CURRENT STATUS OF BUILDING MATERIALS FOR RECYCLING IN JAPAN AND STUDY OF THEIR EVALUATION METHODS

摘要

The present paper discusses contemporary building materials and the use of industrial byproduct building materials, and describes building materials recycling in Japan. A survey of current literature and a questionnaire provided to major building-materials associations were completed, and quantity data was collected to evaluate information including the amount of materials; the volume of production and shipment; amount of discharge and recovery of end materials (from production, construction, and demolition); and, recycling methods. The building materials targeted by the present study are gypsum board, particle board, fiberboard, glass wool, tiles, etc. The material flow was established based on the questionnaire results, and the features and problems of recycling each type of material were examined.