Structural Concrete - Hassoun

References 253
2. Maximum crack width is
√
3
W = 0.076βf s Adc × 10 −6 (in.)
Approximate values for β, f s ,andd c are β = 1.2 for beams and β = 1.35 for slabs, d c = 2.5 in.,
and f s = (2/3) f y .
3. The limiting crack width is 0.016 in. for interior members and 0.013 in. for exterior members.
Section 6.7
The maximum spacing s of bars closest to a concrete surface in tension is limited to
s = 600 − 2.5C
f c
s
but not more than 12(40/f s ). Note that f s may be taken as 2/3 f y .
REFERENCES
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Sciences 1, no. 1 (January 1975). College of Engineering, Riyadh, Saudi Arabia.
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1957).
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14. V. R. Evans. An Introduction to Metallic Corrosion. Edward Arnold, London, 1948.
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