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Characteristics of Low and Medium Grade Blended Cement with Silica Fume Sand

Author(s):

Vijay Machhar , Technocrats Institute of Technology (Excellence),Bhopal; Prof. Pankaj Rathore, Technocrats Institute of Technology (Excellence),Bhopal

Keywords:

Alternate Building Materials, Compressive Strength Test, Silica Fumes, Rebound Hammer, Slump Cone Test

Abstract

Concrete can bear up the severest environmental conditions; however, in several conditions it may show very low characteristics. Hence, engineers worldwide are constantly trying to improve its characteristics with the aid of modern admixtures and waste materials, usually called as alternate building materials (ABM). Currently, concrete mixtures include different alternate building materials which produce part of the cementitious constituent. The major advantage of ABM is its capacity to substitute basic ingredients partially or wholly in concrete and still presenting the cementitious property. The use of waste material as ABM helps to consume these waste materials and also improves the properties of concrete in fresh and hydrated states. Most significant ABMs which are used very frequently are fly ash and silica fume as they enhance both compressive strength and durability of concrete. In the present research a series of experiments had been performed to make comparative study of various mechanical properties of concrete mixes prepared by using Portland cement and Fly ash blended cement (in 1:1 proportion). Concrete mixes are modified by replacing sand by silica fume in different percentages 5%, 10%, 15%, 20%, 25% and 30%. The ingredients are mixed in 1:2:4 and 1:1:2 proportions. The properties studied are 7 days, 14 days and 28 days compressive strengths, workability and porosity.

Other Details

Paper ID: IJSRDV7I20147
Published in: Volume : 7, Issue : 2
Publication Date: 01/05/2019
Page(s): 115-116

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