Exfoliated expanded vermiculite , vermiculite board

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Packaging & Delivery

Packaging Detail:15kg, 20kg, 25kg bags, ton bag
Delivery Detail:within 15days after 30% deposit reciept

Specifications

1.Exfoliated expanded vermiculite 
2.Factory,mine 
3.Color:golden,silver 
4.China Non-metallic industrial mineral Assocition

 Exfoliated expanded vermiculite introduction :

Vermiculite is a layer-structured metamorphic rock of gibbsite silicate. Rich in magnesium, it comes from hot-liquid-eroded or weathered phlogopite. When it is heated to lose water and expands, lt turns curvingas a leech. Therefore is called vermiculite.lt can be divide into original vermiculite and expanded vermiculite. color it can also be divided into golden vermiculite and white vermiculite.

 Exfoliated expanded vermiculite physical and chemical quota :

Being differently hydrated and oxidation, the same vermiculite may have different chemical compositions .Generally, its chemical compositions are as follows:

 

Vermiculite Chemical quota: Mg x (H2O)(Mg3-x)(ALSiO3O10)(OH2)

Molecular
formula

SiO2

MgO

AI2O3

Fe2O3

FeO

K2O

H20

CaO

PH

Loss in buring 800°C/Hour

Name

Silicon
dioxide

Magnesium
oxide

Aluminium
trioxide

Iron
trioxide

Irnon
oxide

Potassium
oxide

Hydrogen
oxide

Calcium
oxide

PH

 

4.5-7.5

Content%

37-42

11-23

9-17

3.5-18

1-3

5-8

7-18

1-2

7-8

 

Vermiculite Physical properties :

Vermiculite sheet Density

Expanded vermiculite Porosity

Hard-ness

Melting
point

Compressive
resistance

Index of
refraction

Moisture
content

Moisture
absorbency

Anti
conge-lation

Antibio-ticity

Corrosion
resistance

Kg/m3

Kg/m3


°C

Mpa

Ng=1.525-1.561

%

%




1100-1200

110-280

1-1.5

1320-1370

100-150

Ng=1.545-1.581

7

< 2

good

good

Alkali-
resitant

 

1.reletive humidity 100% 24H 2. Frozen and melte for 15 minustes in 20 under zero, it’s aize won’t chenge

Norms of raw vermiculite (Implementation standards JC/T810-1996)

Categories

No.1

No.2

No.3

No.4

No.5

No.5

Size mm

8-16

4-8

2-4

1-2

0.5-1

< 0.5

 

Sand contend % ≤10≤12≤15≤15-20 Expansion coefficient 8multiples≥7-8mutiples>76.5-7 

 

 

Specifications of Expanded Vermiculite (Under the standards of JC/441-1996)

6-12mm 3-6mm 2-4mm 1-3mm 16-40mesh 20-40mesh 40-80mesh 60-100mmesh200mesh 325mesh 400mesh


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