Preparation method of composite modified asphalt convenient for post cleaning
A technology of composite modified asphalt and modified asphalt, which is applied in the direction of building components, building insulation materials, buildings, etc., can solve the problem of high temperature, low temperature, elastic recovery of modified asphalt that cannot meet the technical requirements of ultra-thin wear layer and road performance Poor, poor sealing effect and other problems, to achieve the effect of prolonging the service time of the road surface, improving the strength of the sealing layer, and excellent road performance
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[0013] The technical solutions of the present invention will be further described below through specific examples.
[0014] A method for preparing composite modified asphalt that is convenient for post-cleaning is carried out according to the following steps:
[0015] Step 1, first heating asphalt and mineral oil to 60-100°C, adding 20-40 parts by weight of a surfactant into the asphalt, and stirring for 10-30 minutes to obtain modified asphalt;
[0016] Step 2, heating the water to 40-60°C, then sequentially adding modifier, blending agent and emulsifier into the water, stirring for 5-10 minutes to obtain mixed soap;
[0017] Step 3: Mix the modified asphalt prepared in step 1 and the mixed soap liquid prepared in step 2 and mechanically stir for 30-40 minutes at a stirring temperature of 80-100°C. After stirring evenly, cool down to 20-25°C to obtain a cationic composite modified asphalt. Sexual asphalt.
[0018] Material addition is shown in the table below in each embodi...
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