Effect of reinforcing wool fibres on fracture and energy absorption properties of an earthen material

被引：107
作者：
Aymerich, F. [1 ]
Fenu, L. [2 ]
Meloni, P. [3 ]
机构：
[1] Univ Cagliari, Dept Mech Engn, I-09123 Cagliari, Italy
[2] Univ Cagliari, Dept Struct Engn, I-09123 Cagliari, Italy
[3] Univ Cagliari, Dept Chem Engn & Mat, I-09123 Cagliari, Italy
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2012年 / 27卷 / 01期
关键词：
Earthen materials; Wool fibres; Toughness; Fracture; MECHANICAL-PROPERTIES; MUD BRICK; BEHAVIOR;
D O I：
10.1016/j.conbuildmat.2011.08.008
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The study investigated the improvements in strength and crack resistance induced by the introduction of wool fibres in an earthen material. Earthen samples reinforced by wool fibres of various fibre lengths at different fibre weight fractions were tested under flexural loading to examine the structural response of the material in terms of first-crack resistance, post-cracking residual strength and energy absorption capability. It was found that the fibrous reinforcement greatly improved the residual strength, the ductility and the energy absorption of the reinforced material as compared to the unreinforced soil. The results of the study also showed that fibre length had a notable influence on the post-fracture response of the material at large deformation regimes. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：66 / 72
页数：5
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