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Title |
An Experimental Study on the Application of Measuring Method of Water Content for Quality Control of Concrete
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Keywords |
단위수량 ; 품질관리 ; 전자레인지법 ; 에어메터법 ; 정전용량법 |
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Abstract |
Recently, the concern on the receipt of poor ready-mixed concrete in theconstruction 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 readymixed 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 examinedinfluence 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.
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