An Experimental Investigation on Fine Crushed Recycled Construction Dismantling Waste & Course Fly Ash Aggregate Geopolymer Concrete

Abstract

Day by day infrastructure development in most parts of the India, especially in rural area was increased and hence very less amount of raw material is available. Up till now by using natural resources to produce raw materials on a constant basis can threaten environmental conditions. Aggregates are one of the raw materials which is obtained from rock exploration in nature. This is understandable considering to make concrete cement and asphalt concrete, it requires 60% to 70% of aggregate of the total mixed volume. The need for raw materials in the form of aggregate to support this infrastructure development cannot be fully met in every Indian area, especially in remote areas. There can be various obstacles in aggregate mobilization because all of Indians areas are not provided by adequate transportation facilities and infrastructures. Thus, in this research work we will take sustainable efforts to develop alternative materials such as construction and dismantling waste and industrial waste to be used as replacements of natural aggregates also we replace ordinary Portland cement 100% by fly ash with binders to make Geopolymer concrete. In this research we have studied the production of different class-F fly ash based aggregates and, the influence of binder on the physical and mechanical properties of pelletized aggregates and the effects of alkali addition and curing methods on the strength gain. Mostly focus on harden properties & durability of Geopolymer concrete incorporating with complete replacement of natural aggregates by class F fly ash and construction and dismantling waste aggregate.