Hardener: emery wear-resistant hardening floor is composed of mineral alloy aggregate, special cement plus other admixtures and admixtures
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The common way to start construction is to evenly spread it on the concrete surface of rapid initial setting stage
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After professional means processing, it can form a whole with the concrete floor, and has high density And colored high-performance wear-resistant floor
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It is very wear-resistant and impact resistant, and it can also reduce dust
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The scope of its use is some places that need uniform color to improve the working environment and beauty, and there is no corrosive medium, such as the parking lot
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Today, I will tell you about the matters needing attention when starting the construction of the floor paint of the parking lot, so as to ensure that our finished products have better effect
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I
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the concrete strength must be greater than or equal to C25, containing more than 350kg / m3 ordinary silicate
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The cement and water cement ratio should be less than 0.45; 2
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The leveling layer must be fine aggregate concrete and its thickness should not be less than 50 mm
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Precautions for civil engineering: ① as the construction of wear-resistant materials and the pouring of cement floor are almost carried out at the same time, in order to ensure the construction quality and progress of wear-resistant layer, the mixed pouring should be well coordinated; ② the setting of formwork should be flat and firm, the formwork should be 6M, and the formwork should be coated with mold removal oil, the elevation of formwork should be detected at any time with a level meter, and the deviation should be adjusted in time; ③ The concrete strength shall not be lower than C25, and the water cement ratio shall be as small as possible; ④ the plug-in vibrator and pull vibrator shall be used for operation, and the level instrument shall be used to detect the formwork level after vibration, and the deviation position shall be adjusted; (5) use heavy steel long roll (the steel roll should be wider than the template) to press repeatedly, and keep the steel mold clean, so as to make the floor level
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If it is impossible to use the steel roll, it should be leveled with random ruler
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⑥ For the parts with serious bleeding, the rubber pipe shall be used to remove the bleeding; the unloading shall be carried out on the second day after the completion of the wear-resistant surface layer, and the expansion joint shall be cut by the builder on the third day; the cross construction shall not be arranged during the construction period of Party B, and Party B shall be responsible for the protection and maintenance of the constructed floor, and Party A shall provide water and electricity; Product requirements for cement base surface: 1
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The cement base surface is firm, solid and not shelled
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Prevent the mortar from shelling
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It is better to pour the concrete layer together with the mortar leveling layer: if the concrete layer is rammed first, the thickness of the mortar layer shall not be less than 4cm, and the forklift road shall be thicker
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2
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No sanding and good hardness are required
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There is no cement pulverization
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Requirements a, high quality cement
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B
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The newly poured cement mortar layer shall be fully maintained
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3
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The cement base surface is flat and free of unevenness, honeycomb and pockmarks
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4
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It is required that the flatness of the ground shall not be greater than the required thickness of the coating (use a 3M ruler to lean on it); 5
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The surface shall be dry, and the water content shall be less than 6, so as to keep the ground dry and free of oil stains
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Remember that the cement ground shall not be washed with water or mopped 5 days before entering the construction site after the maintenance period
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6
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The pH value of the floor surface should be 6.0-8.0
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7
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The ground shall be free of oil, other paint, latex paint, bubble gum and other residues; the gradient shall meet the design requirements, and the allowable deviation shall be 2% of the gradient and no more than 30mm
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