Concrete composition with reduced shrinkage

摘要

The present invention provides a concrete composition comprising:
- a hydraulic binder component which comprises cement, particulate materials having a size of less than 200 µm, and an expansive agent;
- granular elements having a size greater than 500 µm;
- a shrinkage reducing agent;
- a superplasticizer; and
- water;
wherein the water to hydraulic binder ratio is from 0.1 to 0.4 by mass, the shrinkage reducing agent is present at 0.1 to 1.0% by weight of binder, and the particulate materials are present in a concentration of from 10 to 50% by total weight of binder.