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effect of fly ash and silica fume on compressive strength of

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  • The effect of hydrothermal treatment on the compressive

    Therefore, the reaction of fly ash is slow as the "filler" effect of fly ash is dominant over the pozzolanic reaction of fly ash and this caused the reduction of compressive strength of all the PFA-cement blended mortars if compared to control mix.

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    Influence of Silica Fume, Fly Ash, Super Pozz, and High

    permeability and compressive strength of concrete containing silica fume and fly ash; super pozz and high slag cement to achieve the best concrete mixture having lowest permeability. The results were compared to the control concrete ordinary Portland cement concrete without admixtures. The

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    Green Concrete Produced by Fly Ash and Silica Fume

    The effects of fly ash, silica fume, water binder ratio, and age were studied on produced 12 mixtures. From the test results, it was concluded that the more effective variable on concrete's performance was the water binder ratio; it decreases the compressive strength and unit weight of the concrete. Keywords Green concrete, Fly Ash, Silica Fume, Environmentally friendly concrete, Cementitious materials. 1.

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    UTILIZATION OF SILICA FUME, FLY ASH AND STEEL

    Key words Fly Ash, Steel fibers, Concrete strength, Silica Fume SEM test etc. Cite this Article Irfaz ur Rahman Najar and Jagdish Chand, Utilization of Silica Fume, Fly Ash and Steel Fibre in High Strength Concrete. International Journal of Civil Engineering and Technology, 9(8), 2018, pp. 830-841.

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    To study the effect of varying proportion of Fly Ash

    To study the effect of varying proportion of Fly Ash and Silica Fume on Fresh and Mechanical Properties of High Strength Self Compacting Concrete. Rita M. Rathod P 1 P, M.R.Vyawahare P 2 (M.E. Student, Department of Civil Engineering, B.N. College of Engineering, Pusad, Maharashtra, India)1

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    Effect of Silica Fume and Fly Ash on Properties of

    Effect of Silica Fume and Fly Ash on Properties of Concrete Mixtures Using River Sand and Manufactured Sand AbstractThis research studiedon partial replacement of cement withsilica fume (SF) and fly ash (FA) on the properties of high strength concrete. The maximum compressive strength of

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    Effect of Silica Fume on Fly Ash Cement Bricks An

    the compressive strength of fly ash cement decreases with increase in content of silica fumes as replacement of cement whereas increases with increase in content of silica fume as addition.

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    TOTAL REPLACEMENT OF CEMENT USING SILICA FUME

    effects of silica fume and fly ash. If the dosage of SP is varied with the silica fume and fly ash replacement percentage, then the variations in the concrete strength will occur not only due to variations in the silica fume or fly ash contents but also due to change in the dosage of SP [6].

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  • Influence of fly ash and silica fume on the consistency

    Mar 01, 2011 · Read "Influence of fly ash and silica fume on the consistency retention and compressive strength of concrete subjected to prolonged agitating, Construction and Building Materials" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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    EFFECT OF SILICA FUME ON THE COMPRESSIVE

    new possibilities for the use of silica fume as a part of the cementing material in concrete and mortars to produce very high-strength concrete mortar or high durable concrete and mortars. Unlike natural pozzolans and fly ash, the silica reaction involving silica fume is rapid and therefore, a long curing period is not necessary.

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  • Advances in Materials Science and Engineering

    The objective of this study is to determine the effect of fly ash and silica fume on the freeze-thaw resistance of different strength and air content concretes. The capillary suction of deicing solution and Freeze-thaw (CDF) (test) technique is used to determine the surface scaling of the specimens [5].

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  • comparison between fly ash and silica Silica Fume for

    EFFECT OF FLY ASH AND SILICA FUME ON CONCRETE 2.1 FLYASH (PULVERIZED-FUEL ASH) Fly ash is a by-product of burning pulverized coal to generate electric power. There are periodic variations in the operation of a power station can results in occasionally varying properties of the fly ash.

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  • Fly ash and silica fume concrete mix design

    Apr 08, 2017 · Compressive strength fly ash has strong effects in compressive strength of concrete for 7 and 28 days of age. The variation of compressive strength for different replacement levels of OPC by Fly Ash. As well as fly ash, Silica fume has also strong effects in compressive strength of concrete for 7 and 28 days of age.

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  • Effect of silica fume, metakaolin, and low-calcium fly ash

    Dec 01, 2001 · Read "Effect of silica fume, metakaolin, and low-calcium fly ash on chemical resistance of concrete, Cement and Concrete Research" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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  • Advances in Materials Science and Engineering

    This study is based on determination of the freeze-thaw resistance of air-entrained and non-air-entrained normal strength concrete (NC) and high strength concrete (HSC) produced with fly ash and silica fume according to surface scaling. The procedure allows us to measure the amount of scaling per unit surface area due to a number of well defined freezing and thawing cycles in the presence of

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  • Effect of Fly Ash, Silica Fume and Blast Furnace Slag on

    The use of mineral admixture such as fly ash, blast furnace slag and silica fume in making high performance concrete has increased. The objective of this study is to investigate mechanical properties of compressive strength, splitting tensile strength and modulus of

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  • Effect of Silica to Alumina Ratio on the Compressive

    Based on the experimental results, the contents of 50% fly ash, 10% silica fume and 2% re-dispersible latex powder were chosen to modify MPC and the water resistance of the modified MPC was studied. The experimental results showed that the addition of fly ash prolonged the setting time and significantly increased the compressive strength of MPC.

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  • Effect of silica fume on the mechanical properties of fly

    The tensile strength also increased as the percentage replacement of fly ash with silica fume increased, first slowly and then rapidly (Fig.7). In general both the flexural and tensile strength of fly ash based geopolymer concretes containing silica fume followed the same pattern as compressive strength.

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    Strength and Durability Properties of Concrete using Fly

    along with cement replacement with fly ash and silica fume have not shown better performance as compared to the normal concrete but it is good enough to work and s, pavement etc. Compressive strength, split tensile strength and flexural strength of concrete with 30 % fly ash + 15 % silica as compared to normal concrete. International Journal of Engineering Research & Technology (IJERT)

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    Effect of Micro Silica and GGBS on Compressive

    Effect of Micro Silica and GGBS on Compressive Strength and Permeability of Impervious Concrete as a Cement Replacement MUHAMMAD RIZWAN AKRAM is a relatively new material compared to fly ash and GGBS, having come into increased use in the concrete industry to the effect of silica fume on the temperature rise of concrete

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  • Effect of Bentonite, Fly Ash and Silica Fume cement

    Jun 20, 2014 · Effect of B, FA and SF over the uniaxial compressive strength of the samples of 7, 14, 28 days that have been prepared in this manner was investigated. In results of the experiments it was observed that the most effective parameter over the uniaxial compressive strength of

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  • Published in Cement and Concrete Research · 1998Authors L Lam · Y L Wong · Chi Sun PoonAffiliation Hong Kong Polytechnic UniversityAbout Compressive strength · Fly ash · Fracture mechanics · Silica fume · Materials science[]

    Effect of Silica Fume and Fly Ash on Compressive

    Effect of Silica Fume and Fly Ash on Compressive IJMREM Page 12 Paki Turgut (2012) published a research paper on the use of Fly ash Silica fume and Lime stone powder in making without use of cement.

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  • Internal Curing by SAP in Ultra-High Strength Concrete

    On the other hand, under the internal curing of SAP, the silica fume and fly ash demonstrated positive synergistic effects on the compressive strength. At the early age of hydration, the effectiveness of internal curing first increases and then decreases with the increase of fly ash and silica fume content.

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  • Effect of Silica Fume on Fly Ash Cement Bricks An

    Jan 15, 2015 · The compressive strength decreases when cement is replaced with silica fume whereas it increases with the addition of silica fume. It is clear from Figure 4 that the compressive strength of fly ash bricks increases gradually with increase in silica fume in phase-II.

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    International Journal of Science and Engineering

    several materials like Cement, Fly ash, silica fume, sand for the manufacturing of the . The silica fume is added in percentages as follows 3%, 4%, 5%. In testing of fly ash there are mainly two types of the testing is done such as compressive strength test and water absorption test after 7, 14 and 28 days curing. INTRODUCTION 1.1

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  • Effects of Silica Fume on Concrete Compressive Strength

    The experimental results showed that the addition of fly ash prolonged the setting time and significantly increased the compressive strength of MPC. The addition of silica fume improved only the water resistance of MPC.

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    To study the effect of varying proportion of Fly Ash

    Ash (FA) and Silica Fume (SF) are used. Fly ash is a divided residue resulting from the combustion of coal. High fineness, low carbon content & good reactivity are the essence of good FA. It improves the flow ability & reduces water demand. And also gives proper slumpwithout segregation & bleeding [2]. Silica fume is the by product of the industries producing silicon alloys.

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  • Published in Construction and Building Materials · 2011Authors Şakir Erdogdu · Caner Arslanturk · Şirin KurbetciAffiliation Karadeniz Technical UniversityAbout Superplasticizer · Silica fume · Fly ash[]

    EFFECT OF NANO-SILICA, SILICA FUME, CEMENT

    effect of nano-silica, silica fume, cement content and curing conditions on the concrete COMPRESSIVE STRENGTH AT 7 AND 28 DAYS dominant role in high strength concrete and in

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  • [DOC]

    Prediction the Effects of Fly Ash and Silica Fume on the

    In this study, Portland cement replaced with fly ash as a ratio of its weight of 0 %, 10 %, 20 %, and 30 %, silica fume as a ratio of its weight of 0 %, 5 %, 10 %, both fly ash and silica fume as a ratio of its weight of 5 % + 5 % and 10 % + 10 %.

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

    Fly ash, ground granulated blast-furnace slag, calcined clay, metakaolin, calcined shale, and silica fume contribute to the strength gain of concrete. However, the strength of concrete containing these materials can be higher or lower than the strength of concrete using portland cement as

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  • Compressive strength and stability of sustainable self

    However, a fly ash replacement ratio of 20% increased the compressive strength by a small margin compared to the control mix. Replacing cement with silica fume at 5%, 10%, 15%, and 20% was found to increase compressive strength of SCC mixes compared to the control mix.

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    A Review of Effect on Compressive Strength of

    M. Collepardi et.al. (2010) studied the effect of combination of silica fume, fly ash and ultrafine amorphous colloidal silica (UFACS) on concrete. The result shows that steam cured concrete containing SF and FA alone are much stronger than NC cured at room temperature at early age where as compressive strength

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