A Model for Temperature Infl uence on Concrete Hydration Exothermic Rate (Part one: Theory and Experiment)
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2014年第3期
论文作者：朱振泱 QIANG Sheng CHEN Weimin
文章页码：540 - 545
摘 要：Recent achievements in concrete hydration exothermic models based on Arrhenius equation have improved computation accuracy for mass concrete temperature fi eld. But the properties of the activation energy and the gas constant(E a /R) have not been well studied yet. From the latest experiments it is shown that E a /R obviously changes with the hydration degree without fixed form. In this paper, the relationship between hydration degree and E a /R is studied and a new hydration exothermic model is proposed. With those achievements, the mass concrete temperature fi eld with arbitrary boundary condition can be calculated more precisely.
朱振泱1，QIANG Sheng2，CHEN Weimin1
1. Hydrochina Huadong Engineering Corporation2. College of Water Conservancy and Hydropower Engineering, Hohai University
摘 要：Recent achievements in concrete hydration exothermic models based on Arrhenius equation have improved computation accuracy for mass concrete temperature fi eld. But the properties of the activation energy and the gas constant(E a /R) have not been well studied yet. From the latest experiments it is shown that E a /R obviously changes with the hydration degree without fixed form. In this paper, the relationship between hydration degree and E a /R is studied and a new hydration exothermic model is proposed. With those achievements, the mass concrete temperature fi eld with arbitrary boundary condition can be calculated more precisely.
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