石家庄永恒建材有限公司

Contact

Company:Shijiazhuang Eternal Building Materials Limited Company
ADD:2604-1 Aerkadiya, PingAn Street and HePing Road, Shijiazhuang, Hebei, China PT:050000
Tell:0086-311-69032602
Fax:0086-311-85119401
Email:yonghengmaterial@vermiculite-china.com
wisdombai@vermiculite-china.com
yonghengstuff@vermiculite-china.com
yonghengmaterials@vermiculite-china.com
vermiculite-china@vermiculite-china.com

◆ Lava stone is formed when the lava stream flows and cools down with the air remains and becomes small holes in the final rock. Lava stone owe the special features such as sound absorbing and insulation,heat absorbing and preservation,water absorbing and slide –proof,acid & alkali proof ,“breathing function”.

Features:
1) not radiation
2) not permeation
3) not poisonous and not odor
4) green and environmental-protection products with high quality
5) hyperfine and with high quality products
6) be used in interior decoration,outside decoration and paving public square .

Application:
1) It is called as functional stone which can be used safely in any place for its low, radiation,wind erosion –proof and durability,sound absorbing and noise lowering,water absorbing and air humidity keeping,dizzy light avoiding,etc to improving our environment and feelings,
2) Therefore,this volcanic stone material can be used widely in outer wall decoration,such as road ,square paving ,living distract gardening,etc to meet our needs of nature,primitiveness,simplicity,classicalism,
3)We can supply various kinds of finished volcanic stones with differently treated surfaces,such as honed ,polished,bush hammered ,etc.with all kinds of shapes and thickness.

◆Volcanic filter material mainly used for water treatment, with irregular partical shape, dark brown or beige color , porosity mass. The particle size we offer are 2-4mm,3-6mm,5-12mm,12- 18mm or according to customer’s requirement.

Technical indicators

index Unit Test result Index Unit Test result
Volume weight Kg/m3 740 Surface acreage m2/g 13.6-25.5
Density __ 1:1.29 Compression strengh Mpa 5.08
Water content % 0.9-1.0 Shear strengh Mpa 3.98
Porosity % 73-82 Friction loss rate % ﹤1
Organic matter removing % ﹥80 membrane-forming time hour 27
COD removing % ﹥85 HCL soluble % ﹥801.0
BOD removing % 75-93 NH4,N2 removing % ﹥85