Polyethylacrylate-polypropylene fiber cement concrete and its preparation method
A polyethyl acrylate and polypropylene fiber technology, applied in the field of concrete, can solve problems such as building collapse and concrete being difficult to resist earthquakes.
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[0013] The invention provides a kind of preparation method of polyethylacrylate-polypropylene fiber cement concrete, described method comprises:
[0014] 1) The process of laying polypropylene fibers into polypropylene fiber mesh;
[0015] 2) The process of mixing cement, sand, fly ash, polyethyl acrylate and water to prepare concrete slurry;
[0016] 3) Spray the concrete slurry into the mold, then lay the polypropylene fiber mesh cloth on the concrete, then spray the concrete slurry on the polypropylene fiber mesh cloth and lay the polypropylene fiber mesh cloth on the concrete slurry to reciprocate The process of making the primary concrete;
[0017] 4) The process of heating the primary concrete to obtain polyethylacrylate-polypropylene fiber cement concrete.
[0018] In the present invention, the polyethyl acrylate can be any polyethyl acrylate known in the art, considering the cost and the mechanical strength of the prepared concrete, preferably, the polyethyl acrylate...
Embodiment 1
[0030] 1) Lay polypropylene fibers with a diameter of 0.08mm into a polypropylene fiber mesh, wherein the radial density of the polypropylene fiber mesh is 4 fibers / cm, and the weft density is 2 fibers / cm;
[0031] 2) 100kg of No. 42.5 cement, 250kg of sand with a particle diameter of 8mm, 160 of fly ash, 25kg of polyethyl acrylate with a weight average molecular weight of 4000 and water are mixed to prepare concrete slurry;
[0032] 3) Spray the concrete slurry into the mold, then lay the polypropylene fiber mesh cloth on the concrete, then spray the concrete slurry on the polypropylene fiber mesh cloth and lay the polypropylene fiber mesh cloth on the concrete slurry to reciprocate Make the first product of concrete, wherein the distance between two adjacent polypropylene fiber mesh cloths is 13cm;
[0033] 4) The process of heating the primary concrete product at 90°C for 2.5 hours to prepare polyethylacrylate-polypropylene fiber cement concrete.
[0034] The initial crack...
Embodiment 2
[0036] 1) Lay polypropylene fibers with a diameter of 0.05 mm into a polypropylene fiber mesh, wherein the radial density of the polypropylene fiber mesh is 4 fibers / cm, and the weft density is 2 fibers / cm;
[0037] 2) 100kg of No. 42.5 cement, 200kg of sand with a particle diameter of 5mm, 150 of fly ash, 20kg of polyethyl acrylate with a weight average molecular weight of 3000 and water are mixed to prepare concrete slurry;
[0038] 3) Spray the concrete slurry into the mold, then lay the polypropylene fiber mesh cloth on the concrete, then spray the concrete slurry on the polypropylene fiber mesh cloth and lay the polypropylene fiber mesh cloth on the concrete slurry to reciprocate Make the first concrete product, wherein the distance between two adjacent polypropylene fiber mesh cloths is 10cm;
[0039] 4) The process of heating the primary concrete product at 80°C for 2 hours to obtain polyethylacrylate-polypropylene fiber cement concrete.
[0040] The initial crack tens...
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