Aggregates Manager Digital Magazine
Issue link: http://read.dmtmag.com/i/632397
16 AGGREGATES MANAGER / February 2016 PLANT PROFILE Material is sent through the primary jaw crusher and screened. Oversize mate- rial is then sent to a surge pile in the secondary plant for more processing. The undersize material is screened to remove the fines, and the remaining material is separated into assorted sizes and placed in stockpiles for use in asphalt and con- crete production. At the secondary plant, average total daily production ranges from 200 to 250 tons per hour, depending on the size of the products being produced. The ma- terial is fed from the surge pile into the secondary crusher and then sent through a series of screens to remove additional fines and produce the final products. Asphalt products are made from the materials that aren't good enough for landscaping or concrete. Even the red quartzite is used in asphalt, as evidenced by the rich red color found on many of the interstates and highways in the area. "The previous owners mined different deposits all the time," Kuball says. "We try not to do that. We go with demand." Though most of the finished products are shipped by truck, approximately 20 to 25 percent of the finished products are shipped by rail. The rail line runs right into the processing plant so that a 32-car belt train can pull right in to get loaded with material. A train ships out every two or three days. Being a good neighbor "The National Guard station here has been using our material to pave the roads in the base for a long time," Kuball notes. "We did a training exercise with them on a Saturday and Sunday last year. We opened up the scale, and military engineers came in here, got their materials, and built roads on another site near town." The quarry supplies material for many of the projects around town. One of the biggest projects for which it supplied thousands of tons of material was the Guernsey Dam just north of town. The quarry also donated money for the score- board at the baseball field, donated ma- terial for a walking trail, and supplied the funding to build concrete picnic tables that bear the Martin Marietta name at the city park. In addition, large boulders were donated to the city for use as landscap- ing for the gardens in front of the park building. The quarry also donates money to the county fair every year. Guernsey Quarry participates in the Fourth of July parade every year and is a voting member on the Guernsey Econom- ic Development Committee. "We recently voted to, hopefully, rehabilitate an old historic hotel in Guernsey," Kuball adds. The quarry opens its doors to the Fire Department for tours. "We, basically, show them the operation and show them where we can help them," Kuball notes. "The biggest benefit is that, if they are ever called on site, they are familiar with the operation." Although 20 to 25 percent of the aggregate produced at Guernsey Quarry is shipped by rail, the majority is shipped by truck. In the processing plant, oversize material is sent to a surge pile for more processing. Undersize material is screened to remove the fines, and the remaining material is separated into assorted types and sizes and placed in stockpiles.