Quanzhoushi Quangang Anxing Stone co.,Ltd.
Tel:
15111174677
Fax:
0595-87065520
E-mail:
63179085@qq.com
Address:
Yifeng Road Pu An High Technology District Quangang District, Quanzhou City, Fujian Province, P.R. China
Web:
www.anxingstone.com
Fire resistance and freezing tolerance of natural stone
The marble is sedimentary or metamorphic carbonate rock, marble, dolomite, limestone, sandstone, shale and slate. Such as our famous white marble the Beijing Fangshan production dolomite, Dandong green compared with serpentine skarn.Similarly, as a stone mining various types of igneous rocks, such as granite, andesite, diabase, green diorite, gneiss called granite. Such as the the Beijing White Tiger Stream white granite granite, Jinan Green gabbro, Qingdao black granite, diabase. 1 fire resistance Are different kinds of stone, some stone under high temperature, chemical decomposition. (1) Gypsum: greater than 107 C decomposition. (2) Limestone, marble: in greater than 910 C, decomposition. (3) granite: composed of mineral uneven heating at 600 C when split. Freezing tolerance To minus 20 Celsius, the freezing of pore water expansion ratio of the original volume of 1/10, the rock can not resist the power of such expansion, there will be damage phenomena. General water absorption of less than 0.5%, not consider frost resistance. Expansion and contraction Stone is the thermal expansion and contraction, but if the heating and then cooling, the contraction can not be restored to the original volume, and will retain a part of the permanent expansion; U.S. arsenal have experimented from 00C to 1000C, and then down to 00C, measured permanent expansion increase of 0.02-O.045%.
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Quanzhoushi Quangang Anxing Stone co.,Ltd.
All rights reserved
TEL: 15111174677
ADD: Yifeng Road Pu An High Technology District Quangang District, Quanzhou City, Fujian Province, P.R. China
