Experimental investigations on bond strength between coconut fibre and concrete

被引：104

作者：

Ali, Majid ^{[1
]}

Li, Xiaoyang ^{[1
]}

Chouw, Nawawi ^{[1
]}

机构：

[1] Univ Auckland, Auckland Mail Ctr, Dept Civil & Environm Engn, Auckland 1142, New Zealand

来源：

MATERIALS & DESIGN | 2013年 / 44卷

关键词：

Coconut fibre; Composite material; Bond strength; Fibre pretreatment and pull-out test; REINFORCED CONCRETE; MORTAR COMPOSITES; DURABILITY;

D O I：

10.1016/j.matdes.2012.08.038

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effect of fibre embedment lengths, diameters, pretreatment conditions and concrete mix design ratios on the bond strength between single coconut fibre and concrete is investigated. Fibres are prepared and categorised manually. Fibre diameters are measured by a stereomicroscope. Fibre and concrete properties are also determined experimentally. The simplified equations are proposed for estimating the fibre tensile stress, elastic modulus and toughness. Single fibre pull-out tests are carried out to determine load-slippage curves with the help of an Instron tensile machine having load cell. Bond strength and energy required for fibre pullout are calculated from the experimental data. The results show that fibres have the maximum bond strength with concrete when (i) embedment length is 30 mm, (ii) fibres are thick, (iii) treated with boiling water, and (iv) concrete mix design ratio is 1:3:3. Similar effects are observed for energy required for fibre pullout. With the obtained knowledge, empirical equations are also developed to determine the bond strength and energy required for fibre pullout. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：596 / 605

页数：10

共 29 条

[11]

Jianxin L., 1994, M5S1A4 U TOR DEP CHE

[12] Durability of slag mortar reinforced with coconut fibre [J].

John, VM ;

Cincotto, MA ;

Sjöström, C ;

Agopyan, V ;

Oliveira, CTA .

CEMENT & CONCRETE COMPOSITES, 2005, 27 (05) :565-574

[13] Flexural characteristics of coir fiber reinforced cementitious composites [J].

Li, Zhijian ;

Wang, Lijing ;

Wang, Xungai .

FIBERS AND POLYMERS, 2006, 7 (03) :286-294

[14] EFFECTS OF THE SURFACE TREATMENTS OF LIGNOCELLULOSIC FIBERS ON THEIR DEBONDING STRESS [J].

MANI, P ;

SATYANARAYANA, KG .

JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY, 1990, 4 (01) :17-24

[15] Impact resistance of fibre-reinforced concrete [J].

Mindess, S. ;

Zhang, L. .

PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-STRUCTURES AND BUILDINGS, 2009, 162 (01) :69-76

[16] Characterization of the morphological, physical, and mechanical properties of seven nonwood plant fiber bundles [J].

Munawar, Sasa Sofyan ;

Umemura, Kenji ;

Kawai, Shuichi .

JOURNAL OF WOOD SCIENCE, 2007, 53 (02) :108-113

[17] On the effect of different polymer matrix and fibre treatment on single fibre pullout test using betelnut fibres [J].

Nirrnal, Umar ;

Singh, Narish ;

Hashim, Jamil ;

Lau, Saijod T. W. ;

Jamil, Nadia .

MATERIALS & DESIGN, 2011, 32 (05) :2717-2726

[18]

Paramasivam P., 1984, Int J Cem Compos Lightweight Concr, V6, P19, DOI [10.1016/0262-5075(84)90056-3, DOI 10.1016/0262-5075(84)90056-3]

[19] Studies on the durability of natural fibres and the effect of corroded fibres on the strength of mortar [J].

Ramakrishna, G ;

Sundararajan, T .

CEMENT & CONCRETE COMPOSITES, 2005, 27 (05) :575-582

[20] Impact strength of a few natural fibre reinforced cement mortar slabs: a comparative study [J].

Ramakrishna, G ;

Sundararajan, T .

CEMENT & CONCRETE COMPOSITES, 2005, 27 (05) :547-553

← 1 2 3 →