PERFORMANCE OF CEMENT COMPOSITES REINFORCED WITH SURFACE-MODIFIED POLYPROPYLENE MICRO- AND MACRO-FIBERS
This paper focuses on the mechanical properties investigation of cement pastes reinforced with surface treated polymer fibers. The cement matrix was composed of Portland cement (CEM I 42.5 R, w/c ratio equal to 0.4). Two polypropylene fiber types (micro- and macro-fibers) were used as randomly distr...
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| Format: | Article |
| Language: | English |
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Czech Technical University in Prague
2017-11-01
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| Series: | Acta Polytechnica CTU Proceedings |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/4650 |
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| author | Jakub Antoš Lukáš Dejdar Jan Trejbal Zdeněk Prošek |
| author_facet | Jakub Antoš Lukáš Dejdar Jan Trejbal Zdeněk Prošek |
| author_sort | Jakub Antoš |
| collection | DOAJ |
| description | This paper focuses on the mechanical properties investigation of cement pastes reinforced with surface treated polymer fibers. The cement matrix was composed of Portland cement (CEM I 42.5 R, w/c ratio equal to 0.4). Two polypropylene fiber types (micro- and macro-fibers) were used as randomly distributed and oriented reinforcement in volume amount of 2 %. The fibers were modified in the low-pressure inductively coupled cold oxygen plasma in order to enhance their surface interaction with the cement matrix. The investigated composite mechanical properties (load bearing capacity and response during loading) were examined indirectly by means of four-point bending mechanical destructive tests. A response of loaded samples containing treated fibers were compared to samples with reference fibers. Moreover, cracking behavior development was monitored using digital image correlation (DIC). This method enabled to record the micro-cracks system evaluation of both fiber reinforced samples. |
| format | Article |
| id | doaj-art-d35f642247cd404e94f0b8bc0938a1ea |
| institution | DOAJ |
| issn | 2336-5382 |
| language | English |
| publishDate | 2017-11-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-d35f642247cd404e94f0b8bc0938a1ea2025-08-20T03:18:09ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822017-11-01130111510.14311/APP.2017.13.00114016PERFORMANCE OF CEMENT COMPOSITES REINFORCED WITH SURFACE-MODIFIED POLYPROPYLENE MICRO- AND MACRO-FIBERSJakub Antoš0Lukáš Dejdar1Jan Trejbal2Zdeněk Prošek3Czech Technical University in Prague, Faculty of Civil Engineering, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Thákurova 7, 166 29 Prague 6, Czech Republic Czech Academy of Science, Institute of Physics, Na Slovance 1999/2, 182 21 Prague 8, Czech RepublicThis paper focuses on the mechanical properties investigation of cement pastes reinforced with surface treated polymer fibers. The cement matrix was composed of Portland cement (CEM I 42.5 R, w/c ratio equal to 0.4). Two polypropylene fiber types (micro- and macro-fibers) were used as randomly distributed and oriented reinforcement in volume amount of 2 %. The fibers were modified in the low-pressure inductively coupled cold oxygen plasma in order to enhance their surface interaction with the cement matrix. The investigated composite mechanical properties (load bearing capacity and response during loading) were examined indirectly by means of four-point bending mechanical destructive tests. A response of loaded samples containing treated fibers were compared to samples with reference fibers. Moreover, cracking behavior development was monitored using digital image correlation (DIC). This method enabled to record the micro-cracks system evaluation of both fiber reinforced samples.https://ojs.cvut.cz/ojs/index.php/APP/article/view/4650cement composite, fiber reinforcement, polymeric fiber, surface modification, plasma |
| spellingShingle | Jakub Antoš Lukáš Dejdar Jan Trejbal Zdeněk Prošek PERFORMANCE OF CEMENT COMPOSITES REINFORCED WITH SURFACE-MODIFIED POLYPROPYLENE MICRO- AND MACRO-FIBERS Acta Polytechnica CTU Proceedings cement composite, fiber reinforcement, polymeric fiber, surface modification, plasma |
| title | PERFORMANCE OF CEMENT COMPOSITES REINFORCED WITH SURFACE-MODIFIED POLYPROPYLENE MICRO- AND MACRO-FIBERS |
| title_full | PERFORMANCE OF CEMENT COMPOSITES REINFORCED WITH SURFACE-MODIFIED POLYPROPYLENE MICRO- AND MACRO-FIBERS |
| title_fullStr | PERFORMANCE OF CEMENT COMPOSITES REINFORCED WITH SURFACE-MODIFIED POLYPROPYLENE MICRO- AND MACRO-FIBERS |
| title_full_unstemmed | PERFORMANCE OF CEMENT COMPOSITES REINFORCED WITH SURFACE-MODIFIED POLYPROPYLENE MICRO- AND MACRO-FIBERS |
| title_short | PERFORMANCE OF CEMENT COMPOSITES REINFORCED WITH SURFACE-MODIFIED POLYPROPYLENE MICRO- AND MACRO-FIBERS |
| title_sort | performance of cement composites reinforced with surface modified polypropylene micro and macro fibers |
| topic | cement composite, fiber reinforcement, polymeric fiber, surface modification, plasma |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/4650 |
| work_keys_str_mv | AT jakubantos performanceofcementcompositesreinforcedwithsurfacemodifiedpolypropylenemicroandmacrofibers AT lukasdejdar performanceofcementcompositesreinforcedwithsurfacemodifiedpolypropylenemicroandmacrofibers AT jantrejbal performanceofcementcompositesreinforcedwithsurfacemodifiedpolypropylenemicroandmacrofibers AT zdenekprosek performanceofcementcompositesreinforcedwithsurfacemodifiedpolypropylenemicroandmacrofibers |