation, an increase in water consumption increased the amount of calcium ions and CO 2 dissolution, and thus enhanced the carbonation degree of steel slag (Veetil and Hitch 2020) Huijgen and Comans (2005) performed aqueous carbonation of EAFS in an autoclave reactor and found that a decrease in the liquidsolid ratio (L/S) (at a ratio Review Use of steel slag as sustainable construction materials: A

The hydration of slag, part 1: reaction models for alkaliactivated slag
2006年11月29日 Typical AAS consists of ground granulated blastfurnace slag (GGBFS) with 35%–55% (in mass) of Na 2 O added, usually as sodium hydroxide (NaOH) or waterglass Increasing the dosage of activators accelerates the strength development and increases the 28d strength of the paste 2015年1月1日 Split tensile strength, the flexural strength increased by 25% by fine aggregate weight in the percentage of steel slag and then decreased considerably in the further replacement of steel slag in Steel slag to improve the high strength of concrete2012年6月7日 Like most of other cement materials, the reactivity of slag is influenced by its surface area Increased surface area leads to better strength development and more water requirement; however, the fineness of slag is limited from practical aspects, such as economic and performance considerations, setting time and shrinkageFactors affecting the reactivity of slag – Cement ScienceThe GGBFS have lesser demand for water and there is a chance of an increase in the setting time of the concrete When the replacement amount of cement by GGBFS increases, At 7 days and beyond, the flexural strength of slag concrete is equal or Properties of Hardened Concrete with Blast Furnace Slag

Analysis of the Optimum Usage of Slag for the Compressive Strength
2015年3月18日 Ground granulated blast furnace slag is widely used as a mineral admixture to replace partial Portland cement in the concrete industry As the amount of slag increases, the lateage compressive strength of concrete mixtures increases However, after an optimum point, any further increase in slag does not improve the lateage compressive strength This optimum 2024年8月30日 The use of geopolymer as a cementitious material for geopolymer concrete (GPC) is beneficial for the sustainable development and green transformation of the construction industry Geopolymer concrete has many advantages, such as high strength, heat and corrosion resistance, low hydration heat, and carbon emissions This paper adopted the water–binder The Influence of Fly Ash and Slag on the Mechanical Properties of 2022年4月4日 Without enough reactive Al, the reaction products could be unstable when exposed to moisture, even though the strength development is acceptable Besides, a high content of loss on ignition (LOI) could lead to high water demand and low strength of FA Because it increases the content of carbon and reduces the pozzolanic activityA review: Reaction mechanism and strength of slag and fly ash 2020年9月24日 Shan et al used the principle that steel slag and blast furnace slag can activate each other to promote hydration and added a 25% steel slag and 25% blast furnace powder as an admixture to increase the strength of the cement, with results showing that the 28 day bending strength and compressive strength of cement was 212 MPa and 550 MPa, respectively, Sustainable Utilization of Steel Slag from Traditional Industry and

Effects of slag and alkaline solution contents on bonding strength
2023年11月24日 In addition, the crack growth rate of GCC specimens increases as the slag content increases, indicating that the addition of slag increases the brittleness of geopolymer (4) Geopolymer concrete with 500 % slag content and 07 alkaline solutionbinder ratio shows the highest bond strength2021年2月11日 Alkali activated materials are gaining the researchers attention in replacement for cement in traditional concrete One ton of CO2 is liberated into the atmosphere to produce 1 ton of cement Therefore, cement replacement with alkali activated materials in the construction industry decreases the pollution in two ways: reducing CO2 emissions in the atmosphere by Setting Time, Workability and Strength Properties of Alkali 2024年6月12日 Generally, increasing the CaO content (HF level) would increase or reduce the compressive strength, at low replacement ratios (Low HF) CaO boosts the slag dissolution degree and improves the Effect of binder and activator composition on the Nature2023年1月1日 The strength of a structural concrete is fundamentally a function of the strength of its cement paste that has hardened up This in turn has to do with the test method, age of testing the element and its porosity, for a given quantity of cement, and it is a hyperbolic role of watertocement ratio [1]The watercement ratio (w/c) has a significant impact on most hardened Effects of watercement ratio on bond strength of concrete

Strength development characteristics of concrete produced with
and does not contribute to the strength of concrete When slag is used as part of the cementitious constituent in concrete, it reacts with water and Ca(OH) 2 to form more CSH gel and increases the strength [21] Compressive strength of concrete mixtures containing GGBS is increased as the level of GGBS is increased but2021年11月25日 The increase in compressive strength with increasing slag content is attributed to the physical and chemical properties of the slag, The results showed that in specimens cured for seven days at 60 °C, the compressive strength increased slightly with water content and then declined According to the authors, this Factors Affecting the Compressive Strength of Geopolymers: A 2024年7月6日 ABSTRACT To explore the effect of polycarboxylate superplasticizers on the strength and hydration performance of alkali slag building materials, this study prepared crosslinked polycarboxylate superplasticizers with different ratios of hydrogen peroxide, methyl allyl alcohol polyoxyethylene ether, acrylic acid, polyethylene glycol diacrylate, monomer aqueous The effect of polycarboxylate superplasticizer on the strength and Slag, being a substitute for pure cement has similar aspects of durability and strength but is certainly not the same Research by ElTawil et al (2018) shows that mixes with partial replacement of slag results in lower strength in early stages but increased strength at a later age “This is in accordanceGranulated Blast Furnace Slag and its Effects on Concrete Mixes

Basic Oxygen Steelmaking Slag: Formation, Reaction, and Energy
Basic oxygen steelmaking (BOS) slag, a product of hot metal element (eg, Si, Mn, Fe, P) oxidation and flux (eg lime, dolomite) dissolution, plays a critical role in the production of highquality crude steel, although its behavior inside the BOS vessel (formation and reaction with metal droplets and gas) is still not clear and its recycling has always been challenging2022年7月18日 mechanical strength of concrete with GGBS has shown an increase, to a certain degree; however, the flowability of concrete has been reduced In addition, the durability of concrete containing GGBSA Comprehensive Review on the Ground Granulated Blast Furnace Slag 2023年2月8日 Even if a small amount of slag is left behind, it is not certain that it will burn off when you weld over it Also, it would help to clean all the mill scale, rust, paint, or other impurities next to the joint The heat pulls them inside the puddle, and they increase slag inclusions or Welding Slag Inclusions: How to Prevent and Remove Them2019年11月1日 The first use of alkalis as a component of cementitious materials dates back to 1930 The most common alkali materials applied in the alkali activated cements are sodium hydroxide and sodium silicate [8]The most important characteristics of the alkaliactivated slag cements include good resistance against sulfation [9], improved abrasion resistance [10], The effect of the blaine fineness on the mechanical properties of

Investigating the mechanical strength, durability and micro
2023年9月22日 The use of ladle slag as a replacement for natural aggregates as coarse aggregate in concrete has gained attention in recent years due to its potential benefits in terms of sustainability and waste reduction The paper aims to investigate the influence of ladle slag as a coarse aggregate replacement on various properties of concrete, including strength, durability, 2015年3月18日 In addition, with the increase in the slag replacement ratio, the reactivity of slag will decrease and the age corresponding to the crossover of the compressive strength will be postponed; Third, as shown in Figure 5 a,c,e, given certain watertobinder ratios, with the increase in slag content, the Xaxis intercept of the strength development function increases Analysis of the Optimum Usage of Slag for the Compressive Strength 2012年5月1日 Compressive strength of the slag mortars were increased with the increase in NS dosages from 05% to 20% by mass of cementitious materials at various ages up to 91 days The strengths of the slag mortars were generally increased with the decrease in the particles size of silica inclusions at early ageUse of nanosilica to increase early strength and reduce setting 2023年5月24日 When the amount of slag increases, compressive strength in late age of concrete mixtures increases The lateage compressive strength is not improved by adding more slag after an optimum point For slag to be used effectively in the concrete industry, the ideal replacement ratio is a key consideration Compressive strength of various concrete Steel slag's effect on concrete mechanical properties and durability

How to Develop HighEarlyStrength Concrete? [PDF] The
2 High Cement Content The increase in cement content (400 to 600 kg/m 3) is another way of producing high early strength concrete 3 Low Watercementing Materials Ratio The reduction of water to cementing material ratio ranging from 020 to 045 by mass can produce highearlystrength concrete2019年2月13日 Increasing the amount of alkaline solution up to a certain limit, does increase the compressive strength (Nath and Sarker, 2014; Humad et al, 2018) The pore size distribution of the alkaliactivated fly ash/slag systems tended to be finer in comparison with hydrated Portland cement ( Collins and Sanjayan, 2000 ; Lee and Lee, 2013 ; Provis and van Deventer, 2014 )The Effect of Blast Furnace Slag/Fly Ash Ratio on Setting, Strength 71—Strength, p 10 72—Modulus of rupture, p 10 73—Modulus of elasticity, p 11 74—Creep and shrinkage, p 11 The use of slag cement as a cementitious material dates back to 1774, when a mortar was made using slag cement in combination with slaked lime (Mather 1957)233R17: Guide to the Use of Slag Cement in Concrete and Mortar2020年10月9日 The compressive strength and split tensile strength of all grades of quarry dust concrete tends to reduce by a certain percentage when water cement ratio was increased from 05 to 065 in steps of Effect of WaterCement Ratio on Mix Design and Mechanical Strength

Influence of steel slag on mechanical properties and durability of
2013年10月1日 Steel slag is a potential mineral admixture for concrete In this paper, the influence of steel slag on the compressive strength, drying shrinkage, permeability to chloride, and carbonation resistance of concrete was investigated under two different conditions: constant W/B and constant 28 days’ compressive strengthThe results show that under the condition of