Concrete heat insulation mat, concrete casting formwork with heat insulation mat, concrete heat insulation method, and concrete structure construction method

摘要

PROBLEM TO BE SOLVED: To provide a technique which can suitably retain the heat of placed concrete.SOLUTION: A heat-retaining mat for concrete is used for retaining the heat of placed concrete and has a light heating layer that has a light heating material for generating heat by absorbing light, and a heat insulation layer that is put on the light heating layer and has the light transmitting function to transmit heat to the light heating layer side.SELECTED DRAWING: Figure 2