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Insulation mortar, thermal insulation glazed hollow bead board

2015-10-29 16:45:12

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Introduction

Insulation mortar and insulation board of glass beads

Glazed hollow bead is from ore preheating and instantaneous high temperature baking expansion is made of an internal honeycomb structure of white granular materials. The preheating and roasting, rapid heating (above 1000 DEG C), ore evaporation of moisture, softening containing glassy sand internal expansion, the formation of porous structure, volume expansion 10-30 times of non-metallic mineral products.

A chemical indicator:

 

Chemical composition

 

SiO2  

 Al2O3 

 Fe2O3  

Na2O

K2O 

MgO 

 

Content

 

70-75%

12-14%

0.4-0.8%

3-4.5%

4-6%

0.1-0.2% 

Two, physical performance:

 

Physical items

 

 

Physical items

 

Normal temperature heat conduction coefficient

0.02450.048W/(m·K)

Moisture content

2-3%

 

High temperature heat conduction coefficient

 

0.0580.175W/(m·K)

Bulk density

40-80Kg/ m^3

Low temperature heat conduction coefficient

0.0280.038W/(m·K)

 

Volume expansion multiple

 

15-25

 

Use temperature

 

700800

 

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