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effect of slag on pumpability concrete

effect of slag on pumpability concrete

effect of slag on pumpability concrete - promesa

Effect of Binder Composition on the Structure of Cement . 2017124enspenspEffect of Binder Composition on the Structure of Cement Paste and increases the portion of fines, improves mix pumpability, and reduces dynamics, shrinkage and heat of hydration. Concrete from slag cements with fly ash addition has high strength after 28

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Effect Of Slag On Pumpability Concrete

Concrete from slag cements with fly ash addition has high strength after 28Effect Of Slag On Pumpability Concrete,Concrete 101. expanded shale clay and slag These are used to produce structural How does high cement content effect pumping ie 3000 PSI Fly ash increases the pumpability of concrete by making it more slippery without adding more ...

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Effect Of Slag On Pumpability Concrete In Nigeria

Properties Of Slag Concretes. Figure 15 effect of slag replacement.durability.carbonation.the rate of carbonation of slag cement concrete has been reported to be higher than that of portland cement concrete, especially at high slag replacement values all cases, the rate of carbonation is related directly to the compressive strength of concrete.

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Effect of slag cement on the properties of ultra-high ...

2018-11-30  The use of slag cement in ordinary concrete is accompanied by multiple benefits, such as improved workability and added later-age strength gain, lower permeability and reduced carbon footprint [15]. However, there has been limited research devoted to its effect on UHPC [13], [16], [17], [18].

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Effect of blast-furnace slag as cement replacement on ...

Effect of blast-furnace slag as cement replacement on hydration, microstructure, strength and durability of concrete.

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Effects of steel slag powder on workability and

2014-8-5  The experimental results showed that when steel slag powder was added to concrete, the slumps through the same time were lower. The initial and final setting times were slightly retarded. The dry shrinkages were lower, and the abrasion resistance was better.

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Effect of Steel Slag Powder on the Durability of High ...

dvanced mineral admixtures can lead to economical high performance concrete with enhanced durability and reduced cement content. When super fine steel slag powder is mixed into concrete as active admixture, resistance to abrasion and resistance to chloride penetration are improved as well as workability and mechanical properties of the concrete.

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Effect of Cementitious Blast-Furnace Slag on Chloride ...

The availability of separately ground granulated iron blast-furnace (GGBF) slag, as a separate cementitious material or supplement, has prompted new research on its effects on concrete properties. One area in which GGBF slag has particular promise in concrete is its ability to alter the permeability characteristics of concrete to the extent that its resistance to chloride intrusion is significantly improved.

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The Effect of Alkaline Solution-to-Slag Ratio on ...

2017-6-19  Alkali activated slag concrete is a viable alternative to many typical concretes. Furthermore, the alkali activated slag concrete has higher tensile and compressive strength, higher rate of strength gain, lower porosity and permeability, and higher resistant to chemical agents [21,22,23,24,25,26,27].

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EFFECT OF ULTRA FINE SLAG REPLACEMENT ON

2015-2-9  The total pore volume of concrete also decreases as the slag fineness becomes higher6. Slag of 786 m 2/kg fineness has a 50% smaller diffusion coefficient than a normal OPC 6. This coefficient drops more dramatically as the fineness of the slag is improved. In this work, the effect of UFGGBS replacement on the durability and mechanical ...

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Effect Of Slag On Pumpability Concrete

Concrete from slag cements with fly ash addition has high strength after 28Effect Of Slag On Pumpability Concrete,Concrete 101. expanded shale clay and slag These are used to produce structural How does high cement content effect pumping ie 3000 PSI Fly ash increases the pumpability of concrete by making it more slippery without adding more ...

Get Price

Effect of blast-furnace slag as cement replacement on ...

Sustainability is getting more and more attention during the last years. Also in the concrete and cement industry, attempts are made to minimize the environmental impact. One way to implement this thought, is the use of industrial by-products as cement replacing material. The 'waste' products are upgraded in high-value applications and the need for clinker is reduced.

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Effect of Cementitious Blast-Furnace Slag on Chloride ...

The permeability of concrete containing GGBF slag is less affected by increases in water-cement ratio than concrete containing regular portland cement alone. 3. The detrimental effects of accelerated curing on the permeability of concrete are virtually eliminated with cement blends containing GGBF slag

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Effect of Steel Slag Powder on the Durability of High ...

dvanced mineral admixtures can lead to economical high performance concrete with enhanced durability and reduced cement content. When super fine steel slag powder is mixed into concrete as active admixture, resistance to abrasion and resistance to chloride penetration are improved as well as workability and mechanical properties of the concrete.

Get Price

Effects of Ground Granulated Blast Furnace Slag in ...

2015-12-28  difference in the level of deicer scaling that occurred in slag cement concrete versus OPC concrete (Dubovoy, et al, 1986). Afrani and Rogers (1994), on the other hand, recorded much greater scaling loss for concrete with high slag cement replacement compared to 100% OPC concrete. Also noted was a difference in deicer scaling resistance apparently

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EFFECT OF ULTRA FINE SLAG REPLACEMENT ON

2015-2-9  The total pore volume of concrete also decreases as the slag fineness becomes higher6. Slag of 786 m 2/kg fineness has a 50% smaller diffusion coefficient than a normal OPC 6. This coefficient drops more dramatically as the fineness of the slag is improved. In this work, the effect of UFGGBS replacement on the durability and mechanical ...

Get Price

The Effect of Alkaline Solution-to-Slag Ratio on ...

2017-6-19  This study investigated the effect of alkaline solution-to-slag ratio on permeability of Alkali Activated Slag Concrete (AASC). Permeability of concrete has a direct impact on its durability, so, in this study, a series of tests were arranged to examine the effect of alkaline solution-to-slag ratio on water impermeability, chloride permeability, short-term and total water absorption, and ...

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UNDERSTANDING THE PUMPABILITY OF CONCRETE

2020-10-13  effect of mixture design on pumpability are presented in the paper. The concept of Real Paste Content is brought forward as a tool to help engineers clearly understand the mechanisms taking place during the transport of concrete under pressure. CONCRETE PUMPING The pumpability of concrete is not an easy concept to define and requires the

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Effect of ultra-fine slag on mechanical and permeability ...

Effect of ultra-fine slag on mechanical and permeability properties of Metakaolin-based sustainable geopolymer concrete Parveen 1, Ankur Mehta2a and Saloni1b 1Department of Civil Engineering, DCRUST, Murthal-131039, Sonipat, Haryana, India 2Amity School of Engineering and Technology, Amity University, Sector-125, Noida, U.P, India

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The effect of slag addition on strength development

This paper presents the effect of slag addition on strength development and workability of fly ash/slag based geopolymer (FASLG) concrete cured at normal temperature. Class C fly ash with high ferrite (Fe) content was used as the primary material. The proportions of fly ash (FA) to slag (SL) are: 1 FA : 0 SL, 0.9 FA : 0.1 SL, 0.7 FA : 0.3 SL, and 0.5 FA : 0.5 SL.

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Effects of Ground Granulated Blast Furnace Slag in ...

2015-12-28  difference in the level of deicer scaling that occurred in slag cement concrete versus OPC concrete (Dubovoy, et al, 1986). Afrani and Rogers (1994), on the other hand, recorded much greater scaling loss for concrete with high slag cement replacement compared to 100% OPC concrete. Also noted was a difference in deicer scaling resistance apparently

Get Price

Effect of Ground Granulated Blast Furnace Slag on the ...

This paper opens up how the properties of seashell mix concrete influenced by the effect of ground granulated blast furnace slag (GGBS). This experimental program consists of thirteen concrete mixes. One is conventional concrete amp; other concrete mixes are formed by the partial replacement of fine aggregate with crushed seashell and cement with GGBS. The proportion of crushed seashell was ...

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RESEARCH: The Beneficial Effect of Slag Cement on

The sulfate resistance of PC+slag and PLC+slag concrete mixtures at W/CM ratios of 0.40 and 0.50 is equal to or better than that of traditional highly and moderately sulfate-resistant portland and blended cements (CSA A3001 HS, HSb, MS, and MSb).

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The effect of slag addition on strength development

This paper presents the effect of slag addition on strength development and workability of fly ash/slag based geopolymer (FASLG) concrete cured at normal temperature. Class C fly ash with high ferrite (Fe) content was used as the primary material. The proportions of fly ash (FA) to slag (SL) are: 1 FA : 0 SL, 0.9 FA : 0.1 SL, 0.7 FA : 0.3 SL, and 0.5 FA : 0.5 SL.

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Effect of ultra-fine slag on mechanical and permeability ...

Effect of ultra-fine slag on mechanical and permeability properties of Metakaolin-based sustainable geopolymer concrete Parveen 1, Ankur Mehta2a and Saloni1b 1Department of Civil Engineering, DCRUST, Murthal-131039, Sonipat, Haryana, India 2Amity School of Engineering and Technology, Amity University, Sector-125, Noida, U.P, India

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EFFECTS OF FINENESS AND CONTENT OF

2021-4-19  The incorporation of 20–40 wt.% PHS declines the early strength of concrete, but this reduction effect on strength can be eliminated to some degrees by mechanically grinding the PHS. The compressive strengths of concrete added with PHS with a high fineness of 505 m 2 /kg (abbreviated as PHS-H) are about 16.0–20.6% higher at three days and 8 ...

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EFFECT OF ULTRA FINE SLAG REPLACEMENT ON

2015-2-9  The total pore volume of concrete also decreases as the slag fineness becomes higher6. Slag of 786 m 2/kg fineness has a 50% smaller diffusion coefficient than a normal OPC 6. This coefficient drops more dramatically as the fineness of the slag is improved. In this work, the effect of UFGGBS replacement on the durability and mechanical ...

Get Price

Effect of Slag Cement on Drying Shrinkage of Concrete

The effect of a partial replacement of cement with slag cement on free shrinkage is evaluated for curing periods between 3 and 28 days. Mixtures include concrete containing different replacement levels of slag cement (30, 60, and 80% by volume) cast with limestone, granite, or quartzite coarse aggregate. Comparisons are only made with mixtures having the same paste content (by volume) and ...

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Effect of Ground Granulated Blast Furnace Slag and

2017-1-24  properties of concrete. The selected graphs (Fig. 2 a-d) for the non-air-entrained concrete indicate that the water absorption and permeability values increase with the increasing W/B ratio. The increase in the W/B ratio leads to a lower compressive strength and freeze-thaw resistance. A change in the slag content in concrete has a minor effect on

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Effect of Cement Content on Durability of Fly Ash

2012-4-26  The results show that when the optimal cement content is 150kg/m 3 and the fly ash —carbide slag content is 350kg/m 3, the impermeability, the frost resistance, the erosiveness resistance and the wear resistances of residue concrete are obviously improved, which can meet the pavement surface requirements of rural roads in the Three Gorges ...

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Optimizing Concrete Pavement Mixes with Slag Cement

2015-2-8  Slag cement • Improves pumpability • Improves workability ... reducing the “urban heat island”effect • Slag cement reduces efflorescence by reduced permeability and ... Portland vs. Slag cement concrete WCPA Annual Concrete Pavement Workshop Bruce Blair Presentation February 12, 2015 22 of 41. Concrete Performance: Binary

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Effects of slag addition on bond strength of 3D printed ...

2020-9-24  Finally, for the both the slag percentages, we measured the difference in bond strengths and reported in the following section (Panda et al. 2018). MATERIALS AND METHODS The mix design was aimed to meet the requirement of pumpability during delivery

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Effects of Ground Granulated Blast Furnace Slag in ...

2015-12-28  difference in the level of deicer scaling that occurred in slag cement concrete versus OPC concrete (Dubovoy, et al, 1986). Afrani and Rogers (1994), on the other hand, recorded much greater scaling loss for concrete with high slag cement replacement compared to 100% OPC concrete. Also noted was a difference in deicer scaling resistance apparently

Get Price

Effect of blast furnace slag powder on compressive ...

2016-9-9  10. GGBF slag’s has no negative effect on the corrosion of steel (Fulton 1974; Lea 1971; Hogan and Meusel 1981). It has been found that a slight reduction in the pH of pore solution does not have a negative impact on the passivity of reinforcing steel, and that use of GGBF slag in good quality concrete, reduces concrete per-

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Effect of Ground Granulated Blast Furnace Slag on the ...

This paper opens up how the properties of seashell mix concrete influenced by the effect of ground granulated blast furnace slag (GGBS). This experimental program consists of thirteen concrete mixes. One is conventional concrete other concrete mixes are formed by the partial replacement of fine aggregate with crushed seashell and cement with GGBS.

Get Price

The Effect of Slag and Limestone Filler on Resistivity ...

Concrete was tested for compressive strength, sorptivity, resistivity, and water penetration under pressure. The volume of paste in all concrete mixes was the same. Results showed the effect of slag on concrete transport properties. The effect of limestone filler was minimal either admixed solely or in conjunction with slag.

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The effect of slag addition on strength development

This paper presents the effect of slag addition on strength development and workability of fly ash/slag based geopolymer (FASLG) concrete cured at normal temperature. Class C fly ash with high ferrite (Fe) content was used as the primary material. The proportions of fly ash (FA) to slag (SL) are: 1 FA : 0 SL, 0.9 FA : 0.1 SL, 0.7 FA : 0.3 SL, and 0.5 FA : 0.5 SL.

Get Price

RESEARCH: The Beneficial Effect of Slag Cement on

The sulfate resistance of PC+slag and PLC+slag concrete mixtures at W/CM ratios of 0.40 and 0.50 is equal to or better than that of traditional highly and moderately sulfate-resistant portland and blended cements (CSA A3001 HS, HSb, MS, and MSb).

Get Price

Making Concrete Pumpable Concrete Construction

2020-1-28  Factors that Impact Pumpability A wide array of factors can impact concrete pumpability, Bui notes, such as the dimension, shape, gradation, and volume of aggregates. Supplementary materials like fly ash, silica fume, slag, and limestone also influence the rheology of the mix and therefore its pumpability.

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Effect of Slag Cement on Drying Shrinkage of Concrete

The effect of a partial replacement of cement with slag cement on free shrinkage is evaluated for curing periods between 3 and 28 days. Mixtures include concrete containing different replacement levels of slag cement (30, 60, and 80% by volume) cast with limestone, granite, or quartzite coarse aggregate. Comparisons are only made with mixtures having the same paste content (by volume) and ...

Get Price