Is there a sustainable development process for producing cement? The basic ingredient of limestone is generally readily available. Cement is basic as a building material, either in concrete, or in use as substitutes for wood products that are becoming increasingly costly, as is cement.
Glenn Ellis | 10.18.04 - 11:13 am | #

yes, try http://www.efm.leeds.ac.uk/ wasco...abstracts02.htm

and

http://www.cement.ca/cement.nsf/...3B? OpenDocument
Steve Spence | Homepage | 10.18.04 - 11:26 am | #