Interfacial Properties of Textile-Reinforced Concrete and Concrete in Chloride Freezing-and-Thawing Cycle

Textile-reinforced concrete (TRC), which has superior crack- and corrosion-resistance capacity, is a type of available inorganic repairing material. However, TRC is still undefined in terms of its interfacial performance between it and existing concrete under marine erosion environments. In this pap...

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Bibliographic Details
Published inACI materials journal Vol. 115; no. 2; pp. 197 - 208
Main Authors Yin, Shi-ping, Li, Yao, Jin, Zhe-yu, Li, Peng-hao
Format Journal Article
LanguageEnglish
Published Farmington Hills American Concrete Institute 01.03.2018
Subjects
Analysis
Bond strength
Carbon fibers
Chloride
Civil engineering
Concrete
Concrete structures
Corrosion
Corrosion resistance
Erosion
Fiber reinforced concrete
Freezing
Interfacial properties
Maintenance
Materials research
Mechanical properties
Melting
Precracking
Properties
Reinforced concrete
Roughening
Shear tests
Surface tension
Textiles
Yarn
China
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Summary:Textile-reinforced concrete (TRC), which has superior crack- and corrosion-resistance capacity, is a type of available inorganic repairing material. However, TRC is still undefined in terms of its interfacial performance between it and existing concrete under marine erosion environments. In this paper; a double-side shear test was used to study the effect of TRC precracking, concrete strength, interface Pm, short-cut ,fiber, and freezing-and-thawing cycle number on the interfacial bond properties between TRC and existing concrete under chloride salt erosion and freezing-and-thawing cycles. The results indicate that the shear capacity can be imprvved by increasing the concrete strength, roughening the reinforced interface, and adding short-cutjthers into the TRC. In addition to that, proper precracking in TRC can also improve the interfacial properties; however; increasing the precracking of TRC to a certain extent will decrease the interfacial properties. In addition, asfreezing-and-thawing cycles increase, interfacial properties between TRC and existing concrete will decrease, obviously without serious deterioration in the TRC layer Therefore, TRC has the potential application of repairing and enhancing existing concrete structures under a harshfreezing-and-thawing environment. Keywords: chloride freezing-and-thawing cycle; interface slip; reinforcement form; shearing strength; textile-reinforced concrete (TRC).
ISSN:0889-325X
1944-737X
DOI:10.14359/51701919