Place of Origin : Shi Jiazhuang
Brand Name : Tengchuagn Building material CO.LTD
Model Number : 975#
Certification : CE
Price : US$ 35-250/Metric Ton
Packaging Details : standard carton and ammount could be as buyers detailed request
Delivery Time : Shipment on board within 10 days after deposite.
Payment Terms : T/T , L/C
Supply Ability : 300, 0000 Ton per day
MOQ : 2000Square meter per day
1 Brief Introduction :
Vermiculite is a kind of layer structure of magnesium aluminum silicate secondary water metamorphic minerals, ore outside like mica, usually by black mica (gold) by the weathering of hydrothermal alteration effect or, it is because of the hot water expands flexure, form resembles leeches, therefore calls vermiculite.
Vermiculite, chemical formula M g × (H2O) [Mg3 × (AlSiO3O10) (H2O)], is a magnesium water inclouded aluminum silicate secondary metamorphic minerals of layered structure. It likes mica in form, and usually come from weathered or hydrothermal alterated black (gold ) Mica. It will present a deflection shape after heat expansion and water loss, liking a leech pattern in form , so it gets the name vermiculite
2 Applicable Place
Construction | 1- fireproof board |
2- loose fill insulation | |
3- construction coating | |
4- lightweight concrete | |
5- vermiculite plaster | |
Industry | 1- thermal insulation, refractory |
2- sound absorption loose filling | |
3- friction linings | |
4- gaskets or seals | |
5- packing materials | |
Agriculture | 1- horticulture |
2- soil improvement | |
3- fertilizer carrier | |
4- hydroponics | |
5- animal feedstuffs |
3 Advantage
1)Expansion ratio:5-20 times
2)Impurity: 10%
3)Moisture: 5% max
4)Heat-resistant,
5)corrosion-resistant,
6)well-ventilation,
7)water preservation,
8)poisonless,odorless,
9)low hardness,
10)burning-avoidness,
11)Lighter.
12)non-asbestos ,
13)Low density etc
4 Material Composition
Vermiculite is a natural, non-toxic mineral, swells of minerals under high temperature. It is a very rare mineral, belongs to the silicate. Its crystal structure is monoclinic system, from the appearance it looks like mica. Vermiculite is a granite hydration. It generally comes with asbestos. Because of vermiculite with ion exchange capacity, it is of great effect on soil nutrition.
5 Specification
Item | Specifications | Item | Specification |
Porosity: | 1100Kg/m3-1200Kg/m3 | Density | 220-280kgs/m3 |
Hardness | 1-1.5 | Compressive resistance | 100-150 Mpa |
Melting point | 1320°C-1370°C | asbestos | None |
Moisture conten: | 3%max | Antibioticity | Good |
Moisture absorbency | <;;;;2 | Corrosion resistance | Alkali-resitant |
Thermal Conductivity | 0.045 - 0.069w/m °C Under ambient conditions |
Vermiculite chemicals
SiO2 | Al2 O3 | Fe2O3 | MgO | H2O |
37-43 | 9-17 | 5-24 | 11-23 | 0.5-9 |
Expanded gold vermiculite size
Expanded gold vermiculite | 0.3-0.65mm,0.65-1mm,1-2mm 2-4mm,1-3mm,0.3-1mm,3-6mm,4-8mm200mesh 325mesh 20-40mesh 40-60mesh 60-80mesh |
Bulk density | 120-250kgs/m3 |
Impurity | 3%max |
Moisture | 0.1%max |
Expanded silver vermiculite size :
Vermiculite grade | Vermiculite size | Bulk density | Impurity |
Super fine | 0.3-1mm 20-40mesh 40-70mesh 70-100mesh | 120-150kgs/m3 | 2%max |
Fine | 1-2mm 1.5-2.5mm | 110-130kgs/m3 | 3%max |
Medium | 2-4mm | 90-120kgs/m3 | 3%max |
Large | 3-6mm 4-8mm | 90-120kgs/m3 | 3%max |
Powder | 150mesh200mesh 325mesh500mesh 600mesh | 110-250kgs/m3 | 1%max |
Special size is supplied as per customer’s demands
3.Exfoliated vermiculite chemicals
Composition | SiO2 | MgO | Al2O3 | Fe2O3 | CaO | K2O | ph |
Percentage | 37-42 | 11-23 | 9-17 | 3.5-18 | 1-2 | 5-8 | 7-11 |
1 A Not expansion golden silver: 0.3-1mm 1.5-2mm 0.7-2mm 2-4mm 4-8mm 3-6mm
B Silvery white: 0.1-0.6 0.3-1 1-2 2-4 3-6 4-8
Inflation, Two colors are the same 20-40mesh(目)40-60mesh 60-80mesh 1-2mm 2-4mm 3-6mm 4-8mm
6 FOB Price:US $ 35 - 250/ Metric Ton
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Vermiculite layer structure of magnesium aluminum silicate secondary water metamorphic minerals 2)Impurity: 10% Images |