Study on Workability and Durability Characteristics of Self- Compacting Geopolymer Concrete Composites

Increase in production of cement causes the huge amount of carbon-dioxide emission which results in global warming. In order to overcome this problem many researchers put their effects to achieve the optimum strength and durability of concrete by replacing the cement with fly ash and when it combines with the alkali activator solution it becomes geopolymer concrete. These concretes have the ability to fail due to lack of compaction. Self-compacting concrete is the innovative way of concreting; it can be compressed into every corner of formwork by means of its own weight. In order to trounce poor compaction and global warming; the new way of concreting is introduced as self-compacting geopolymer concrete. This concrete has two limitations such as delay in setting time and heat curing to gain strength. The present research intended to set right these limitations by replacing the fly ash by OPC up to 20% on a mass basis. Also an attempt to make to use of manufactured sand instead of using river sand due to scarcity of river sand and natural resource depletion. The durability of self-compacting geopolymer concrete composites is based on the tests conducted such as acid attack, sulphate attack and Sorptivity.