Crack-resistant and souring-prevention cement pavement composite structure
A technology of cement pavement and composite structure, which is applied to cohesive pavement paved on site, roads, roads, etc. It can solve the problems of poor anti-crack and anti-scour performance, reflective cracks, etc. in the 1970s, 1980s and 1990s Established on the basis of a series of research results in the early 1990s and other issues, to achieve excellent water erosion resistance and delay reflective cracks
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Embodiment 1
[0046] A cement pavement composite structure with anti-crack and anti-scour, which comprises cushion layer, lower base, upper base, anti-crack and anti-scour layer and cement concrete surface course from bottom to top; the anti-crack and anti-scour layer includes lower bearing layer, transition layer and upper surface.
[0047] The lower bearing layer includes the following materials by weight:
[0048]
[0049] The particle size of the crushed stone is 5-10mm, and the coverage rate is 60%. The stabilizer includes 70wt% epoxy butyl stearate and 30wt% pentaerythritol.
[0050] The transition layer includes the following materials by weight:
[0051]
[0052]
[0053] The thickener includes 60wt% xanthan gum and 40wt% polyethylene oxide; the number average molecular weight of the ethylene-tetrafluoroethylene-hexafluoropropylene copolymer is 4800.
[0054] The upper surface layer includes the following materials by weight:
[0055]
Embodiment 2
[0057] A cement pavement composite structure with anti-crack and anti-scour, which comprises cushion layer, lower base, upper base, anti-crack and anti-scour layer and cement concrete surface course from bottom to top; the anti-crack and anti-scour layer includes lower bearing layer, transition layer and upper surface;
[0058] The lower bearing layer includes the following materials by weight:
[0059]
[0060] The particle size of the crushed stone is 5-10mm, and the coverage rate is 60-80%. The stabilizer includes 72wt% epoxy butyl stearate and 28wt% pentaerythritol.
[0061] The transition layer includes the following materials by weight:
[0062]
[0063] The thickener includes 70wt% xanthan gum and 30wt% polyethylene oxide; the number average molecular weight of the ethylene-tetrafluoroethylene-hexafluoropropylene copolymer is 5000.
[0064] The upper surface layer includes the following materials by weight:
[0065]
Embodiment 3
[0067] A cement pavement composite structure with anti-crack and anti-scour, which comprises cushion layer, lower base, upper base, anti-crack and anti-scour layer and cement concrete surface course from bottom to top; the anti-crack and anti-scour layer includes lower bearing layer, transition layer and upper surface;
[0068] The lower bearing layer includes the following materials by weight:
[0069]
[0070] The particle size of the crushed stone is 5-10mm, and the coverage rate is 80%; the stabilizer includes 75wt% epoxy butyl stearate and 25wt% pentaerythritol;
[0071] The transition layer includes the following materials by weight:
[0072]
[0073] The thickener includes 76wt% xanthan gum and 24wt% polyethylene oxide; the number average molecular weight of ethylene-tetrafluoroethylene-hexafluoropropylene copolymer is 5200.
[0074] The upper surface layer includes the following materials by weight:
[0075]
[0076]
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Abstract
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