Effect of powder content and viscosity agents on creep and shrinkage of self-compacting concretes

摘要

The special composition of self-compacting concretes repeatedly confronts planners and building contractors with the question as to what extent this composition will lead to significant changes in creep and shrinkage properties in comparison to vibrated concretes and, if necessary, how such changes can be taken into consideration. The aim of the investigations presented here was tp examine this problem - particularly the respective effects of the powder and coarse-aggregate contents on the self-compacting concretes, as well as the influence of the viscosity agents that are often required for self-compacting concretes.