Characteristic strength of before and after self-healing concrete with the help of super absorbment polymer

Self-healing concretes are being widely recognized as a remedial technique to improve the durability of concrete. In this paper, experimental study of self-healing concrete technologies were completely reviewed. There view presents a new insight into our search for the treatment of unexpected cracking of concrete. Super absorbent polymer (SAP) is also used as a water absorbent agent. It can hold upto 20% of water and the strength of the normal concrete is as safe as a design mix. The Poly vinyl Alcohol is used as SAP chemical admixture in powder form at %. It will help the sustainable development concept which is widely recognized to enforce in the construction industry in India by increasing the lifetime of structure and postponing the demolition and repair works. As the conventional concrete used in the construction industry required a plenty of water as well as cement, the generation of CO₂ is 1.2 tonnes. Now a days the resources are present in less amount. As per the mix design, M-35 grade control and SAP concrete specimens are prepared and tested for compressive strength, split tensile strength and flexural strength up to 28 days of age. The specimens are cured for 14 days after initiating cracks in them for undergoing rapid self healing. The self healed specimens are tested and compared with that of control specimens. It is found that the addition of 1.5% PVA has enhanced the early stage strengths and improved the autogenous healing property of concrete.