Self-curing Possibilities of Polygel in Ordinary Concrete

Abstract

The super absorbent polymer (SAP) absorbs the water and forms gel results in increase in the volume proportionally. The gel form will act as a source for self-curing after final setting of concrete. In this study, poly acrylic acid (PAA) has been tried as self-curing agents and its effect on ordinary concrete was examined. This report is an experimental investigation in which PAA mixed with ordinary concrete in varying percentages. Poly acrylic acid available in crystal and powder form mixed separately with ordinary concrete, and its effect on properties of concrete was examined. Powder form of PAA was found to be more effective than crystal form. This may be because of crystal form of PAA provides additional void in the concrete mass. The concrete strength may get reduced because of porous nature in a concrete.