Excellent bonding behaviour of novel surface-tailored fibre composite rods with cementitious matrix

被引：6

作者：

Cunha, Fernando ^{[1
]}

Rana, Sohel ^{[1
]}

Fangueiro, Raul ^{[1
,2
]}

Vasconcelos, Graca ^{[2
]}

机构：

[1] Univ Minho, Sch Engn, FMRG, P-4800058 Guimaraes, Portugal

[2] Univ Minho, Dept Civil Engn, P-4800058 Guimaraes, Portugal

来源：

BULLETIN OF MATERIALS SCIENCE | 2014年 / 37卷 / 05期

关键词：

Composite rods; surface tailoring; cementitious matrix; pull-out test; bonding characteristics; CONCRETE; BARS;

D O I：

10.1007/s12034-014-0039-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel composite rods were produced by a special braiding technique that involves braiding of polyester yarns around a core of resin-impregnated carbon fibres and subsequent curing. The surface roughness of these braided rods was tailored by replacing one or two simple yarns in the outer-braided layer with braided yarns (produced from 8 simple yarns) and adjusting the take-up velocity. Pull-out tests were carried out to characterize the bond behaviour of these composite rods with cementitious matrix. It was observed that the rod produced with two braided yarns in the outer cover and highest take-up speed was ruptured completely before pull-out, leading to full utilization of its tensile strength, and exhibited 134% higher pull-out force as compared to the rods produced using only simple braiding yarns.

引用

页码：1013 / 1016

页数：4

共 7 条

[1] Experimental study of bond behaviour between concrete and FRP bars using a pull-out test [J].