wearing course
2007-05-29 19:13:29 · 3 answers · asked by Philip N 1 in Science & Mathematics ➔ Engineering
the term "wearing course" is common in bridge design where the wearing course is defined as that portion of the concrete deck slab which is deemed to be sacrifical, i.e. it wears away as a result of traffic on the deck.
Typically, 1/2" is set aside for wearing surface. Its dead load is accounted for but it is ignored during the computation of section properties of the composite section.
The unit weight of 1/2" of concrete = 0.5/12*150 pcf = 6.25 psf
2007-05-30 02:41:19 · answer #1 · answered by minorchord2000 6 · 0⤊ 0⤋
W is unit of weight or
R for resistance
2007-05-29 19:34:41 · answer #2 · answered by Anonymous · 0⤊ 0⤋
???
Is there a question hiding in here somewhere?
Doug
2007-05-29 19:16:27 · answer #3 · answered by doug_donaghue 7 · 0⤊ 0⤋