Dispersion of short fibers in cement

被引:165
作者
Chung, DDL [1 ]
机构
[1] SUNY Buffalo, Composite Mat Res Lab, Buffalo, NY 14260 USA
关键词
fibers; dispersion; Portland cements; mortars; electrical resistivity;
D O I
10.1061/(ASCE)0899-1561(2005)17:4(379)
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The degree of dispersion of short microfibers in cement, as assessed by electrical resistivity measurement for the case of electrically conductive fibers at a volume fraction below the percolation threshold, is improved by the use of admixtures (namely, silica fume, acrylic particle dispersion, methylcellulose solution, and silane) and fiber surface treatment (such as ozone treatment). Acrylic particle dispersion is more effective than latex particle dispersion.
引用
收藏
页码:379 / 383
页数:5
相关论文
共 28 条
[1]  
AKKAYA Y, 2003, INNOVATIONS FIBER RE, P1
[2]  
[Anonymous], 2003, MULTIFUNCTIONAL CEME
[3]   Fracture toughness of micro-fiber reinforced cement composites [J].
Banthia, N ;
Sheng, J .
CEMENT & CONCRETE COMPOSITES, 1996, 18 (04) :251-269
[4]   Carbon fiber reinforced cement mortar improved by using acrylic dispersion as an admixture [J].
Cao, JY ;
Chung, DDL .
CEMENT AND CONCRETE RESEARCH, 2001, 31 (11) :1633-1637
[5]   Improving the dispersion of steel fibers in cement mortar by the addition of silane [J].
Cao, JY ;
Chung, DDL .
CEMENT AND CONCRETE RESEARCH, 2001, 31 (02) :309-311
[6]   Low-drying-shrinkage concrete containing carbon fibers [J].
Chen, PW ;
Chung, DDL .
COMPOSITES PART B-ENGINEERING, 1996, 27 (3-4) :269-274
[7]   CONCRETE REINFORCED WITH UP TO 0.2-PERCENT OF SHORT CARBON-FIBERS [J].
CHEN, PW ;
CHUNG, DDL .
COMPOSITES, 1993, 24 (01) :33-52
[8]  
Chen PW, 1997, ACI MATER J, V94, P147
[9]   IMPROVING THE ELECTRICAL-CONDUCTIVITY OF COMPOSITES COMPRISED OF SHORT CONDUCTING FIBERS IN A NONCONDUCTING MATRIX - THE ADDITION OF A NONCONDUCTING PARTICULATE FILLER [J].
CHEN, PW ;
CHUNG, DDL .
JOURNAL OF ELECTRONIC MATERIALS, 1995, 24 (01) :47-51
[10]  
Chung D.D.L., 1994, Carbon Fiber Composites