摘要
在分析成熟度概念基础上引入等效龄期代替成熟度,基于双曲线模型将混凝土活化能作为变量(传统方法为常量)推导了新的混凝土抗压强度与等效龄期的关系模型,给出了最终抗压强度、混凝土活化能变量参数k、初期等效龄期的确定方法,为研究成熟度对混凝土早期力学性质的影响有一定现实意义。
In the actual concrete structure design, compressive strength is the most important and available. Based on maturity theory, the change of concrete activation energy is considered in concrete compression model. Then maturity-compressive strength is deduced and improved. This model is verified through examples. According to the experience relationship between compression strength and elastic modulus, the formula of elastic modulus considered the effect of maturity is deduced. For further studying on the effect of maturity to early mechanical characteristics of concrete,this work is of certain theoretical significance.
出处
《水电能源科学》
北大核心
2009年第5期166-168,共3页
Water Resources and Power
关键词
混凝土
成熟度
等效龄期
混凝土活化能
抗压强度
concrete
maturity
equivalent age
concrete activation energy
compressive strength
