Durability of repaired concrete structures - The bottle for survival

Title: Durability of repaired concrete structures - The bottle for survival
Author(s): A.M. Vaysburd
Paper category : conference
Book title: 2nd International RILEM Symposium on Advances in Concrete through Science and Engineering
Editor(s): J. Marchand, B. Bissonnette, R. Gagné, M. Jolin and F. Paradis
Print-ISBN: 2-35158-003-6
e-ISBN: 2351580028
Publisher: RILEM Publications SARL
Publication year: 2006
Pages: 207 - 224
Total Pages: 18
Nb references: 5
Language: English

Abstract: Improved performance of concrete structures will depend on the willingness and ability of all partners in the repair field to cooperate in creating scientifically based technology.
Sixty-six years ago a strong plea was published in the ACI Journal to “shorten the lag between research and practice”, on the basis that the time lag was too great between the findings of research and their acceptance and application by engineering practitioners. The engineer is really the person expected to bridge the gap and “shorten” the “lag”. But the engineer in the concrete repair field, unfortunately, does not have anything to bridge and shorten. Research is not occupying its time-honored place well ahead of practice, and in some areas it is lagging behind.
So, what are the problems? What has to be resolved?
The paper addresses the issues of durability and service life of repaired concrete structures, shortcomings in scientific input in areas of electrochemical activities, service life prediction, and dimensional compatibility of repair materials with existing concrete substrates.
The paper is not providing recipes for concrete repairs with an appropriate “long-term” service life. Rather, it will explain why several issues considered herein are critically important for further improvements in the concrete repair field.

Keywords: compatibility, corrosion, durability, electrochemistry, mathematical model, service life.

Online publication: 2006-08-02
Classification: 2.3 Theme 3: Monitoring, Repair and Maintenance of Concrete Structures
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2351580028.014