Powder and Bulk Engineering
Thursday, August 28, 2014
Skip Navigation LinksHome) Item Details
Powder and Bulk Engineering is a technical publication devoted to readers in the bulk solids market, worldwide.
New Installations
Item Details:
Publication Date: 12/2003
Pages: 3
PDF Format
Related Item(s):
Recommended Item:
That's classified!

A company installs two new air classifiers and cyclones to produce marketable fly ash.

In 1942, the first major US repair using high-volume fly ash concrete was for a tunnel spillway at the Hoover Dam in Boulder City, Nev. The second major repair was for the Hungry Horse Dam in Columbia Falls, Mo., where fly ash concrete replaced about 35 percent of the existing cement. Since these two projects, fly ash, a by-product of burning pulverized coal, has developed into a necessity for high-quality concrete applications in the US. However, raw fly ash isn't always suitable for applications such as concrete. To use it, companies may first be required to classify it to a sufficient fineness to meet ASTM standards. When Phoenix Cement Co. [PCC], headquartered in Clarkdale, Ariz., built its newest fly ash beneficiation facility at the San Juan Generating Station in Waterflow, N. M., it needed to install a system to properly classify the fly ash generated by the power plant into a more marketable product.

To read this entire article:

You may purchase this article now for personal use. Simply click the Buy Item button above, enter your payment details, and download the article. It will be available to you for 7 days for viewing, printing, or saving for future reference. All articles are copyrighted by CSC Publishing, Inc. and cannot be used for commercial purposes without express permission in writing from the Publisher. This includes but is not limited to: web posting, printing, or sharing via email.


Your payment information is forwarded in an encrypted form, using 40- or 128-bit Secure Socket Layer technology, only to our payment gateway ( for processing.


To view an article, you must have Acrobat Reader installed on your computer. Click on the icon to download Acrobat Reader free of charge.

      Copyright 2014, CSC Publishing Inc. ALL Rights Reserved * Privacy policy