Plant manager Randy Jones surveys the plant. LEHIGH HANSON USES DEWATERING TECHNOLOGY TO REDUCE ENERGY CONSUMPTION AT AN INDIANA QUARRY. By Mark S. Kuhar Imagine 40 percent of your quarry’s total electricity consumption going to keep the pit dry because of the need to pump out ground water. This was the situation at Lehigh Hanson’s Harding Street quarry in 2012.…
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Material Analysis: Unveiling the Secrets of Limestone
RAMAN SPECTROSCOPY IS A POWERFUL TECHNIQUE THAT CAN BE USED TO ANALYZE ROCK AND MINERAL SAMPLES FOR CORRECT EQUIPMENT CHOICE AND QUALITY CONTROL. By Dr. Antony Burnham and Dr. David James Figure 1 Figure 2a Raman spectros copy provides a technique for rapid identification of carbonate minerals and provides additional relevant information that facilitates interpretation of these rocks. Raman…
Read MoreGiants of Generation
WENDLING QUARRIES OPTS FOR PORTABLE POWER TO KEEP CRUSHERS AND OTHER EQUIPMENT HUMMING. By Mark S. Kuhar The first production model of a 600-kW standby/550-kW prime-rated generator set powered by the new MTU Series 1600 diesel engine is undergoing rigorous field-testing at a mobile aggregate plant operated by Wendling Quarries. As an operator of about 100 quarries in eastern Iowa…
Read MoreConExpo-Con/Agg Revisited
MAJOR ANNOUNCEMENTS, POWERFUL PRODUCTS AND MORE FROM A RECORD-BREAKING SHOW. ConExpo-Con/Agg and IFPE 2014 took center stage in Las Vegas March 4-8 with tremendous energy and serious buyers. Total registration of 129,364 soared past the last edition of the shows as they achieved the second-highest attendance in their history. The shows also set new records for exhibit space, number of…
Read MoreThe Deal Goes Down
THE MERGER OF MARTIN MARIETTA MATERIALS AND TEXAS INDUSTRIES CREATES A CONSTRUCTION-MATERIALS JUGGERNAUT. By Mark S. Kuhar The biggest merger news in years hit the aggregates industry in January. Martin Marietta Materials Inc. and Texas Industries Inc. (TXI) announced that the boards of directors of both companies had unanimously approved a definitive merger agreement under which Martin Marietta will…
Read MorePutting on the Brakes to Move Forward
Nugent Sand’s Barge-Spotting Operation Uses Oil Shear Brakes to Slash Winch Downtime and Operating Costs. By Mark S. Kuhar In Fairfield, Ohio, the scene is serene and picturesque. Sunshine reflects off the light chop of the Ohio River, as a barge winds its way into the view afforded through the trees bursting with autumn colors. While those driving along Louisville’s…
Read MoreAEM launches CONEXPO Latin America for 2015 in Chile
Dennis Slater, president of the Association of Equipment Manufacturers (AEM), and Daniel Hurtado, president of the Chilean Chamber of Construction (CChC), sign the co-location agreement between CONEXPO Latin America and Edifica and EXPO HORMIGÓN during Edifica 2013. The Association of Equipment Manufacturers (AEM), owner of ConExpo-Con/Agg, will launch CONEXPO Latin America, to be held October 2015 in Santiago, Chile. AEM…
Read MoreWorld Aggregates Market
A New Study Predicts The North American Aggregates Market Will Be A Global Area Of Growth Through 2017. By Mark S. Kuhar
Read MoreBenchmark 2014: An Exclusive Survey
On Producer Opinions, Concerns and Buying Intentions. By Mark S. Kuhar
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