A study of the strength recovery of mortar with an initiated crack
By Hiromichi Matsushita, Yoshihiro Sue and Rie Kiyosaki

Concrete Research and Technology
Vol.14, No.1, Jan 2003 (Issue 31)


Synopsis:
Initial crack in concrete structure is mentioned as a factor which lower durability. Then, the purpose is an index of crack test in the ability test type. In this Study, three point bending test of mortar with a crack initiated was carried out, and strength was examined. The factor was the type of cement, the time of crack initiated, and the curing period . The system of the strength recovery is the hydration of the unhydrated cement at the initial crack.
Keywords:
Initiated crack, Three point bending test, Curve of load and CMOD, Strength recovery, Unhydrated cement, Hydration

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