الوصف

Vermiculite Description: Essentially vermiculite is one member of the micaceous hydrated silicate minerals, resembling mica in appearance. When heated to a temperature of about ******0℃, as water flashing into steam, raw vermiculite instantly expands (exfoliates) up to ****0 times, maximum *0 times its original bulk volume, and during expansion its color change from gold brown into silver white. It has the action of fireproof, heat insulating, sound and moisture absorbing, non-toxic, lightweight and disease free and so on. Properties: With the characteristic of light Weight, thermal stability and inertness, disease free and non toxic, non abrasive, highly (water, nutrients, air and so on) absorption, insulates and minimizes soil temperature fluctuation, won’t deteriorate in storage, vermiculite becomes the new and ideal material in construction, industry and agriculture. A．Chemical compositions: Element SiO2 MgO Fe2O3 Al2O3 CaO K2O Content% *7－*2 *1－*3 5－*8 9－*7 0.5－0.8 5.5－7 B. Specification: Specification Size（MM） Expansion Coefficient Impurity Water Sand SWT－3 **5 >5.5 <5 <5 <*5 SWT－4 1.**2.5 >5.5 <5 <5 <*5 SWT－5 0.**1 >5.5 <5 <5 <*5 SWT－6 0.**0.7 >5 - <5 - C. Applications of Vermiculite in Different Industy In Construction： In Industry： In Agriculture： ***** Board ***** Insulation, Refractory 1.Horticulture 2.Loosefill Insulation 2.Sound Absorption Loose Filling 2.Soil Improvement 3 Construction Coatings ***** or Seals ***** Carrier 4 Lightweight Concretes ***** Linings 4.Hydroponics 5. Vermiculite Screeds 5.Packing Materials 6.Vermiculite Plasters 6.Animal Feedstuffs