Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modified recycled aggregate concrete with electromagnetic wave transmission function and preparation method thereof
The invention discloses modified recycled aggregate concrete with a wave transmission function and a preparation method thereof, and belongs to the field of building materials. The modified recycled aggregate concreteis prepared from the following components in parts by weight: 400 to 450 parts of sulphoaluminate cement, 40 to 80 parts of a mineral admixture, 30 to 42 parts of composite plant fiber, 11 to 18 parts of a composite metal salt, 101 to 138 parts of a wave transmission material, 700 to 900 parts of natural sand, 800 to 1100 parts of modified recycled coarse aggregate, 85 to 150 parts of mixing water and 2 to 5 parts of a water reducing agent, wherein the wave transmission material is obtained by mixing chopped basalt fiber, polymethyl methacrylate, a polytetrafluoroethylene concentrated dispersion liquid and quartz chopped fiber, and the modified recycled coarse aggregate is obtained by treating silicon nitride ceramic fragments, glass beads and polytetrafluoroethylene waste plastic particles. According to the invention, the 28-day compressive strength of the concrete can reach 49-53 MPa, and within the frequency range of 4-18 GHz, the bandwidth with the wave transmission rate larger than -3dB is larger than 8.2 GHz.
一种具有透波功能的改性再生骨料混凝土及其制备方法，属于建筑材料领域。其组成为：硫铝酸盐水泥400‑450份重量份，矿物掺合料40‑80重量份，复合植物纤维30‑42重量份，复合金属盐11‑18重量份，透波材料101‑138重量份，天然砂700‑900重量份，改性再生粗骨料800‑1100重量份。拌和水85‑150重量份，减水剂2‑5重量份。透波材料由短切玄武岩纤维、聚甲基丙烯酸甲酯、聚四氟乙烯浓缩分散液、石英短切纤维混合得到；改性再生粗骨料由氮化硅陶瓷碎块、玻璃珠、聚四氟乙烯废塑料颗粒处理得到。混凝土28天抗压强度可以达到49‑53MPa，在4‑18GHz频率范围内，透波率大于‑3dB的带宽大于8.2GHz。
Modified recycled aggregate concrete with electromagnetic wave transmission function and preparation method thereof
The invention discloses modified recycled aggregate concrete with a wave transmission function and a preparation method thereof, and belongs to the field of building materials. The modified recycled aggregate concreteis prepared from the following components in parts by weight: 400 to 450 parts of sulphoaluminate cement, 40 to 80 parts of a mineral admixture, 30 to 42 parts of composite plant fiber, 11 to 18 parts of a composite metal salt, 101 to 138 parts of a wave transmission material, 700 to 900 parts of natural sand, 800 to 1100 parts of modified recycled coarse aggregate, 85 to 150 parts of mixing water and 2 to 5 parts of a water reducing agent, wherein the wave transmission material is obtained by mixing chopped basalt fiber, polymethyl methacrylate, a polytetrafluoroethylene concentrated dispersion liquid and quartz chopped fiber, and the modified recycled coarse aggregate is obtained by treating silicon nitride ceramic fragments, glass beads and polytetrafluoroethylene waste plastic particles. According to the invention, the 28-day compressive strength of the concrete can reach 49-53 MPa, and within the frequency range of 4-18 GHz, the bandwidth with the wave transmission rate larger than -3dB is larger than 8.2 GHz.
一种具有透波功能的改性再生骨料混凝土及其制备方法，属于建筑材料领域。其组成为：硫铝酸盐水泥400‑450份重量份，矿物掺合料40‑80重量份，复合植物纤维30‑42重量份，复合金属盐11‑18重量份，透波材料101‑138重量份，天然砂700‑900重量份，改性再生粗骨料800‑1100重量份。拌和水85‑150重量份，减水剂2‑5重量份。透波材料由短切玄武岩纤维、聚甲基丙烯酸甲酯、聚四氟乙烯浓缩分散液、石英短切纤维混合得到；改性再生粗骨料由氮化硅陶瓷碎块、玻璃珠、聚四氟乙烯废塑料颗粒处理得到。混凝土28天抗压强度可以达到49‑53MPa，在4‑18GHz频率范围内，透波率大于‑3dB的带宽大于8.2GHz。
Modified recycled aggregate concrete with electromagnetic wave transmission function and preparation method thereof
一种具有电磁透波功能的改性再生骨料混凝土及其制备方法
LI YUE (Autor:in) / CHENG YAPING (Autor:in) / LIU JIANGLIN (Autor:in) / YANG BIN (Autor:in) / JIN CAIYUN (Autor:in)
17.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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