Measurement of Autogeneous Shrinkage of Concrete in Massive Structure
and Example of Control Method of that
By T. Ohtomo, N. Nito, A. Hiroshima and S. Miyazawa
Concrete Journal, Vol.44, No.3, Mar. 2006
- Synopsis
- Volume change property of concrete measured by embedded strain meter under the different thermal history from hydration in the structure or high temperature curing like that was examined. And the influence of kinds of cement, mix proportion and temperature rising history for the autogeneous shrinkage property of concrete was estimated. In regard to the concrete using blast-furnace slag cement type B that would be grown the autogeneous shrinkage remarkably from the knowledge as a result of above investigations, we proposed the control method for the shrinkage compensating by material improvement of cement and confirmed the effect of this treatment on the crack control performance in real construction works of mass concrete.
- Keywords:
- autogeneous shrinkage, blast-furnace slag cement, mass concrete, thermal stress, hardening origin, measurement
