PAVEMENT BONDING MATERIAL, PREPARATION PROCESS OF PAVEMENT BONDING MATERIAL, MODIFIER FOR PAVEMENT BONDING MATERIAL AND ITS PREPARATION PROCESS

摘要

PROBLEM TO BE SOLVED: To provide a pavement bonding material variety of which material can be prepared in a preparation line in a short period of time and to provide a preparation process of the pavement bonding material, a modifier to prepare the pavement bonding material and a preparation process of the modifier.;SOLUTION: A base bonding material is prepared by grinding and mixing a straight asphalt and a styrene/butadiene/styrene block copolymer (SBS) of an average molecular weight of 150,000 with a mill 12 and dissolving it uniformly in a preparation tank for a short period of time. Simultaneously, a modifier is prepared by dissolving an SBS of an average molecular weight of 250,000 in an aromatic oil at 160°C to 180°C. Then, a pavement bonding material is completed by mixing the modifier with the base bonding material. Various pavement bonding materials can be prepared by changing the amount of the modifier to mix.;COPYRIGHT: (C)2003,JPO