What is the method of cement joint filling?

What is the method of cement joint filling?

Before caulking, the excess cement, dust and other sundries at the joints of ceramic tiles must be removed, so as to avoid mixing the excess cement, dust and caulking agent during caulking and affecting caulking. Specific operation, first adjust the white cement to a semi-dry state, then fill the gap with a flat scraper, and finally clean it with a rag. Note that if the joint filling encounters hot weather, the surface of the brick joint should be wet first to avoid being too dry.

Matters needing attention in cement joint filling

1, pay attention to the joint filling time.

Antique bricks can be repaired in 24 hours after paving. Antique bricks are not reliable for 24 hours. Careless caulking may lead to the displacement and looseness of antique bricks. It should also be noted that premature joint filling will lead to easy alkali return. In view of the tile construction in the early stage of decoration, it is easy to get dirty. So you might as well put caulking at the end of the renovation. Of course, before caulking, you need to clean the dirt and sundries in the cracks of the tiles.

2. Select joint filling material

There are many caulking materials on all sides, such as white cement, putty powder, caulking agent, caulking agent and so on. Among them, white cement and putty powder are traditional building materials with poor performance. The short-term effect is acceptable, and it is easy to fall off and leak after a long time, and the waterproof performance is not good, which leads to moisture. The caulking agent is a specially designed formula material, so it has better adhesion than other traditional materials, better wear resistance after drying, high strength, low water absorption, and is not easy to get wet and absorb dirt.

3. The implementation position of the filling process

Different tile processes are slightly different. Generally speaking, tiles with small joints do not need to be caulked. For ceramic tile products with non-right-angle corners, such as antique bricks, attention should be paid not to fill the slope of the brick edge at the same time when caulking, so as not to affect the effect. In view of the high cost of caulking materials, large-area and large brick joints such as outdoor balconies can be replaced by reasonably configured cement mortar.