ABSTRACT
Recently, high durability and high strength concrete has been required for concrete structures in Japan. As the autogenous shrinkage strain is smaller than thermal strain and the drying shrinkage strain, the autogenous shrinkage strain has not been considered until now in the design. However, applications of high strength concrete and self-compacting concrete are increasing, since high performance concrete is more in demand for concrete structures recently. The autogenous shrinkage strain of concrete cannot be disregarded, since the cement contents used by the application of such concrete increases. Studies on the mechanism and control method of autogenous shrinkage strain of concrete are recently reported in great numbers.
