Abstract
The apartment housing structure system which organizes main stream of domestic dwelling pattern has developed and been changed variously according to the periodical changes. At the early stage of apartment instruction, it was the rahmen structure to apply a masonry wall but at present, reinforced concrete bearing wall method organizes the main stream. The reinforced concrete bearing wall method had strength that construction know-how has been accumulated, but shows weakness that it was restricted by remodeling and could not respond the needs of customer seeking a changeability of plane properly. Recently, the apartment housing of RC bearing wall method shows social problems because its average life span was 30-35 years on being early reconstruction by the early deterioration. Because of the reconstruction caused by various needs of customers and early deterioration, it was increases lots of construction waste, $CO_2$ emission, etc. So, this study intends to select the site applying RC bearing wall method and extruded concrete panels method among the current sites of apartment housing, analyzed quantity of construction waste, and it calculated the dealing cost and $CO_2$ emission by construction wastes. Therefore, it analyzed the effect of the reduction of construction wastes by applying the extruded concrete panels in an flat plate apartment housing construction.