| 摘要 |
FIELD: building industry. ^ SUBSTANCE: invention relates to road-building materials, in part, to binding material and can be used in road building and also, for example, in building roofing, waterproofing as hermetic sealing material. Binding material comprises the following components: bitumen, 30.0-97.9 wt.-%; plasticizer, 2.0-40.0 wt.-%, and 0.1-30.0 wt.-% of polymeric product based on block-polymer of type A-B-A and/or block-copolymer of type (A-B)nX wherein A means vinylaromatic monomer with molecular mass from 8 000 to 16 000 Da; B means coupled diene polymeric block with molecular mass from 30 000 to 70 000 Dal n is a whole number from 2 to 4; and maleinized polybutadiene comprising from 10 to 24 wt.-% of maleic anhydride and having molecular mass from 1 200 to 4 000 Da wherein the mass ratio of named block-copolymer and named maleinized polybutadiene = 100:(10-20). Invention provides the development of material of high adhesion to any mineral materials, among them to mineral materials used really in road building and eliciting physical-mechanical properties, among them crack resistance, heat stability, elasticity at level of modern requirement under any exploitation conditions and eliciting viscosity comparable with viscosity of bitumen being without increase content of polymer that is disadvantageously economically. ^ EFFECT: improved, enhanced and valuable properties of material. ^ 5 cl, 6 ex |
