Use of ternary cementitious systems containing silica fume and fly ash in concrete

Thomas, M D; Shehata, Medhat; Shashiprakash, S. G.; Hopkins, Donald S.; Cail, Kevin

doi:10.1016/s0008-8846(99)00096-4

Cited by 223 publications

(99 citation statements)

References 8 publications

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“…A study (Thomas et al 1999) also found a blend of fly ash and silica fume with cement (ternary blend) to be very effective for the control of ASR, replacing high concentrations of fly ash or silica fume. The content of SF is expected to consume free lime in a high pH environment, thus controlling the ASR (Fidjestøl and Lewis 2003).…”

Section: Evaluating Performance Of Hsc-3 Upon Hydrationmentioning

confidence: 99%

Hydration Kinetics of a Low Carbon Cementitious Material Produced by Physico-Chemical Activation of High Calcium Fly Ash

Sadique

Al-Nageim

2012

ACT

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The hydration kinetics of a ternary system containing high lime fly ash activated with alkali sulphate rich fly ash has been studied. The effect of low intensive mechanical activation of fly ashes influencing the particle packing and water demand was undertaken. A ternary blend of fly ashes and silica fume was found to show improved bond strength between the binder paste and aggregate rather than the binder paste matrix with progressive hydration after 90 days. Analogous physico-chemical properties of the developed ternary blend with the control cement were revealed. Quick dissolution of K + , Na + and SO 4 2-into the liquid phase as well as consumption of Ca 2+ by silica fume in a high-pH environment were the predominant factors for producing a dense non-expansive hydration product by the ternary blend.

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Section: Evaluating Performance Of Hsc-3 Upon Hydrationmentioning

confidence: 99%

Hydration Kinetics of a Low Carbon Cementitious Material Produced by Physico-Chemical Activation of High Calcium Fly Ash

Sadique

Al-Nageim

2012

ACT

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“…Considerable researches (Radlinski and Olek 2012;Isaia et al 2003;Goyal et al 2008;Hariharan et al 2011;Thomas et al 1999;Bouzoubaâ et al 2002) have been carried out to investigate the effect of replacement of 20 to 30 % of OPC with FA and SF but higher replacement level of OPC in ternary blend cement system is still needed to investigate intensively. The addition of silica fume with fly ash was found to increase the compressive strength of concrete at early age and improve chloride ion permeability, when compared to concrete made with fly ash alone (Mullick 2007;Hariharan et al 2011;Thomas et al 1999). It has been found that there was no significant improvement in concrete containing 8 % SF and 40 % FA in the range of w/b ratio of 0.34-0.4 but it was advantageous for superplasticizer dosage, plastic shrinkage, drying shrinkage and chloride ion permeability (Bouzoubaâ et al 2002;A.and Malhotra 1998).…”

Section: Introductionmentioning

confidence: 99%

Effect of Relative Levels of Mineral Admixtures on Strength of Concrete with Ternary Cement Blend

Mala

Mullick

Jain

et al. 2013

Int J Concr Struct Mater

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In the present scenario to fulfill the demands of sustainable construction, concrete made with multi-blended cement system of OPC and different mineral admixtures, is the judicious choice for the construction industry. Silica fume (SF) and fly ash (FA) are the most commonly used mineral admixtures in ternary blend cement systems. Synergy between the contributions of both on the mechanical properties of the concrete is an important factor. This study reports the effect of replacement of OPC by fly ash (20, 30, 40 and 50 % replacement of OPC) and/or silica fume (7 and 10 %) on the mechanical properties of concrete like compressive strength and split tensile strength, with three different w/b ratio of 0.3, 0.4 and 0.45. The results indicate that, as the total replacement level of OPC in concrete using ternary blend of OPC ? FA ? SF increases, the strength with respect to control mix increases up to certain replacement level and thereafter decreases. If the cement content of control mixes at each w/b ratio is kept constant, then as w/b ratio decreases, higher percentage of OPC can be replaced with FA ? SF to get 28 days strength comparable to the control mix. A new method was proposed to find the efficiency factor of SF and FA individually in ternary blend cement system, based on principle of modified Bolomey's equation for predicting compressive strength of concrete using binary blend cement system. Efficiency factor for SF and FA were always higher in ternary blend cement system than their respective binary blend cement system. Split tensile strength of concrete using binary and ternary cement system were higher than OPC for a given compressive strength level.

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“…[16]. The addition of silica fumes to samples containing fly ash reduced expansion significantly (SF10FA20).…”

Section: Durability and Porositymentioning

confidence: 99%

“…Control mix (C) at all ages was found to have higher strengths than all mixes including fly ash (FA20) and fly ash with SAP (FA20SAP) showed, after 91 days of curing, 44 and 31 MPa, respectively. Fly ash is generally known to decrease strength development at early ages and is typically slower than in conventional Portland cement content, because the early age bonding of fly ash particles to the cement matrix is very weak [6] [16]. Moreover, the addition of SAP to the mix reduces the mechanical performance of cement composites due to the voids introduced in the matrix after deswelling the of SAP particles [10] [17] [18].…”

Section: Compressive Strengthmentioning

confidence: 99%

Study on the Expansion of a Cement-Based System Containing Sap Polymer and Supplementary Cementing Materials

Ávalos-Rendón¹,

Mendoza²

2017

MSA

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In this paper, the addition of admixed superabsorbent polymer (SAP) improved the microstructure and durability-related properties in a cement-based system with supplementary materials. This is an important issue in real construction projects when good durability properties are required. This study investigates the effect of SAP on the systems using cement replacement by fly ash and silica fume considering the strength properties and durability properties of paste under sulfate attack of cement-based system. The replacement considered in the study was of 10% silica fume and 20% fly ash in each case, the dosage of SAP was 0.25% of the total amount of cementitious material. The results showed that the addition of SAP in the cement-based system improved the compressive strength and reduced expansion to sulfate attack. Scanning electron micrographs showed that utilization of fly ash with silica fume and silica fume with SAP resulted in a much denser microstructure, thereby, leading to an increase in compressive strength and lower expansion under sulfate attack.

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Use of ternary cementitious systems containing silica fume and fly ash in concrete

Cited by 223 publications

References 8 publications

Hydration Kinetics of a Low Carbon Cementitious Material Produced by Physico-Chemical Activation of High Calcium Fly Ash

Hydration Kinetics of a Low Carbon Cementitious Material Produced by Physico-Chemical Activation of High Calcium Fly Ash

Effect of Relative Levels of Mineral Admixtures on Strength of Concrete with Ternary Cement Blend

Study on the Expansion of a Cement-Based System Containing Sap Polymer and Supplementary Cementing Materials

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