Special modified bitumen, seam tape and preparation method and use method thereof
A technology of modified asphalt and pressure seam tape, which is applied in the direction of building components, pavement details, building insulation materials, etc., can solve the problems of poor low temperature performance and insufficient high temperature performance of pressure seam tape, and achieve simple operation, wide development and application Prospects, effect of good low temperature extensibility
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Embodiment 1
[0022] Embodiment 1: this special modified bitumen, raw material comprises 100 parts by weight of base pitch, 8 parts to 15 parts of furfural, 8 parts to 12 parts of SBS modifier, 1 part to 1.5 parts of sulfur and 8 to 15 parts of montmorillonite powder; the special modified asphalt is obtained according to the following steps: the first step is to preheat the required amount of base asphalt, and the preheating temperature is 130°C to 140°C, and the preheated Continue to heat the heated base asphalt to 180°C to 185°C, add the required amount of furfural to the heated base asphalt and stir to obtain a stirred liquid; the second step is to add the required amount of SBS to the stirred liquid Modifier and stirred to obtain a swelling liquid, wherein: the stirring temperature is 180°C to 185°C, and the stirring time is 3.5 hours to 4.5 hours; the third step is to add the required amount of sulfur to the swelling liquid and stir to obtain Stabilizing liquid; in the fourth step, the...
Embodiment 2
[0023] Embodiment 2: this special modified asphalt, raw material comprises 100 parts by weight of base pitch, 8 parts or 15 parts of furfural, 8 parts or 12 parts of SBS modifier, 1 part or 1.5 parts of sulfur and 8 parts or 15 parts of montmorillonite powder; the special modified asphalt is obtained according to the following steps: the first step is to preheat the required amount of base asphalt, the preheating temperature is 130 ° C or 140 ° C, the preheated Continue to heat the heated base asphalt to 180°C or 185°C, add the required amount of furfural to the heated base asphalt and stir to obtain a stirring liquid; the second step is to add the required amount of SBS to the stirring liquid Modifier and stirred to obtain a swelling liquid, wherein: the stirring temperature is 180°C or 185°C, and the stirring time is 3.5 hours or 4.5 hours; the third step is to add the required amount of sulfur to the swelling liquid and stir to obtain Stabilizing liquid; in the fourth step,...
Embodiment 3
[0024]Embodiment 3: The difference from the foregoing examples is that the base asphalt is 90# Karamay asphalt; or / and, the SBS modifier is a linear structure SBS1301 modifier or SBST6302 modifier; or / and, the second In the first step, the SBS modifier is added to the stirring liquid at a speed of 125 kg / min to 200 kg / min; or / and, in the first step, the stirring speed is 55 rev / min to 60 rev / min; or / And, in the second step, the stirring speed is 55 rpm to 60 rpm; or / and, in the third step, the stirring speed is 55 rpm to 60 rpm; or / and, the fifth In step, the stirring speed is 55 rpm to 60 rpm
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Abstract
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