Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lightweight heat-insulating high-strength foam concrete as well as preparation method and application thereof
The invention belongs to the technical field of comprehensive utilization of phosphate tailing resources. The invention provides lightweight thermal-insulation high-strength foam concrete as well as a preparation method and application thereof. The lightweight thermal-insulation high-strength foam concrete is prepared from the following raw materials in parts by mass: 30-50 parts of phosphate tailings, 50-70 parts of steel slag, 0.5-1 part of a foam stabilizer, 3-5.1 parts of a foaming agent and 30-51 parts of water. The dry density of the lightweight thermal-insulation high-strength foam concrete provided by the invention is 0.6-0.9 g/cm < 3 >, the compressive strength is 12-15MPa, and the heat conductivity coefficient is 0.08-0.12 W/(m.K). After the methyl cellulose is dissolved, a layer of wet flexible elastic film is formed between solid-phase particles and gas-phase bubbles, so that the liquid film strength is increased, the foam loss phenomenon is reduced, a lubricating effect is also achieved in the mixing process, the flowability of slurry is effectively improved, the pores of the foam concrete are more uniform, and the foam concrete is more uniform. The compressive strength performance and the thermal insulation performance of the foam concrete are enhanced.
本发明属于磷尾矿资源综合利用技术领域。本发明提供了一种轻质隔热高强泡沫混凝土及其制备方法和应用，由包含下列质量份数的原料制备得到：磷尾矿30～50份、钢渣50～70份、稳泡剂0.5～1份、发泡剂3～5.1份、水30～51份。本发明提供的轻质隔热高强泡沫混凝土干密度为0.6～0.9g/cm3，抗压强度为12～15MPa，导热系数为0.08～0.12W/(m·K)。甲基纤维素溶解后在固相颗粒和气相气泡之间形成了一层湿润的柔弹性薄膜，增加了液膜强度，减少泡沫流失现象，在拌和过程中还起到润滑效果，有效地改进了浆体的流动性，使泡沫混凝土的孔隙更加均匀，增强了泡沫混凝土的抗压强度性能和保温隔热性能。
Lightweight heat-insulating high-strength foam concrete as well as preparation method and application thereof
The invention belongs to the technical field of comprehensive utilization of phosphate tailing resources. The invention provides lightweight thermal-insulation high-strength foam concrete as well as a preparation method and application thereof. The lightweight thermal-insulation high-strength foam concrete is prepared from the following raw materials in parts by mass: 30-50 parts of phosphate tailings, 50-70 parts of steel slag, 0.5-1 part of a foam stabilizer, 3-5.1 parts of a foaming agent and 30-51 parts of water. The dry density of the lightweight thermal-insulation high-strength foam concrete provided by the invention is 0.6-0.9 g/cm < 3 >, the compressive strength is 12-15MPa, and the heat conductivity coefficient is 0.08-0.12 W/(m.K). After the methyl cellulose is dissolved, a layer of wet flexible elastic film is formed between solid-phase particles and gas-phase bubbles, so that the liquid film strength is increased, the foam loss phenomenon is reduced, a lubricating effect is also achieved in the mixing process, the flowability of slurry is effectively improved, the pores of the foam concrete are more uniform, and the foam concrete is more uniform. The compressive strength performance and the thermal insulation performance of the foam concrete are enhanced.
本发明属于磷尾矿资源综合利用技术领域。本发明提供了一种轻质隔热高强泡沫混凝土及其制备方法和应用，由包含下列质量份数的原料制备得到：磷尾矿30～50份、钢渣50～70份、稳泡剂0.5～1份、发泡剂3～5.1份、水30～51份。本发明提供的轻质隔热高强泡沫混凝土干密度为0.6～0.9g/cm3，抗压强度为12～15MPa，导热系数为0.08～0.12W/(m·K)。甲基纤维素溶解后在固相颗粒和气相气泡之间形成了一层湿润的柔弹性薄膜，增加了液膜强度，减少泡沫流失现象，在拌和过程中还起到润滑效果，有效地改进了浆体的流动性，使泡沫混凝土的孔隙更加均匀，增强了泡沫混凝土的抗压强度性能和保温隔热性能。
Lightweight heat-insulating high-strength foam concrete as well as preparation method and application thereof
一种轻质隔热高强泡沫混凝土及其制备方法和应用
HU NANYAN (Autor:in) / LIU YUJIE (Autor:in) / YE YICHENG (Autor:in) / JIA JINPENG (Autor:in) / LIU HAIPENG (Autor:in) / CHEN DUNXI (Autor:in) / LYU YOU (Autor:in) / LUO BINYU (Autor:in)
27.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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