NDLI: Crack width for thick offshore plates

Content Provider	Springer Nature Link
Author	Rizk, E. Marzouk, H. Hussein, A.
Copyright Year	2011
Abstract	Using thick concrete covers in offshore and nuclear containment applications is increasing because it is a durability issue. Most crack width models indicate that increasing concrete covers results in increased crack spacing and hence increased crack width this means that thick concrete covers are detrimental to crack control. In this paper, tests were conducted on two groups of thick plates. Group I, included five specimens that had two concrete covers, 60 and 70 mm. Group II, included four thick heavy reinforced specimens; all specimens in this group had a clear concrete cover of 70 mm. Using thick concrete covers is a common practice in offshore and containment structures for nuclear power generation. The objective of testing both groups is to measure flexural crack widths under different load levels and, most importantly, under service loads. Group I was intended primarily to investigate the effect of increasing the cover and bar spacing on the crack width. Group II represents a unique experimental investigation in assessing the magnitude of crack width in full-scale thick plates under service loads. An analytical investigation is presented in this work. The main focus of this study is to evaluate the available codes’ models for estimating the crack width of thick concrete plates having thick concrete covers used for offshore and nuclear containment structure applications. It was concluded that crack control can still be achieved by limiting the spacing of the reinforcing steel despite using thick concrete covers.
Starting Page	1501
Ending Page	1515
Page Count	15
File Format	PDF
ISSN	13595997
Journal	Materials and Structures
Volume Number	44
Issue Number	8
e-ISSN	18716873
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-03-18
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Thick plates Crack spacing Crack width Thick concrete covers Bar spacing Operating Procedures, Materials Treatment Theoretical and Applied Mechanics Civil Engineering Materials Science Building Materials Structural Mechanics
Content Type	Text
Resource Type	Article
Subject	Building and Construction Mechanics of Materials Materials Science Civil and Structural Engineering

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