A Study of the Properties of Shrinkage in High Performance Concrete according to the Kinds and Contents of Superplasticizer

고성능감수제 종류 및 첨가량 변화에 따른 고성능 콘크리트의 수축특성에 관한 연구

This study discusses the fundamental properties of high performance concrete and autogenous drying shrinkage with the kinds and the adding amount of superplasticizer. According to results, drying shrinkage hardly shows differences by the kinds of superplasticizer, and is reduced with an increase of the adding ratio. Autogenous shrinkage is reduced in order of HP>HN>HM, but does not make a big difference. As the adding amount of superplasticizer increases, autogenous shrinkage is reduced due to a decrease of cement content which influences on autogenous shrinkage seriously.