Proportioning Normal Weight and Lightweight Structural Concrete Mixtures Using Shrinkage Compensating Expansive Cements

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Title: Proportioning Normal Weight and Lightweight Structural Concrete Mixtures Using Shrinkage Compensating Expansive Cements

Author(s): Cedric Wilson

Publication: Special Publication

Volume: 46

Issue:

Appears on pages(s): 1-10

Keywords: admixtures; cement content; compressive strength; concretes; curing; expansive cement, type K; expansive cement, type M; expansive cement, type S; expansive cement; hydration; mix proportioning; portland cement, type I; shrinkage comprensating cements

Date: 1/1/1974

Abstract:
Presents basic principles of proportioning shrinkage compensating concrete mixtures using currently available expansive cements and relates them to proportioning mixtures using Type I cement. Properties which are common to all expansive cements and their differences are discussed. Conditions under which slump loss may occur when using some expansive cements are reviewed and methods for adjusting mixing water to compensate are given. Recommendations for the use of admixtures are made and importance of proper curing and adeqate internal restraint are discussed briefly.