14-11-2014, 10:01 AM
Abstracts: Conventionally curing concrete means arresting release of the heat of hydration directly to atmosphere. Normally wet curing is applied for this purpose and curing action happens “externally.” But now a day, due to increased speed of construction and scarcity of resources, wet curing is sometimes not practical and often neglected in many cases, therefore self-curing agents came into practice. Internal curing refers to the process by which the hydration of cement occurs because of the availability of additional internal water that is not the part of mixing water and so curing takes place from inside. This project includes experimental study to be carried out to investigate the effect of water soluble polyvinyl alcohol as self-curing agent. The present project includes experimental study to be carried out to investigate the effect of water soluble polyvinyl alcohol as self-curing agent on compressive strength of cement concrete. The cement concrete blocks prepared by using 0.02%,0.04%,0.06%,0.12%,0.18%,0.24%,0.36%,0.48% and 0.60% of polyvinyl alcohol are tested for compressive strength test using randomization method and the most significant proportion of polyvinyl alcohol is selected by using analysis of variance method. The compressive strength of self-curing cement concrete for 7 and 28 days are compared as per IS code with conventional concrete for similar mix design by the same randomization method and analysis of variance method.