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expansion coeff for concrete

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robyengIT

robyengIT

Mechanical
Dec 20, 2013
894
concrete has a coeff of expansion because of temperature. Said coeff is constant or variable according to increasing temperature ? is there any reference ? Thks
 
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There are plenty of references. Start with any of Neville's books. Also, AASHTO and numerous state departments of transportation have values and test procedures they use. ACI and the Portland Cement Association have references for this.

The value is generally taken as 6-8 x 10^-6 inches per inch per degree F.

 
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The value is generally taken as 6-8 x 10^-6 inches per inch per degree F.
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AASHTO used to use a value of 5.5 x 10^-6, but recent versions use values of 6.0 for normal weight concrete and 5.0 for lightweight concrete.

Rod Smith, P.E., The artist formerly known as HotRod10
 
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