高性能混凝土强度试验研究

Experiment Research on Strength of High Performance Concrete

高性能混凝土强度增长的影响因素很多,但是当某种混凝土的组分和生产工艺确定后,强度增长主要取决于温度和龄期。该文针对C50高性能混凝土在5个不同温度(10℃、20℃、30℃、50℃、70℃)养护条件下及不同龄期的混凝土试件进行分组试验,分析高性能混凝土强度发展与龄期的变化规律,并利用回归方法拟合经验公式。研究高性能混凝土在非标准养护条件下的强度变化情况及同一龄期不同养护温度下强度变化情况,并与标准养护条件强度进行比对,以更好地指导混凝土施工。

There are many factors impacting the strength of high performance concrete,But when some concrete components and production processes are identified,Concrete strength of growth mainly depends on the curing temperature and age. Based on different group strength test of C50 high performance concrete, the paper studies the concrete strengttt law in fivc different temperature（10 ℃, 20 ℃- 30 ℃- 50 ℃. 70 ℃）curing conditions and different age. It uses regression methods to determine the fitting formula. The paper study on strength variations in non--standard curing conditions and the same age under different curing temperatures strength changes of high performance concrete, and compared with the strength of standard curing, in order to guide the concrete construction better.