Effect of carbon fibres on the mechanical properties and corrosion levels of reinforced portland cement mortars

被引：79
|
作者：
Garcés, P
Fraile, J
Vilaplana-Ortego, E
Cazorla-Amorós, D
Alcocel, EG
Andión, LG
机构：
[1] Univ Alicante, Dept Ing Construcc, E-03080 Alicante, Spain
[2] Univ Alicante, Dept Quim Inorgan, E-03080 Alicante, Spain
[3] Univ Alicante, Dept Construcc Arquitecton, E-03080 Alicante, Spain
来源：
CEMENT AND CONCRETE RESEARCH | 2005年 / 35卷 / 02期
关键词：
mortars; carbon fibres; strength; corrosion;
D O I：
10.1016/j.cemconres.2004.05.013
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The changes in mechanical properties of portland cement mortars due to the addition of carbon fibres (CF) to the mix have been studied. Compression and flexural strengths have been determined in relation to the amount of fibres added to the mix, water/binder ratio, curing time and porosity. Additionally, the corrosion level of reinforcing steel bars embedded in portland cement mortars containing CF and silica fume (SF) have also been investigated and reinforcing steel corrosion rates have been determined. As a consequence of the large concentration of oxygen groups in CF surface, a good interaction between the CF and the water of the mortar paste is to be expected. A CF content of 0.5% of cement weight implies an optimum increase in flexural strength and an increase in embedded steel corrosion. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：324 / 331
页数：8
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