A cold-mixed cold-paved asphalt mixture and a cold-mixed cold-paved asphalt mixture abrasive layer
A technology of cold laying asphalt and mixture, which is applied to the direction of on-site paved concrete pavement, roads, buildings, etc., and can solve the problems of poor performance of reflection cracks and reflection crack diseases
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Embodiment 1
[0044]A cold-mixed asphalt mixture comprising the following components in parts by mass:
[0045] 60 parts of diabase coarse aggregate,
[0046] 40 parts of diabase fine aggregate,
[0047] 12 parts of SBS modified emulsified asphalt,
[0048] 1 part cement,
[0049] 3 parts water,
[0050] 0 parts of water-based coupling agent.
[0051] Among them, Portland cement is used for cement, pure water is used for water, the mass content of SBS modifier in modified emulsified asphalt is not less than 4%, and no water-based coupling agent is added. The particle size of the aggregate is 0-9.5 mm, and the gradation adopts the GT-7 type in the special gradation of coarse aggregate and fine aggregate shown in Table 1. The results of the aggregate screening test are shown in Table 2:
[0052] Table 2 Coarse aggregate and fine aggregate screening test results
[0053]
[0054] The construction method steps of cold-mixed and cold-laid asphalt mixture wear course are as follows:
[...
Embodiment 2
[0057] A cold-mixed asphalt mixture comprising the following components in parts by mass:
[0058] Granite coarse aggregate 80 parts,
[0059] Granite fine aggregate 20 parts,
[0060] 15 parts of SBS modified emulsified asphalt,
[0061] Mineral powder 0.5 part,
[0062] 0.5 parts of water,
[0063] 3 parts of water-based coupling agent.
[0064] Among them, the coarse aggregate and fine aggregate are acidic granite aggregates, the mass content of SBS modifier in the modified emulsified asphalt is not less than 4%, water-based coupling agent is added, and the particle size of the aggregate is 0-9.5mm. The GT-7 type in the special gradation of coarse aggregate and fine aggregate as shown in Table 1 is adopted, and the results of the aggregate screening test are shown in Table 3:
[0065] Table 3 Coarse aggregate and fine aggregate screening test results
[0066]
[0067] The construction method steps of cold-mixed and cold-laid asphalt mixture wear course are as follo...
Embodiment 3
[0070] A cold-mixed asphalt mixture comprising the following components in parts by mass:
[0071] Granite coarse aggregate 50 parts,
[0072] Granite fine aggregate 50 parts,
[0073] 10 parts of SBS modified emulsified asphalt,
[0074] 3 parts of cement,
[0075] 5 parts of water,
[0076] 1 part of water-based coupling agent.
[0077] Among them, the coarse aggregate and fine aggregate are acidic granite aggregates, the mass content of SBS modifier in the modified emulsified asphalt is not less than 4%, the particle size of the acidic aggregate is 0-9.5mm, and the gradation is as shown in the table The GT-5 type in the special gradation of coarse aggregate and fine aggregate shown in 1, the aggregate screening test results are shown in Table 4:
[0078] Table 4 Coarse aggregate and fine aggregate screening test results
[0079]
[0080] The construction method steps of cold-mixed and cold-laid asphalt mixture wear course are as follows:
[0081] Add the designed ...
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