| 摘要 |
<p>A bitumen-rubber composition consists of the following components in per cent by weight: oil bitumen 30.0 - 89, disintegrated vulcanized rubber 10.0 - 60, plastifier - a by-product of the production of cellulose by the sulphate method or the saponificated residue of rectification of tall oil 0.5 - 5, structurizing admixture - a by-product of the production of caprolactam from benzol, containing 11 - 22% of the sodium salt of adipic acid 0.5 - 5. A method of obtaining the bitumen-rubber composition comprises mixing the oil bitumen and disintegrated vulcanized rubber, heating the mixture, keeping it at a temperature of 220 - 250°C, introducing into the obtained mixture a plastifier and a structurizing admixture and obtaining the desired product.</p> |
