Abstract
Presently, Fly ash and GGBS were one of the widely using pozzolanic materials in construction industry. In recent years technique of using self-curing agents for internal curing for improving the strength of concrete has been developed. This investigation aims at the evaluation of mechanical properties of self-curing concrete with fly ash, with GGBS and water-soluble polyethylene glycol (PEG 400) as a self-curing agent with different percentages of 0, 0.5, and 1% with 20 and 30% of fly ash and 0, 40 and 60% of GGBS individually. The strength properties are investigated keeping concrete in ambient curing in the laboratory at a temperature of 27 °C. The experimental results have revealed by using 1.0% of the self-curing agent in concrete of 30% substitution of cement with fly ash. There is an increase of compressive strength was observed around 20 percentage in M25 grade, 11.95 percentage in M35 grade concrete, while the split tensile strength was increased from 2.8 to 6 N/mm2 for M25 grade the same for M35 grade it is increased from 4.2 to 7 N/mm2 compared to the conventional concrete.
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