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Taylor impact of fibre reinforced concrete bars.
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SYSNO ASEP 0536639 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Taylor impact of fibre reinforced concrete bars. Author(s) Buchar, Jaroslav (UT-L)
Trnka, Jan (UT-L) RID
Drdlová, M. (CZ)Number of authors 3 Source Title Journal Of Modern Engineering Research (IJMER). - : International Journal of Modern Engineering Research - ISSN 2249-6645
Roč. 10, č. 10 (2020), s. 30-45Number of pages 16 s. Publication form Online - E Language eng - English Country IN - India Keywords Taylor test ; concrete ; reinforcing fibres ; compressive strength ; strain rate sensitivity ; high speed camera Subject RIV JN - Civil Engineering OECD category Mechanical engineering R&D Projects EF15_003/0000493 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UT-L - RVO:61388998 Annotation The impact resistance of fibre reinforced concrete was investigated using a Taylor impact test.Striking velocities up to 31 m/s were applied. The four types of fibre was used: carbon,polypropylene, aramid and wollastenite. The results showed that the dynamic compressive strength increased with the striking velocity. The highest rate sensitivity was reported for carbon and polypropylene fibres.The addition of aramidfibres did not led to the increase of the compressive strength in comparison with the unreinforced concrete. The dynamic compressive strength lies between static compressive strength and the dynamic strength evaluated using a Split Hopkinson Pressure Bar technique. Qualitative features of the specimen damage were studied using high speed camera. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2021 Electronic address http://www.ijmer.com/pages/Volume10-Issue10.html
Number of the records: 1