Finite element analysis of patch repair in a concrete flat slab

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ConferenceAPWA International Public Works Congress: 15 September 1997, Minneapolis, MN., U.S.A.
Pages109117; # of pages: 9
AbstractMany of today's ageing reinforced concrete structures have reached or exceeded their expected service life and a significant number of newer structures exposed to severe environmental conditions are showing premature deterioration within 20 years of construction (Mehta, 1991). Concrete structures deteriorate due to a number of processes such as electrochemical processes (i.e. corrosion of the steel - Photo 1), physical process (such as freeze thaw - Photo 2), chemical processes (such as chemical attack, sulphate attack, alkali-aggregate reaction, - Photo 3) and mechanical damage. These processes lead to a physical manifestation of either shrinkage or expansion of the concrete which then result in the cracking and spalling of the concrete. To date, the strategy has been repair and rehabilitation rather than replacement. However, repair not only has a more recent history, it does not have established codes which a proper design can be done.
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AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number41343
NPARC number20337976
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Record identifier67836509-99d5-4b5f-9128-40da5258406f
Record created2012-07-19
Record modified2016-05-09
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