Study on the Properties of Concrete by Using Super Absorbent Polymer

Abstract

The use of super absorbent polymer (SAP) in concrete is confirmed to have many constructive effects on the properties of concrete in its both stages; fresh concrete and hardened concrete. This study focus on the use of an most select amount of Sodium Polyacrylate as a super absorbent polymer in ordinary plain concrete. In the past efforts were made only to study the significant reduction of crack width in the concrete. However strength being the important factor for concrete the study focuses on the strength parameter of concrete. The main focus of this study will be on the result of the SAP on the fresh concrete as well as the hardened concrete. Several batches were prepared to determine the result of the SAP on concrete when subjected to compressive, tensile stresses. In the present study, the affect of admixture (superabsorbent polymer) on compressive strength, split tensile strength and water absorption by varying the percentage of superabsorbent polymer by weight of cement from 0% to 1.5% were studied for M20. It was found that a superabsorbent polymer could help in increasing hydration process by giving superabsorbent polymer by weight of cement was optimum for M20 grade concretes for achieving maximum strength without compromising workability. In this review paper effort has been made to understand the working and efficiency of this curing method and compared with the conventional water curing method.