Using digital image correlation to evaluate plastic shrinkage cracking in cement-based materials

Fresh concrete exposed to a drying environment is susceptible to plastic shrinkage cracking, which can result in negative impacts on concrete durability. In the current ASTM standard, plastic shrinkage cracking is evaluated by the average crack width measured at 24 h after concrete placement, considering that the traditional crack measurement tools cannot be used on fresh concrete. In this work, a non-contact strain measurement technique based...