大体积混凝土养护温度自动调控抗裂技术研究

New Technology of Bulky Concrete Maintenance Temperature Automatic Regulate and Control for Resist Crack

对体量大、水化热高、容易引发温度变形裂缝的混凝土结构的开裂机理及其危害性进行了论述;提出了坑内注水蓄热、顶面蓄水,侧面覆盖养护、顶面分层蓄水,侧面分层覆盖养护以及模板上附挂高温防水密闭的纤维布外套,夹缝内送蒸汽或热风的自动调控养护温度抗裂技术。

The article aimed at bulky concrete that was easy to lead crack in high quantity of heat, discussed the crack mechanism and opened harmfulness. Put forward that water flooding in puddle for retain hot and store water on top face, then cover on side for curing; bed store water on top face, then bed cover on side for curing; hang fiber cloth with high temperature resistant; waterproof and seal up set hot steam or wind technology; measure automatic regulate and control in maintenance temperature.