Prefabricated high-strength floor deck and preparation method thereof
A floor deck, high-strength technology, applied in the field of prefabricated high-strength floor deck and its preparation, can solve the problems of long production cycle, low production capacity, long mixing and forming time, etc.
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[0093] A method for preparing the above-mentioned prefabricated high-strength floor deck, characterized in that it includes the following steps:
[0094] 1) Add the upper layer material, the middle material layer material and the lower layer material respectively into the respective mixers in the order of liquid, powder, fiber and sawdust and stir for 5-10 minutes;
[0095] 2) Paving the upper layer material and the lower layer material on the two-layer formwork, and laying glass fiber mesh cloth on the upper layer material and the lower layer material respectively;
[0096] 3) Lay the middle material layer above the lower layer;
[0097] 4) Turn the upper layer mechanically over the middle material layer;
[0098] 5) Send it to a hot press for hot pressing, the temperature is 70-150°C, the hot pressing pressure is 8-30MPa, and the hot pressing time is 15-30min;
[0099] 6) After the pressure is relieved, the formwork is removed, and the board is placed in an environment wit...
example 1
[0104] A prefabricated high-strength floor slab, the floor slab includes an upper layer, a middle layer and a lower layer, and the middle layer is located between the upper layer and the lower layer;
[0105] Both the upper layer and the lower layer are made of the following raw materials in weight ratio: 100 parts of MgO, 10 parts of magnesium sulfate, 150 parts of water, 6 parts of fine wood chips with a mesh number of 45, 0.1 part of polypropylene fiber, 0 part of mineral powder, Composite modifier 0 parts;
[0106] The middle material layer is made of the following raw materials in weight ratio: 100 parts of MgO, 10 parts of magnesium sulfate, 100 parts of water, 5 parts of fine wood chips with a mesh number of 45 mesh, and the particle range of 15 mesh: 30 mesh: 45 mesh wood chips by weight 1 part of mixed wood chips made by mixing at a ratio of 1:2:3, 1 part of extra-coarse wood chips with a mesh number of 6, 0 parts of silica fume, and 0 parts of composite modifier;
...
example 2
[0115] A prefabricated high-strength floor slab, the floor slab includes an upper layer, a middle layer and a lower layer, and the middle layer is located between the upper layer and the lower layer;
[0116] Both the upper layer and the lower layer are made of the following raw materials in weight ratio: 100 parts of MgO, 20 parts of magnesium sulfate, 200 parts of water, 15 parts of fine wood chips with a mesh size of 50 mesh, 0.3 parts of polypropylene fiber, 10 parts of mineral powder, 6 parts of composite modifier, wherein the composite modifier is made of the following raw materials in weight ratio: 1 part of sucrose, 1 part of triethanolamine, 2 parts of sodium citrate, and 2 parts of water;
[0117] The middle material layer is made of the following raw materials in weight ratio: 100 parts of MgO, 20 parts of magnesium sulfate, 150 parts of water, 15 parts of fine wood chips with a mesh number of 50 mesh, and the particle range of 25 mesh: 30 mesh: 55 mesh wood chips by...
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