Concrete Repair at the Threshold of the 21st Century: Focus on Strengthening of Existing Structures

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Title: Concrete Repair at the Threshold of the 21st Century: Focus on Strengthening of Existing Structures

Author(s): P. H. Emmons and A. M. Vaysburd

Publication: Special Publication

Volume: 185

Issue:

Appears on pages(s): 121-140

Keywords: composite construction; concretes; repairs; strength

Date: 2/1/2000

Abstract:
A large variety of materials and techniques are available to increase strength of existing concrete structures in an effort to extend their service life. The way to make repaired and strengthened concrete structures durable is to ensure that the new composite system is "tailored" to serve the intended service life, and that the composite human system, the team involved with a project, is knowledgeable and experienced enough to recognize the complexity of their task. The paper reviewed traditional methods and also offers a review on the use of advanced composite materials for strenghening existing comcrete structures. The advantages and limitations of different techniques are presented. It is concluded that, in the futrue, advanced composite materials will be widely used for repair and strengthening. To achieve this, it is vital that research and engineering education in cement-based and advanced composite materials are improved.