Bottom and Fly Ash Used in Building and Construction

Summary

Coal ash produced from coal fired power plants can be separated into fly ash, which is a very fine powder material from coal combustion and bottom ash, which is much coarser. In the Map Ta Phut industrial estate fly and bottom ash from coal combustion are sent to The Sea Board Co Ltd to be used as an ingredient in concrete blocks. In addition the fly and bottom ash are sent to Pioneer Cement Plant to be used in cement production.

Industry

Industry Sector	Specific Industry
Energy utility sector	Coal fired power plant
Building & construction sector	Manufacturer of building and paving blocks
Building & construction sector	Cement manufacturer

Region

Map Ta Phut, Thailand.

Applied Technologies

• Not known

Triple Bottom Line Aspects (direct at operational level)

Economic	Potential savings in material purchase costs for cement and concrete block producers Reduced costs associated with disposal of fly and bottom ash
Environment	Landfill diversion or ash stockpiling Avoided impacts from extraction of raw materials
Social	Potential employment

Additional Comments

None.

References

• GTZ (2000) "Eco-Industrial Parks: A strategy towards Industrial Ecology in Developing and Newly Industrialized Countries", Industrial Estate Authority of Thailand and GTZ GmbH

Last Update

18 January 2007