Polymeric fibre adhesion to the cementitious matrix related to the fibres type, water to cement ratio and curing time

被引：6

作者：

Pakravan, H. R. ^{[2
,3
]}

Jamshidi, M. ^{[1
]}

Latifi, M. ^{[2
,3
]}

Chehimi, M. M. ^{[4
]}

机构：

[1] Iran Univ Sci & Technol, Sch Chem Engn, Polymer Grp, Tehran, Iran

[2] Amirkabir Univ Technol, Dept Text Engn, Text Excellence Ctr, Tehran, Iran

[3] Amirkabir Univ Technol, Dept Text Engn, Res Ctr, Tehran, Iran

[4] Univ Paris Diderot, ITODYS, UMR CNRS 7086, F-75013 Paris, France

来源：

INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 2012年 / 35卷

关键词：

Adhesion; Loss-function; Polymeric fibre; Cement matrix; SURFACE FREE-ENERGY; INTERFACE; STRENGTH; BEHAVIOR;

D O I：

10.1016/j.ijadhadh.2012.02.006

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this study adhesion of some polymeric fibres to a cement matrix was evaluated by both theoretical and experimental approach. The adhesion results are interpreted in terms of fibre nature, water to cement ratio and curing. It was found that practical work of adhesion (G) is ten times larger than thermodynamic work of adhesion (W) between fibre and cement matrix. By employing adhesion theory to the composite system, fibre/cement interactions are better described. The results indicated that chemical adhesion between cement matrix and fibres decreased with decrease in water to cement ratio while mechanical bonding increased. The application of adhesion theory to cement based composite leads to calculation of a new parameter which is called energy dissipation (loss function). It was found that the loss function of the fibre-cement system increases more than 21% by increase in the curing time of the matrix from 14 days to 28 days. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：102 / 107

页数：6

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