Pit & Quarry, April 2013
CONVEYING MATERIAL HANDLING Rock Rolls A unique expanded shale and clay operation cuts downtime and operating costs with new long wearing idler rolls S hale is the most abundant sedimentary rock in the world Formed from the compaction of silt and clay size mineral particles shale is often called a mudstone and is described as being laminated or made up of many thin layers The Expanded Shale Clay ES C group at Texas Industries Inc TXI is one of the largest producers of rotary kiln expanded shale and clay lightweight aggregate in North America and is the largest supplier of this material west of the Mississippi River For more than 100 years ES C lightweight aggregates have been used in applications that B Y C AROL WA S SON 10 PIT QUARRY April 2013 www pitandquarry com
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