초기재령 콘크리트에서 부재 형태에 따른 건조수축 균열의 발생 위치 및 진행 패턴 연구
A Study on Crack Initiation and Propagation Patterns Due to Drying Shrinkage in Early-Age Concrete Elements with Different Shapes
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Abstract : This study aimed to analyze the formation of cracks caused by drying shrinkage in early-age concrete by experimentally investigating various types of structural members. Beam and slab models were employed to examine the effects of member geometry on crack development, while cement paste specimens with controlled width, length, and height ratios were subjected to forced drying to analyze crack formation patterns. Key parameters such as crack initiation points, crack widths, and crack openings were measured throughout the experimental period. The experimental results confirmed that crack geometry varies systematically with the specimen’s height, length, and shape. These findings indicate that the behavior of drying shrinkage cracks in early-age concrete can be better understood and effectively controlled by considering geometric ratios and surface area in the design of reinforced concrete members.
Abstract
Abstract : This study aimed to analyze the formation of cracks caused by drying shrinkage in early-age concrete by experimentally investigating various types of structural members. Beam and slab models were employed to examine the effects of member geometry on crack development, while cement paste specimens with controlled width, length, and height ratios were subjected to forced drying to analyze crack formation patterns. Key parameters such as crack initiation points, crack widths, and crack openings were measured throughout the experimental period. The experimental results confirmed that crack geometry varies systematically with the specimen’s height, length, and shape. These findings indicate that the behavior of drying shrinkage cracks in early-age concrete can be better understood and effectively controlled by considering geometric ratios and surface area in the design of reinforced concrete members.