Behavior of an Expansive-Portland Mortar Composite

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Title: Behavior of an Expansive-Portland Mortar Composite

Author(s): Mohsen Mahmoudzadeh Rahimi and Clyde E. Kesler

Publication: Journal Proceedings

Volume: 75

Issue: 6

Appears on pages(s): 239-243

Keywords: beams (supports); composite construction (concrete to concrete);composite materials; expansive cements;flexural tests; mortars (material);portland cement Type 1;self-stressing cements;stresses;tensile stress.

Date: 6/1/1978

Abstract:
Expansive cement motar can be used in construction with Type 1 cement motar to develop a composite beam, which after curing will have residual compressive stresses on the tensile surface which can result in significantly increased flexural strength. The magnitude of the increased flexural strength, for a particular beam geometry and a particular expansive cement, depends on the relative thickness of the layers of the two mortars.