コンクリートのひび割れ深さの推定に関する基礎的実験

概要

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A large amount of concrete have been used for infrastructures and it is estimated that the full-dress repair works of concrete will be coming and the efficient maintenance methodology for these stocks should be needed in the future.This study aims at developing the estimate system of crack depth by measuring the drying speed of concrete surface. First,RC beam was made and loaded to generate the cracks with bending. Second,the drying speeds of concrete surface including crack area were measured by changing the test parameters,such as the crack width and depth,the temperature,the relative humidity and the wind speed. By using the multiple regression analysis,the crack depth was related with the drying speeds,the crack width,the temperature,the relative humidity and the wind speed and expressed with these parameter. Therefore,it concluded that the crack depth could be predicted by measuring the drying speed.
関東学院大学工学部工学会の論文