Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Electromagnetic wave absorbing concrete and preparation method thereof
The invention relates to electromagnetic wave absorbing concrete and a preparation method of the concrete and belongs to the field of building materials. The concrete is prepared from a polymethylacrylic composite wave absorbing material containing nano LiFe5O8/graphene oxide, a nano beta-MnO2/graphene oxide composite wave absorbing material, water, cement, slag powder, coal ash, a water reducer, a fine aggregate and macadams by the steps of mixing, stirring and pouring. The concrete provided by the invention shows a good broadband microwave absorbing performance in a range of 2-18GHz, and the bandwidth of the concrete lower than -7dB is optimally 13.7GHz and the bandwidth of the concrete lower than -10dB is optimally 9.8GHz, so that the concrete can be applied to electromagnetic wave protection of critical buildings of military and administrative branches, functional building internally provided with a lot of precise electronic instruments, buildings adjacent to radar, microwave base stations, high power wireless communication transmitting stations and the like. The concrete provided by the invention is innovative, high in scientific content and broad in application prospect.
Electromagnetic wave absorbing concrete and preparation method thereof
The invention relates to electromagnetic wave absorbing concrete and a preparation method of the concrete and belongs to the field of building materials. The concrete is prepared from a polymethylacrylic composite wave absorbing material containing nano LiFe5O8/graphene oxide, a nano beta-MnO2/graphene oxide composite wave absorbing material, water, cement, slag powder, coal ash, a water reducer, a fine aggregate and macadams by the steps of mixing, stirring and pouring. The concrete provided by the invention shows a good broadband microwave absorbing performance in a range of 2-18GHz, and the bandwidth of the concrete lower than -7dB is optimally 13.7GHz and the bandwidth of the concrete lower than -10dB is optimally 9.8GHz, so that the concrete can be applied to electromagnetic wave protection of critical buildings of military and administrative branches, functional building internally provided with a lot of precise electronic instruments, buildings adjacent to radar, microwave base stations, high power wireless communication transmitting stations and the like. The concrete provided by the invention is innovative, high in scientific content and broad in application prospect.
Electromagnetic wave absorbing concrete and preparation method thereof
OU GUOYUAN (Autor:in) / OU QINGFENG (Autor:in) / MAO XIANGHUA (Autor:in) / JIANG GUOPING (Autor:in)
27.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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