초록 close

Fundamentally, it is difficult to pick out a exposed concrete due to the economical limitation such as increase of a construction expense for a requirement of accurate mold construction. Also, in the construction technology aspect, exposed concrete is different from architectural concrete. Exposed concrete is a method of construction which is needed a considerable accumulation of technology. Therefore, the lack of awareness about this is causing many problems because of a material shortage, a proportion source imperfection and an inferiority of work. Consequently, studying the problems of exposed concrete and its induced reason based on the construction material and the maintenance control, we have come to conclusion as follow.1. Exposed concrete has many problems such as a strength lowering, a crack, the rust stain, a leaking from the crack and a color stain would occur frequently. Moreover, it is analyzed that a very complex factor causes these kinds of problems.2. The main factor, which bring about the construction problem were the badness of mold assembly, placing of concrete plan, the excessive hardening the ground and high W/C of concrete. The maintenance control and the imperfect construction plan however, did not give so much effect of that problem.3. We have looked into the problem and the induced reason collectively. Then, we got to know that we better go over these problems like a mold construction, a concrete construction, and a steel reinforcing assembly by and large. Moreover, a consideration of the maintenance control and an assurance of an appropriate quality should be considered. So, we developed the procedure, classified into 3 steps for a quality assurance. Then, based on these steps, each process check-list was made.