Modified bitumen waterproof membrane compound, modified bitumen waterproof membrane compound, preparation method and application thereof
A waterproof membrane and modified asphalt technology, which is applied in the direction of asphalt material adhesives, adhesives, adhesive types, etc., can solve the problems of easy generation of a large number of pores, low temperature cracking resistance and poor bonding performance, and achieve excellent Effect of heat aging low temperature performance, short modification time and low modification temperature
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preparation example 1
[0064] Preparation Example 1: Preparation of compound asphalt I
[0065] (1) The 50# asphalt is treated as a de-lighting component to obtain the de-lightening asphalt;
[0066] The conditions of the de-lighting component treatment are: the speed of agitation is 1400rpm, the starting temperature is 130 °C, the heating rate is 2 °C / min, and the termination temperature is 160 °C;
[0067] (2) In the presence of oxygen, the conditions for dewaxing treatment of the desurfaceous asphalt are controlled, and the dewaxing asphalt with a wax content of 1.2wt% is obtained;
[0068]The conditions of the dewaxing treatment are: stirring speed 1400rpm, temperature of 270 °C, time 2.5h;
[0069] (3) The dewaxed asphalt is mixed with the 10# asphalt to give the compound asphalt I;
[0070] The mixing conditions are: the speed of agitation is 1400rpm, the temperature is 175 ° C, the time is 50min;
[0071] The amount-to-weight ratio of 10# asphalt and 50# asphalt in the compound asphalt I is 1:7...
preparation example 2
[0072] Preparation Example 2: Preparation of compound asphalt II
[0073] (1) The 50# asphalt is treated as a de-lighting component to obtain the de-lightening asphalt;
[0074] The conditions of the de-lighting component treatment are: the speed of agitation is 1300rpm, the starting temperature is 130 ° C, the heating rate is 2 ° C / min, the termination temperature is 240 ° C;
[0075] (2) In the presence of oxygen, the conditions for controlling the desurfaceting asphalt for dewaxing treatment are controlled, and the dewaxing asphalt with a wax content of 0.9wt% is obtained;
[0076] The conditions of the dewaxing treatment are: the speed of agitation is 1300rpm, the temperature is 260 ° C, and the time is 2h;
[0077] (3) The dewaxed asphalt is mixed with the 10# asphalt to give the compound asphalt II;
[0078] The mixing conditions are: the speed of agitation is 1300rpm, the temperature is 175 ° C, the time is 50min;
[0079] The weight ratio of 10# asphalt and 50# asphalt i...
preparation example 3
[0080] Preparation Example 3: Preparation of compound asphalt III
[0081] The present preparation example is carried out using the same process as preparation Example 1, the difference is that in this preparation example:
[0082] The conditions of the dewaxing treatment in step (2) are different, specifically, the speed of agitation is 1200rpm, the temperature is 240 °C, and the time is 1.5h; the dewaxing asphalt with a wax content of 2.1wt% is obtained.
[0083]To obtain compound asphalt III, the compound asphalt III in the dosage weight ratio of 10# bitumen and 50# asphalt is 1:7, the flash point is 245 ° C, the asphaltene content is 23.5wt.
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