Matters needing attention in marble construction

Matters needing attention in marble construction

(1) Board surface hollowing

Because the concrete cushion is not cleaned or the water is not wet enough, the brushing cement slurry is uneven or the brushed area is too large, the time is too long and it has been air-dried, the dry hard cement mortar is arbitrarily added with water, and the marble board surface has floating soil that is not wetted with water. , Are easy to cause hollowing. Therefore, the operating process requirements must be strictly observed, the base layer must be cleaned, the bonding layer mortar must not be added with water, and a layer of cement slurry should be brushed along with the paving.

(2) Seam height is uneven, seam width is uneven

The main reason is that the plate itself has defects such as thickness, uneven width, and warpage. Factors such as not drawing a straight line for control during paving are prone to defects such as uneven seams and uneven seams. Therefore, the plates should be strictly selected in advance, and all the plates such as warping, arched back, uneven width, and uneven square should be eliminated and not used.

After laying the standard plates, they should be laid in order to both sides and backward direction, and use level and ruler to find out at any time. The seams must be pulled through without deviation. The elevation line in the room must be introduced by a special person, and the elevation in each room and corridor must be consistent.

(3) Finished product protection

1. When transporting marble slabs and cement mortar, measures should be taken to prevent collisions with finished walls and doorways.

2. In the process of laying marble slabs and breaking up marble slabs, the operating procedures personnel should use dry cloth to wipe away the traces of cement and mortar on the marble surface.

3. When walking on the marble floor, the compressive strength of the cement mortar of the leveling layer shall not be less than 1.2Mpa.