Silane-treated carbon fiber for reinforcing cement

被引：58
|
作者：
Xu, YS [1 ]
Chung, DDL [1 ]
机构：
[1] SUNY Buffalo, Composite Mat Res Lab, Buffalo, NY 14260 USA
来源：
CARBON | 2001年 / 39卷 / 13期
基金：
美国国家科学基金会;
关键词：
carbon fibers; carbon composites; surface treatment; X-ray photoelectron spectroscopy; mechanical properties;
D O I：
10.1016/S0008-6223(01)00028-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The tensile strength of cement paste was increased by 56% and the modulus and ductility were increased by 39% by using silane-treated carbon fibers and silane-treated silica fume, relative to the values for cement paste with as-received carbon fibers and as-received silica fume. Silane treatment of fibers and silica fume contributed about equally to the strengthening. Silane treatment of fibers and silica fume also decreased the air void content and the drying shrinkage. The strengthening, air void content reduction and drying shrinkage reduction were less when the fiber treatment involved either potassium dichromate or ozone. Silane's effectiveness is due to its hydrophilic nature. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1995 / 2001
页数：7
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