Surface Coating Construction Plane Surface Requirements:
1. It is required that the cement base surface is firm, strong, and not shelling, to prevent mortar from shelling, and it is better to cast the concrete layer together with the mortar leveling layer; if the concrete layer is laid first, the thickness of the mortar layer should not be less than 4cm, the fork lane Ask for a thicker one.
2. It is required that the surface does not have sand, the hardness is good, and there is no cement powdering phenomenon. Requires A, high quality cement. B. The newly poured cement mortar should be fully maintained.
3, cement base surface is flat, no bumps, cellular matte, cement concrete.
4. It is required that the leveling of the ground is not greater than the required coating thickness (flat with a 3 meter ruler);
5. The surface is dry and the moisture content is less than 6. Keep the ground dry and free of oil. Remember that cement floor can not be washed with water or mop mop after 5 days before entering the construction period after the maintenance period.
6. The PH value of the floor surface should be 6.0~8.0;
7, no oil on the ground, other paints, latex paint, bubble gum and other residues;
8. The slope should meet the design requirements. The allowable deviation is 2% of the slope and not more than 30mm.
Measure compressive strength Industrial flooring compressive strength should not be less than 25N/mm2 (3500psi)
In order to meet certain load-bearing requirements, it may also require higher strength. It is recommended to use a bouncer to make measurements at multiple points, or it is advisable to take samples of cores to measure their compressive strength.
Determine bond strength
The concrete base surface is usually a low-strength layer formed by grout within a few millimeters of its surface. Reaction shrinks, changes in temperature, or repeated weighting, and stress, resulting in reduced bond strength. The minimum bond strength should not be less than
1.5 N/mm2 (210 psi).
The wetness of the base surface measures the wetness of the base, because the cement base can only be applied with the coating when the moisture is not more than 6%.
Therefore, the measurement of moisture is particularly important. The best way to determine the rising humidity is "rubber pad experiment." (At least 1m × 1m polyethylene film taped to the concrete surface) at least 24
Hours to get it away. This determines the amount of condensate.
Ground treatment plan:
1. In order to achieve the perfect effect of the coating, the company has participated in the leveling treatment of the cement screed on the ground for the ground that has not been leveled. When the civil works are leveled, the ground surface of our company is ground with the company's professional ground machinery when the cement is first set. Based on this, the surface effect of the epoxy coating layer will be smoother and brighter, and the service life will also be improved.
2. After the cement layer is dry (approximately 28 days), use a grinding machine to grind the ground as a whole, so that the surface is flat and all the cement pores open.
3, for the cement floor has oil (food, oil, oil), first with the United States and DREAM treatment agent sprayed on wet surface of the water, repeated scrub, until no oil so far.
4. If the floor is too alkaline (PH>8), first neutralize it with a beautiful treatment agent and then rinse with water;
5, for wet ground, through water absorption. Dry, sun light, hot air blow drying, burning, drying it to meet the construction requirements.
6, for the old paint on the ground (such as emery ground, old paint ground), first use the United States and Dili mechanical eradicated old paint, and then on the bad cement, corundum ground at the same time on the ground hair. After the ground is treated in this way, the unstable old cement and corundum surface is removed and a rough surface is formed, thereby improving the adhesion of the new coating and increasing the service life of the coating floor.
1. It is required that the cement base surface is firm, strong, and not shelling, to prevent mortar from shelling, and it is better to cast the concrete layer together with the mortar leveling layer; if the concrete layer is laid first, the thickness of the mortar layer should not be less than 4cm, the fork lane Ask for a thicker one.
2. It is required that the surface does not have sand, the hardness is good, and there is no cement powdering phenomenon. Requires A, high quality cement. B. The newly poured cement mortar should be fully maintained.
3, cement base surface is flat, no bumps, cellular matte, cement concrete.
4. It is required that the leveling of the ground is not greater than the required coating thickness (flat with a 3 meter ruler);
5. The surface is dry and the moisture content is less than 6. Keep the ground dry and free of oil. Remember that cement floor can not be washed with water or mop mop after 5 days before entering the construction period after the maintenance period.
6. The PH value of the floor surface should be 6.0~8.0;
7, no oil on the ground, other paints, latex paint, bubble gum and other residues;
8. The slope should meet the design requirements. The allowable deviation is 2% of the slope and not more than 30mm.
Measure compressive strength Industrial flooring compressive strength should not be less than 25N/mm2 (3500psi)
In order to meet certain load-bearing requirements, it may also require higher strength. It is recommended to use a bouncer to make measurements at multiple points, or it is advisable to take samples of cores to measure their compressive strength.
Determine bond strength
The concrete base surface is usually a low-strength layer formed by grout within a few millimeters of its surface. Reaction shrinks, changes in temperature, or repeated weighting, and stress, resulting in reduced bond strength. The minimum bond strength should not be less than
1.5 N/mm2 (210 psi).
The wetness of the base surface measures the wetness of the base, because the cement base can only be applied with the coating when the moisture is not more than 6%.
Therefore, the measurement of moisture is particularly important. The best way to determine the rising humidity is "rubber pad experiment." (At least 1m × 1m polyethylene film taped to the concrete surface) at least 24
Hours to get it away. This determines the amount of condensate.
Ground treatment plan:
1. In order to achieve the perfect effect of the coating, the company has participated in the leveling treatment of the cement screed on the ground for the ground that has not been leveled. When the civil works are leveled, the ground surface of our company is ground with the company's professional ground machinery when the cement is first set. Based on this, the surface effect of the epoxy coating layer will be smoother and brighter, and the service life will also be improved.
2. After the cement layer is dry (approximately 28 days), use a grinding machine to grind the ground as a whole, so that the surface is flat and all the cement pores open.
3, for the cement floor has oil (food, oil, oil), first with the United States and DREAM treatment agent sprayed on wet surface of the water, repeated scrub, until no oil so far.
4. If the floor is too alkaline (PH>8), first neutralize it with a beautiful treatment agent and then rinse with water;
5, for wet ground, through water absorption. Dry, sun light, hot air blow drying, burning, drying it to meet the construction requirements.
6, for the old paint on the ground (such as emery ground, old paint ground), first use the United States and Dili mechanical eradicated old paint, and then on the bad cement, corundum ground at the same time on the ground hair. After the ground is treated in this way, the unstable old cement and corundum surface is removed and a rough surface is formed, thereby improving the adhesion of the new coating and increasing the service life of the coating floor.
Ground acceptance cement paint latex paint
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