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Supply perlite
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Place of Origin:
China
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Type:
Others -
Genre:
Natural Stone -
sCode:
STPR1321505
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Place of Origin:
China- Perlite is a naturally occurring siliceous volcanic glass lava containing combined water, falling into the category of igneous rock. The distinguishing feature which sets perlite apart from other volcanic glasses is that when heated to a suitable point in its softening range, it expands from four to twenty times its original volume.
This expansion is due to the presence of two to six percent combined water in the crude perlite rock. When quickly heated to 1180~1350 ℃ , the crude rock pops in a manner similar to popcorn as the combined water vaporizes and creates countless tiny bubbles which account for the amazing light weight and other exceptional physical properties of expanded perlite.
This expansion process also creates one of perlite's most distinguishing characteristics: its white color. While the crude rock may range from transparent light gray to glossy black, the color of expanded perlite ranges from snowy white to grayish white.
Expanded perlite can be manufactured to weigh as little as 70kg per cubic meter making it adaptable for numerous applications.Since perlite is a form of natural glass, it is classified as chemically inert and has a pH of approximately 7. Perlite is mined and expanded all over the world. China is estimated to be one of the largest consumers and producers of crude and expanded perlite. However, there is very strong world wide production and consumption of perlite. Other leading countries producing perlite include U.S.A. , Greece , Japan , Turkey , Philippines , Hungary , Armenia , Italy and Mexico .
There are many uses for perlite. These uses can be broken down into three general categories: construction applications, horticultural applications, and industrial applications.
Construction Applications: Because of perlite's outstanding insulating characteristics and light weight, it is widely used as a loose-fill insulation in masonry construction. In this application, free-flowing perlite loose-fill masonry insulation is poured into the cavities of concrete block where it completely fills all cores, crevices, mortar areas and ear holes. In addition to providing thermal insulation, perlite enhances fire ratings, reduces noise transmission and it is rot, vermin and termite resistant.&n