How to deal with the ash on the surface of the waterproof screed layer in the bathroom

It does not affect the construction of waterproof operations, but it can be mixed with plain cement and 108 glue solution to stir into a paste, and the surface of the leveling layer can be evenly scraped into a layer.

Toilet waterproof layer method:

1.Usually the ground is a cement mortar surface, and there are some special circumstances, such as the pipeline is not buried, the ground is uneven, so the base should be smooth, the surface should be smoothed and calendered, solid, there shall be no hollowing, sanding, cracking and other phenomena, the moisture content of the base layer should meet the construction requirements of waterproof materials, not greater than 9.

2.The flooding slope of the screed layer should be 2, and the slope of 5 (1 20) should be erased at the root of the pipe against the wall to avoid water accumulation here.

3.Pipe roots and floor drains that protrude from the floor and walls. Drains, yin and yang angles and other parts that are prone to leakage should be treated with local special plugging.

4.Stir the paint well, open the paint packaging barrel, and stir well with a stirrer for about 5 10 minutes until the material does not contain agglomerates and does not precipitate. Generally, mechanical mixing is used, and manual mixing is not appropriate.

5.The first layer of coating film: the waterproof coating is evenly scraped on the surface of the base layer that has been coated with primer with a plastic or rubber scraper, the thickness is, to be uniform, the amount of scraping is appropriate, the operation of the wall first and then the ground, from the inside to the outside of the operation, the coating should be as uniform as possible, there can be no local deposition, no bubbles, and the bond is tight.

When used on a wet or non-absorbent base layer, there is no need to lay the bottom layer.

6.THE WATERPROOF LAYER SHOULD EXTEND FROM THE GROUND TO THE WALL, 250MM ABOVE THE GROUND The height of the waterproof layer on the wall of the bathroom near the shower head shall not be less than 1800MM.

7.When the first layer of coating film is solidified to non-sticky hands, the second coating film waterproof construction is carried out according to the first material construction method. In order to make the thickness of the coating film uniform, the direction of scraping must be perpendicular to the direction of the first scraping, and the amount of scraping is slightly less than that of the first pass, and the thickness is appropriate.

8.THE WATERPROOF LAYER OF THE COATING FILM IS EVENLY PAINTED, AND THE GENERAL THICKNESS SHALL NOT BE LESS THAN 1 5MM, ESPECIALLY FOR FAÇADE CONSTRUCTION, ONE OR MORE LAYERS CAN BE ADDED. When adding non-woven fabrics, the lower coating and upper coating should be continuously constructed, and the non-woven fabrics should be paved straight, and brushed with a brush without leaving a hollow drum.

9.The waterproof surface of the coating film is not blistering, does not flow, is smooth and has no concave and convex, and the joints of pipe fittings, sanitary ware feet, floor drains, and drainage outlets are tight, and the end is smooth and non-leaking.

10.After the waterproofing project is completed, a 24-hour closed water test must be done.

If there is ash and sand on the cement base, then it is recommended to use special strong and solid to deal with it, because the waterproof cement base is required to be clean and firm, free of oil and dust, and the following is the standard construction method of wall and ground solidification

1. Clean the base surface, free of oil, floating ash, sundries, etc.

2. Use a roller or brush to dip the slurry, evenly and densely brush it on the base surface, and do not miss the brush. The highly absorbent base can be diluted with water.

3. After 2 to 4 hours of completion, the coating can be completely dried before the next process can be carried out.

Smash it and redo it once.