Research on the absorbing characteristics of cement matrix composites filled with carbon black-coated expanded polystyrene beads

被引：16

作者：

Du, J. ^{[1
]}

Liu, S. ^{[1
]}

Guan, H. ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China

来源：

ADVANCES IN CEMENT RESEARCH | 2006年 / 18卷 / 04期

关键词：

D O I：

10.1680/adcr.2006.18.4.161

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A new cement matrix composite filled with carbon black-coated expanded polystyrene (EPS) beads was developed. The electromagnetic reflection loss of this composite in the frequency range from 2.6 to 8 GHz was studied experimentally. It was shown that filling with carbon black (CB)-coated EPS beads can improve the reflection loss of plain cement-based materials greatly, and the EPS filler ratio and sample thickness all have remarkable effects on the electromagnetic wave reflection loss of this cement matrix composite material. With a CB-coated EPS filler volume concentration of 80% and sample thickness of 20 mm, the reflection loss can reach -24 dB in the range 2.6-8 GHz and the bandwidth for -10 dB reaches 3 GHz. This composite material still has a relatively low bulk density and can be handled easily.

引用

页码：161 / 164

页数：4

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