The additive of DOROS - T allows to reduce temperature of preparation and laying of hot asphalt concrete mix by 30 - 40 degrees, so allows to prolong a road - building season and to make laying of asphalt at a temperature up to - 15 degrees Celsius.
Unlike the foreign additives for "warm asphalt" based on use of the wax - like or water containing components, our additive contains the additives reducing viscosity of the bituminous mineral material knitting in monolayers on a surface in the course of asphalt consolidation and also contains surfactant at the expense of what provides almost 100% adhesion of bitumen to mineral material.
The bitumen containing 0,8% of an additive of DOROS - T was used for preparation of asphalt - concrete mix of type "B", in laboratory GKU YaO "Yardorsluzhba". Tests in accordance with GOST 9128 - 2009 showed that this mix condensed at a temperature of 100 degrees does not differ on quality indicators from the mix prepared at a temperature of 145 degrees.
The additive of DOROS - T remains liquid even at negative temperatures and is easily dissolved in bitumen.
As a result of introduction of an additive of DOROS - T the coefficient of a superficial tension of bitumen changes, the crushed stone obvolakivayemost improves, its ability to be condensed under the influence of a skating rink improves.
Rise in price of 1 ton of asphalt with our additive is 3 times less, than when using import analog: additives Evotherm - 1J.