Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Phase-change lightweight aggregate, preparation method and phase-change thermal insulation building material for thermal bridge
The invention discloses a phase-change lightweight aggregate, a preparation method and a phase-change thermal insulation building material for a thermal bridge, and belongs to the technical field of building materials. The expanded perlite is utilized to adsorb the phase change material in vacuum, and then the cement is utilized to package open pore channels of the expanded perlite, so that the phase change lightweight aggregate is prepared, the leakage problem of the phase change heat storage material is solved, the high-temperature leakage loss of the composite phase change material is lower than 4%, and the phase change lightweight aggregate has no leakage phenomenon. The phase-change thermal insulation building material suitable for cast-in-place in a thermal bridge environment is prepared by utilizing the phase-change lightweight aggregate to cooperate with the solid waste and the solid-waste-based sulphoaluminate cement and matching with a foaming process, the thermal bridge phenomenon can be effectively eliminated, and the thermal comfort of a building is improved. The obtained phase-change thermal insulation building material for the thermal bridge is excellent in mechanical property and can be applied to thermal bridge nodes of key connection parts of prefabricated buildings, and the 24-hour compressive strength is higher than 2 MPa; the 28d compressive strength is higher than 5MPa; the wind load is higher than 1kN/m < 3 >; the overall density is 500-800kg/m < 3 >.
本发明公开了一种相变轻骨料、制备方法及热桥用相变保温建材，属于建材技术领域。利用膨胀珍珠岩真空吸附相变材料，再利用水泥封装膨胀珍珠岩的开孔孔道，制得一种相变轻骨料，解决了相变储热材料的泄露问题，复合相变材料高温泄露损失低于4％，相变轻骨料无泄漏现象。利用相变轻骨料协同固废、固废基硫铝酸盐水泥，搭配发泡工艺，制备了适用于热桥环境现场浇筑的相变保温建材，可有效消除热桥现象，提高建筑的热舒适性。所得热桥用相变保温建材力学性能优异，可应用于装配式建筑关键连接部位的热桥节点，24h抗压强度高于2MPa；28d抗压强度高于5MPa；风载荷高于1kN/m3；整体密度500‑800kg/m3。
Phase-change lightweight aggregate, preparation method and phase-change thermal insulation building material for thermal bridge
The invention discloses a phase-change lightweight aggregate, a preparation method and a phase-change thermal insulation building material for a thermal bridge, and belongs to the technical field of building materials. The expanded perlite is utilized to adsorb the phase change material in vacuum, and then the cement is utilized to package open pore channels of the expanded perlite, so that the phase change lightweight aggregate is prepared, the leakage problem of the phase change heat storage material is solved, the high-temperature leakage loss of the composite phase change material is lower than 4%, and the phase change lightweight aggregate has no leakage phenomenon. The phase-change thermal insulation building material suitable for cast-in-place in a thermal bridge environment is prepared by utilizing the phase-change lightweight aggregate to cooperate with the solid waste and the solid-waste-based sulphoaluminate cement and matching with a foaming process, the thermal bridge phenomenon can be effectively eliminated, and the thermal comfort of a building is improved. The obtained phase-change thermal insulation building material for the thermal bridge is excellent in mechanical property and can be applied to thermal bridge nodes of key connection parts of prefabricated buildings, and the 24-hour compressive strength is higher than 2 MPa; the 28d compressive strength is higher than 5MPa; the wind load is higher than 1kN/m < 3 >; the overall density is 500-800kg/m < 3 >.
本发明公开了一种相变轻骨料、制备方法及热桥用相变保温建材，属于建材技术领域。利用膨胀珍珠岩真空吸附相变材料，再利用水泥封装膨胀珍珠岩的开孔孔道，制得一种相变轻骨料，解决了相变储热材料的泄露问题，复合相变材料高温泄露损失低于4％，相变轻骨料无泄漏现象。利用相变轻骨料协同固废、固废基硫铝酸盐水泥，搭配发泡工艺，制备了适用于热桥环境现场浇筑的相变保温建材，可有效消除热桥现象，提高建筑的热舒适性。所得热桥用相变保温建材力学性能优异，可应用于装配式建筑关键连接部位的热桥节点，24h抗压强度高于2MPa；28d抗压强度高于5MPa；风载荷高于1kN/m3；整体密度500‑800kg/m3。
Phase-change lightweight aggregate, preparation method and phase-change thermal insulation building material for thermal bridge
一种相变轻骨料、制备方法及热桥用相变保温建材
MENG QINGKE (Autor:in) / LI JINGWEI (Autor:in) / WANG XINYU (Autor:in) / ZHANG XIAOJUN (Autor:in) / WANG WENLONG (Autor:in) / LI YUZHONG (Autor:in) / SUN DESHAN (Autor:in) / WEN CHUANQI (Autor:in) / WANG SHI (Autor:in) / LIN HUCHENG (Autor:in)
22.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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