Experimental Study on Conventional Recycled Aggregate Concrete Associate with Micro Silica

Abstract

Abstract: The ongoing need for infrastructure around the world as a result of continued population growth suggests that more aggregate and cement will be needed in the manufacture of concrete. This would eventually result in greater carbon emissions, increased resource extraction, and depletion. The increasing aggregate and cement requirements are a result of the constant global demand for concrete. More extraction occurs as a result, depleting natural gravel resources and increasing CO2 emissions from quarrying operations. Construction costs and carbon emissions could both be reduced by partially substituting recycled material for natural aggregate. Fine aggregate, coarse aggregate, potable water, and the cement-based binder make up the heterogeneous material known as concrete. The heterogeneity is increased more by the presence of coarse particles. An aggregate consumes about 60% to 75% of the overall volume of concrete. The aim of this research work was to develop high performance concrete using recycled coarse aggregate, microsilica, and synthetic macro fibre with the object to boost higher use of recycled coarse aggregate in the construction industry. Concrete is most important material used in the construction industry. Large amount of natural aggregates were used in concrete, this causes the nature. Now a day’s many structures are demolished & rebuilt, demolishing of structures causes problem with dumping of waste material. An important aspect of sustainable construction is recycling or reuse of the construction material and demolition waste. It will maintain a friendly green environment. Recycled aggregates has micro cracks on its surface causes low strength, low workability of concrete. This draw back can be avoided by using micro silica. In this paper experimental results were shown for recycled aggregate incorporating with micro silica.