Influence of acrylic fibers geometry on the mechanical performance of fiber-cement composites

被引：19
作者：
Pakravan, H. R. [2 ,5 ]
Jamshidi, M. [1 ]
Latif, M. [3 ]
Pacheco-Torgal, F. [4 ]
机构：
[1] Iran Univ Sci & Technol, Dept 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, ATMT Res & Excellence CENMIT Ctr, Tehran, Iran
[4] Univ Minho, Sustainable Construct Grp, C TAC Res Unit, P-4800058 Guimaraes, Portugal
[5] Amirkabir Univ Technol, Res Ctr, Tehran, Iran
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2012年 / 125卷 / 04期
关键词：
acrylic fiber; shape factor; cementitious composites; flexural strength; REINFORCED CONCRETE; BEHAVIOR; CARBON;
D O I：
10.1002/app.36410
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
This article analyses the influence of acrylic fibers shape on the flexural behavior of cement composite. The fibers differ in their cross-sectional shapes due to the spinning process (wet-spun and dry-spun). The fibers were characterized by optical microscopy, and the shape factors were calculated on the basis of their geometric characteristics. Results showed that both types of acrylic fiber remarkably improved the flexural performance of the composites. Wet-spun acrylic fibers lead to high flexural strength and toughness. It was found that by increasing the fibers' shape factor by a factor of 10%, flexural strength and toughness increase to 26% and 23%, respectively. (C) 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
引用
收藏
页码：3050 / 3057
页数：8
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