Development of guidelines for durability design of reinforced concrete structures

Title: Development of guidelines for durability design of reinforced concrete structures
Author(s): Joost Gulikers
Paper category : conference
Book title: 2nd International Symposium on Service Life Design for Infrastructures
Editor(s): K. van Breugel, Guang Ye, Yong Yuan
Print-ISBN: 978-2-35158-096-7
e-ISBN: 978-2-35158-097-4
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 359 - 368
Total Pages: 10
Nb references: 6
Language: English

Abstract: Design for durability of infrastructure facilities is becoming increasingly important in view of the large economical impact of premature maintenance and repair. The deem-to-satisfy approach presented in the current standards and codes is considered too restrictive to allow a wide range of design service lives to be used and does not make any or only limited distinction between type of cement and concrete qualities. Consequently, transparent guidelines are urgently required to support durability design using performance criteria.
With respect to reinforcement corrosion induced by the ingress of chlorides a simple mathematical expression has been developed based on a full probabilistic approach by identifying the major influencing model parameters. This formula employs a deterministic approach using mean values for the parameters but by introducing a scaling factor that is dependent on the type of cement and the prevailing exposure conditions, the translation to the desired probability of corrosion initiation is made. Dependent on the economical importance and the possibilities of maintenance of a structure 3 levels of probability have been distinguished. For practical applications, a number of tables have been introduced as to give guidance for concrete producers and consultants.

Online publication: 2011-04-20
Publication type : full_text
Public price (Euros): 0.00