Details
| Original language | English |
|---|---|
| Title of host publication | Fib Symposium 2016 |
| Subtitle of host publication | Performance-Based Approaches for Concrete Structures, Proceedings |
| Editors | Hans Beushausen |
| Pages | 1-10 |
| Number of pages | 10 |
| Publication status | Published - 2016 |
| Event | International fib Symposium on Performance-Based Approaches for Concrete Structures, 2016 - Cape Town, South Africa Duration: 21 Nov 2016 → 23 Nov 2016 |
Publication series
| Name | fib Symposium |
|---|---|
| ISSN (Print) | 2617-4820 |
Abstract
Compared to other deterioration mechanism, such as chloride ingress and carbonation, the development of performance-based design approaches for acid attack on concrete has not progressed so far. Among others, this can be reasoned with the missing of a widely accepted test method for the evaluation of acid resistance. Therefore, currently existing test methods are considered and necessary testing principles for achieving reliable, reproducible and accurate test results are highlighted. On that basis, an approach for the generalisation of test methods is presented, the first step towards a performance-based design approach. Another essential step is the specification of an appropriate performance limit which has to be met. Considering acid attack on concrete structures, it must be kept in mind that degradation proceeds immediately without an initiation period. Thus, reduced structural dimensions have to be assumed at the end of service life. Consequently, the consideration of material resistance alone is not sufficient and the specification of a performance limit has to be in conjunction with required structural dimensions. Based on these fundamentals, conceptual considerations for a performance-based design approach are presented.
Keywords
- Acid attack, Acid resistance, Degradation modelling, Durability design, Performance testing
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
- Materials Science(all)
- Materials Science (miscellaneous)
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Fib Symposium 2016: Performance-Based Approaches for Concrete Structures, Proceedings. ed. / Hans Beushausen. 2016. p. 1-10 (fib Symposium).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Steps towards a performance-based design of concrete structures in acidic environments
AU - Gerlach, Jesko
AU - Lohaus, Ludger
PY - 2016
Y1 - 2016
N2 - Compared to other deterioration mechanism, such as chloride ingress and carbonation, the development of performance-based design approaches for acid attack on concrete has not progressed so far. Among others, this can be reasoned with the missing of a widely accepted test method for the evaluation of acid resistance. Therefore, currently existing test methods are considered and necessary testing principles for achieving reliable, reproducible and accurate test results are highlighted. On that basis, an approach for the generalisation of test methods is presented, the first step towards a performance-based design approach. Another essential step is the specification of an appropriate performance limit which has to be met. Considering acid attack on concrete structures, it must be kept in mind that degradation proceeds immediately without an initiation period. Thus, reduced structural dimensions have to be assumed at the end of service life. Consequently, the consideration of material resistance alone is not sufficient and the specification of a performance limit has to be in conjunction with required structural dimensions. Based on these fundamentals, conceptual considerations for a performance-based design approach are presented.
AB - Compared to other deterioration mechanism, such as chloride ingress and carbonation, the development of performance-based design approaches for acid attack on concrete has not progressed so far. Among others, this can be reasoned with the missing of a widely accepted test method for the evaluation of acid resistance. Therefore, currently existing test methods are considered and necessary testing principles for achieving reliable, reproducible and accurate test results are highlighted. On that basis, an approach for the generalisation of test methods is presented, the first step towards a performance-based design approach. Another essential step is the specification of an appropriate performance limit which has to be met. Considering acid attack on concrete structures, it must be kept in mind that degradation proceeds immediately without an initiation period. Thus, reduced structural dimensions have to be assumed at the end of service life. Consequently, the consideration of material resistance alone is not sufficient and the specification of a performance limit has to be in conjunction with required structural dimensions. Based on these fundamentals, conceptual considerations for a performance-based design approach are presented.
KW - Acid attack
KW - Acid resistance
KW - Degradation modelling
KW - Durability design
KW - Performance testing
UR - http://www.scopus.com/inward/record.url?scp=85134814320&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85134814320
SN - 9782883941229
T3 - fib Symposium
SP - 1
EP - 10
BT - Fib Symposium 2016
A2 - Beushausen, Hans
T2 - International fib Symposium on Performance-Based Approaches for Concrete Structures, 2016
Y2 - 21 November 2016 through 23 November 2016
ER -