Cementitious composite manufactured by extrusion technique

被引：16
|
作者：
Mu, B [1 ]
Li, ZJ [1 ]
Chui, SNC [1 ]
Peng, J [1 ]
机构：
[1] Hong Kong Univ Sci & Technol, Dept Civil & Struct Engn, Hong Kong, Peoples R China
来源：
CEMENT AND CONCRETE RESEARCH | 1999年 / 29卷 / 02期
关键词：
composite; fiber reinforcement; rheology;
D O I：
10.1016/S0008-8846(98)00097-0
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper presents the results of theoretical and experimental studies of short fiber-reinforced composite manufactured by extrusion. The cementitious composite in the extruder is considered a nonlinear viscoelastic fluid. By studying the key parameters of such a fluid, a general nonlinear viscoelastic constitutive model is introduced, in which the effects of the normal stresses are taken into account. The flows in an extruder are assumed to be two-dimensional steady shear flows. The differential equations of a flow motion are solved numerically by a finite difference method. The flow volume rate for a nonlinear viscoelastic fluid is predicted and compared with the experimental data. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：237 / 240
页数：4
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