Effect Of Cement Replacement By Silica Fume And Fly Ash Ppt

Effect of Cement Replacement by Silica Fume and Fly Ash ...

15/02/2021· Explore Effect of Cement Replacement by Silica Fume and Fly Ash with Free Download of Seminar Report and PPT in PDF and DOC Format. Also Explore the Seminar Topics Paper on Effect of Cement Replacement by Silica Fume and Fly Ash with Abstract or Synopsis, Documentation on Advantages and Disadvantages, Base Paper Presentation Slides for IEEE Final Year Civil …

Fly ash and silica fume concrete mix design

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 …

Effects of Silica Fume and Fly Ash as Partial Replacement ...

The replacement levels of OPC by Silica Fume were 0%, 2.5%, 5%, 7.5%, 10%, 15% and 20% where replacement levels of OPC by Fly Ash were 0%, 5%, 10%, 15%, 20%, 25% and 30%. 1% super-plasticizer was used in all the test specimens for high performance (i.e., high workability at lower water-binder ratio) and to identify the sharp effects of Silica Fume and Fly Ash on the properties of concrete ...

Effect of cement replacement by silica fume and fly ash ...

Effect of cement replacement by silica fume and fly ash: – The higher the percentage of FA the higher the values of concrete compressive strength until 30% of FA. However, the highest value of concrete compressive strength is obtained from mix containing 15% SF.

Effect of cement replacement by Silica fume and fly ash

Effect of cement replacement by Silica fume and fly ash By : Pranav Padmane Earlier notion of using high amounts of cement for concrete has now changed on favour of increased use of high amounts of mineral admixtures and super plasticizers with reduced amounts of cement and water in the concrete mixtures. Energy plays a crucial role in growth of developing countries, like India. In context of ...

EFFECT OF CEMENT REPLACEMENTS BY FLY ASH AND …

Cement replacement levels by fly ash were 0, 10, 20, 30, and 40 percents and by silica fume were 0, 4, 8, 12, and 16 percents. Thus a total of 25 mixtures were studied. Strengths at the ages of 28 days and 56 days were found. The results are presented in tables and figures. It was found that the highest replacement level of 40% by fly ash and 16% by silica fume, simultaneously, i.e. a total ...

The Effect of Silica Fume and Fly Ash as Cement ...

(The Effect of Silica Fume and Fly Ash as Cement Replacement on Pervious Concrete Compressive Strength Using Recycled Coarse Aggregate (RCA)) Anak Agung Gde Agung Oka Widyastana, Eva Arifi, Christin Remayanti N. Jurusan Teknik Sipil, Fakultas Teknik, Universitas Brawijaya Jalan MT. Haryono 167, Malang 65145, Jawa Timur, Indonesia-Telp (0341) 566710. 587711 E-mail : …

(PDF) Study of Partial Replacement of Cement by Silica Fume

The concrete mixes of varying percentages (0%, 5%, 10%, 15%) of silica fume as partial replacement of cement were cast into cubes for subsequent testing. In this work, to make the concrete coarse ...

Effect of fly ash and silica fume on compressive strength ...

01/06/2011· Fly ash and silica fume are used as a replacement of the cement content by different percentage to reduce the dosage of chemical admixtures needed to obtain the required slump flow. The chemical composition of Silica fume are given in Table 1.

[PDF] A study on the effect of fly ash and silica fume ...

Nowadays, mineral additives due to the advantages such as evaluation of waste for ecological balance, improving the physical and mechanical properties of cement or concrete a wide field of use are found. Two of the waste materials are silica fume and fly ash. This study aims to determine mutual influence of fly ash and silica fume with Portland cement.

EFFECT OF CEMENT REPLACEMENTS BY FLY ASH AND …

Cement replacement levels by fly ash were 0, 10, 20, 30, and 40 percents and by silica fume were 0, 4, 8, 12, and 16 percents. Thus a total of 25 mixtures were studied. Strengths at the ages of 28 days and 56 days were found. The results are presented in tables and figures. It was found that the highest replacement level of 40% by fly ash and 16% by silica fume, simultaneously, i.e. a total ...

Effect of Cement Replacements by Fly Ash and Silica …

It was found that the highest replacement level of 40 % by fly ash and 16 % by silica fume, simultaneously, i.e. a total replacement of cement to the extent of 56 % gave a 10 % increase in the 28-day compressive strength compared to that of control concrete.

(PDF) Replacement of Cement by Fly Ash

In this study, Silica Fume, Fly ash, Rice Husk Ash and MetaKaolin were used to replace cement in green concrete. for durability parts in the practical program, weight proportion were used to ...

A Review on Effect of Silica fume and Fly Ash on Concrete ...

A Review on Effect of Silica fume and Fly Ash on Concrete by Some Partial Replacement of Cement and fine aggregate Sanjay Thakur1, Harpreet Singh 2 1M.E Final year Department of Civil Engineering, 2Professor of Department of Civil Engineering, ABSTRACT: The aim of this study is to determine the performance of concrete by adding the fly ash and silica fume in concrete by the partial replacement ...

Influence of Silica Fume and Fly Ash on Settlement ...

Using mineral admixtures as cement replacement substance in concrete tends to increase in the future to provide greater sustainability in the construction industry. This paper aimed to study the influence of adding silica fume and fly ash as a weight of cement replacement on settlement cracking intensity of plastic concrete. Fifty-six mixtures were cast to evaluate the purpose of this study.

Effect of micro-silica fume and fly ash as a partial ...

Concrete is considered as an essential material required in construction. If the decreasing cement quantity used in concrete by replacing it with pozzolanic materials leads to required concrete properties, therefore, decreasing cost and the environment protection is the main goal. The current study investigated the fresh and early strength properties of normal concrete (NC) containing fly ash ...

Fly ash concrete ppt - SlideShare

FLY ASH IN CONCRETE: Fly ash could be an expensive replacement for Portland cement in concrete and using it, improves strength, segregation and ease of pumping concrete. Fly Ash particles provide a greater workability of the powder portion of the concrete mixture which results in greater workability of the concrete and a lowering of water requirement for the same concrete consistency. The rate ...

[PDF] A study on the effect of fly ash and silica fume ...

Nowadays, mineral additives due to the advantages such as evaluation of waste for ecological balance, improving the physical and mechanical properties of cement or concrete a wide field of use are found. Two of the waste materials are silica fume and fly ash. This study aims to determine mutual influence of fly ash and silica fume with Portland cement.

47611508-A-Paper-on-Replacement-of-Cement-by …

47611508-A-Paper-on-Replacement-of-Cement-by-Flyash-and-Silica-Fumes (1).doc - A Paper On EFFECT OF CEMENT REPLACEMENT BY SILICA FUME AND FLY ASH By. 47611508-A-Paper-on-Replacement-of-Cement-by-Flyash-and-Silica-Fumes (1).doc. School Govt. Elementary College, Qasimabad (Liaquatabad), Karachi; Course Title CE MISC; Uploaded By muhammadabusufyan5335. …

(PDF) Study on effect of Alccofine & Fly ash addition on ...

These included mixture containing 20% to 40% fly ash alone as cement replacement for Alccofine and Silica-fume mix concrete, Alccofine and Silica-fume mixtures with 4% to 14% weight of Binder.super plasticizer was added on different dosages based on the degree workability to be obtained. A large number of cube and Beam specimens were casted and subjected to normal curing at atmospheric ...

Effect of micro-silica fume and fly ash as a partial ...

Concrete is considered as an essential material required in construction. If the decreasing cement quantity used in concrete by replacing it with pozzolanic materials leads to required concrete properties, therefore, decreasing cost and the environment protection is the main goal. The current study investigated the fresh and early strength properties of normal concrete (NC) containing fly ash ...

Effect of Silica Fume and Fly Ash Admixtures on the ...

of 10% silica fume as cement replacement material in producing 70-MPa concrete can have a beneficial e ect in terms of reduced corrosion rate. Adverse e ects may result from using silica fume at a higher replacement level of 20% [21]. The use of an industrial waste by-product as a pozzolanic additive in concrete structures, mainly the use of fly ash (FA), was studied extensively around the ...

The Effect on Concrete by Partial Replacement of Cement by ...

The Effect on Concrete by Partial Replacement of Cement by Silica Fume: A Review Praveer Singh1, Mohd. Afaque Khan2, ... Traditionally fly ash and silica fume or the combination of both is added to concrete as a pozzolana material to enhance the properties of concrete. The use of silica fume as a pozzolana material has increased in recent years because when mixed in certain proportions it ...

Effect of micro-silica fume and fly ash as a partial ...

If the decreasing cement quantity used in concrete by replacing it with pozzolanic materials leads to required concrete pro... Effect of micro-silica fume and fly ash as a partial replacement of cement on fresh and early strength properties of concrete: AIP Conference Proceedings: Vol 2030, No 1

Partial Replacement of Cement with Fly Ash In Concrete And ...

Partial Replacement of Cement with Fly Ash In Concrete And Its Effect Authors: Vinod Goud (1) ... silica, alumina, and iron content in the ash. The chemical properties of the fly ash are largely influenced by the chemical content of the coal burned. Class F fly ash: The burning of harder, older anthracite and bituminous coal typically produces Class F fly ash. This fly ash is pozzolanic in ...

(PDF) Study on effect of Alccofine & Fly ash addition on ...

These included mixture containing 20% to 40% fly ash alone as cement replacement for Alccofine and Silica-fume mix concrete, Alccofine and Silica-fume mixtures with 4% to 14% weight of Binder.super plasticizer was added on different dosages based on the degree workability to be obtained. A large number of cube and Beam specimens were casted and subjected to normal curing at atmospheric ...

(PDF) Compressive Strength of Blended Portland …

In addition, using fly ash with silica fume in ternary blended cement enhances the workability of binary blended cement with silica fume alone (Long et al., 2002;Sharfuddin Ahmed et al., 2008;Shannag, 2011). Thus, this study investigated the compressive strength of binary and ternary blended cement mortar using fly ash and silica fume as a cement replacement at high levels. MAteRIAlS And ...

Early properties of concrete with alkali-activated fly ash ...

07/12/2020· Fly-ash-based geopolymer concrete with an activating solution of a mixture of silica fume, sodium hydroxide and water was investigated. Four Portland cement replacement weight ratios (0%, 5%, 10% and 15% by weight of fly ash) were studied. The effects of the Portland cement replacement on the early geopolymerisation process, compressive ...

Effect of Supplementary Materials on the Autogenous ...

In this study, three supplementary materials-i.e., silica fume, fly ash and blast furnace slag-are investigated. Measurements of final setting time, internal relative humidity, chemical shrinkage, compressive strength and autogenous deformation of the cement pastes with and without supplementary materials are presented. Two water-binder ratios, 0.3 and 0.4, are considered. The effects of ...

Fly Ash, Slag, or Silica Fume? – Continuing Education, PDH ...

As Otto explained, the material costs will obviously vary greatly depending on region, but in most cases, substituting fly ash or slag in place of silica fume will save on the overall cost of the mix. Also, you can see the pound for pound replacement needed for each material to portland cement in order to produce a mix with the same 28 day strength. Engineers should be aware of the cost ...

Location

CONTACT INFO