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Polymer Modified Asphalt
Today’s increasing loads, greater traffic volume and the need for better, longer-lasting roads demand better service from paving materials. Asphalts modified with ULTRAPAVE® SBR Latex Polymers offer the best method of improving binders for highway, street and airport paving and maintenance projects. ULTRAPAVE® SBR Latex Polymers were created specifically for modifying asphalt binders. ULTRAPAVE® SBR easily blends with the asphalt to form a homogenous reinforced composite.
ULTRAPAVE® SBR Polymers provide:
- Optimized visco-elastic properties
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- Increased resistance to rutting and shoving
- Increased resistance to low temperature cracking
- Increased resistance to load-associated fatigue cracking
- Reduced temperature susceptibility
- Reduced reflective cracking
- Minimized aging effects
- Reduced stripping and raveling
ULTRAPAVE® SBR Latex Polymers contain emulsion polymerized random copolymers of styrene and butadiene in a water-based system. In latex form, the SBR particles are extremely small (averaging .5 microns), exposing a very high surface area to the asphalt for complete mixing. As a result, the physical dispersion of the polymer particles is rapid and thorough.
(FOR POLYMER MODIFIED ASPHALT AND ANIONIC POLYMER MODIFIED ASPHALT EMULSION APPLICATIONS)
Heat and mechanical agitation with time produce a homogenous blend of polymer in the asphalt. As the latex is added, the polymer particles swell from the heat and solvating effects of the resins and oils in the asphalt. A micro-network forms with the polymer producing enhanced rheological properties.