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Cenosphere


CENOSPHERES are hollow ceramic microspheres found in flyash, a natural by-product of coal combustion during the generation of electric power. Small and hollow, micropheres are used as functional fillers or extender in the manufacture of plastics, paints, resins, thermal coatings, epoxies, mastics; light weight aggregate for cement, ceramics and other construction products. Because cenospheres often replace mined materials, they can significantly lower production costs. Simultaneously, cenospheres can benefit finished product properties by increasing durability and functionality. Cenospheres are environmentally: 100% recycled.

Cenospheres are made up of silica, iron and alumina. Cenospheres have a size range from 1 to 500 microns with an average compressive strength of 3000+ psi.. Colors range from white to dark gray. They are also referred to as microspheres, hollow spheres, hollow ceramic microspheres, microballoons, or glass beads

Lower Viscosity , Hardness and abrasion resistance

Cenosphere applications offer many benefits over mined materials, primarily cost and weight reduction. Of their many uses, microspheres are used as light weight aggregate in oil well cements, sound proofing, Thermal Insulation, interior and exterior paints, injection molding of plastics, automotive brake linings, and are even used by NASA in the nose of the Space Shuttle. Desirable properties include, controllable density for buoyancy, improved flow, excellent thermal insulation, light weight, and high strength. Environmentally friendly and 100% they aid not only the coal fired power plants control their pollution, but make their use Earth conscious.

Processed Cenospheres are chemically inert and exempt from classification as hazardous waste as determined by the United States Environmental Protection Agency. In addition they are considered "re-claimable" under the Resource Conservation and Recovery Act (42 USC 6901-699-15).

Cenosphere Advantages

Reduced weight, increased filler loadings, cost saving, improved flow characteristics, less shrinkage and warpage, less water absorption, buoyancy, flame retardance, chemical resistance, sound and thermal insulation, density management.

GR-Duratech Cenosphere Specifications

 

 

 

 

 

 

 

 

 

 

 

Item

XS-10/300-85

XS-10/150-85

XS-150/300-95

 

Guaranteed

Tested

lot 04-6001

Guaranteed

Tested

lot 03-6004

Guaranteed

Tested

lot 03-6004

Chemical Content

SiO2

55-65%

61.30%

55-65%

56.63%

55-65%

56.83%

Al2O3

20-35%

26.80%

20-35%

33.00%

20-35%

33.29%

Fe2O3

4% Max

1.10%

4% Max

2.84%

4% Max

2.94%

CaO

2.0% max.

0.75%

2.0% max.

1.08%

2.0% max.

1.19%

MgO

2.0% max.

 

2.0% max.

 

2.0% max.

 

K2O

4.0% max.

 

4.0% max.

 

4.0% max.

 

TiO2

1.5% max.

 

1.5% max.

 

1.5% max.

 

Size

10-300 micron 90% min

10-150 micron 90% min

150-300 micron 90% min

Specific Gravity

0.6-0.85

0.7848

0.6-0.85

0.801

0.75-0.95

0.919

 

GR-Duratech has stock pile of cenosphere in Houston TX. Regular packaging is 1,100 Lb super sacks or 50 Lb paper bags, custom packaging available, bulk tank delivery available.

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