Asphalt additive NovaPrene SK

for roadsoutdoor

In Türkiye, more than two-thirds of the asphalt roads in the area of responsibility of the General Directorate of Highways, municipalities and special provincial administrations are surface treatments. Surface treatment is commonly preferred because it is a fast and cost-effective solution on the roads where traffic density is lower. It is also known that the average life of surface treatment roads in our country is very short. There are many factors that determine the useful life of surface treatment roads. Product Description It is a block copolymer synthetic rubber that is made up of styrene-butadiene bonds. It is an easy-to mix, low-viscosity, polymer modified bitumen additive that gives homogeneous mixture and that has been developed for surface treatment applications made with hot bitumen. It is a styrene-butadiene (SB) based polymer modified bitumen additive with high molecular weight. When its polystyrene is added into bitumen, it gives hardness and polybutadiene gives flexibility. It has two components. First, Liquid NovaPrene P is added to bitumen. The bonds of asphaltene aggregates are broken and dispersed in the maltene phase. Then, NovaPrene SK is added to bitumen and the modification process is completed. It is used at 2.5- 3,0% ratio for bitumen. It is added to bitumen at 180 ºC and mixed for 2-3 hours in a mechanical mixer until polymer disappears completely. It is completely dissolved in bitumen. NovaPrene-P breaks the large asphaltene structure through the points where the bonds are weak, reduces the asphaltene molecular weight, disperses them in the maltene phase and helps with the formation of a continuous phase.