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Homework Help: physical

Posted by itufizik on Monday, July 23, 2012 at 1:10pm.

A highway of concrete slabs is to be built in the Libyan desert, where the highest air temperature recorded is 57.8 C. The temperature is 23.1 C during construction of the highway. The slabs are measured to be 11.7 m long at this temperature. How wide should the expansion cracks between the slabs be (at 23.1 C) in order to prevent buckling at the highest temperatures?

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