Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Artificial aggregate prepared by hydrothermal synthesis of iron tailings as well as preparation method and application of artificial aggregate
The invention belongs to the technical field of preparation of artificial aggregates, and discloses an artificial aggregate prepared by hydrothermal synthesis of iron tailings as well as a preparation method and application of the artificial aggregate. The artificial aggregate comprises the following raw materials in parts by mass: 70-80 parts of iron tailings, 50-60 parts of bauxite, 30-50 parts of tungsten tailings, 25-40 parts of a cementing material and 10-20 parts of an exciting agent. Through the three-stage grinding and hydrothermal synthesis process, the strength of the artificial aggregate reaches a more excellent level. The cylinder compressive strength of the obtained artificial aggregate is 23.2 to 26.7 MPa, and the bulk density of the artificial aggregate is 1200 to 1350 kg/m < 3 >; the 28d compressive strength of the concrete prepared from the artificial aggregate reaches 52.2 to 58.4 MPa, and the water absorption rate of the concrete is 4.6 to 5.1 percent.
本发明属于人造集料的制备技术领域，本发明公开了一种利用铁尾矿水热合成制备的人造集料及其制备方法与应用。本发明所述人造集料包括如下质量份数的原料：铁尾矿70～80份、铝土矿50～60份、钨尾矿30～50份、胶凝材料25～40份和激发剂10～20份。本发明通过三级研磨和水热合成的工艺，使得人造集料的强度达到了更为优异的水平。本发明所得人造集料的筒压强度为23.2～26.7MPa、堆积密度为1200～1350kg/m3；所得人造集料制备得到的混凝土的28d抗压强度达到了52.2～58.4MPa、吸水率为4.6～5.1％。
Artificial aggregate prepared by hydrothermal synthesis of iron tailings as well as preparation method and application of artificial aggregate
The invention belongs to the technical field of preparation of artificial aggregates, and discloses an artificial aggregate prepared by hydrothermal synthesis of iron tailings as well as a preparation method and application of the artificial aggregate. The artificial aggregate comprises the following raw materials in parts by mass: 70-80 parts of iron tailings, 50-60 parts of bauxite, 30-50 parts of tungsten tailings, 25-40 parts of a cementing material and 10-20 parts of an exciting agent. Through the three-stage grinding and hydrothermal synthesis process, the strength of the artificial aggregate reaches a more excellent level. The cylinder compressive strength of the obtained artificial aggregate is 23.2 to 26.7 MPa, and the bulk density of the artificial aggregate is 1200 to 1350 kg/m < 3 >; the 28d compressive strength of the concrete prepared from the artificial aggregate reaches 52.2 to 58.4 MPa, and the water absorption rate of the concrete is 4.6 to 5.1 percent.
本发明属于人造集料的制备技术领域，本发明公开了一种利用铁尾矿水热合成制备的人造集料及其制备方法与应用。本发明所述人造集料包括如下质量份数的原料：铁尾矿70～80份、铝土矿50～60份、钨尾矿30～50份、胶凝材料25～40份和激发剂10～20份。本发明通过三级研磨和水热合成的工艺，使得人造集料的强度达到了更为优异的水平。本发明所得人造集料的筒压强度为23.2～26.7MPa、堆积密度为1200～1350kg/m3；所得人造集料制备得到的混凝土的28d抗压强度达到了52.2～58.4MPa、吸水率为4.6～5.1％。
Artificial aggregate prepared by hydrothermal synthesis of iron tailings as well as preparation method and application of artificial aggregate
一种利用铁尾矿水热合成制备的人造集料及其制备方法与应用
REN XUEMEI (Autor:in) / HAO TINGYU (Autor:in) / ZHANG RUN (Autor:in)
19.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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