More from Therese Dunphy

Therese Dunphy has been covering the aggregates industry since 1991 and helped launch Aggregates Manager in 1996.

Lafarge’s Spy Hill Plant produces material for growing Calgary market

Feb 16, 2015

Lafarge Canada Inc. has 10 active aggregates operations around Calgary, including five mobile plants, two fixed wash plants, two mobile wash plants, and its flagship operation at Spy Hill. The 640-acre property has a large fixed plant and several mobile ...

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Aggregates producers take to the Hill to protest Waters of the U.S. rule

Feb 11, 2015

Aggregates producers take to the Hill to protest Waters of the U.S. rule

Ditch the rule. That was the message as a dozen aggregates producers who are members of the National Stone, Sand and Gravel Association (NSSGA) took to Capitol Hill this week  to talk to their Congressional representatives about the Environmental Protection Agency's (EPA) ...

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Atlas Copco to exit crushing and screening business

Feb 10, 2015

Atlas Copco to exit crushing and screening business

Atlas Copco announced that it will discontinue its Powercrusher business, which manufactures and sells mobile crushers and screeners.  “We are discontinuing this business as it does not fit strategically for us,” says Johan Halling, president of Atlas Copco’s Mining and Rock Excavation Technique business area, in a ...

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Fatality spike will lead to increased MSHA enforcement, outreach

Feb 06, 2015

Fatality spike will lead to increased MSHA enforcement, outreach

Regulators and operators should feel a sense of urgency when it comes to reversing the spike in metal/non-metal fatalities. That was the message shared by Joeseph A. Main, assistant secretary of Labor for Mine Safety and Health, and Neal Merrifield, ...

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State and Province News

Feb 03, 2015

California The Napa County Planning Commission will meet on Feb. 18 to continue its review of a request to expand Syar Quarry. According to the Napa Valley Register, the operator wants to expand its 497-acre operation by 124 acres and increase ...

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Rollouts – February 2015

Feb 03, 2015

Rollouts – February 2015

Tier 4 articulated dump truck Komatsu introduces its HM300-5 articulated dump truck. Featuring 324 net horsepower, the truck is powered by a Komatsu SAA6D125E-7 Tier 4 Final engine. With a 30.9-ton payload and a gross vehicle weight of 117,892 pounds, the truck ...

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Je Suis Charlie

Feb 03, 2015

Je Suis Charlie

Although I typically write about aggregates-specific issues on this page, I’m taking a bit of a break this month to talk to you about the folks on the other side of these pages, professional journalists such as those who write ...

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Make plans to attend AGG1

Feb 03, 2015

Make plans  to attend AGG1

It’s time to finalize your plans to attend the AGG1 Aggregates Academy & Expo, which is, once again, co-located with the World of Asphalt. The event is scheduled for Tuesday, March 17, through Thursday, March 19, at the Baltimore Convention ...

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Plan and prepare for a safe 2015

Jan 09, 2015

Plan and prepare for a safe 2015

In 2014, the Mine Safety and Health Administration (MSHA) reports that 24 fatalities occurred at metal/non-metal mines; the highest number of fatalities on record since 2010. Over the last five years (2010-2014), several categories of accidents have consistently accounted for fatalities, including ...

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Terex offers its largest modular screen

Jan 07, 2015

Terex offers its largest modular screen

Terex MPS rolls out its largest modular screening unit to date, the MHS8203 Horizontal Screen Module. The unit features the new Terex Cedarapids LJ-TSV 8- x 20-foot screen with El-Jay oval stroke action. Its easy-to-use blending gate system and rolling ...

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25 Days of RollOuts: Volvo’s EC250E Excavator

Jan 06, 2015

25 Days of RollOuts: Volvo’s EC250E Excavator

The Volvo EC250E crawler excavator delivers a 5-percent improvement in fuel efficiency compared to past models. The gain is attributed not only to the Tier 4 Final Volvo engine, but also to a range of features that optimize flow and ...

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California aggregates tax could be a nightmare for operators

Jan 05, 2015

In most aggregates operations, producers look for ways to shave pennies, nickels, and dimes from their cost per ton. After all, in a traditionally low-margin, high-volume market, those pennies can add up to serious bucks on an annual basis. Now, imagine ...

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