Tag: weight ratios: Page 4

Roadbuilding
Section 103(k) Shutdowns
MSHA’s expansive use of Section 103(k) orders is a derogation of the purpose and intent of an enforcement tool.
March 21, 2012
Safety
Section 103(k) Shutdowns
MSHA’s expansive use of Section 103(k) orders is a derogation of the purpose and intent of an enforcement tool In the last year, the Federal Mine Safety and Health Administration has shut down several mines and imposed significant operating costs on mine operators by expanding the scope and use of Section 103(k) orders. This troubling […]
March 21, 2012
Roadbuilding
The Nation’s Top 25 Construction Aggregates Producers
In 2010, the market appeared to bottom out with production continuing its downward trend and average unit values down for the first time since 1998.
March 21, 2012
Roadbuilding
AGG1: Something Old, Something New
A hard-hit construction industry makes it tough to grow a show, but the 3-year-old AGG1 is creating a place for education and the latest innovations.
March 21, 2012
Business
AGG1: Something Old, Something New
A hard-hit construction industry makes it tough to grow a show, but the 3-year-old AGG1 is creating a place for education and the latest innovations.   Now in its third year, the AGG1 trade show may be in a holding pattern in terms of growth, but it’s setting a record in exhibitor square footage. The […]
March 21, 2012
Roadbuilding
Joints, Humpback Whales and Quarries
Knowledge of geological joints is essential in assuring the economic extraction of crushed stone from quarries, and detailed studies of joints and other planes of weakness should be included in the exploration and quarrying process.
March 21, 2012
Home
Joints, Humpback Whales and Quarries
Knowledge of geological joints is essential in assuring the economic extraction of crushed stone from quarries, and detailed studies of joints and other planes of weakness should be included in the exploration and quarrying process.   A few years ago, I had the pleasure of being a keynote speaker at the annual meeting of the […]
March 21, 2012
Roadbuilding
M&A activity may pick up as spring nears
A number of the multi-national companies made acquisition overseas, and the battle continues between Martin Marietta Materials Inc. and Vulcan Materials Co.
March 21, 2012
Business
M&A activity may pick up as spring nears
There were no deals to report in the construction materials sector in January. That said, a number of the multi-national companies made acquisition overseas, and the battle continues between Martin Marietta Materials Inc. and Vulcan Materials Co. Before one thinks that the lack of deals in January is an indication of a slowdown in merger […]
March 21, 2012
Roadbuilding
Counting on a Conference Committee
It is our challenge, as an industry, to hold Republicans’ and Democrats’ feet to the fire and demand the passage of an adequate transportation bill.
March 21, 2012
Construction Equipment
Counting on a Conference Committee
As this issue of Aggregates Manager was going to press, everyone inside the Beltway was talking about the need for transportation reauthorization. The question is whether talk will lead to action. Even Transportation Secretary Ray LaHood is in the dark on that one. In late January, he told Transportation Research Board’s annual meeting attendees that, […]
March 21, 2012
Roadbuilding
Can You Hear Me Now?
Customer feedback programs allow operators to play a larger role in equipment design and evolution.
March 21, 2012
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