Cracking suppression method of mass concrete by heat supply aging

摘要

PROBLEM TO BE SOLVED: To provide a method for inhibiting a crack that is prone to occur in the surface of mass concrete, by heat-curing.SOLUTION: In a state where an embedding thermocouple 11 is disposed inside a pouring space SP, concrete is poured, and a heat generation mat 13 is installed on the surface of the poured concrete, a surface thermocouple 12 is disposed between from the heat generation mat 13 to the surface of the concrete. A control device 14 controls power supply to the heat generation mat 13 according to a temperature difference between the temperature of the concrete surface, and the internal temperature of the concrete as a reference.