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During expansion the under-side of the slab is subjected to _________

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in Geotechnical Engineering II by (93.8k points)
During expansion the under-side of the slab is subjected to _________

(a) tensile stress

(b) shearing stress

(c) compressive stress

(d) bulk stress

I have been asked this question at a job interview.

My enquiry is from Design of Rigid Pavements topic in portion Design of Flexible & Rigid Pavement of Geotechnical Engineering II

1 Answer

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by (243k points)
The correct answer is (c) compressive stress

To explain I would say: During expansion the under-side of the slab is subjected to compression. This can be visualised by the hogging action of the beam where the under-side is in compression.

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