Modified asphalt and preparation process thereof
A technology of modified asphalt and preparation process, applied in building components, building insulation materials, construction and other directions, can solve the problems of heavy environmental pollution, poor compatibility, bag lifting, etc., and achieve the effect of good durability and strong bearing capacity
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Embodiment 1
[0013] A modified asphalt, made of the following components by weight: modified asphalt activator 6-10, petroleum asphalt 90-94, wherein the modified asphalt activator is made of the following components by weight: rubber heavy oil 75-89, modified carbon black 3-7, catalyst 3-7, activator 2-6, surfactant 3-5.
[0014] Preferably, it is made of the following components by weight: modified asphalt activator 7, petroleum asphalt 93, wherein the modified asphalt activator is made of the following components by weight: rubber heavy oil 85, modified carbon black 4 , Catalyst 4, Activator 3, Surfactant 4.
[0015] The catalyst is at least one of p-toluenesulfonic acid, 4-dimethylaminopyridine, dicumyl peroxide and polyether polymethylol compounds, and the activator is 2,2-disulfide bis(6 -tert-butyl p-phenol), the surfactant is a mixture of phenol and sodium hydroxide solution, wherein the volume ratio of phenol to sodium hydroxide solution is 10:1, and the concentration of sodium h...
Embodiment 2
[0018] A kind of modified asphalt is made of the following components by weight: 6 parts of modified asphalt activator, 94 parts of petroleum asphalt, wherein the modified asphalt activator is made of the following components by weight: rubber heavy oil 75 Parts, 7 parts of modified carbon black, 7 parts of catalyst, 6 parts of activator, 5 parts of surfactant.
[0019] The preparation process of the modified asphalt of the present invention is as follows: according to the above parts by weight, blend and stir rubber heavy oil, modified carbon black and catalyst, then add an activator to react for 10 hours, then add a surfactant, and after stirring, the modified asphalt is obtained. Finally, blend and stir with petroleum asphalt, and heat up to 180°C under stirring to obtain modified asphalt.
Embodiment 3
[0021] A kind of modified asphalt is made of the following components by weight: 10 parts of modified asphalt activator, 90 parts of petroleum asphalt, wherein the modified asphalt activator is made of the following components by weight: rubber heavy oil 89 3 parts, 3 parts of modified carbon black, 3 parts of catalyst, 2 parts of activator, 3 parts of surfactant.
[0022] The preparation process of the modified asphalt of the present invention is as follows: according to the above parts by weight, blend and stir rubber heavy oil, modified carbon black and catalyst, then add an activator to react for 10 hours, then add a surfactant, and after stirring, the modified asphalt is obtained. Finally, blend and stir with petroleum asphalt, and heat up to 160°C under stirring to obtain modified asphalt.
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