Reseach on the building electromagnetic wave absorber mixing high-iron fly ash
HUANG Yu-bin
QIAN Jue-shi
ZHANG Jian-ye
Abstract：The wave absorbing properties of eementitious materials blended with high-iron fly ash were studied experimentally. The results show that the high-iron fly ash particle is an effective electromagnetic wave absorber characterized by dielectric loss for cement based composite and can be used successfully in civil engineering. The reflectivity R for the composite materials is less than -5 dB in the range of 9. 5～18. 0 GHz,while the minimum refleetivity is lower than - 11 dB. The electromagnetic characteristic of high-iron fly ash significantly correlates with the content of magnetic iron oxide. Therefore, electromagnetic loss of the high-iron fly ash can be enhanced through magnetic separation and steel slag partly incorporation.
Keywords：high-iron fly ashbuilding electromagnetic wave absorberelectromagnetic parameterscement based composite
Publication Date：2010-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 135-139 )