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"2 X 4's and Tornadoes..."

3 years 5 months 3 weeks ago April 30, 2013 Apr 30, 2013 Tuesday, April 30 2013 April 30, 2013 2:00 AM in Pat Shingleton Column
By: Pat Shingleton

Discarded liners previously used to encase offshore oil-rig piping were recognized as a model of "green" engineering and are now being recycled for another important use. In tornado prone areas, storm shelters provide valuable protection and the National Storms Shelter Association tests products to improve storm shelters. Recently the Texas Tech Debris Impact Test Facility fired 15-pound two-by-fours from a pressure cannon that did not penetrate the panels. The wooden projectiles hit the discarded liners at 100 mph, replicating objects that exit a funnel cloud. Applying modern materials science to storm shelters started after Hurricane Katrina and was advanced after 62 tornadoes ravaged Alabama. The newly designed panels are made of thermoplastic and fiberglass resins and fibers and are stronger per density unit than steel, currently used in shelters.

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