Strength Correction Value Of Concrete Using Low-Heat Cement In Term Of The Anticipated Mean Curing Temperature

摘要

The correction values of concrete strength in term of the anticipated mean outdoor air temperature or mean curing temperature of concrete using low-heat cement, such as portland fly-ash cement, moderate-heat cement portland cement are investigated based on the results of experiment. The relation between maturity and development of concrete strength in various temperature condition i.e. constant temperature, job site temperature following temperature in structure could be represented by a polygon consisted with three line and the age for proportioning strength of concrete could be established within 91 days, because the second polygon line and the third polygon lone intersect at about 3000D°D.