INVESTIGATION OF DEMAND-SUPPLY CONDITION AND ENVIRONMENTAL IMPACT EVALUATION OF TRANSPORTATION LOAD ON AGGREGATE FOR BUILDING CONCRETE

Abstract

As for the conditions of building construction in Japan, the environmental impact of transportation on building materials and components would have been remarkable issues in addition to the natural resource depletion issues recently. In this research, regarding the huge amount of concrete aggregate which was carried into Tokyo metropolitan area, the demand-supply conditions and the carried distance from aggregate digging area were examined, and finally the environmental impact of transportation load by truck or ferry on aggregate for building concrete was evaluated by the amount of ton-kilometer values and the amount of carbon dioxide emission.