High-strength permeable asphalt concrete and preparation method thereof
A permeable asphalt and concrete technology, applied in the field of asphalt concrete, can solve the problems of urban surface temperature, humidity adjustment ability reduction, vegetation damage, roads easy to accumulate water, etc., to alleviate the urban heat island effect, good crack resistance, and good water permeability Effect
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Embodiment 1
[0041] High-strength permeable asphalt concrete raw materials (parts by weight): 45 parts of cement, 35 parts of asphalt, 100 parts of coarse aggregate, 15 parts of fine aggregate, 8 parts of vermiculite, 8 parts of reinforcing agent, 4 parts of fly ash, water reducer 1 part, 0.5 parts of sodium carboxymethylcellulose, and 25 parts of water.
[0042] The reinforcing agent is glass fiber.
[0043] The coarse aggregate is granite crushed stone.
[0044] The fine aggregate is river sand.
[0045] The water reducer is a polycarboxylate water reducer.
[0046]The preparation method of the high-strength permeable asphalt concrete includes the following steps: weighing each raw material by weight, adding water reducer and sodium carboxymethyl cellulose into water, stirring at 60°C at 150 rpm for 8 minutes, Obtain a mixture; mix cement, asphalt, coarse aggregate, fine aggregate, vermiculite, and reinforcing agent, and stir at 180°C at 150 rpm for 15 minutes to obtain a mixture; add...
Embodiment 2
[0048] High-strength permeable asphalt concrete raw materials (parts by weight): 45 parts of cement, 35 parts of asphalt, 100 parts of coarse aggregate, 15 parts of fine aggregate, 8 parts of modified vermiculite, 8 parts of reinforcing agent, 4 parts of fly ash, 1 part of water, 0.5 part of sodium carboxymethylcellulose, 25 parts of water.
[0049] The reinforcing agent is glass fiber.
[0050] The coarse aggregate is granite crushed stone.
[0051] The fine aggregate is river sand.
[0052] The modified vermiculite is prepared by the following method: mix vermiculite and ethanol with a volume fraction of 50% in a mass ratio of 1:8, stir at 200 rpm for 15 minutes, filter with a 300-mesh filter cloth, and filter Dry the cake at 95°C for 3 hours to obtain vermiculite for removal of impurities; add 20g of aluminum isopropoxide to 50mL of water, stir at 80°C at 200 rpm for 50 minutes, add 10g of citric acid, and stir at 80°C at 200 rpm Stir for 2 hours to obtain a sol; add 15 ...
Embodiment 3
[0056] High-strength permeable asphalt concrete raw materials (parts by weight): 45 parts of cement, 35 parts of asphalt, 100 parts of coarse aggregate, 15 parts of fine aggregate, 8 parts of modified vermiculite, 8 parts of reinforcing agent, 4 parts of fly ash, 1 part of water, 0.5 part of sodium carboxymethylcellulose, 25 parts of water.
[0057] The reinforcing agent is modified glass fiber.
[0058] The coarse aggregate is granite crushed stone.
[0059] The fine aggregate is river sand.
[0060] The water reducer is a polycarboxylate water reducer.
[0061] The modified vermiculite is prepared by the following method: mix vermiculite and ethanol with a volume fraction of 50% in a mass ratio of 1:8, stir at 200 rpm for 15 minutes, filter with a 300-mesh filter cloth, and filter Dry the cake at 95°C for 3 hours to obtain vermiculite for removal of impurities; add 20g of aluminum isopropoxide to 50mL of water, stir at 80°C at 200 rpm for 50 minutes, add 10g of citric aci...
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