Aggregates Manager

March 2014

Aggregates Manager Digital Magazine

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AGGREGATES MANAGER March 2014 30 A new portable impact crusher allows an Arizona operator to streamline crushing operations; all while boosting production and lowering fuel costs. Concrete solution A new mobile impact crusher with self-contained screen is enabling an Arizona operator to leverage his demolition concrete and reclaimed asphalt pave- ment into a saleable product. In addition to crush- ing his own demolition concrete, he's able to gener- ate tipping fees from other contractors as they bring recycle material to his Phoenix-area plant. And he's doing it all with a single, new Kleemann Mobirex MR 130 ZS mobile impact crusher with secondary screen, which became operational in summer 2013. "Recycling is something we've worked with for decades," says Jerry Buesing, president and CEO, Buesing Corp. "We respected and bought products such as recycled concrete aggregate [RCA] and reclaimed asphalt pavement [RAP] principally because of the cost, but also the difference in the weight of the materials compared to virgin aggre- gate — and the ability to lay down and pave on it — is much better than a lot of natural aggregates." That, he says, is because the percent of fractured faces of crushed, recycled products is higher than for many virgin aggregates, depending on the avail- ability. "Many local governments and agencies specify a certain percentage of fracture," Buesing adds. "Most of the aggregate sources here can meet that fracture spec, but not all, and barely meeting the fracture spec results in an unstable base material; you will have to keep it very wet to get on and pave it, but when you put down crushed concrete and grade it, it's there to stay." The 243 Complex consists of 243 Lime, a pulverized (or fine grind) limestone operation; 243 Quarry, a crushed limestone operation that, among its traditional rock markets, supplies high-calcium limestone to its sister operation, 243 Lime; and hundreds of acres of additional reserves that will ensure that the facility is producing high quality limestone for decades into the future. Sudden Impact by Tom Kuennen Buesing Corp. recycles both recycled concrete aggregate and reclaimed asphalt pavement at its Phoenix-area operation.

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