Influence of fly ash on restrained cracking potential of concrete

Abstract

    Premature cracking of concrete is a one of primary cause of loss of issuses such as lossing ofaesthetics, reducing in bearing capacity and durability, costing of repair, declining service life andincreasing in potential risks. The premature cracking is a complex phenomenon and depended on anumber of factors: concrete components, construction works, environmental conditions, structuralproperties and other factors. This paper will study the restrained shrinkage behavior with the ringtest method and effectiveness of fly ash (replace cement by 15% and 25% fly ash) on crackingresistance of concrete. The results revealed that the addition of fly ash improves the prematurecracking resistance in restrained concrete.