1. Process flow
Basic treatment--finding the elevation and elastic level control line--batching pulping--high-pressure pipeline transportation--pouring on the construction surface--leveling--natural maintenance.
2. Process requirements
2.1. Base treatment: Before pouring the foam concrete insulation layer (or cushion), the concrete floor base should be treated, and the loose concrete bonded to the base should be removed. Use a chisel to remove floating slurry, brush off the cement slurry with a wire brush, and then sweep it clean with a broom.
2.2. Find the elevation control line to bounce horizontally: According to the +50cm horizontal elevation line on the wall, measure the elevation of the insulation layer downwards. If possible, bounce it on the surrounding walls.
2.3. Ingredients for slurrying: add cement and fly ash to the mixer after measurement, make a 10% foaming agent aqueous solution into a fine and uniform foam of about 1㎜, and then add the foam to the mixer; foam Mix evenly with cement slurry to make foam concrete slurry.
2.4. High-pressure pipeline transportation: start the foaming machine and pump the foam concrete slurry to the construction surface with a pouring pump;
2.5. Pouring molding: pour the foam concrete The slurry is poured onto the construction surface.
2.5.1. When mixing foam concrete slurry every day, the density of the slurry should be determined to be around 600 kg/m3, and the foaming condition can be determined to be normal before construction.
2.5.2. Observe and check the foaming and pouring conditions and fluidity of the slurry at any time during construction and pouring, and strictly control the pouring thickness and surface smoothness.
2.5.3. Before laying the foam concrete, sprinkle water on the base layer to moisten it, and then start laying it from one end.
2.6. Leveling: After the initial setting of the foam concrete, check the flatness based on the horizontal elevation line and leveling line on the wall, shovel out the high ones, and fill the recesses. Use a horizontal wooden scraper to scrape the surface smooth, then rub the surface flat with a wooden trowel. Grounds with slope requirements should be constructed according to the slope required by the design.
2.7. After the foam concrete is poured, it will be cured naturally for 3-7 days. Only when it is ready for work can other projects be carried out.
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