what is mass concrete

Mass concrete is defined as any volume of concrete with dimensions large enough to require measures to cope with the generation of heat from hydration of cement and attendant volume change to minimize cracking. It is associated with structures such as massive mat foundations, dams, and other concrete structures with a width or depth exceeding three feet or one meter. The main factors influencing temperature variation in mass concrete structures are the size of the structure, ambient temperature, initial temperature of the concrete at the time of placement and curing program, cement type, and cement contents in the mix