MICROSCOPICAL AND MICROMECHANICAL FEATURES OF HIGH PERFORMANCE CONCRETE CONTAINING LOW LEVELS OF FLY ASH
Alkali activated fly ash is a widely used admixture to the concrete. Due to the pozzolanic activity, the fly ash can replace up to 60 mass percentage. The impact of fly ash on the concrete depend on the level of it content, i.e. in small levels it improves the macro-mechanical properties and durabil...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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CTU Central Library
2019-03-01
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| Series: | Acta Polytechnica CTU Proceedings |
| Subjects: | |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5456 |
| _version_ | 1818864474458685440 |
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| author | Vladimír Hrbek Zdeněk Prošek Roman Chylík Lukáš Vráblík |
| author_facet | Vladimír Hrbek Zdeněk Prošek Roman Chylík Lukáš Vráblík |
| author_sort | Vladimír Hrbek |
| collection | DOAJ |
| description | Alkali activated fly ash is a widely used admixture to the concrete. Due to the pozzolanic activity, the fly ash can replace up to 60 mass percentage. The impact of fly ash on the concrete depend on the level of it content, i.e. in small levels it improves the macro-mechanical properties and durability as well as chemical resistance. On the other side, fly ash admixture negatively influence the set time and cause slow development of strength. Therefore, the effect of small fly ash admixture levels on the micro-structure of high performance concrete (HPC) is discussed in this study. |
| first_indexed | 2024-12-19T10:32:14Z |
| format | Article |
| id | doaj.art-13407943c91f46ddbb54367943c7bd3a |
| institution | Directory Open Access Journal |
| issn | 2336-5382 |
| language | English |
| last_indexed | 2024-12-19T10:32:14Z |
| publishDate | 2019-03-01 |
| publisher | CTU Central Library |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj.art-13407943c91f46ddbb54367943c7bd3a2022-12-21T20:25:43ZengCTU Central LibraryActa Polytechnica CTU Proceedings2336-53822019-03-01210101510.14311/APP.2019.21.00104424MICROSCOPICAL AND MICROMECHANICAL FEATURES OF HIGH PERFORMANCE CONCRETE CONTAINING LOW LEVELS OF FLY ASHVladimír HrbekZdeněk ProšekRoman ChylíkLukáš VráblíkAlkali activated fly ash is a widely used admixture to the concrete. Due to the pozzolanic activity, the fly ash can replace up to 60 mass percentage. The impact of fly ash on the concrete depend on the level of it content, i.e. in small levels it improves the macro-mechanical properties and durability as well as chemical resistance. On the other side, fly ash admixture negatively influence the set time and cause slow development of strength. Therefore, the effect of small fly ash admixture levels on the micro-structure of high performance concrete (HPC) is discussed in this study.https://ojs.cvut.cz/ojs/index.php/APP/article/view/5456high performance concrete, CCP, fly ash, grid indentation, spectral deconvolution SEM, EDX, image analysis, structure, effective modulus |
| spellingShingle | Vladimír Hrbek Zdeněk Prošek Roman Chylík Lukáš Vráblík MICROSCOPICAL AND MICROMECHANICAL FEATURES OF HIGH PERFORMANCE CONCRETE CONTAINING LOW LEVELS OF FLY ASH Acta Polytechnica CTU Proceedings high performance concrete, CCP, fly ash, grid indentation, spectral deconvolution SEM, EDX, image analysis, structure, effective modulus |
| title | MICROSCOPICAL AND MICROMECHANICAL FEATURES OF HIGH PERFORMANCE CONCRETE CONTAINING LOW LEVELS OF FLY ASH |
| title_full | MICROSCOPICAL AND MICROMECHANICAL FEATURES OF HIGH PERFORMANCE CONCRETE CONTAINING LOW LEVELS OF FLY ASH |
| title_fullStr | MICROSCOPICAL AND MICROMECHANICAL FEATURES OF HIGH PERFORMANCE CONCRETE CONTAINING LOW LEVELS OF FLY ASH |
| title_full_unstemmed | MICROSCOPICAL AND MICROMECHANICAL FEATURES OF HIGH PERFORMANCE CONCRETE CONTAINING LOW LEVELS OF FLY ASH |
| title_short | MICROSCOPICAL AND MICROMECHANICAL FEATURES OF HIGH PERFORMANCE CONCRETE CONTAINING LOW LEVELS OF FLY ASH |
| title_sort | microscopical and micromechanical features of high performance concrete containing low levels of fly ash |
| topic | high performance concrete, CCP, fly ash, grid indentation, spectral deconvolution SEM, EDX, image analysis, structure, effective modulus |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5456 |
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