(1) Classification, characteristics and use of stone
1, natural stone
Marble: A natural ore with a textured structure, natural texture and rich colors. However, due to the texture of the structure, the density is low, and it is easy to break at the grain.
Granite: A natural ore whose internal structure and pattern are crystalline and hard, with a small color difference compared to marble.
2, artificial stone
Yakelite: A chemical resin composite material used in kitchen countertops. Easy to form, good waterproof, no color difference, but easy to scratch.
Synthetic stone: Made of marble powder and resin, the texture is hard.
Microcrystalline stone: The main component is similar to glass products. The surface is smooth, the color is beautiful, and the texture is hard. It is mainly used for laying the ground. However, due to the hard texture, it is not easy to reprocess and the price is high.
(two) how to buy stone
1. Generally speaking, the uniform fine material structure of the stone has a delicate texture; the coarse grain and the unequal grain structure stone have poor appearance effect, the mechanical properties are not uniform, and the quality is slightly poor.
2, due to the influence of geological effects in natural stone, often produce some fine pulsation, micro-cracks, stone is most likely to break along these parts, should be removed. As for the lack of edges and angles, it is more important to affect the appearance.
3, also pay attention to the measurement of the size of the stone, so as not to affect the splicing or resulting in the pattern, pattern, line deformation after splicing, affecting the decorative effect.
4. Listen to the tapping sound of the stone. The stone with good quality, uniform internal density and no micro-cracking is crisp and pleasant; on the contrary, if there is micro-crack or fine vein inside the stone or the contact between the particles becomes loose due to weathering, the knocking sound is rough.
5, you can drop a small drop of ink on the back of the stone. If the ink is quickly dispersed and leached everywhere, it means that the internal particles of the stone are loose or there are micro-cracks, and the quality of the stone is not good.
(III) Analysis of construction points and common problems of stone
1. Construction points
When installing the stone, the first thing to pay attention to is to measure the size. Most of the customers who make the marble are decorating the window sill or the door stone in their own home. The customers who make the countertop and the floor are only a small part; so there is the irregularity of the window sill. Be sure to pay attention to the size of the window sill. It is best to use white cement, but pay attention to anti-alkali. It is recommended to brush (six sides) and wax regularly.
2, common problems
Marble and granite pay attention to the use of oil and chemicals on the surface. Artificial stone will turn yellow in a year or so (more obvious in the sun), seams will be cracked after half a year to one year, and it will be dull after too long. Granite has a small color difference and a large marble color difference.
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