Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Backfill material composition, backfill material as well as preparation method and application of backfill material
The invention relates to the technical field of building materials, and discloses a backfill material composition, a backfill material and a preparation method and application thereof. The backfill material composition comprises a cementing material, coal gangue and water, and the cementing material comprises first fly ash, second fly ash and Portland cement; wherein the first fly ash and the second fly ash respectively contain CaO, and the content of CaO in the first fly ash is smaller than that in the second fly ash. According to the backfill material composition, the cementing material and the coal gangue are matched, the cementing material contains two kinds of fly ash with different CaO contents, the two kinds of fly ash have a synergistic effect, and the two kinds of fly ash and the coal gangue have good compatibility, so that the prepared backfill material has good workability and compressive strength, and the material cost can be remarkably reduced.
本发明涉及建筑材料技术领域，公开了回填材料组合物、回填材料及其制备方法和应用。该回填材料组合物包括：胶凝材料、煤矸石和水，其中，所述胶凝材料包括第一粉煤灰、第二粉煤灰和硅酸盐水泥；其中，所述第一粉煤灰和所述第二粉煤灰中各自含有CaO，所述第一粉煤灰中CaO的含量小于所述第二粉煤灰中CaO的含量。本发明的回填材料组合物通过将胶凝材料和煤矸石配合，且胶凝材料中含有不同CaO含量的两种粉煤灰，两者之间协同作用，并与煤矸石具有较好的相容性，制得的回填材料具有良好的和易性和抗压强度，还可显著降低材料成本。
Backfill material composition, backfill material as well as preparation method and application of backfill material
The invention relates to the technical field of building materials, and discloses a backfill material composition, a backfill material and a preparation method and application thereof. The backfill material composition comprises a cementing material, coal gangue and water, and the cementing material comprises first fly ash, second fly ash and Portland cement; wherein the first fly ash and the second fly ash respectively contain CaO, and the content of CaO in the first fly ash is smaller than that in the second fly ash. According to the backfill material composition, the cementing material and the coal gangue are matched, the cementing material contains two kinds of fly ash with different CaO contents, the two kinds of fly ash have a synergistic effect, and the two kinds of fly ash and the coal gangue have good compatibility, so that the prepared backfill material has good workability and compressive strength, and the material cost can be remarkably reduced.
本发明涉及建筑材料技术领域，公开了回填材料组合物、回填材料及其制备方法和应用。该回填材料组合物包括：胶凝材料、煤矸石和水，其中，所述胶凝材料包括第一粉煤灰、第二粉煤灰和硅酸盐水泥；其中，所述第一粉煤灰和所述第二粉煤灰中各自含有CaO，所述第一粉煤灰中CaO的含量小于所述第二粉煤灰中CaO的含量。本发明的回填材料组合物通过将胶凝材料和煤矸石配合，且胶凝材料中含有不同CaO含量的两种粉煤灰，两者之间协同作用，并与煤矸石具有较好的相容性，制得的回填材料具有良好的和易性和抗压强度，还可显著降低材料成本。
Backfill material composition, backfill material as well as preparation method and application of backfill material
回填材料组合物、回填材料及其制备方法和应用
ZUO RANFANG (Autor:in) / ZHANG DONG (Autor:in) / DONG YANG (Autor:in) / ZHUO JINDE (Autor:in)
23.12.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
BACKFILL MATERIAL, BACKFILL METHOD, AND BACKFILL MATERIAL MANUFACTURING METHOD
| Europäisches Patentamt | 2020