Durability Properties of Geopolymer Concrete Produced with Recycled Coarse Aggregates and Quarry Stone Dust

Abstract

Ordinary Portland cement concrete was notorious in the world for its authenticity, adaptability and durability. Concrete material was widely used like water. OPC was prominent in construction but, it was not ecological due to colossal energy devouring in its manufacture and due to issuance of humongous CO2 [1]. Exertion was desired to develop an ecofriendly construction- material for diminishing diffusion of green house gases into atmosphere. The enterprise to evolve an environmental friendly concrete had afford bountiful alternatives. Geopolymer Concrete was the one eminent among them [2].This research paper introduces an experimental studies on durability of Geopolymer Concrete using flyash and recycled aggregates such as Quarry Stone Dust and Recycle Coarse Aggregate. Geopolymer concrete was prepared using flyash as primary source material instead of cement and sand was replaced with Quarry Stone Dust at various proportions such as 0, 20, 40, 60, 80 &100 % and Course Aggregate was replaced with Recycle Coarse Aggregate at various replacements i.e. 0, 20, 40, 60, 80, 100%. Studies on durability performance under acid attack test were made. The acid used was H2SO4 of 5% Concentration. The Specimens are cured in acid for 30, 60 & 90 days. The molarity used was 12M. Cubes (100x100x100 mm) and cylinders (200x100 mm) are cured for 28 days at ambient temperature. After cubes & cylinders were immersed in H2SO4 solution for 30, 60 & 90 days, reduction in strength was observed.