INFLUENCE OF TYPE AND CONTENT OF FIBERS ON THE PERFORMANCE OF SELF-COMPACTING CONCRETE | ||||
| ERJ. Engineering Research Journal | ||||
| Article 15, Volume 24, Issue 4, October 2001, Page 233-244 PDF (622.28 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2001.71145 | ||||
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| Author | ||||
| M.M. Balaha | ||||
| Lecturer Eng. Materials Dept., Faculty of Eng., Zagazig University, Zagazig, E'gyyt. | ||||
| Abstract | ||||
| Self-compactiag concrete (SCC) is used to facilitate constmctability and ensure proper filling and good structural yerforrmce of highly cot~gested and coniplex design structural sectiot~s. It is also used to itriprove productivity of concrete placet:~ent and provide better workiug erlviro~llnent by elinhating the vibration noise. Tlle use of fibers in SCC provides a way of iacreasit~g productivity as it cott~bines the positive effects of elimillatilig vibration work. Tlle purpose of this study is to investigate the self-cornpactability of fiesli concretes with differeht types of fibers (steel, glass and polypropylene fiber n~esli) and different volumetric ratio of fibers (0.0, 0.5 ad l %). hl this pay er, the self-comp actability of fresh co~lcretes with tliese types and Were~~t a~i~ou~~ts of fibers were investigated by lneatis of the sluuip flow test, tlie V-type fimnel test and L-box method. No compaction was used for the SCC mixes, while the refcrelm mix was conymted using tlle vibratirig table. Also, in this study, tile mechanical y rop ertics of hardened self-con~pactiug concrete (SCC) were investigated iu tems of standard compressive and splitting tensile strength Results from these tests show that there may be a slight reduction in workability due to the addition of fibers. However despite the s~ilall reduction iu workability it is geuerally not more dificdt to produce a good SCC with fibers than without. Tlie results indicate that it is possible to achieve a good SCC also with a rather large amoumt of fibers. | ||||
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