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Crude vermiculite for building material
Crude vermiculite for building material

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Crude vermiculite
Commodity: expanded vermiculite
Bulk density:60-90kg/m3
Application:Building material
ISO9001-2000 COMPAN

Crude vermiculite for building material 

 

 

 

1.Chemical Composition of Vermiculite  

Item

SiO2

MgO

Fe2O3

Al2O3

CaO

K2O

H2O

PH

Content %

37-42

11-23

3.5-18

9-17

1-2

5-8

5-11

7-11

 

2.Silver Vermiculite

Size

(mm)

Density

(g/ml)

Specification

(%)

Moisture

 (%)

Impurity

(%)

Expansion

rate

(ML/G)

2-4

0.7-1.1

85min

5max

8max

8min

3-6

0.8-1.1

85min

5max

8max

8min

6-12

0.8-1.1

85min

5max

10max

10min

 

3. Golden Vermiculite

Size (MM)

Expansion rate

(ML/G)

Impurity

(%)

Moisture

 (%)

Sand Content

(%)

2-4

5min

8max

<3

<15

3-6

8min

10max

<3

<15

6-12

10min

15max

<3

<15

 

4. Main Property of Expanded Vermiculite

Bulk Density

(kg/m³)

Thermal Conductivity

(W/{M·K})

Fire-Proof

(°C)

Temperature in Use

(°C)

Water Absorption

(%)

Anti-freezing

 

Sound Absorption

 

Corrosion Resisting

 

60-200

0.047-0.081

1300-1350

900-1000

26.5-40.6

The parcicle size has no change,when it is freezed 15 times under -20°C.

0.53-0.63

Alkali-resisting

5.The panorama of the factory

 

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