| 摘要 |
FIELD: production of building materials. SUBSTANCE: roofing and hydroinsulating material comprises fibrous substrate, bituminous binder thereonto, and layer of grit strewn on top. Bituminous binder comprises the following components, wt.-%: bitumen, 43-80; petroleum oil, 2-15; mineral filler, 10-24; polymeric additive, 0.5-25. As a polymeric additive, use can be made of comminuted rubber, polyethylene or mixture thereof. Material features thermal stability at temperature from 75 to 123 C, frost resistance from minus 5 C up to minus 20 C, and strength, from 75 to 120 kg. EFFECT: higher properties. |
