Electromechanical Response of High-Performance Fiber-Reinforced Cementitious Composites Containing Milled Glass Fibers under Tension
The self-damage sensing capacity of high-performance fiber-reinforced cementitious composites (HPFRCCs) that blended long- (1 vol %) and medium-length (1 vol %) smooth steel fibers was considerably improved by adding milled glass fibers (MGFs) with a low electrical conductivity to a mortar matrix. T...
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doaj-48e85ac450f3419eaaf74279bccc403e2020-11-25T00:55:21ZengMDPI AGMaterials1996-19442018-06-01117111510.3390/ma11071115ma11071115Electromechanical Response of High-Performance Fiber-Reinforced Cementitious Composites Containing Milled Glass Fibers under TensionMin Kyoung Kim0Dong Joo Kim1Department of Civil and Environmental Engineering, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul 05006, KoreaDepartment of Civil and Environmental Engineering, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul 05006, KoreaThe self-damage sensing capacity of high-performance fiber-reinforced cementitious composites (HPFRCCs) that blended long- (1 vol %) and medium-length (1 vol %) smooth steel fibers was considerably improved by adding milled glass fibers (MGFs) with a low electrical conductivity to a mortar matrix. The addition of MGFs (5 wt %) significantly increased the electrical resistivity of the mortar matrix from 45.9 to 110.3 kΩ·cm (140%) and consequently improved the self-damage sensing capacity (i.e., the reduction in the electrical resistivity during the tensile strain-hardening response) from 17.27 to 25.56 kΩ·cm (48%). Furthermore, the addition of MGFs improved the equivalent bond strength of the steel fibers on the basis of the higher pullout energy owing to the accumulated cementitious material particles attached to the surfaces of steel fibers.http://www.mdpi.com/1996-1944/11/7/1115high-performance fiber-reinforced cementitious composites (HPFRCCs)self-damage sensingmilled glass fibers (MGFs)electrical resistivityinterfacial bond strength |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Min Kyoung Kim Dong Joo Kim |
spellingShingle |
Min Kyoung Kim Dong Joo Kim Electromechanical Response of High-Performance Fiber-Reinforced Cementitious Composites Containing Milled Glass Fibers under Tension Materials high-performance fiber-reinforced cementitious composites (HPFRCCs) self-damage sensing milled glass fibers (MGFs) electrical resistivity interfacial bond strength |
author_facet |
Min Kyoung Kim Dong Joo Kim |
author_sort |
Min Kyoung Kim |
title |
Electromechanical Response of High-Performance Fiber-Reinforced Cementitious Composites Containing Milled Glass Fibers under Tension |
title_short |
Electromechanical Response of High-Performance Fiber-Reinforced Cementitious Composites Containing Milled Glass Fibers under Tension |
title_full |
Electromechanical Response of High-Performance Fiber-Reinforced Cementitious Composites Containing Milled Glass Fibers under Tension |
title_fullStr |
Electromechanical Response of High-Performance Fiber-Reinforced Cementitious Composites Containing Milled Glass Fibers under Tension |
title_full_unstemmed |
Electromechanical Response of High-Performance Fiber-Reinforced Cementitious Composites Containing Milled Glass Fibers under Tension |
title_sort |
electromechanical response of high-performance fiber-reinforced cementitious composites containing milled glass fibers under tension |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2018-06-01 |
description |
The self-damage sensing capacity of high-performance fiber-reinforced cementitious composites (HPFRCCs) that blended long- (1 vol %) and medium-length (1 vol %) smooth steel fibers was considerably improved by adding milled glass fibers (MGFs) with a low electrical conductivity to a mortar matrix. The addition of MGFs (5 wt %) significantly increased the electrical resistivity of the mortar matrix from 45.9 to 110.3 kΩ·cm (140%) and consequently improved the self-damage sensing capacity (i.e., the reduction in the electrical resistivity during the tensile strain-hardening response) from 17.27 to 25.56 kΩ·cm (48%). Furthermore, the addition of MGFs improved the equivalent bond strength of the steel fibers on the basis of the higher pullout energy owing to the accumulated cementitious material particles attached to the surfaces of steel fibers. |
topic |
high-performance fiber-reinforced cementitious composites (HPFRCCs) self-damage sensing milled glass fibers (MGFs) electrical resistivity interfacial bond strength |
url |
http://www.mdpi.com/1996-1944/11/7/1115 |
work_keys_str_mv |
AT minkyoungkim electromechanicalresponseofhighperformancefiberreinforcedcementitiouscompositescontainingmilledglassfibersundertension AT dongjookim electromechanicalresponseofhighperformancefiberreinforcedcementitiouscompositescontainingmilledglassfibersundertension |
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1725230667054186496 |