plaster self-leveling

Self-leveling construction method

Construction technology of gypsum self-leveling

The factory production of gypsum self-leveling, on-site water addition, mechanical mixing, and pumping construction ensure convenient and efficient construction.

1. Close the site

The site should be closed and cross operations are strictly prohibited. The construction requires the cleanliness of the base and the environment, without interference from other types of work, and no interruption or pause is allowed.

2. Grass-roots inspection

Before construction, use a tester to detect whether the surface hardness and flatness of the base layer meet the construction requirements. Thoroughly check the surface of the base layer for defects such as sanding, hollowing, shelling, peeling, and cracks.

3. Grassroots pretreatment

Use a sander to grind the base as a whole to remove paint, glue and other residues, raised and loose plots, and hollow plots must also be removed. Then use a professional vacuum cleaner to vacuum and clean the base layer.

If there are cracks on the floor, special materials should be used for filling, leveling, and sealing to ensure the integrity of the floor.

4. Brush interface agent

The purpose of painting the interface agent is to seal the base, prevent the self-leveling mortar from losing moisture prematurely, enhance the bonding strength between the ground base and the self-leveling mortar layer, prevent the generation of air bubbles, and improve the fluidity of the self-leveling mortar.

According to the instructions for use of the interface agent, apply the interface agent on the ground with a roller. The application should be even and without omission, and no local accumulation of liquid should be allowed.

For dry, water-absorbing substrates, it should be treated twice, and the second coat should be applied after the first coat of interface agent is dry.

Make sure that the interface agent is completely dry and there is no accumulation before proceeding to the next step of construction.

5. Pouring gypsum self-leveling

a. Preliminary preparation

Before formal construction, partitions should be made in advance to ensure continuous pouring of the entire area at one time.

b. Stir to make slurry

According to the material requirements, add the whole package of self-leveling materials into the electric mixer, and stir continuously and evenly for 3-5 minutes. Make it into a fluid slurry with uniform consistency and no lumps.

c. Slurry pouring

Pour the stirred fluid self-leveling material onto the base surface within the construction time, and let it flow like water.

If the self-leveling construction thickness design is ≤10mm, it is necessary to use a special self-leveling scraper for batch scraping to assist leveling.

d. finishing surface

After the slurry is spread, use a toothed scraper to spread the slurry and control the appropriate thickness, let it stand for 3~5 minutes, let the air bubbles wrapped in it discharge, and then use the defoaming roller to deflate to remove the air bubbles. After the overall ground is completely hardened, the construction and laying of the surface layer can be carried out.

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