Waste rubber powder modified asphalt composition for increasing storage stability and preparation method thereof
A technology of modified asphalt and composition, which is applied in the direction of building structure, building components, building insulation materials, etc. It can solve the problems of complex process, deterioration of asphalt properties, unfavorable production, etc., and achieve simple ingredients, low production cost, and high production The effect of simple method
Active Publication Date: 2008-03-19
FUSHUN RES INST OF PETROLEUM & PETROCHEMICALS SINOPEC CORP
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The invention provides a rubber modified asphalt composition for improving storage stability and a method for preparing the same. Firstly, one or more liquid additives are used to spray the rubber powders, and then the treated waste rubber powders are added into basic asphalt. At appropriate temperature, the rubber powder modified asphalt of the invention can be obtained after treated by high shearing or colloid grinding equipments for a while. The method provided by the invention not only has a simple technology and obviously improves the stability of the rubber powder modified asphalt, and the prepared modified asphalt has good high-and-low temperature performance.
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Property | Measurement | Unit |
Softening point | 55.0 | °C |
Extensibility | 22.0 | cm |
Softening point | 58.5 | °C |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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