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Typically the stone properties of rock care industry mainly contain porosity,[url=http://www.jiahengstone.com/Angel-Headstones_c28]angel headstones[/url] permeability, absorption pace, durability, weathering 5 types.
I. porosity of natural stone [url=http://www.jiahengstone.com/Religious-Headstones_c114]muslim headstones[/url]
Stone is not a solid compound in the true sense. Emptiness fraction is the ratio associated with pores in the whole solid quantity. The porosity of stone is small , and the porosity of sandstone is the largest.
Void fraction comparison:
Marble 0. 4-1. 5
Record 0. 4-5
Marble zero. 5-2
Limestone 0. 6-31 [url=http://www.jiahengstone.com/Religious-Headstones_c114]jewish headstones[/url]
Quartzite 0. 4-3. on the lookout for
Sandstone 0. 5-35
A couple of, stone permeability
What is relevant to the porosity of gemstone is its permeability. Permeability mainly depends on the degree of on-line between the pores of the complete stone and the capillary construction. The size, structure and directionality of these connections directly affect their particular permeability. Moisture, steam, in addition to liquid can enter the jewel through siphon action regarding pores or pores. Consequently , the size and shape of the particular pores and pores in the stone are an important factor inside the aging of the stone.
About three, stone absorption rate
Often the absorption rate is an important determinant of whether stone material will be rusted. The size of the follicles, the direction, the on the web connectivity between the pores and the amount of surface polishing are the definitive factors in the rate involving stone absorption. In the repair of stone, stone absorption charge than the real voidage is somewhat more important, more prone to corrode than natural stone finished stone, natural stone happens because there are more pores exposed, as well as highly polished stone shut down most of the pores leads to fewer absorption. Absorption rate%
Corian 0. 2-0. 5
State 0. 1-1. 7
Pebble 0. 2-0. 6
Limestone 0. 2-9
Quartzite zero. 1-1. 4
Sandstone zero. 2-12
Four, stone toughness
The durability of stone will depend not only on the material and also structure of the stone, but in addition on the environment used. Environmental surroundings includes indoor, outdoor, straight installation, horizontal installation, weather, humidity, and human stream. Mainly in the following a couple of aspects play a role.
Sun: if the stone is used for backyard exposure to sunlight, the organic and natural matter inside the stone may gradually change and reduce or discolor.
Humidity: many stone contains moisture very sensitive minerals under wet problems will rust or shade change, will lead to several spots or markings.
The interaction connected with stone with physical, substance, or biological processes can adjust the appearance of stone.