Modified road asphalt and preparation method thereof
A road asphalt and modification technology, applied in building components, building insulation materials, buildings, etc., can solve the problems of poor high temperature resistance, high SBS seepage, poor waterproofness, etc., and achieve enhanced heat storage performance and temperature resistance. , Prevent road cracking and enhance the effect of firmness
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[0013] Example 1
[0014] In the reaction tank, first heat 80kg of asphalt to 110°C to dissolve and flow, then add 15kg of SBS, 1kg of waste tire rubber powder and 3.5kg of polyethylene glycol to the asphalt, stir and mix for 2 hours, after uniform mixing, add Sulphur 0.5kg, continue to stir, after the above mixture is mixed uniformly, stop stirring, place at 150 ° C for 2 hours to complete the cross-linking reaction, and then cool to obtain the modified road asphalt product 1 of the present invention.
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[0015] Example 2
[0016] In the reaction tank, first heat 85kg of asphalt to 130°C to dissolve and flow, then add 10kg of SBS, 0.5kg of waste tire rubber powder and 4kg of polyethylene glycol to the asphalt, stir and mix for 2 hours, after uniform mixing, add Sulphur 0.5kg, continue to stir, after the above mixture is mixed uniformly, stop stirring, place at 150 ° C for 2 hours to complete the cross-linking reaction, and then cool to obtain the modified road asphalt product 2 of the present invention.
Example Embodiment
[0017] Example 3
[0018] In the reaction tank, 83kg of asphalt was heated to 130°C to dissolve and flow, then 11kg of SBS, 0.5kg of waste tire rubber powder and 3.8kg of polyethylene glycol were added to the asphalt, stirred and mixed for 2 hours, and after uniform mixing, Add 0.2 kg of sulfur, continue stirring, stop stirring after the above-mentioned mixed materials are evenly mixed, place at 150° C. for 2 hours to complete the cross-linking reaction, and then cool to obtain the modified road asphalt product 3 of the present invention.
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