Study of Mechanical and Fracture Properties of Concrete with Different Lengths of Polypropylene Fibers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F25%3A10258498" target="_blank" >RIV/61989100:27120/25:10258498 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2075-5309/15/17/3041" target="_blank" >https://www.mdpi.com/2075-5309/15/17/3041</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/buildings15173041" target="_blank" >10.3390/buildings15173041</a>
Alternative languages
Result language
angličtina
Original language name
Study of Mechanical and Fracture Properties of Concrete with Different Lengths of Polypropylene Fibers
Original language description
This study investigates the effect of polypropylene fibers of different lengths (54 mm, 38 mm, 19 mm) on the mechanical and fracture properties of high-strength concrete. Unlike most existing research focusing on a single fiber length, this work evaluates a fixed hybrid ratio of 4:1:1, thereby addressing the synergistic action of macro- and microfibers. Three dosages were tested and compared to a reference mixture without fibers. Validation was performed by repeated testing of multiple specimens and statistical evaluation of mean values and standard deviations. The results showed that the optimal hybrid mixture (2.0/0.5/0.5 kg/m3) increased compressive strength by 28.7% and splitting tensile strength by 30.1% relative to the reference. Fracture toughness and specific fracture energy also improved significantly, demonstrating enhanced crack resistance and energy absorption. The main contribution of this work is to provide experimental evidence that a hybrid combination of polypropylene fibers at a fixed ratio can improve both mechanical strength and fracture resistance, with direct implications for durability and service life.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20102 - Construction engineering, Municipal and structural engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Buildings
ISSN
2075-5309
e-ISSN
2075-5309
Volume of the periodical
15
Issue of the periodical within the volume
17
Country of publishing house
CH - SWITZERLAND
Number of pages
12
Pages from-to
3041
UT code for WoS article
001569900900001
EID of the result in the Scopus database
2-s2.0-105015487574