Effect of Tire Cords, Steel and Polypropylene Fiber Content on the Fatigue Response of Cement-Based Mortars

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F24%3APU155452" target="_blank" >RIV/00216305:26110/24:PU155452 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scientific.net/AST.145.77" target="_blank" >https://www.scientific.net/AST.145.77</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/p-5jmFQO" target="_blank" >10.4028/p-5jmFQO</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Tire Cords, Steel and Polypropylene Fiber Content on the Fatigue Response of Cement-Based Mortars

Popis výsledku v původním jazyce

The subject of the study presented in this paper is to quantify the effect of fiber content on the mechanical and mainly fatigue response of fine-grained cement-based mortars. The reference cement-based composite was without fibers. Three types of fibers were used as dispersed reinforcement: tire cords (waste material), steel, and polypropylene. For each type of fiber, mixtures with varying reinforcement levels per volume were prepared: 0.0 % (reference composite), 0.5 %, 1.0 %, and 1.5 %. Prismatic specimens 40 mm × 40 mm × 160 mm were prepared and tested. A total of 10 composite variants were investigated. The ages of the specimens for the static three-point bending tests were 28 days, for the compression tests were 28, 120, and 275 days. While for the fatigue tests, it was approximately between 110 and 180 days. The obtained compressive strength values for the above-mentioned composite ages were approximated by a selected exponential function and the results of the fatigue tests were standardized to a nominal age of 28 days using them. All used types of reinforcement increase the strength values of the mortars even from the lowest fiber doses. A positive effect of fiber dosage above 0.5 % on the fatigue behavior of mortars was shown only in the case of reinforcement with commercial steel fibers.

Název v anglickém jazyce

Effect of Tire Cords, Steel and Polypropylene Fiber Content on the Fatigue Response of Cement-Based Mortars

Popis výsledku anglicky

The subject of the study presented in this paper is to quantify the effect of fiber content on the mechanical and mainly fatigue response of fine-grained cement-based mortars. The reference cement-based composite was without fibers. Three types of fibers were used as dispersed reinforcement: tire cords (waste material), steel, and polypropylene. For each type of fiber, mixtures with varying reinforcement levels per volume were prepared: 0.0 % (reference composite), 0.5 %, 1.0 %, and 1.5 %. Prismatic specimens 40 mm × 40 mm × 160 mm were prepared and tested. A total of 10 composite variants were investigated. The ages of the specimens for the static three-point bending tests were 28 days, for the compression tests were 28, 120, and 275 days. While for the fatigue tests, it was approximately between 110 and 180 days. The obtained compressive strength values for the above-mentioned composite ages were approximated by a selected exponential function and the results of the fatigue tests were standardized to a nominal age of 28 days using them. All used types of reinforcement increase the strength values of the mortars even from the lowest fiber doses. A positive effect of fiber dosage above 0.5 % on the fatigue behavior of mortars was shown only in the case of reinforcement with commercial steel fibers.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/8J22AT008" target="_blank" >8J22AT008: Kvantifikace role konopných vláken na samovyhojovací procesy ve vybraných kompozitech na základě lomově-mechanických parametrů (KvaRK)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

7thNon-Traditional Cement and Concrete

ISBN

9783035737189

ISSN

1662-0356

e-ISSN

—

Počet stran výsledku

10

Strana od-do

77-86

Název nakladatele

Trans Tech Publications

Místo vydání

Switzerland

Místo konání akce

Brno

Datum konání akce

25. 6. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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