Effect of Fly Ash Replacement Content on the Autogenous Shrinkage of Self-Compacting Concrete.

Based on an experimental program, autogenous shrinkage of self-compacting concrete (SCC) has been investigated by varied factors such as partial replacement by fly ash content, the unit quantity of binder, and water-binder ratio of mixture design, The results indicate that the autogenous shrinkage of self-compacting concrete decreases with increasing fly ash content and water-binder ratio and that when the unit quantity of binder is 550 kg/m3, the autogenous shrinkage of self-compacting concrete is smaller than that with unit binder quantity of 500 kg/m3 or 600 kg/m3. These observations suggest that a good correlation exists between the autogenous shrinkage and the mineral mixture design.