通过对不同养护条件下3种高强高性能混凝土的抗压强度和保温条件下的拟绝热温升特性进行试验测试,考察了水灰比对混凝土拟绝热温升值和温升速率的影响,并分析了恒温和拟绝热温升两种养护条件对不同水灰比混凝土的抗压强度的影响。结果表明:水灰比越低,拟绝热温升的温峰值和温升速率越大,且到达温峰值的龄期越早;拟绝热温升养护条件对高强高性能混凝土抗压强度的发展具有促进作用,且促进作用随水灰比的提高而更显著。
Compressive strength and temperature evolution of high performance concrete(HPC ) with 3 different water cement ratio un- der semi-adiabatic and isothermal condition were carried out.The influences of water cement ratio and curing condition on compressive strength of HPC were studied and disscussed.The results show that the lower the water cement ratio, the higher the semi-adiabatic tempera-ture rise and its rising rate.The semi-adiabatic condition accelerated increasing rates of compressive strength, whose levels depend on water cement ratios.