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http://dx.doi.org/10.4334/JKCI.2007.19.2.179

An Experimental Study on the Application of Measuring Method of Water Content for Quality Control of Concrete  

Kim, Yong-Ro (Architectural Research and Engineering of Technology Research Institute, Daelim Industrial Co., Ltd.)
Choi, Il-Ho (Architectural Research and Engineering of Technology Research Institute, Daelim Industrial Co., Ltd.)
Jung, Yang-Hee (Architectural Research and Engineering of Technology Research Institute, Daelim Industrial Co., Ltd.)
Lee, Do-Bum (Architectural Research and Engineering of Technology Research Institute, Daelim Industrial Co., Ltd.)
Publication Information
Journal of the Korea Concrete Institute / v.19, no.2, 2007 , pp. 179-188 More about this Journal
Abstract
Recently, the concern on the receipt of poor ready-mixed concrete in the construction field and the durability of concrete has been increased. Based on the such background, a large number of measuring methods of water content for fresh concrete have been developed and enforced in a developed country. In this study, to investigate practicality for quality control of ready-mixed concrete among various water content measurement techniques, microwave range method, air meter method and capacitance measurement method as measuring methods of water content were selected. Then, it was evaluated estimating performance of water content according to the change of binder types, fine aggregate types, absorption ratio, water content and water-binder ratio in series I and II. Also, it was examined influence on error occurrence of water content according to change of properties of used materials in series III. Finally, based on this study, it was proposed fundamental data to utilize measurement technique of water content to quality control of ready-mixed concrete in construction field.
Keywords
water content; quality control; microwave range method; air meter method; capacitance measurement method;
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