Use of Fly Ash in Road Construction

Summary

Fly ash is a by-product from various coal fired power facilities in the Taiwan eco-industrial area is a very fine powder material. The fly ash is being supplemented into the road base mixture, instead of using high quality sand and other materials.

Industry

Industry Sector	Specific Industry
Energy utility sector	Coal fired power plants
Building & construction sector	Road construction

Region

Taiwan.

Applied Technologies

• Not known

Triple Bottom Line Aspects (direct at operational level)

Economic	Potential savings in material purchase costs for road base manufacturers Reduced costs associated with disposal of fly ash
Environment	Less ash being stockpiled and reduced associated environmental impacts Avoided impacts from extraction of raw materials
Social	Potential employment

Additional Comments

None.

References

• Su, T., Cheng, C. and Hwang, J. (1999) "Transformation of ones waste into another resource: A corner stone of industrial ecology", in Global Competiveness through Cleaner Production (2nd Asia Pacific Roundtable on Cleaner Production), Brisbane, Australia

Last Update

18 January 2007