Long-term efficiency of silica fume and fly ash to suppress ASR in field structures
The potential of ASR in concrete can be assessed by the concrete prism test. However, the transferability of the results obtained with accelerated tests to concrete behavior under field conditions has to be validated. Such a validation was performed ten years ago for concrete produced with Portland...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Consejo Superior de Investigaciones Científicas
2022-04-01
|
| Series: | Materiales de Construccion |
| Subjects: | |
| Online Access: | https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2923 |
| _version_ | 1818244122456096768 |
|---|---|
| author | A. Leemann C. Merz |
| author_facet | A. Leemann C. Merz |
| author_sort | A. Leemann |
| collection | DOAJ |
| description |
The potential of ASR in concrete can be assessed by the concrete prism test. However, the transferability of the results obtained with accelerated tests to concrete behavior under field conditions has to be validated. Such a validation was performed ten years ago for concrete produced with Portland cement and various Swiss aggregates. In recent years, the use of supplementary cementitious materials (SCM) has increased. So far, no validation for such types of concrete has been conducted in Switzerland. The goal of the current project is to fill this gap and provide the missing validation. Eight structures where chosen for the investigation. In all of them concrete containing SCM was used and the results of the concrete prism test at time of construction were available. In general, the results of the concrete prism test correlate with the degree of damage in the structures assessed by the analysis of the microstructure.
|
| first_indexed | 2024-12-12T14:12:00Z |
| format | Article |
| id | doaj.art-7baade999ba24205b3d86886d4f94341 |
| institution | Directory Open Access Journal |
| issn | 0465-2746 1988-3226 |
| language | English |
| last_indexed | 2024-12-12T14:12:00Z |
| publishDate | 2022-04-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Materiales de Construccion |
| spelling | doaj.art-7baade999ba24205b3d86886d4f943412022-12-22T00:22:04ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262022-04-017234610.3989/mc.2022.15821Long-term efficiency of silica fume and fly ash to suppress ASR in field structuresA. Leemann0C. Merz1Empa, Swiss Federal Laboratories for Materials Science and Technology, Concrete and Asphalt LaboratoryMerz Ingenieurberatung The potential of ASR in concrete can be assessed by the concrete prism test. However, the transferability of the results obtained with accelerated tests to concrete behavior under field conditions has to be validated. Such a validation was performed ten years ago for concrete produced with Portland cement and various Swiss aggregates. In recent years, the use of supplementary cementitious materials (SCM) has increased. So far, no validation for such types of concrete has been conducted in Switzerland. The goal of the current project is to fill this gap and provide the missing validation. Eight structures where chosen for the investigation. In all of them concrete containing SCM was used and the results of the concrete prism test at time of construction were available. In general, the results of the concrete prism test correlate with the degree of damage in the structures assessed by the analysis of the microstructure. https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2923Alkali-aggregate reactionConcrete prism testField exposureValidationMicrostructure |
| spellingShingle | A. Leemann C. Merz Long-term efficiency of silica fume and fly ash to suppress ASR in field structures Materiales de Construccion Alkali-aggregate reaction Concrete prism test Field exposure Validation Microstructure |
| title | Long-term efficiency of silica fume and fly ash to suppress ASR in field structures |
| title_full | Long-term efficiency of silica fume and fly ash to suppress ASR in field structures |
| title_fullStr | Long-term efficiency of silica fume and fly ash to suppress ASR in field structures |
| title_full_unstemmed | Long-term efficiency of silica fume and fly ash to suppress ASR in field structures |
| title_short | Long-term efficiency of silica fume and fly ash to suppress ASR in field structures |
| title_sort | long term efficiency of silica fume and fly ash to suppress asr in field structures |
| topic | Alkali-aggregate reaction Concrete prism test Field exposure Validation Microstructure |
| url | https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2923 |
| work_keys_str_mv | AT aleemann longtermefficiencyofsilicafumeandflyashtosuppressasrinfieldstructures AT cmerz longtermefficiencyofsilicafumeandflyashtosuppressasrinfieldstructures |