Anti-rutting Asphalt Concrete Pavement Structure
A technology of asphalt concrete and pavement structure, which is applied to the coagulation pavement, roads, roads and other directions of on-site paving, which can solve the problem of no rut design and achieve the effect of prolonging life
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Embodiment 1
[0020] A kind of rutting-resistant asphalt concrete pavement structure, which comprises a 4cm thick first asphalt mixture layer, a first adhesive layer, a 2cm thick second asphalt mixture layer, a second adhesive layer and a 6cm thick layer from top to bottom thick third asphalt mix layer;
[0021] Wherein, the first asphalt mixture layer includes the following raw materials in parts by weight: 5.6 parts of SBS modified asphalt, 72.5 parts of the first coarse aggregate, 20.5 parts of the first fine aggregate, 6 parts of the first mineral powder, 3 parts of the gas phase layer Carbon fiber, 1 part of polyvinylidene fluoride, 1 part of anti-rutting agent, the lithology of the first coarse aggregate and the first fine aggregate are both basalt, the particle size of the first coarse aggregate is 10-18mm, and the first fine aggregate The particle size is 0-3mm, the lithology of the first mineral powder is limestone, and the anti-rutting agent is domix modifier;
[0022] The second...
Embodiment 2
[0032] A kind of anti-rutting asphalt concrete pavement structure, the first adhesive layer, the second asphalt mixture layer, the second adhesive layer and the third asphalt mixture layer in embodiment 1 are removed, and the thickness of the first asphalt mixture layer is reduced Change it to 12cm, and all the other are identical with embodiment 1.
[0033] Put the first coarse aggregate, the first fine aggregate and the first mineral powder prepared by the above gradation into the mixing equipment, and after stirring for 10-15s, add the SBS modified asphalt used in the first asphalt mixture layer , gas-phase laminated carbon fiber, polyvinylidene fluoride and anti-rutting agent, after stirring for 40-45s to obtain the first asphalt mixture, put the first asphalt mixture into a 300mm×300mm×120mm single-layer rutting test mold, and roll it After compression molding, it was cured at room temperature for 48 hours to obtain a test piece.
Embodiment 3
[0035] A kind of anti-rutting asphalt concrete pavement structure, the first asphalt mixture layer, the first bonding layer, the second bonding layer and the 3rd asphalt mixture layer are removed in embodiment 1, the thickness of the second asphalt mixture layer Change it to 12cm, and all the other are identical with embodiment 1.
[0036] Put the second coarse aggregate, the second fine aggregate and the second mineral powder prepared by the above gradation into the mixing equipment, and after stirring for 10-15s, add the MAC modified asphalt used in the second asphalt mixture layer and lignin fiber, stirred for 40-45s to obtain the second asphalt mixture, put the second asphalt mixture into a 300mm×300mm×120mm single-layer rutting test mold, and roll it into shape with a wheel mill, and keep it at room temperature for 48 hours. Get a test piece.
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