COVERED PLATE FOR PREVENTING CRACK WHEN CURING OF CONCRETE

摘要

By protruding a plurality of contact protrusions in the curved portion and installing the curved plate so that the contact protrusions are in close contact with the corner portions of the formwork, it is possible to prevent the occurrence of cracks starting at the corners of the openings. In particular, by forming the contact protrusions in a cylindrical shape with the minimum spacing, the area in which the contact protrusions contact the formwork before concrete pouring is maximized while minimizing the exposure of the contact protrusions to the outside after curing the concrete so that cracks can occur. Can be minimized. In addition, by forming two inlet holes through each of the two sides, the aggregate is pinched or strung between the formwork and the curved plate through the inlet hole, thereby resisting stress through these aggregates, thereby preventing load distribution, temperature change, and drying shrinkage. The resulting crack can be prevented.