Study of Mechanical and Fracture Properties of Concrete with Different Lengths of Polypropylene Fibers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F26%3A0199530" target="_blank" >RIV/00216305:26110/26:0199530 - 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>

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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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Buildings

ISSN

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e-ISSN

2075-5309

Volume of the periodical

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Issue of the periodical within the volume

15(17), 3041

Country of publishing house

CH - SWITZERLAND

Number of pages

12

Pages from-to

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UT code for WoS article

001569900900001

EID of the result in the Scopus database

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