APPARTUS GUIDING CREVICE FOR CONCRETE SPECIMEN PREPARATION FOR EVALUATING CRACK SELF-HEALING PERFORMANCE AND CREVICE GUIDING METHOD USING THE SAME

摘要

The present invention relates to a crack induction device for producing a concrete test body for crack self-healing performance evaluation and a crack induction method using the same. The crack inducing device for the production of concrete specimens for the evaluation of the crack self-healing performance of the present invention is to produce a specimen of a concrete specimen size (diameter 100 mm×200 mm), a crack groove inducing accessory inside the cylindrical mold and a crack at the end of the crack groove inducing accessory It is a crack inducing device incorporating an induction accessory, and concrete can be poured into the crack inducing device, and after a certain age, the cylindrical mold is dismantled, and the generated crack can be fixed to produce a test body. Therefore, since it has a constant crack width and repeatability in the specimen, it is useful for evaluating the performance of self-healing of concrete cracks.