A modified pull-out test for bond of near-surface mounted FRP rods in concrete

被引：214

作者：

De Lorenzis, L ^{[1
]}

Rizzo, A ^{[1
]}

La Tegola, A ^{[1
]}

机构：

[1] Univ Lecce, Dept Innovat Engn, I-73100 Lecce, Italy

来源：

COMPOSITES PART B-ENGINEERING | 2002年 / 33卷 / 08期

关键词：

carbon fibre; reinforcement; bond; mechanical testing;

D O I：

10.1016/S1359-8368(02)00052-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Among the strengthening techniques based on fiber-reinforced polymer (FRP) composites, the use of near-surface mounted (NSM) FRP rods is emerging as a promising technology for increasing flexural and shear strength of deficient concrete, masonry and timber members. In order for this technique to perform effectively, bond between the NSM reinforcement and the substrate material is a critical issue. Aim of this project was to investigate the mechanics of bond between NSM FRP rods and concrete, and to analyze the influence of the most critical parameters on the bond performance. Following up to previous investigations, a different type of specimen was designed in order to obtain a test procedure as efficient and reliable as possible. Among the investigated variables were: type of FRP rod (material and surface pattern), groove-filling material, bonded length, and groove size. Results of the first phase of the project are presented and discussed in this paper. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：589 / 603

页数：15