Method for producing damping porous denoise tunnel asphalt covering material
An asphalt surface layer and damping technology, which is applied in the field of material science and engineering, can solve the problems of uncontrollable combustion of liquid combustion materials such as gasoline, no control effect on tunnel vehicle fires, and lower limit oxygen index of flame-retardant asphalt, so as to achieve enhanced structural durability Performance and noise reduction, reduce casualties and economic losses, reduce the effect of fire hazards
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Embodiment 1
[0026] A method for preparing a damping porous noise-reducing tunnel asphalt surface material, which comprises the following steps:
[0027] 1) Preparation of high-viscosity and high-elasticity modified asphalt: high-viscosity and high-elasticity modified asphalt is composed of base asphalt, modifier SBS, activated rubber powder, viscosifying compatibilizer, antioxidant and stabilizer, according to each component The mass ratio is base asphalt: modifier SBS: activated rubber powder: thickening compatibilizer: antioxidant: stabilizer = 100: 6.0: 20.2: 1.2: 0.2: 0.4, select base asphalt, modifier SBS, Activated rubber powder, thickening compatibilizer, antioxidant and stabilizer, spare;
[0028] Firstly, the melted matrix asphalt and the modifier SBS are put into the colloid mill for grinding, after one cycle, the viscosifying compatibilizer, antioxidant and stabilizer are added, and the grinding is continued for 3 cycles, the temperature is controlled at 150°C, and then Put th...
Embodiment 2
[0043] A method for preparing a damping porous noise-reducing tunnel asphalt surface material, which comprises the following steps:
[0044] 1) Preparation of high-viscosity and high-elasticity modified asphalt: high-viscosity and high-elasticity modified asphalt is composed of base asphalt, modifier SBS, activated rubber powder, viscosifying compatibilizer, antioxidant and stabilizer, according to each component The mass ratio is base asphalt: modifier SBS: activated rubber powder: thickening compatibilizer: antioxidant: stabilizer = 100: 12.4: 29.1: 2.6: 0.7: 0.8, select base asphalt, modifier SBS, Activated rubber powder, thickening compatibilizer, antioxidant and stabilizer, spare;
[0045] Firstly, the melted matrix asphalt and the modifier SBS are put into the colloid mill for grinding, after one cycle, the viscosity-increasing compatibilizer, antioxidant and stabilizer are added, and the grinding is continued for 4 cycles, the temperature is controlled at 170°C, and the...
Embodiment 3
[0061] A method for preparing a damping porous noise-reducing tunnel asphalt surface material, which comprises the following steps:
[0062] 1) Preparation of high-viscosity and high-elasticity modified asphalt: high-viscosity and high-elasticity modified asphalt is composed of base asphalt, modifier SBS, activated rubber powder, viscosifying compatibilizer, antioxidant and stabilizer, according to each component The mass ratio is base asphalt: modifier SBS: activated rubber powder: thickening compatibilizer: antioxidant: stabilizer=100: 18.3: 45.7: 3.7: 1.4: 1.9, select base asphalt, modifier SBS, Activated rubber powder, thickening compatibilizer, antioxidant and stabilizer, spare;
[0063] Firstly, the melted base asphalt and the modifier SBS are put into the colloid mill for grinding, after one cycle, the viscosifying compatibilizer, antioxidant and stabilizer are added, and the grinding is continued for 6 cycles, the temperature is controlled at 180°C, and then Pass the ...
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