Cheap Granite

Cheap Granite

Product Details

Cheap Granite

As a kind of high-grade building decoration material, stone is widely used in interior and exterior decoration design, curtain wall decoration and public facilities construction.At present, the common stone on the market is mainly divided into natural stone and artificial stone, marble.
Natural stone material is divided into SLATE and granite by physical and chemical characteristic quality.Artificial stone according to the process is divided into terrazzo stone and synthetic stone.Terrazzo is made of cement, concrete and other raw materials.Synthetic stone is natural stone stone as raw material, plus adhesive, such as pressure, polishing.The latter two are made artificially, so the intensity is not as high as the value of natural stone.Stone is the high-grade products of architectural decoration materials, natural stone is generally divided into granite, SLATE, sandstone, limestone, volcanic rock, etc., with the continuous development and progress of science and technology, artificial stone products are changing with each passing day, the quality and beauty has not inferior to natural stone.With the development of architectural design, stone has already become one of the important raw materials for building, decoration, road and bridge construction.

Fire resistance
All sorts of stone material are different, some stone material fall in action of high temperature, produce chemical decompose.
(1) gypsum: decomposed at more than 107 ℃.
(2) limestone and marble: decompose when the temperature is greater than 910℃.
(3) granite: cracking due to thermal imbalance of constituent minerals at 600℃
Expansion and contraction
Is also thermal expansion and cold contraction, but if the heat after cooling, its contraction cannot return to the original volume, and must remain part of the permanent expansion;The United States Arsenal has tested from 0℃ to 100℃, and then to 0℃.
Frost resistance
When the temperature reaches minus 20 ℃, the water in the pores will freeze and expand by 1/10 of its original volume. If the rock cannot resist the force of such expansion, damage will occur.If the water absorption rate is less than 0.5%, the frost resistance will not be considered.
The durability of
The stone material has the good durability, the structure which constructs with the stone material has the permanent possibility.Ancient people have long recognized this point, so many important buildings and memorial structures are built of stone
The compressive strength
The compressive strength of stone material will be different due to the factors such as the uniformity of mineral composition, crystal thickness, cementing material, load area, load effect and cleavage Angle.Other things being equal, a dense material in which crystalline particles are usually small and stick to each other has a higher strength.Dense volcanic rocks show no difference in compressive strength (extremely low water absorption rate) when dry and saturated with water. For porous and water-fearing cemented rocks, there are significant differences in dry and wet strength.
There are two kinds of stone materials for building decoration, natural stone and artificial stone, which are mainly made of natural stone.

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