Brizol (bitumen-rubber insulation) are prepared from crushed waste vulcanized rubber, bitumen, asbestos fibers, plasticizers, vulcanizing agents.
Composition is selected depending on the characteristics of the raw materials, but the approximate percentage composition Brizol follows: Bitumen - up to 60%, rubber - to 30%, plasticizer - 2-5%, up to 12% asbestos.
Proposed several tracks Brizol (percent by weight), which are recommended as plasticizers ozokerite, green oil, petrolatum, polyisobutylene brand P-20, etc.
Grades Brizol differ primarily in the mechanical strength, flexibility and heat resistance. But compared to the waterproofing Brizol is chemical resistant and water. Thus, the studies found that if vodonasyschaemost waterproofing for 30 days was 13.6% and the tensile strength it fell during this period by 3 times, then Brizol over the same period of observation had vodonasyschaemost only 1.03% and the strength to be maintained at the same level.
Compared with waterproofing materials on pure bitumen Brizol has increased rot and water resistance, high weathering resistance, water resistance, hardiness and resilience. This material is used in the protection of pipelines, underground structures from the effects of ground water, etc. In particular, it is used in waterproofing basements of industrial and residential buildings, protect the brick and concrete sewers, sanitary facilities and with a soft and flat roofs.
|