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A platform for research: civil engineering, architecture and urbanism
Cement-based foaming wave-absorbing thermal-insulation concrete and preparation method thereof
The invention discloses cement-based foaming wave-absorbing thermal-insulation concrete and a preparation method thereof. Cement is used as a main cementing material, secondary aluminum ash, an admixture, a wave-absorbing agent, an additive (including a water reducing agent, a foam stabilizer, an accelerator, a dispersing agent and the like), an alkali activator, a modified material and water are used as main raw materials, and the cement-based porous wave-absorbing thermal insulation structure is constructed by utilizing the foaming effect of the secondary aluminum ash under the alkali activator. The cement-based foaming wave-absorbing thermal-insulation concrete is excellent in wave-absorbing performance (the wave-absorbing performance of 500MHz-40GHz is superior to-12dB, and the optimal wave-absorbing performance can reach-55dB), wide in wave-absorbing frequency band (the frequency band of the wave-absorbing performance superior to-20dB exceeds 20GHz), and excellent in thermal-insulation performance and mechanical strength, the problem of secondary aluminum ash solid waste treatment is solved, and the cement-based foaming wave-absorbing thermal-insulation concrete is suitable for industrial production. And meanwhile, the application requirements of human settlement environment and national defense engineering on electromagnetic protection are met.
本发明公开了一种水泥基发泡吸波保温混凝土及其制备方法。以水泥为主要胶凝材料，二次铝灰、掺合料、吸波剂、外加剂（包括减水剂、稳泡剂、速凝剂、分散剂等）、碱激发剂、改性材料、水为主要原料，利用二次铝灰在碱激发剂下的发泡作用构建水泥基多孔吸波保温结构。本发明中的水泥基发泡吸波保温混凝土吸波性能优良（500MHz~40GHz吸波性能优于‑12dB，最优吸波性能可达到‑55dB）、吸波频带宽（吸波性能优于‑20dB的频宽超20GHz）、保温性能及力学强度较优，解决了二次铝灰固废处理问题，同时满足人居环境及国防工程对电磁防护应用需求。
Cement-based foaming wave-absorbing thermal-insulation concrete and preparation method thereof
The invention discloses cement-based foaming wave-absorbing thermal-insulation concrete and a preparation method thereof. Cement is used as a main cementing material, secondary aluminum ash, an admixture, a wave-absorbing agent, an additive (including a water reducing agent, a foam stabilizer, an accelerator, a dispersing agent and the like), an alkali activator, a modified material and water are used as main raw materials, and the cement-based porous wave-absorbing thermal insulation structure is constructed by utilizing the foaming effect of the secondary aluminum ash under the alkali activator. The cement-based foaming wave-absorbing thermal-insulation concrete is excellent in wave-absorbing performance (the wave-absorbing performance of 500MHz-40GHz is superior to-12dB, and the optimal wave-absorbing performance can reach-55dB), wide in wave-absorbing frequency band (the frequency band of the wave-absorbing performance superior to-20dB exceeds 20GHz), and excellent in thermal-insulation performance and mechanical strength, the problem of secondary aluminum ash solid waste treatment is solved, and the cement-based foaming wave-absorbing thermal-insulation concrete is suitable for industrial production. And meanwhile, the application requirements of human settlement environment and national defense engineering on electromagnetic protection are met.
本发明公开了一种水泥基发泡吸波保温混凝土及其制备方法。以水泥为主要胶凝材料，二次铝灰、掺合料、吸波剂、外加剂（包括减水剂、稳泡剂、速凝剂、分散剂等）、碱激发剂、改性材料、水为主要原料，利用二次铝灰在碱激发剂下的发泡作用构建水泥基多孔吸波保温结构。本发明中的水泥基发泡吸波保温混凝土吸波性能优良（500MHz~40GHz吸波性能优于‑12dB，最优吸波性能可达到‑55dB）、吸波频带宽（吸波性能优于‑20dB的频宽超20GHz）、保温性能及力学强度较优，解决了二次铝灰固废处理问题，同时满足人居环境及国防工程对电磁防护应用需求。
Cement-based foaming wave-absorbing thermal-insulation concrete and preparation method thereof
一种水泥基发泡吸波保温混凝土及其制备方法
JI ZHIJIANG (author) / WU ZIHAO (author) / XIE SHUAI (author) / WANG JING (author) / ZHANG JINJUN (author) / LIU RUIRUI (author) / CAO YANXIN (author) / CHEN JIHAO (author)
2023-01-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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