콘크리트 도상에서의 크랙 현상
* Crack Cause and its Countermeasures for Ballastless Track Concrete The condition of concrete crack is that the tension stress generated by deforming under restraint is bigger than its strength of extension, and then the crack happens. Therefore, the condition influencing the concrete crack inclludes the deformation size, the degree of restraint, and the realtime strength of extension. The exp..