Cement Newsline

GCP Applied Technologies Inc. presented a research paper on improving the quality of cement from vertical roller mills by reducing pre-hydration during the 25th ASEAN Federation of Cement Manufacturers Technical Symposium & Exhibition. The company also showcased two new cement additive ranges –...
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PCA Energy and Environment Awards

The Roanoke Cement Co. Troutville cement plant in Troutville, Va., received the Overall Environmental Excellence Award from the Portland Cement Association (PCA) and Cement Americas magazine as part of the 2014 Cement Industry Energy and Environment...

Features

New Radar Technology for Solids Level Measurement Handles Low Dielectric Materials and Tracks Very Rapid Changes. By Joe...
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Latest Digital Edition

Cement Scope

By Ganesh Rajput The rise in construction and building activities is the primary growth driver for the global green cement market. The demand for...
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Cement Products

The walls of steel and concrete silos have been known to wear or fail causing cracking, denting, buckling and bending that can lead to catastrophic collapse. For operations that want to detect uneven loading of silos that contribute to these failures, BinMaster offers a new software option that...
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Lehigh Plant Invests in Mercury Reduction System

Lehigh Southwest Cement Co. announced plans to install an innovative mercury reduction system at its cement plant in Tehachapi, Calif., early this year.

The company has successfully installed similar Activated Carbon Injection (ACI) systems at two other plants, including one at its Permanente Cement plant in Cupertino, Calif. The Cupertino plant was the first cement plant in California to apply this progressive reduction technology. As a result of the ACI system, the Permanente plant realized a 90-percent reduction in mercury emissions. The company expects a similar reduction at the Tehachapi plant once the system is in place.

Mercury emissions from cement manufacturing are primarily attributable to the naturally occurring concentrations found in limestone, the key raw material needed to make cement. Traces can be found in other local components as well, such as silica, and the plant had already taken steps to replace that material from the site with silica purchased from an outside source.

“Lehigh Southwest Cement Co. is serious about environmental sustainability and we are committed to working closely with the communities where we operate,” said Alan Rowley, plant manager at the Tehachapi facility.

“The planned implementation of this mercury-reducing technology clearly demonstrates this commitment and reflects our focus on minimizing the environmental impact of our operations.”

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