2013年7月30日星期二

stone veneer china manufacturers  classification and how to choose



Some of the home decoration also used stone, the stone is made of natural stone or artificial stone good good? Natural stone and what classification and how to choose it? Xiaobian for everyone in this brief introduction.

First, the classification of stone

   Stone into natural stone and artificial stone veneer, natural stone by geological classification method is divided into igneous rocks, sedimentary and metamorphic rocks three categories; artificial stone artificial stone is divided into cement type, polyester artificial stone, artificial stone and composite sintered artificial stone.


Second, the technical nature of the stone:

A compressive strength. Non-homogeneous and anisotropic brittle materials. The standard test method specified in the standard specimen was measured average compressive strength of stone, the stone intensity is divided into nine levels.

(2) Apparent density. With stone mineral composition and porosity related, according to the apparent density can be divided into light and heavy stone stone two categories.

3 water resistance. Stone softened water resistance coefficient values according to their size into three classes, namely:

Stone high water resistance: softening coefficient greater than 0.9;

The water resistance of stone: softening coefficient between 0.7 --- 0.9;

Low water resistance of stone: softening coefficient between 0.6 --- 0.7

4 absorbency. Stone reduced strength after water absorption, frost resistance variation, increased thermal conductivity, water resistance and durability. The apparent density of the stone, small porosity, water absorption is also small.
5 frost resistance. Frost resistance and water absorption stone size are closely related. Generally large stone water absorption, frost resistance is poor. In addition, frost resistance but also with stone water saturation, freezing and thawing times relevant degree. Stone in the water saturation, the required number of freeze-thaw cycles, and the absence of weight loss through the seam does not exceed 5% strength loss does not exceed 25%, compared with antifreeze qualified.
edited by stone veneer china manufacturers

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