| 摘要 |
FIELD: road-building. SUBSTANCE: mastic that can be used for restoration of pavements contains, wt %: bitumen BNK 90/40, 51.0-85.5; rubber crumb, 7.0-15.0; plasticizer (crude bitumen), 7.0-30.0; and ethanolamine, 0.5-4.0. EFFECT: extended assortment of road-building mastics, increased elasticity more than twice, and increased rupture strength by five and more times. 1 tbl |
