The Study of Trial-mix Strength Calculation Equation of C60 Concrete under Certain Steam Curing Schedule

摘要

This article selects raw materials from different areas to design C60 concrete, based on JGJ55-2011 Specification for mix proportion design of ordinary concrete. The specimens are cured under standard curing schedule and steam curing schedule, respectively. Compressive strengths of requirement age are tested. The result shows that the compressive strengths under steam curing schedule are lower than that under standard curing schedule, and the difference value is about 8MPa. Knowing the trial-mix strength calculation equation of C60 concrete under standard curing schedule, the relationship between the two kinds of curing schedules is analyzed, and then the trial-mix strength calculation equation of C60 concrete under the steam curing schedule is found.