POLYMER-MODIFIED ASPHALT ELASTIC AT NORMAL TEMPERATURE, ITS MANUFACTURING PROCESS, FORMULATED LIQUID, PAVEMENT MATERIAL OF THE ASPHALT AND CONSTRUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a polymer-modified asphalt elastic at normal temperature that is suitable for use in the pavement of an upper layer pavement such as a joint in a road and a part of a paved road to be repaired, improves their durability and also suitable for use as an underground impervious material and a roofing material and in bonding tiles in a tunnel and in use in a cold district.;SOLUTION: A rubbery cured material is obtained by mixing a silyl-terminated polyether, a catalyst for promoting its rubbery hardening, an epoxy resin, its hardener and a straight asphalt. The material is mixed with aggregate to obtain a pavement material. A mixture of an organostannic compound and phthalic acid bis is suitable for the catalyst. A polyamine is suitable for the hardener, when a bisphenol A epoxy resin is used for the epoxy resin. The epoxy resin and the hardener are put together in liquid A and the silyl-terminated polyether and the catalyst in liquid B to avoid hardening before use. These liquids are mixed upon use.;COPYRIGHT: (C)2004,JPO