An attempt to validate the ultra-accelerated microbar and the concrete performance test with the degree of AAR-induced damage observed in concrete structures
There is little knowledge about the relation between AAR-induced damage observed in structures and the expansion potential obtained with accelerated tests. In this study, aggregates used in structures damaged by AAR were tested with the microbar test (MBT/AFNOR XP 18-594) and the concrete performanc...
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| Veröffentlicht in: | Cement and concrete research 2013-07, Vol.49, p.29-37 |
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| creator | Leemann, Andreas Merz, Christine |
| description | There is little knowledge about the relation between AAR-induced damage observed in structures and the expansion potential obtained with accelerated tests. In this study, aggregates used in structures damaged by AAR were tested with the microbar test (MBT/AFNOR XP 18-594) and the concrete performance test (CPT/AFNOR P18-454). After the tests, the samples were examined using optical and scanning electron microscopy. Based on the results, the significance of the microbar test has to be examined very critically. The agreement of measured expansion, reacted rock types and the composition of the reaction products between the on-site concrete and the reproduced concrete subjected to the CPT clearly indicates that the reaction mechanisms in the structure and in the concrete performance test are comparable. As such, the concrete performance test seems to be an appropriate tool to test the potential reactivity of specific concrete mixtures. |
| doi_str_mv | 10.1016/j.cemconres.2013.03.014 |
| format | Article |
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As such, the concrete performance test seems to be an appropriate tool to test the potential reactivity of specific concrete mixtures.</description><subject>Accelerated tests</subject><subject>Acceleration (A)</subject><subject>Alkali-aggregate reaction (C)</subject><subject>Applied sciences</subject><subject>Building failures (cracks, physical changes, etc.)</subject><subject>Building structure</subject><subject>Buildings. Public works</subject><subject>Cements</subject><subject>Concrete (E)</subject><subject>Concrete structure</subject><subject>Concrete structures</subject><subject>CONCRETES</subject><subject>Construction (buildings and works)</subject><subject>Corrosion</subject><subject>DAMAGE</subject><subject>Durability. Pathology. Repairing. 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Public works</topic><topic>Cements</topic><topic>Concrete (E)</topic><topic>Concrete structure</topic><topic>Concrete structures</topic><topic>CONCRETES</topic><topic>Construction (buildings and works)</topic><topic>Corrosion</topic><topic>DAMAGE</topic><topic>Durability. Pathology. Repairing. Maintenance</topic><topic>Exact sciences and technology</topic><topic>EXPANSION</topic><topic>MATERIALS SCIENCE</topic><topic>Microorganisms</topic><topic>MIXTURES</topic><topic>Performance tests</topic><topic>REACTION KINETICS</topic><topic>SCANNING ELECTRON MICROSCOPY</topic><topic>SEM (B)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Leemann, Andreas</creatorcontrib><creatorcontrib>Merz, Christine</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>OSTI.GOV</collection><jtitle>Cement and concrete research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Leemann, Andreas</au><au>Merz, Christine</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An attempt to validate the ultra-accelerated microbar and the concrete performance test with the degree of AAR-induced damage observed in concrete structures</atitle><jtitle>Cement and concrete research</jtitle><date>2013-07-01</date><risdate>2013</risdate><volume>49</volume><spage>29</spage><epage>37</epage><pages>29-37</pages><issn>0008-8846</issn><eissn>1873-3948</eissn><coden>CCNRAI</coden><abstract>There is little knowledge about the relation between AAR-induced damage observed in structures and the expansion potential obtained with accelerated tests. 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| ispartof | Cement and concrete research, 2013-07, Vol.49, p.29-37 |
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| subjects | Accelerated tests Acceleration (A) Alkali-aggregate reaction (C) Applied sciences Building failures (cracks, physical changes, etc.) Building structure Buildings. Public works Cements Concrete (E) Concrete structure Concrete structures CONCRETES Construction (buildings and works) Corrosion DAMAGE Durability. Pathology. Repairing. Maintenance Exact sciences and technology EXPANSION MATERIALS SCIENCE Microorganisms MIXTURES Performance tests REACTION KINETICS SCANNING ELECTRON MICROSCOPY SEM (B) |
| title | An attempt to validate the ultra-accelerated microbar and the concrete performance test with the degree of AAR-induced damage observed in concrete structures |
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