This study focused establishing ECC mix proportion which enables us to control shrinkage cracking due to high unit water amount and to secure reasonable workability by overcoming relatively high fi- ber volume fraction. The former task was successfully achieved by…
This study focused establishing ECC mix proportion which enables us to control shrinkage cracking due to high unit water amount and to secure reasonable workability by overcoming relatively high fi- ber volume fraction. The former task was successfully achieved by involving anti-shrinkage admixture, and ef- fects of those admixtures were investigated via drying shrinkage tests and restrained cracking tests. The latter task was secured by involving natural water soluble polysaccharide ride type viscous agents replacing well known cellulose type viscous agent. Fresh compacting tests were adopted to demonstrate semi self compacting fresh property of ECC with polysaccharide ride type viscous agents. As a result, proposed mix proportion demonstrated sufficient ability to be applied to actual construction project via full scale mixing tests.