Creep of Concrete for Reactor/Containment Buildings


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Title: Creep of Concrete for Reactor/Containment Buildings

Author(s): Marwan A. Daye

Publication: Special Publication

Volume: 76


Appears on pages(s): 149-168

Keywords: aggregates; creep properties; creep tests; loads '(forces); mix proportioning; nuclear reactor containment; prestressed concrete.

Date: 10/1/1982

Creep of concrete is an important characteristic to the 1' design engineer particularly when dealing with prestressed concrete, more so in the design of prestressed reactor/containment buildings. Since actual testing is a long term process, an empirical formula for prediction of creep of concrete is developed. The effect of the physical properties of the aggregate and the mix proportions as well as the age at loading and the concrete temperature are considered. Creep test results for cylinders made from both normal and light weight concrete are compared with creep values predicted using the developed formula. The comparison indicated good correlation between both values. The prediction formula is computerized such that the creep values for a concrete mix could be evaluated immediately with the input of the mix properties on three computer data cards.