Study of the behaviour of recycled and traditional fibres in cement composite at extreme temperatures

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F24%3APU150184" target="_blank" >RIV/00216305:26110/24:PU150184 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2352710224017029" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352710224017029</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jobe.2024.110134" target="_blank" >10.1016/j.jobe.2024.110134</a>

Result language

angličtina

Original language name

Study of the behaviour of recycled and traditional fibres in cement composite at extreme temperatures

Original language description

In this work, the behaviour of selected fibre types in cement composite mortar at different loading temperatures was investigated. The fibres used were industrially produced polypropylene fibres, recycled fibres from PET bottles and two types of cellulose fibres of which one type is produced by recycling wastepaper. Fibres were added to the cement composites in percentages ranging from 0, 0.3, 0.6, 0.75, 0.9 to 1.2%. The properties of the cement composites, such as flexural and compressive strength, were tested at different fibres percentages at laboratory temperatures of 200, 400, 600 and 800 °C. For all types of fibres used, the workability of the fresh mixture was found to be decreased. Comparable strength results to the reference mixture were obtained when recycled polypropylene and cellulose fibres were used. Based on the results obtained, the most effective fibres dosage was determined to be 0.6%. The most positive tensile flexural and compressive strength results after a thermal loading of 800 °C were obtained with recycled cellulose fibres compared to the reference mixture without fibres. It was evaluated by microscopic observation that the cellulose fibres are present in the composite even at temperatures around 400 °C, while the polymer fibres are completely burnt out. The research confirmed the clear benefits of using recycled fibres instead of conventionally used polymer fibres.

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

20501 - Materials engineering

Project

<a href="/en/project/GA21-25813S" target="_blank" >GA21-25813S: Study of the influence of organic fibers on the properties of cement composites under extreme loading</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

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

Name of the periodical

Journal of Building Engineering

ISSN

2352-7102

e-ISSN

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Volume of the periodical

neuveden

Issue of the periodical within the volume

110134

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

20

Pages from-to

„“-„“

UT code for WoS article

001282333700001

EID of the result in the Scopus database

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