effect of slag on pumpability concrete

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  • Georgia Chapter ACI Luncheon Benefits of Slag Cement In

    Specifications For Slag Cement ASTM C989 & AASTHO M 302 ASTM C595 & AASHTO M 240 DOT specifications Slag Cement's Effect On Concrete Typical replacement values Effects on compressive strength Reducing permeability Sulfate attack Mitigation Slag Cement and Environmental Initiatives LEED v.4 Industry Average EPD LCA of Concrete Mixtures

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  • Differences between fly ash, slag and silica fume - Low

    Supplementary Cementitious Materials (SCM) are added to concrete mixtures for various reasons including improving durability, decreasing permeability, aiding in pumpability and finishability, mitigating alkali reactivity and improving the overall hardened properties of concrete through hydraulic or pozzolanic activity or both. SCM are added to concrete in addition to or as a partial

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  • EFFECTS OF FINENESS AND CONTENT OF PHOSPHORUS SLAG …

    The utilization of phosphorus slag (PHS) to replace the fly ash in the construction of hydraulic projects has attracted a growing attention in China. In this study, the influence of PHS fineness and content on cement hydration, mechanical strength, permeability as well as the pore structure and fractal dimension (D s) of concrete have been

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  • 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 silica fume on durability of alkali

    The effect of substitution the slag with silica fume on compressive strength and permeability of alkali activated slag concrete has been examined and analyzed in this study. The use of alkali activated slag concrete is one of the strategies for production of environmentally friendly concrete which is produced through activation of adhesion

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  • Chapter 3 - Fly Ash in Portland Cement Concrete - Fly Ash

    Jun 27, 2017 · This same effect also improves concrete pumpability by reducing frictional losses during the pumping process and flat work finishability. Figure 3-1: Fly ash improves workability for pavement concrete. Decreased water demand. The replacement of cement by …

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  • What are the Factors Affecting Concrete Pumpability?

    Aug 02, 2021 · The pumpability of concrete is influenced by several factors like cementitious materials, aggregate characteristics, admixtures, and batching and mixing of concrete constituents. Various cementitious materials such as fly ash and silica fumes have a positive effect on pumped concrete. Therefore, the maximum aggregate size should not exceed one

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  • Concrete Mixing Machine Twin Shaft Force Blender Concrete

    js1000 twin shaft clay cement mixer. js cement mixer is twin shaft horizontal forced type ; the mixer discharges three cube meters materials every time also known as the three cube concrete mixer in sri lanka. the clay mixing machine can mix dry hard concrete plastic concrete flowing concrete light weight aggregate concrete and various mortar.

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  • The Effect of Steel Slag Coarse Aggregate on the

    This work performs experimental investigations on concrete made with difference replacement percentage of first-class burnt clay brick aggregate (0, 10, 20, 30, 40, 50, 60, 80, and ) by steel slag (SS) aggregate. The aim is to evaluate the mechanical properties as well as durability performances, additionally, water absorption porosity test is performed to investigate the influence of

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  • Fine And Ultrafine Materials For Concrete Durability

    Summary of effects of micro fine SCMs, except rice husk ash is explained in Table 4. Comparative Performance of Micro Silica and Ultrafine Slag in Concrete (Study conducted at IIT Madras and elsewhere) A comparative study on slump and strength development of M60 grade of concrete containing densified micro silica and ultrafine slag was done.

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  • Factors affecting durability of concrete • Aggregate

    Jan 27, 2010 · Effects of Substances on Concrete and Guide to Protective Treatments discusses the effects of hundreds of chemicals on concrete and provides a list of treatments to help control chemical attack. Resistance to Sulfate Attack: Excessive amounts of sulfates in soil or water can attack and destroy a concrete that is not properly designed.

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  • Experimental study on self-compacting concrete SCC using

    plasticiser greatly improves pumpability and the - slump value can be greatly increased. The use of ground granulated blast furnace slag as a partial replacement for Portland cement, it would provide • To study of effect of replacement of cement with Fly Ash and GGBS in concrete. bined

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  • Effect of Blast Furnace Slag Powder and Fly Ash on

    Jul 24th, 12:00 AM Jul 26th, 12:00 AM. Effect of Blast Furnace Slag Powder and Fly Ash on Durability of Concrete Mixed with Seawater. According to the report of the United Nations, it is said that two-third of world population would be influenced by water shortage before 2050.

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  • Effect of fly ash and slag on concrete: Properties and

    Mar 02, 2019 · 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 enhancement effect of Ca-bentonite on the working

    Grouting materials, unlike mortar or concrete, which is a cement paste with a high water–cement ratio, must have high fluidity, pumpability, high compressive strength, Effect of slag on the mechanical properties and bond strength of fly ash-based engineered geopolymer composites.

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  • LEHIGH SLAG CEMENT PRODUCT DATA SHEET

    LEHIGH SLAG CEMENT PRODUCT DESCRIPTION Lehigh Slag Cement conforms to ASTM C989/AASHTO M 302 standard specifications for "Slag Cement as a Constituent in Concrete and Mortars" and CSA A3001 "Cementitious Material for Use in Concrete." Slag has cementitious properties similar to portland cement.

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  • Effects of Ground Granulated Blast Furnace Slag in

    Concrete with air-cooled blast-furnace slag indicated higher pumping pressure than that with crushed stone due to pressure absorption, while no significant change was found for granulated blast-furnace slag concrete.

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  • Effects of High-Volume Ground Slag Powder on the

    Massive high-strength concrete structures tend to have a high risk of cracking. Ground slag powder (GSP), a sustainable and green industrial waste, is suitable for high-strength concrete. We carried out an experimental study of the effects of GSP with a specific surface area of 659 m2/kg on the hydration, pore structure, compressive strength and chloride ion penetrability resistance of high

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  • Slag cement with fly ash - Slag Cement Association

    Fly Ash, Slag, Silica Fume, and Natural Pozzolans, Chapter 3

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  • Effects of High-Volume Ground Slag Powder on the

    Massive high-strength concrete structures tend to have a high risk of cracking. Ground slag powder (GSP), a sustainable and green industrial waste, is suitable for high-strength concrete. We carried out an experimental study of the effects of GSP with a specific surface area of 659 m2/kg on the hydration, pore structure, compressive strength and chloride ion penetrability resistance of high

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