珊瑚骨料混凝土徐变性能研究

Study on creep characteristics of coral aggregate concrete

针对岛礁服役期内的,采用珊瑚骨料制备的混凝土建构筑物的安全性问题,对珊瑚骨料混凝土的徐变进行研究,研究结果表明:珊瑚骨料混凝土早期收缩值与普通混凝土较为接近,但上升趋势明显高于普通混凝土;其早期徐变度与普通混凝土接近,后期徐变度高于普通混凝土混凝土,因此珊瑚骨料混凝土的徐变是岛礁工程安全性不容忽视的问题。

Based on the safety of concrete structures made from coral aggregate during the service period of the island reef,it studies the creep of coral aggregate concrete.The results show that the early shrinkage value of coral aggregate concrete is close to that of ordinary concrete.However,the rising trend is significantly higher than that of ordinary concrete.Its early creep degree is close to that of ordinary concrete,and the later creep degree is higher than that of ordinary concrete.Therefore,the creep of coral aggregate concrete is a problem that the safety of the island reef engineering can not be ignored.