Proposed Specifications for Minimum Bar Spacing and Protective Cover in Precast Concrete Framing Members

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Title: Proposed Specifications for Minimum Bar Spacing and Protective Cover in Precast Concrete Framing Members

Author(s): Arsham Amirikian

Publication: Journal Proceedings

Volume: 46

Issue: 4

Appears on pages(s): 637-640

Keywords: no keywords

Date: 4/1/1950

Abstract:
The use of relatively small size aggregates and favorable conditions for quality control make it possible to place reinforcing bars in precast concrete work at closer spacings than those specified or required in conventionally poured-in-place concrete construction. Better quality control and utilization of rich mixtures make it also possible to obtain corrosion protection of reinforcing with relatively thin covers. Recommendations are given for a new basis of specifying bar spacing and cover, in the form of proposed specifications applicable to precast concrete work, together with a discussion of some of the considerations justifying the suggested specifications.