Abstract
The purpose of this study is to examine the effect of low-heat portland cement which control thermal cracking in thick concrete wall of cut and cover tunnels, through the measurement for massive concrete structures and the numerical analysis of a crack width by the finite element method.
As a result of the examination, since use of low-heat portland cement reduces heat of hydration, and the compressive strength of concrete with it became high at early age and increased smoothly later when curing with high temperature was conducted. It is learned that use of low-heat portland cement is effective to control a thermal cracking of massive concrete structures.
