영어 한마디

콘크리트 도상에서의 크랙 현상

기차니 2009. 4. 22. 08:42

* 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 expansion energy of old crack is far smaller than that of newly generated crack, so the main solution for preventing concrete crack is to control concrete crack in early stage.