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Biaxial Testing of Brittle Repair Material for Rigid Pavements

by George Z. Voyiadjis, Louisiana State Univ, Baton Rouge, United States,
Taher M. Abu-Lebdeh, Louisiana State Univ, Baton Rouge, United States,



Document Type: Proceeding Paper

Part of: Structures Congress XII

Abstract:

Most codes of practice prescribe procedures for selecting patch configuration and material based on test devised for evaluating new pavement materials. This study is aimed at examined the special consideration to be given to such evaluation procedures and to suggest improved procedures for brittle repair materials, based on additional tests. Three different repair materials, namely plain concrete, steel fiber concrete, and rapid patch material (Duracal cement) are investigated. Tests are conducted on two different patch configurations (transition and rectangular) and three different patch depths (2, 4 and 6 inches). The experimental procedure to evaluate a brittle repair material considers four tests, namely uniaxial strength test, biaxial strength test, bond strength test and shear test of a repaired pavement joint.

Subject Headings: Material tests | Construction materials | Strength of materials | Rehabilitation | Concrete pavements | Brittleness | Structural strength

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