Preparation method of special tourmaline modified asphalt for road paving
A technology of modified asphalt and tourmaline, applied in the field of building materials, can solve the problems of increased construction difficulty, poor interface compatibility, and inability to further improve the bonding force, and achieve the effect of improving surface roughness
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example 1
[0024]Put the tourmaline into the ball mill tank, and add zirconia ball mill beads according to the mass ratio of the ball to material at 40:1. At a speed of 500r / min, after ball milling and mixing for 6 hours, discharge the material, pass through a 30-mesh sieve, and collect the Granules to obtain tourmaline coarse powder; immerse tourmaline coarse powder in biogas slurry, soak for 5 hours at room temperature, filter to obtain No. 1 filter residue, and freeze No. 1 filter residue with liquid nitrogen for 30 seconds, then store Under natural thawing for 3 hours, so soaking-filtering-freezing-thawing cycle 10 times, collecting the last natural thawing material to obtain the thawing material; washing the obtained thawing material with deionized water for 5 times, and then washing the thawing material with liquid After freezing with nitrogen for 60 seconds, transfer it to a press machine, press for 30 minutes at a pressure of 25 MPa, and release the pressure to obtain a pressed ma...
example 2
[0026] Put the tourmaline into the ball mill tank, and add zirconia ball mill beads according to the mass ratio of the ball to material at 40:1. At a speed of 500r / min, after ball milling and mixing for 6 hours, discharge the material, pass through a 30-mesh sieve, and collect the granules to get tourmaline coarse powder; the gained tourmaline coarse powder is washed 5 times with deionized water, and then the thawed material after washing is frozen with liquid nitrogen for 60s, then transferred to an extruder, and kept at a pressure of 25MPa. Squeeze for 30 minutes, release the pressure to obtain the pressed material, then transfer the obtained pressed material into a vacuum drying oven, and vacuum-dry to constant weight at a temperature of 105°C and a pressure of 40 Pa to obtain a dried pressed material; according to parts by weight According to the calculation, take 50 parts of dry pressed material, 4 parts of dopamine, 200 parts of aluminum salt solution with a mass fraction...
example 3
[0028] Put the tourmaline into the ball mill tank, and add zirconia ball mill beads according to the mass ratio of the ball to material at 40:1. At a speed of 500r / min, after ball milling and mixing for 6 hours, discharge the material, pass through a 30-mesh sieve, and collect the Granules to obtain tourmaline coarse powder; immerse tourmaline coarse powder in biogas slurry, soak for 5 hours at room temperature, filter to obtain No. 1 filter residue, and freeze No. 1 filter residue with liquid nitrogen for 30 seconds, then store Under natural thawing for 3 hours, so soak-filter-freeze-thaw cycle 10 times, collect the last natural thawed material to obtain thawed material; in parts by weight, take 50 parts of thawed material, 4 parts of dopamine, 200 parts by mass fraction It is 10% aluminum salt solution, 120 parts of ethanol solution of stearic acid, first mix the thawing material, dopamine and aluminum salt solution into a three-necked flask with a stirrer, at a temperature o...
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