Temperature and moisture effects on selected properties of wood fiber-cement composites

被引：18

作者：

Blankenhorn, PR ^{[1
]}

Silsbee, MR

Blankenhorn, BD

DiCola, M

Kessler, K

机构：

[1] Penn State Univ, Forest Resources Lab, University Pk, PA 16802 USA

[2] Penn State Univ, Intercoll Mat Res Lab, University Pk, PA 16802 USA

来源：

CEMENT AND CONCRETE RESEARCH | 1999年 / 29卷 / 05期

关键词：

composite; fiber reinforcement; organic materials; compressive strength; freezing and thawing;

D O I：

10.1016/S0008-8846(99)00046-0

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The effects of moisture cycling on the dimensional stability and temperature cycling on the compressive strength of treated wood fiber-cement composites were investigated, The Kraft softwood fibers and the hardwood fibers were treated with an aqueous acrylic emulsion or alkylalkoxysilane prior to manufacturing into wood fiber-cement composites. Moisture cycling results indicated that the treated fiber-cement composites were more resistant to deterioration than the neat cement specimens. The alkylalkoxysilane-treated fiber-cement composites resisted deterioration more than the acrylic emulsion-treated fiber-cement composites. Treated hardwood fiber-cement composites were more resistant than the treated Kraft fiber-cement composites. The effects of temperature cycling on the compressive strength values produced similar results. The treated fibers were more resistant to deterioration than the neat cement. The alkylalkoxysilane-treated Kraft and hardwood fiber-cement composites had higher average compressive strength values than the acrylic emulsion-treated wood fiber-cement composites. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：737 / 741

页数：5

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