• Nikhil Pawar
• Prof. S. Nalawade

The continuous global demand for infrastructure due to persistent increase in population growth implies that more aggregate and cement would be required in concrete production. This would eventually lead to more extraction and depletion of natural resources and increased carbon emission. This leads to more extraction, depletion of deposits of natural gravel, and increased CO2 emission from quarrying activities. Concrete is a heterogeneous material comprising fine aggregate, coarse aggregate, water and the binder known as cement. The presence of coarse aggregates contributes more to the heterogeneity. 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 aggregate, microsilica, and synthetic macro fibre with the object to boost higher use of recycled coarse aggregate in the construction industry. 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.

Micro silica; Recycled aggregate; Natural aggregate; Construction and demolition waste; Recycled concrete

"STANDARD RECYCLED AGGREGATE CONCRETE INCORPORATE WITH MICRO SILICA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.1-8, June 2019, Available :http://www.jetir.org/papers/JETIR1906O01.pdf

"STANDARD RECYCLED AGGREGATE CONCRETE INCORPORATE WITH MICRO SILICA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp1-8, June 2019, Available at : http://www.jetir.org/papers/JETIR1906O01.pdf