Roadphalt rubber powder modified asphalt
First. Products
Roadphalt rubber powder modified asphalt is the original quality of processing of the first scrap tire rubber powder, and then a certain proportion of the thickness of the graded combinations, while adding a variety of high polymer modifiers, and adequate mixing of the high temperature conditions (180 ° C or above) the swelling reaction after the formation of fully asphalt modified asphalt cement materials. Lu Feite Crumb Rubber Modified Asphalt with high temperature stability, low temperature flexibility, aging resistance, fatigue resistance, resistance to water damage such performance is an ideal environmentally friendly pavement material, mainly used in the stress in the road structure absorption layer and the surface layer.
Second, the performance characteristics
A strong high-temperature stability.
2, the rubber asphalt low temperature flexibility and low temperature cracking capability is very prominent. Rubber powder can significantly increase the viscosity of the bitumen, which significantly improved asphalt resistance to high temperature deformation.
3, a prominent anti-aging and deformation resistance: Rubber tires contain a large number of anti-aging agents, including antioxidants, heat stabilizers, change the price of metal inhibitors, UV absorbers and light shielding is very effective carbon black fillers after joining the rubber powder rubber asphalt has a strong anti-aging properties, while the rubber asphalt mixture which has a thick binder film will significantly improve the aging resistance of the pavement.
Third, the rubber asphalt technology indicators
Reference to the technical specifications of the USA and Asia the Arizona, Roadphalt Crumb Rubber Modified Asphalt in line with the following technical of standard:
Project
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Requirements
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Viscosity, 177 ° C, Pa.S
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1.5-5.0
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Penetration (4 ° C, 100g, 5 s) 0.1mm
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≥15
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Softening point, ℃
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≥54
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Spring rate, 25 ° C
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≥60
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The picture shows the rubber asphalt stress-absorbing layer