Compatible Datum Temperature and Activation Energy for Concrete Maturity
作者: Chang Hoon Lee Kenneth C. Hover
刊名: Materials Journal, 2016, Vol.113 (2)
来源数据库: American Concrete Institute
关键词: activation energyconcrete strengthdatum temperaturemathematical modelingmaturityphysical chemistrytemperature effects
原始语种摘要: Maturity methods are used to predict strength or other mechanical properties of a concrete mixture for a given moisture availability as a function of time and temperature. Temperature sensitivity of a mixture is characterized by datum temperature for the Nurse-Saul (NS) method, and by activation energy for the Freiesleben-Hansen and Pederson method (FHP). While these methods and their defining parameters were independently developed, the parameters are nevertheless interdependent, as a change in a concrete mixture that affects temperature sensitivity as expressed by datum temperature will also be reflected in a change of activation energy, and vice versa. This paper addresses the temperature- and mixturedependent relationship between datum temperature and activation energy, using both a...
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  • Energy 能量
  • temperature 温度
  • datum 基准面
  • kinetics 动力学
  • relationship 关系
  • chemical 化学的
  • values 价值观
  • equation 方程
  • solution 溶液
  • given 已知的