Countermeasure for Pier Mass Concrete under Construction of Uratakao Bridge
By K. Kawai, T. Shinoda, K. Suda and Y. Watanabe
Concrete Journal, Vol.48, No.6, Jun. 2010
- Synopsis
- As a countermeasure for pier mass concrete under construction of Unratakao Bridge, we study on the effect of concrete age for quality control, and on the effect variation, by thermal stress analysis method.
As a result, low heat and resist shrinkage blast-furnace cement was advantageous on the point of cracking control, cost performance, and carbon-dioxide emission.
This cement is new material, and it had never been used for bridge construction work in Tama area of Tokyo. Therefore, we confirmed quality of the cements, and originally set the standard for quality control, considering that the cement show higher perforamnce than the JIS standard one. - Keywords:
- mass concrete, low heat and resist shrinkage blast-furnace cement, thermal stress analysis, concrete age of quality control material
