A fiber-increased and viscosified micro-surface overlay
A technology of micro-surfacing and micro-surfacing mixture, which is applied in the field of asphalt road maintenance, can solve the problems of little research on the bonding performance of micro-surfacing overlays, the influence of micro-surfacing overlay service life, and the movement of micro-surfacing overlays. and other problems, to achieve superior impermeability, improve road performance, and improve the effect of interlayer bonding performance
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Embodiment 1
[0017] Add 0.4g of water-based epoxy resin and 0.2g of neoprene latex to 200g of anionic emulsified asphalt, and stir well to obtain an interlayer adhesive. A 300mm×300mm×50mm AC-13 asphalt concrete slab was formed with a rutting plate trial mold to simulate the original asphalt pavement, and the interlayer adhesive was evenly applied to the asphalt concrete slab with a brush.
[0018] The sepiolite fibers were soaked in nitric acid with a mass fraction of 98% for 6 hours, washed with water, and then heated at 400°C for 3 hours to obtain surface-treated sepiolite fibers.
[0019] Then mix 250 parts of aggregate, 25 parts of cationic emulsified asphalt, 7 parts of cement, 0.125 parts of pitch-based carbon fiber, 0.125 part of surface-treated sepiolite fiber and 20 parts of water to prepare the micro-surface mixture, And spread the just-mixed micro-surface mixture rapidly onto the above-mentioned rut plate that has been brushed with the interlayer adhesive, and scrape it flat wi...
Embodiment 2
[0022] Add 0.5g of water-based epoxy resin and 0.7g of neoprene latex to 300g of anionic emulsified asphalt, and stir well to obtain an interlayer adhesive. A 300mm×300mm×50mm AC-13 asphalt concrete slab was formed with a rutting plate trial mold to simulate the original asphalt pavement, and the interlayer adhesive was evenly applied to the asphalt concrete slab with a brush.
[0023] The sepiolite fibers were soaked in 98% nitric acid for 7 hours, washed with water, and heated at 430°C for 4 hours to obtain surface-treated sepiolite fibers.
[0024] Then according to 250 parts of aggregate, 26 parts of cationic emulsified asphalt, 7 parts of cement, 0.1 part of pitch-based carbon fiber, 0.2 part of surface-treated sepiolite fiber and 19.6 parts of water, the micro-surface mixture is mixed by weight percentage, And spread the just-mixed micro-surface mixture rapidly onto the above-mentioned rut plate that has been brushed with the interlayer adhesive, and scrape it flat with ...
Embodiment 3
[0027] Add 0.6g of water-based epoxy resin and 1.4g of neoprene latex to 400g of anionic emulsified asphalt, and stir well to obtain an interlayer adhesive. A 300mm×300mm×50mm AC-13 asphalt concrete slab was formed with a rutting plate trial mold to simulate the original asphalt pavement, and the interlayer adhesive was evenly applied to the asphalt concrete slab with a brush.
[0028] The sepiolite fibers were soaked in 98% nitric acid for 8 hours, washed with water, and heated at 460°C for 5 hours to obtain surface-treated sepiolite fibers.
[0029] Then according to 250 parts of aggregate, 27 parts of cationic emulsified asphalt, 7 parts of cement, 0.1 part of pitch-based carbon fiber, 0.3 part of surface-treated sepiolite fiber and 19.2 parts of water, the micro-surface mixture is mixed by weight percentage, And spread the just-mixed micro-surface mixture rapidly onto the above-mentioned rut plate that has been brushed with the interlayer adhesive, and scrape it flat with ...
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