Stone basic knowledge part
Jun 09, 2021
Q: are the classification methods of natural stone in China consistent with those in the world?
Answer: yes, the natural stone material classification of our country now is consistent with the classification of international natural stone material.
Two, ask: natural stone is divided into several categories, which are specific categories?
Answer: in the standard that concerns natural stone material classification in our country, natural stone material is divided into 5 kinds.Specific for: granite, marble, limestone, sandstone and SLATE.
Three, ask: marble and flax stone is what kind of stone?
Answer: area of our country harbor, Macao, Taiwan usually calls marble marble, granite calls hemp stone.
Four, ask: how many types of artificial stone, which are specific?
Answer: because the scope of artificial stone is wide, the industry involved is much, so now the home did not develop a unified standard.But we usually will be divided into four categories of artificial stone, namely: resin type artificial stone, composite artificial stone, cement type artificial stone and sintering type artificial stone.In resin type artificial stone, we are divided into artificial marble and artificial quartz stone according to the different characteristics of aggregate.
Five, ask: white sand beige, French wood grain stone, Portuguese beige these three kinds of stone belong to what kind of stone?
A: All three stones belong to the limestone type.
Q: What kind of stone is lime stone?
Answer: Lime stone is from English limestone transliteration, is a general term of limestone species.
Seven, ask: culture stone is what stone?
Answer: culture stone is a kind of stone with natural original style decorative effect.It is divided into natural and artificial two categories, in which the natural category is mainly composed of SLATE and sandstone.
Eight, ask: stone before installation and installation for a period of time there is no problem, but after using for a period of time why there will be a large number of cracks phenomenon?
Answer: because there are physical broken lines or dark cracks in the stone, under the action of the shrinkage force of dry hard mortar, the physical broken lines or dark cracks are cracked.
Nine, ask: why does the stone appear a lot of convex and concave damage after a period of use?
Answer: due to the existence of a large number of clay impurities such as calcium sulfate in this kind of stone, these impurities meet water after oxidation reaction, resulting in loose material, volume expansion, and finally produce peeling phenomenon, resulting in a large number of concave and convex damage on the stone surface.
Q: which physical and chemical properties of stone materials are of practical significance to us?
Answer: volume density, hardness, compressive strength, flexural strength, dry and wet state deformation, water absorption, acid and alkali resistance, weathering resistance, etc.
