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Welcome to CONCRETE CURRENTS, the electronic newsletter from
Concrete Products magazine.
For additional industry news, technology, and highlights from the latest
issue of Concrete Products, please visit www.concreteproducts.com
Submissions for upcoming issues of CONCRETE CURRENTS or Concrete
Products can be directed to Editor Don Marsh, don.marsh@penton.com or
312/840-8483.
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NRMCA
tells lawmakers of EPA-proposed coal ash designation
pitfalls
Source: National Ready Mixed Concrete Association, Silver
Spring, Md.
Testifying July 22 on Capitol Hill, NRMCA President Robert Garbini
noted that a potential Environmental Protection Agency plan to classify
coal ash as a hazardous waste would exert a significant economic toll on
producers nationwide, especially small operators, and make beneficial
use of ASTM C618 material in concrete more onerous. Click
here for full story
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EPA
sets coal ash rule public hearings
Source: Environmental Protection Agency
The EPA Office of Resource Conservation and Recovery is accepting
preregistration from individuals wishing to issue statements on the
proposed rule, “Identification and Listing of Special Waste: Disposal
of Coal Combustion Residuals from Electric Utilities.” The agency will
hold public hearings August 30–September 16 in Arlington, Va.; Denver;
Dallas; Charlotte, N.C.; and Chicago, with morning, afternoon and
evening sessions. Click
here for full story
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Pervious
pavement pivotal to Cardi Materials’ $215K settlement with
EPA
Sources: Environmental Protection Agency Region 1, Boston;
CP staff
A proposed settlement with EPA New England Region calls for Cardi
Materials, LLC to pay a $55,000 civil penalty; eliminate process water
discharges at its Warwick, R.I., ready mixed plant; perform a
comprehensive environmental audit to ensure the facility’s compliance
with federal laws; hire certified personnel for additional stormwater
discharge monitoring, reporting and permit oversight; and, provide
operational employees training in stormwater management. Click
here for full story
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Canadians
test CO2 capture via concrete block curing
Sources: Canadian Concrete Masonry Producers Association,
Toronto; National Concrete Masonry Association, Herndon, Va.
Researchers at Montreal’s McGill University are gauging the
feasibility of curing concrete masonry units with carbon dioxide, which
can react with cement to form a hybrid microstructure of calcium
carbonate and calcium silicate hydrate, the main binding product of
hydrated powder. Click
here for full story
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CO2-capturing
aggregate processor Calera lands $19.8 million DOE
grant
Sources: U.S. Department of Energy; CP staff
Los Gatos, Calif.-based Calera Corp. is poised to design, build and
operate a system that mineralizes carbon dioxide from flue gas, yielding
carbonate-bearing aggregate for construction fill or cement mill raw
feed. The company garnered a nearly $20 million grant—drawn from DOE
stimulus allocations—based on a small-scale CO2 absorption facility at
Moss Landing, near its northern California headquarters. Click
here for full story
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Shareholder
agreement stabilizes TXI board, outlook
Sources: Texas Industries, Inc., Dallas; CP
staff
An 18-month period that saw newer TXI shareholders challenge capital
expansion strategies and promote board and bylaw changes appears to have
run its course, allowing management to fully concentrate on cement,
aggregate and ready mixed operations headed to recovery in 2011 and
beyond. Click
here for full story
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