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Title |
Equipment for Measuring the Adiabatic Temperature Rise of Concrete by Compensating Heat Loss
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DOI |
https://doi.org/10.4334/JKCI.2012.24.5.535 |
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Keywords |
간이 수화열 측정 장치 ; 수화열 ; 열손실 ; 단열온도상승 ; 대류계수 equipment for measuring semi-adiabatic temperature rise ; heat of hydration ; heat loss ; adiabatic temperature rise ; convection coefficient |
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Abstract |
Adiabatic temperature rise test for predicting heat of hydration in mass concrete is especially inconvenient in the field. In order to overcome the problem, the equipment to effectively and conveniently measure semi-adiabatic temperature change was developed. The main objective of this paper is to propose a new and simple equipment for measuring semi-adiabatic temperature rise by using insulation bottles. In order to predict exact heat loss of concrete using this device, it is required to assume the specific heat loss coefficient of the device by water temperature change inside the experimental device. According to experimental and analytical results, the adiabatic temperature rise does not have significant differences in changes of temperature and humidity of air, as well as initial temperature of water. By comparing adiabatic temperature rise tests, the equipment for measuring semi-adiabatic temperature change can be used to predict the hydration heat of concrete within sufficient accuracy.
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