Stone paving talking about, mainly focusing on the ground stone, stone paving.
It is specifically divided into the following three layers:?
1, the bottom layer: shavings layer, cement and large sand mixed at a ratio of 1:2, add water to half dry, the standard is not kneaded by hand into a ball, will be loose. Then evenly spread on the floor.
2, intermediate layer: Bonding layer (1) cement fixing method: cement mixed with water, dilute some, brush on the back of the stone. Through the cement bonding and reverse osmosis, bond with the bottom cement mortar to fix the stone. (2)Adhesive fixing method: use special stone adhesive, or marble adhesive, adhesive, fixing stone.
3, the top layer: is the stone, stone surface coated with cement or adhesive, rubber hammer knock, fixed molding. The reason for the breakage is the road surface, good stone, paving will break, the main problem is in the plate fixed, molding this step. Which stone, fragile. Granite pavement installation is not prone to problems, give a problem, usually marble.
And the more high-grade marble, the more prone to breakage and cracking. Marble texture is more developed, the color is more characteristic, the decorative effect is better, the price is higher.
Therefore, the presence of obvious cracks, dark cracks, sutures, crumbly structure of the marble, the most likely to break when paving.