Research on Retempered Concrete’s Drying Shrinkage

Samenvatting

The loss of moisture causes drying shrinkage in concrete, which is a key factor influencing the material’s behavior. Consequently, research into the causes of drying shrinkage is essential. The drying shrinkage of retempered concrete for retempering times of 15, 30, 45, 60, 75, and 90 minutes is attempted to be studied in this research. “Retempering of concrete” refers to the process of mixing concrete, if needed, with the addition of precisely the amount of water needed. It is not uncommon to add a 
little bit of more cement during retempering as well. The two specimens used in this experiment were cast and left in an open environment for 24 hours. Their dimensions are 500 mm×350 mm×45 mm. The specimens are moved to the curing tank after 
demoulding and left there for 28 days. The parameters of shrinkage, such as crack length, breadth, number, and total area, have been identified.