Influence of polypropylene and steel fibers on the performance and crack repair of self-compacting concrete

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00351471" target="_blank" >RIV/68407700:21110/21:00351471 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3390/ma14195506" target="_blank" >https://doi.org/10.3390/ma14195506</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma14195506" target="_blank" >10.3390/ma14195506</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of polypropylene and steel fibers on the performance and crack repair of self-compacting concrete

Popis výsledku v původním jazyce

The research reported in this paper aims to evaluate the epoxy injection technique used to strengthen fiber reinforced self-compacting concrete (FRSCC) with high strength. This method is carried out on ruptured concrete specimens to assess the efficiency of epoxy resin adhesive injection retrofitting technique for strength and stiffness. Five FRSCC mixes were designed and placed using different types (steel and polypropylene) and contents (0%, 0.25%, and 0.45% by volume) of fibers. Fresh and mechanical properties of produced mixes were evaluated to assess the impact of fibers on the behavior of FRSCC. Results showed that the workability of FRSCC is reduced by increasing steel or polypropylene fiber content, however, the rheological characteristics of placed mixes satisfied EFNARC recommendation for fresh concrete. Also, splitting tensile, flexural, and shear strengths were enhanced by increasing fiber content. The simultaneous application of epoxy injection in FRSCC for repairing damaged concrete beams was shown to be highly effective.

Název v anglickém jazyce

Influence of polypropylene and steel fibers on the performance and crack repair of self-compacting concrete

Popis výsledku anglicky

The research reported in this paper aims to evaluate the epoxy injection technique used to strengthen fiber reinforced self-compacting concrete (FRSCC) with high strength. This method is carried out on ruptured concrete specimens to assess the efficiency of epoxy resin adhesive injection retrofitting technique for strength and stiffness. Five FRSCC mixes were designed and placed using different types (steel and polypropylene) and contents (0%, 0.25%, and 0.45% by volume) of fibers. Fresh and mechanical properties of produced mixes were evaluated to assess the impact of fibers on the behavior of FRSCC. Results showed that the workability of FRSCC is reduced by increasing steel or polypropylene fiber content, however, the rheological characteristics of placed mixes satisfied EFNARC recommendation for fresh concrete. Also, splitting tensile, flexural, and shear strengths were enhanced by increasing fiber content. The simultaneous application of epoxy injection in FRSCC for repairing damaged concrete beams was shown to be highly effective.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA19-14789S" target="_blank" >GA19-14789S: Vysokohodnotný beton se zvýšenou samoléčivou schopností</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Materials

ISSN

1996-1944

e-ISSN

1996-1944

Svazek periodika

14

Číslo periodika v rámci svazku

19

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

15

Strana od-do

—

Kód UT WoS článku

000707020300001

EID výsledku v databázi Scopus

2-s2.0-85115703922