EXPERIMENTAL INVESTIGATION ON PARTIAL REPLACEMENT OF CEMENT USING MICRO-SILICA

Civil Engineering

Concrete is the most undisputed construction material in the world. In concrete, scientist have found many special type of concrete which they have replaced cement, river sand, gravel and even water. Method of concreting also have changed a lot, but in environmental factors and in strength factors only. Strength is most important factor in concrete as strength factor explains the nature of the concrete. In today’s concrete history, durability is a question mark which our engineers doesn’t satisfy as the time lack and problems of construction. Pores are the main reason for reduction of strength of concrete. Reduction of pores can increase the strength as well as the durability of the concrete, so use of micro silica in replacement of cement is been adopted in this project. Micro-silica is a fine material than the cement, which is 10 times less diameter than the cement. Instead of using large amount of replacement material, Micro-silica overcomes by using small amount of replacement giving strength than the expected level. This paper explains that, according to the Indian standards, M50 is allowable grade and for higher strength with low replaceable material we can obtain greater strength using Micro-silica.

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