Comparison between polyolefin fibre reinforced vibrated conventional concrete and self-compacting concrete

被引：78
|
作者：
Alberti, M. G. [1 ]
Enfedaque, A. [1 ]
Galvez, J. C. [1 ]
机构：
[1] Univ Politecn Madrid, Dept Ingn Civil Construcc, ETS Ingn Caminos Canales & Puertos, E-28040 Madrid, Spain
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2015年 / 85卷
关键词：
Fibre reinforced concrete; Polyolefin fibres; Fracture; Self-compacting concrete; Macro-synthetic structural fibres; Fresh-state properties; Fracture energy; Flexural tensile strength; Residual strength; Orientation factor; MECHANICAL-PROPERTIES; STEEL FIBERS; ORIENTATION; DESIGN; FRC;
D O I：
10.1016/j.conbuildmat.2015.03.007
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Reinforcing concrete with macro-synthetic structural fibres has become an alternative due to their capacity to comply with standards to substitute steel bars. Compaction and pouring processes influence fibre positioning and orientation and are of key importance for the effectiveness of fibre-reinforcement. This research compares self-compacting concrete with vibrated conventional concrete reinforced with several dosages of polyolefin fibres. The differences between them in fresh and hardened state were assessed and were more noticeable for high-content of fibres. However, fibres were more evenly distributed in the fracture surfaces of self-compacting specimens and wall effects were more evident in the vibrated concrete specimens. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：182 / 194
页数：13
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