Development of Eco-friendly Geopolymer Concrete Using M-Sand

Abstract

This research is mainly concentrated on the comparison of compressive strength of geopolymer concrete and conventional concrete with different proportions. This research is progressed to find a suitable eco-friendly concrete as a replacement for conventional concrete. In conventional concrete, cement, sand and blue metal are used. Cement is used as a prime binding material, which is a key resource for carbon dioxide. Carbon dioxide, a major member of greenhouse gases is a serious threat to the environment. Availability of river sand is becoming obsolete due to its extensive use in the construction industry. This study is focused on the reduction of carbon dioxide and river sand by making a cementless concrete called geopolymer concrete with M-Sand as fine aggregate. In this research, concrete specimens with various mix proportions for conventional and geopolymer concrete have been cast. In geopolymer concrete, alkaline solution is added to activate the binding property of fly ash with aggregates. The geopolymer concrete is cured under ambient conditions. The geopolymer concrete exhibits comparatively better compressive strength and may be used as replacement for conventional concrete.