Enhancing bonding behavior between carbon fiber-reinforced polymer plates and concrete using carbon nanotube reinforced epoxy composites

被引：26

作者：

Jongvivatsakul, Pitcha ^{[1
]}

Thongchom, Chanachai ^{[2
]}

Mathuros, Amaras ^{[3
]}

Prasertsri, Tosporn ^{[4
]}

Adamu, Musa ^{[5
,6
]}

Orasutthikul, Shanya ^{[7
]}

Lenwari, Akhrawat ^{[8
]}

Charainpanitkul, Tawatchai ^{[9
,10
]}

机构：

[1] Chulalongkorn Univ, Fac Engn, Ctr Excellence Innovat Construction Mat, Dept Civil Engn, Bangkok 10330, Thailand

[2] Thammasat Univ, Thammasat Sch Engn, Dept Civil Engn, Bangkok 12120, Thailand

[3] Bangkokthonburi Univ, Fac Engn, Dept Civil Engn, Bangkok 10170, Thailand

[4] Rajamangala Univ Technol Tawan ok, Fac Engn & Architecture, Dept Civil Engn, Bangkok 10330, Thailand

[5] Bayero Univ, Fac Engn, Dept Civil Engn, PMB 3011, Kano, Nigeria

[6] Prince Sultan Univ, Coll Engn, Engn Management Dept, Riyadh 11586, Saudi Arabia

[7] Chulalongkorn Univ, Fac Architecture, Dept Architecture, Bangkok 10330, Thailand

[8] Chulalongkorn Univ, Fac Engn, Dept Civil Engn, Composite Struct Res Unit, Bangkok 10330, Thailand

[9] Chulalongkorn Univ, Fac Engn, Ctr Excellence Particle & Mat Proc Technol, Dept Chem Engn, Bangkok 10330, Thailand

[10] Res Network NANOTEC KU Nanocatalyst & Nanomat Sust, Bangkok 10900, Thailand

来源：

CASE STUDIES IN CONSTRUCTION MATERIALS | 2022年 / 17卷

关键词：

Bonding behavior; Carbon nanotubes; Epoxy; Carbon fiber reinforced polymer; Concrete; RC BEAMS; MECHANICAL-PROPERTIES; CURING CONDITIONS; SLIP BEHAVIOR; FRP; STRENGTH; ADHESIVE; PERFORMANCE; INTERFACE; ENHANCEMENT;

D O I：

10.1016/j.cscm.2022.e01407

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Externally bonded carbon fiber reinforced polymer (CFRP) composites have been widely used as repairing or strengthening materials for deteriorated reinforced concrete (RC) structures. This study discusses whether carbon nanotube (CNT) can be used as an additive to enhance bonding strength between concrete and CFRP. In this study, two CNT types: single walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs), were mixed with two different types of epoxies. CNTs were added at 0.25%, 0.5%, and 1.00% by weight of epoxy to obtain the optimal performance. Single-shear test were conducted to investigate bonding behavior including bond strength, ultimate slip, effective bond length, bond stress-slip relationship, interfacial fracture energy, and crack formation between CFRP plate and concrete. The results showed that epoxy modified by 0.5% SWCNTs and 1.0% MWCNTs by weight of epoxy enhance the ultimate load and slip, bond strength, and interfacial fracture energy when compared to plain epoxy. However, high density epoxy modified with SWCNTs/MWCNTs showed diminished bonding properties.

引用

页数：14

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