Pit & Quarry articles from March 1998

Pit & Quarry archives from March 1998

The consequences of a small leak. (hazards of electrical leak)
March 1, 1998... A one-gallon leak from a water tank holding a thousand gallons ordinarily would not be serious. But, depending on the chemical, one drop can be serious. Scientific American, in September 1997, reported that a senior scientist at Dartmouth College...

MSHA's S&S threat. (Mine Safety and Health Administration's explanation of the significant and substantial phrase)
March 1, 1998... Recently, the Mine Safety and Health Administration (MSHA) issued a program information bulletin announcing that MSHA is asserting a new meaning of the phrase "significant and substantial" as it appears in the Federal Mine Safety and Health Act...

Super crushing. (Superpave specifications)(includes related article on the Superpave operations of Richard Cook and his companies, Associated Asphalt and Material Co. and Industrial Asphalt)
March 1, 1998... Producers look for equipment answers on the road to meeting Superpave requirements. Selecting the right equipment for the job is one of the top concerns as aggregate producers face the onslaught of Superpave specifications. Certainly, many...

Loaders on the line: for Caterpillar, 1998 is set to be the next year of the new G-Series loaders. (Caterpillar loaders)(includes related article on the design of the Caterpillar 962G loader)
March 1, 1998... The G Series is growing by the day. With the introduction of four new mid-range models, the Caterpillar G Series of loaders will number nine machines (four of which are available in integrated toolcarrier configurations.) Driven by changing...

Drilling away from disaster. (safety in quarry drilling)(Cover Story)
March 1, 1998... Technological innovations and old rules of thumb keep drilling and blasting safe. High-tech innovations continue to bring more thrill from the drill and more bang for the buck - but quarry managers must still continue to monitor all aspects of...

Loader maintenance. (part 1)
March 1, 1998... This is the first in a two-part series concerning off-season loader maintenance. - ed. In many parts of the country, winter signals a slowdown in aggregates-production activity. It's a slack season when many equipment owners and operators...

Southeast report. (status of the regional quarry industries in the United States)
March 1, 1998... Buoyed by a strong economy, population gains, bond issues and government infrastructure spending, stone producers in the Southeast region of the United States look to improve on a solid performance in 1997. Not all is peaches and cream,...

Mixing politics and community. (political and community aspects of the sand and gravel industry)
March 1, 1998... For Jim Allard, there's more to running a sand and gravel operation than simply running a business. His job means participating in the government, locally, provincially and nationally; and being a responsible member of the community as well....

Controlling silica exposure.
March 1, 1998... To protect workers and control workers compensation costs, a variety of risk-control measures should be implemented to reduce the risks of airborne silica to workers. Proactive risk management techniques include both engineering and...