2017 Volume 71 Issue 1 Pages 280-287
This study proposes a flexural strength management system with cumulative maturity concept and verifies for construction crack of “early opening to traffic” concrete pavement（One Day Pave, ODP）. ODP employs special mixture proportions with general purpose materials to accelerate strength development and shorten hardening period down to literally one day or less. On the other hand, the time for flexural strength management becomes shorter. Therefore the strength should be precisely and effectively evaluated during the curing period. This study developed a strength evaluation method using cumulative maturity, which is easily estimated by measured concrete temperatures. Also the verification result of construction crack shows that insulated curing is important not only for strength development but also for prevention of construction crack.
