Temperature Control Properties of Mass Concrete with Phase Change Material

Phase change materials (PCM) can be applied in mass concrete to prevent thermal cracks.Phase change material was added to fresh concrete when casting,latent heat in phase change material was released or absorbed in a certain temperature to control temperature in mass concrete.Temperature measurement system was designed to test temperature-control properties of PCM concrete.The results show that phase change material can reduce maximum temperature in concrete; furthermore,it can reduce temperature increase and decrease velocity so as to prevent thermal cracks in mass concrete.