Article
Secrets to a longer life November 1, 2007 By: Rodney E. Garrett
Highland Sand Co. in Crab Orchard, Tenn., produces manufactured sand at its quarry operation. The site produces only manufactured sand, with screened out fines sold as masonry sand.
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Article
Mobility to the MACS October 1, 2007 By: Rodney E. Garrett
MACS (Mobile Aggregate Crushing System) is a portable crushing/screening system that is turning some heads in the aggregates industry. Designed and built by Terex Cedarapids, in Cedar Rapids, Iowa, the first MACS plant was presented to distributors and Pit & Quarry magazine in April. The first unit...more >>
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Article
Change of face July 1, 2007 By: Rodney E. Garrett
Different types of equipment can be used to remove shotrock at the quarry face. Generally, the digging and loading of the blasted rock is carried out by wheel loaders, front shovels or hydraulic excavators. Wheel loaders are the most popular type in use. Methods typically used to transport the...more >>
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Article
Big bite of the big apple May 1, 2007 By: Rodney E. Garrett
The pictures most people conjure up when New York City (NYC) comes to mind are skyscrapers, the bright lights of Broadway, the Statue of Liberty, Rockefeller Center at Christmastime and Fifth Avenue where only the affluent dare to shop.
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Article
Two is better than one April 1, 2007 By: Rodney E. Garrett
An extensive roads network is important, because most of the visitors travel to Branson either by auto or tourist buses.
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Article
Hard, harder, hardest April 1, 2007 By: Rodney E. Garrett
While this trap rock is difficult to mine, crush and screen, it has attributes that make it a highly desirable rock for producing quality aggregates, construction applications and decorative uses.
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Article
Portable replacement February 1, 2007 By: Rodney E. Garrett
Portable crushing and screening plants are increasingly becoming a viable part of the rock quarry production equation, and with good reason. They carry with them a relatively modest capital investment for the owner, when compared to purchasing a stationary plant with a corresponding production...more >>
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Article
Having a blast - efficiently January 1, 2007 By: Rodney E. Garrett
Once the overburden is removed, the quarrying procedure starts by drilling and blasting in-situ rock. For the quarry manager, the quest is to carry out both activities for the least cost possible, just as he aims to do with the crushing/screening process.
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Article
There's gold in that there rip-rap August 1, 2006 By: Rodney E. Garrett
Gold is unlikely to be found in rip-rap, but for Keller Crushing & Screening Inc. of Tunkhannock, Pa., rip-rap is golden.
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Article
Vertical expansion August 1, 2006 By: Rodney E. Garrett
A large Pennsylvania producer has moved into the topsoil and mulch business, cashing in on the material it processes when removing overburden or preparing a construction site.
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