A New York investor announced, at 2011 World of Concrete last month in Las Vegas, an industrial-scale process economizing the grinding of fly ash, or secondary grinding of ground granulated blast furnace slag or portland cement, to 6-, 3- or 1-micron median particle sizes. With $30 to $75 per ton processing plus $20 to $100 per ton raw feed (fly…
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ARRA spending decreased in November
According to a recently released Portland Cement Association Market Intelligence report, 60.6% of total American Recovery and Reinvestment Act (ARRA) highway funds have been dispersed through November, compared to 56.7% in October. November highway stimulus spending was $1.047 billion, an 11% decrease from October’s spending rate. Monthly spending levels in September were the highest level to date. Spending has averaged…
Read MoreCemex carbon footprint tool paces sustainability curve
A tool under phased, global deployment enables Monterrey, Mexico-based Cemex, S.A.B. de C.V., to measure greenhouse gas emissions tied to production and delivery of cement, ready mixed and aggregate products. A first of its kind in building materials, it assists customers calculating a project’s carbon footprint. Cemex will begin publishing product-specific carbon content in selected operations during 2011, with rollout…
Read MoreReport Ranks Concrete Paths To Carbon Reduction In Cement-Based Products
Paving the Way to Cost, Energy, and Carbon Savings in the Concrete Industry, a new report from Boston-based Lux Research Inc., assesses an expanding range of options designed to make concrete greener through improved cement-production techniques, admixtures affording lower portland cement dosages, and supplementary cementitious materials, plus building energy efficiency and performance technologies.
Read MoreLehigh Cement’s Alabama plant celebrates new silo
The Lehigh Cement Co. plant in Leeds, Ala., celebrated in October the commissioning of its 20,000-metric ton, state-of-the-art, multi-compartment, environmentally friendly silo. The festivities began with presentations by company management about the construction and unique features of the silo.
Read MoreHolcim (US) Trident plant celebrates 100 years
Approximately 200 employees, family, retirees, friends, and local dignitaries gathered in September, to celebrate the 100th anniversary of the Holcim (US) Inc. cement plant located in Trident, Mo. The plant also used this celebration as an opportunity to bring awareness to the environment by incorporating a Conservation Day. “The Centennial celebration is an experience of a lifetime for the company,…
Read MoreGovernor recognizes Salt River Materials for role in energy-wise, Habitat home
Contribution of product, engineering services and site labor to Habitat for Humanity Central Arizona’s Net-Zero Energy home, enclosed in a panelized concrete forming system, garnered Scottsdale, Ariz.-based cement and aggregate producer Salt River Materials Group an “Excellence in Economic Development and Energy Leadership Award” from Arizona Governor Jan Brewer. Honoring partnerships, organizations and companies that implement development strategies for their…
Read MoreAsh Grove Kansas obtains Haz-waste permit renewal
A Hazardous Waste Permit renewed by the Kansas Department of Health and Environment (KDHE) and U.S. Environmental Protection Agency Region 7 allows Ash Grove Cement’s Chanute facility to continue container and tank storage, plus kiln burning, of hazardous waste. Issued pursuant to a comprehensive technical review and a late-2009 public hearing, followed by minor modifications to a preliminary draft, the…
Read MoreAsh Grove, Neb. Wildlife to open education center
Representatives from Ash Grove Cement Co. and Nebraska Wildlife Rehab, Inc. (NWRI) announced plans recently for NWRI’s first Wildlife Education and Rehabilitation Operations Center in the former site of Ash Grove’s original Nebraska office building located near the Omaha metro area in Louisville. Ash Grove is allowing NWRI to use the 4,500-sq-ft historic office on a long-term basis at a…
Read MoreNew group counters regulatory action hovering over fly ash
Prompted by increased environmentalist attacks on coal ash and signals by the U.S. Environmental Protection Agency that it may regulate coal ash as a hazardous waste, a new advocacy group—Citizens for Recycling First—will counter moves threatening the material’s use in construction. Although the failure of a coal ash disposal impoundment in December 2008 triggered an outcry among environmentalists, EPA remains…
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