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A platform for research: civil engineering, architecture and urbanism
Full-scale loss type electromagnetic protection concrete
The invention relates to full-scale loss type electromagnetic protection concrete, which is characterized in that an electromagnetic wave-absorbing matrix adopts a foam geopolymer with the pore size of 100-500 microns, a wave-absorbing agent is nano ilmenite powder, and the ferrite content of the nano ilmenite powder is greater than 30%; the foam geopolymer is prepared from the following components by mass: water-cement ratio of 0.4, coal ash dosage range of 300-350g, alkali activator dosage range of 60-70g, wave-absorbing agent dosage range of 0.1-0.5 g, foaming agent dosage range of 5-10g, foam stabilizer dosage range of 0.75 g, water reducer dosage range of 0.3-0.4 g and accelerator dosage range of 0.3-0.4 g; the foam geopolymer is prepared by adopting a physical foaming method, and a foaming agent is prepared by mixing sodium dodecyl benzene sulfonate and rosin soap according to the mass ratio of 2: 1; a metasurface micro-unit structure surface layer made of the same material as the electromagnetic wave-absorbing base body is arranged on the surface of the electromagnetic wave-absorbing base body, the surface layer is arranged in a protruding mode, the protruding shape is at least one of a pyramid shape, a wedge shape, a cone shape and a cylinder shape, and the protruding height of the surface layer ranges from 32 mm to 40 mm. And the concrete can effectively absorb electromagnetic waves in a range of 1-18 GHz.
本发明为一种全尺度损耗型电磁防护混凝土，电磁吸波基体采用孔隙为100‑500μm的泡沫地聚物，吸波剂为纳米钛铁矿矿粉，其铁氧体含量大于30％；所述泡沫地聚物按质量计组成为：水灰比为0.4，粉煤灰掺量范围300‑350g，碱激发剂掺量范围60‑70g，吸波剂掺量范围0.1‑0.5g，发泡剂掺量范围为5‑10g，稳泡剂掺量为0.75g，减水剂掺量范围为0.3‑0.4g，速凝剂掺量范围为0.3‑0.4g；采用物理发泡法制备该泡沫地聚物，发泡剂为十二烷基苯磺酸钠与松香皂按质量2:1混合制得；在电磁吸波基体表面设置与电磁吸波基体同材料的超表面微单元结构表层，表层采用凸起设置，凸起形状为角锥型、尖劈型、圆锥型、圆柱型中的至少一种，表层凸起高度为32‑40mm。使得混凝土在1‑18GHz范围能够有效吸收电磁波。
Full-scale loss type electromagnetic protection concrete
The invention relates to full-scale loss type electromagnetic protection concrete, which is characterized in that an electromagnetic wave-absorbing matrix adopts a foam geopolymer with the pore size of 100-500 microns, a wave-absorbing agent is nano ilmenite powder, and the ferrite content of the nano ilmenite powder is greater than 30%; the foam geopolymer is prepared from the following components by mass: water-cement ratio of 0.4, coal ash dosage range of 300-350g, alkali activator dosage range of 60-70g, wave-absorbing agent dosage range of 0.1-0.5 g, foaming agent dosage range of 5-10g, foam stabilizer dosage range of 0.75 g, water reducer dosage range of 0.3-0.4 g and accelerator dosage range of 0.3-0.4 g; the foam geopolymer is prepared by adopting a physical foaming method, and a foaming agent is prepared by mixing sodium dodecyl benzene sulfonate and rosin soap according to the mass ratio of 2: 1; a metasurface micro-unit structure surface layer made of the same material as the electromagnetic wave-absorbing base body is arranged on the surface of the electromagnetic wave-absorbing base body, the surface layer is arranged in a protruding mode, the protruding shape is at least one of a pyramid shape, a wedge shape, a cone shape and a cylinder shape, and the protruding height of the surface layer ranges from 32 mm to 40 mm. And the concrete can effectively absorb electromagnetic waves in a range of 1-18 GHz.
本发明为一种全尺度损耗型电磁防护混凝土，电磁吸波基体采用孔隙为100‑500μm的泡沫地聚物，吸波剂为纳米钛铁矿矿粉，其铁氧体含量大于30％；所述泡沫地聚物按质量计组成为：水灰比为0.4，粉煤灰掺量范围300‑350g，碱激发剂掺量范围60‑70g，吸波剂掺量范围0.1‑0.5g，发泡剂掺量范围为5‑10g，稳泡剂掺量为0.75g，减水剂掺量范围为0.3‑0.4g，速凝剂掺量范围为0.3‑0.4g；采用物理发泡法制备该泡沫地聚物，发泡剂为十二烷基苯磺酸钠与松香皂按质量2:1混合制得；在电磁吸波基体表面设置与电磁吸波基体同材料的超表面微单元结构表层，表层采用凸起设置，凸起形状为角锥型、尖劈型、圆锥型、圆柱型中的至少一种，表层凸起高度为32‑40mm。使得混凝土在1‑18GHz范围能够有效吸收电磁波。
Full-scale loss type electromagnetic protection concrete
一种全尺度损耗型电磁防护混凝土
MA GUOWEI (author) / ZHANG YI (author) / LIU XIONGFEI (author) / HAO YIFEI (author)
2024-07-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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