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A platform for research: civil engineering, architecture and urbanism
Tuff-based composite mineral admixture and preparation method thereof
The invention discloses a tuff-based composite mineral admixture. The tuff-based composite mineral admixture is prepared from the following components in parts by weight: 50 to 60 parts of calcined tuff powder, 20 to 30 parts of calcined fly ash, 5 to 10 parts of limestone powder, 3 to 5 parts of redispersible latex powder, 5 to 10 parts of desulfurized gypsum and 10 to 15 parts of nano-SiO2. According to the tuff-based composite mineral admixture, the use amount of the admixture can be effectively reduced, and meanwhile, the flowability, workability, mechanical properties, long-term durability and apparent quality of obtained concrete are effectively guaranteed; and the resource utilization of low-quality fly ash and low-activity tuff is effectively realized, and the admixture has good economic and environmental benefits and is suitable for popularization and application.
本发明公开了一种凝灰岩基复合矿物掺合料，各组分及其所占重量份数包括：煅烧凝灰岩粉50～60份，煅烧粉煤灰20～30份，石灰石粉5～10份，可再分散性乳胶粉3～5份，脱硫石膏5～10份，纳米SiO2 10～15份。本发明所得凝灰岩基复合矿物掺合料可有效降低外加剂的使用量，同时有效保证所得混凝土的流动性、工作性、力学性能、长期耐久性能以及混凝土的表观质量；有效实现低品质粉煤灰及低活性凝灰岩的资源化利用，具有良好的经济和环境效益，适合推广应用。
Tuff-based composite mineral admixture and preparation method thereof
The invention discloses a tuff-based composite mineral admixture. The tuff-based composite mineral admixture is prepared from the following components in parts by weight: 50 to 60 parts of calcined tuff powder, 20 to 30 parts of calcined fly ash, 5 to 10 parts of limestone powder, 3 to 5 parts of redispersible latex powder, 5 to 10 parts of desulfurized gypsum and 10 to 15 parts of nano-SiO2. According to the tuff-based composite mineral admixture, the use amount of the admixture can be effectively reduced, and meanwhile, the flowability, workability, mechanical properties, long-term durability and apparent quality of obtained concrete are effectively guaranteed; and the resource utilization of low-quality fly ash and low-activity tuff is effectively realized, and the admixture has good economic and environmental benefits and is suitable for popularization and application.
本发明公开了一种凝灰岩基复合矿物掺合料，各组分及其所占重量份数包括：煅烧凝灰岩粉50～60份，煅烧粉煤灰20～30份，石灰石粉5～10份，可再分散性乳胶粉3～5份，脱硫石膏5～10份，纳米SiO2 10～15份。本发明所得凝灰岩基复合矿物掺合料可有效降低外加剂的使用量，同时有效保证所得混凝土的流动性、工作性、力学性能、长期耐久性能以及混凝土的表观质量；有效实现低品质粉煤灰及低活性凝灰岩的资源化利用，具有良好的经济和环境效益，适合推广应用。
Tuff-based composite mineral admixture and preparation method thereof
一种凝灰岩基复合矿物掺合料及其制备方法
MA XUDONG (author) / ZHANG PING (author) / YUE CAIHONG (author) / WANG JUN (author) / TIAN CHUNFENG (author) / GU LONGLONG (author) / HAN SHIJIE (author) / ZHENG HAIKANG (author)
2021-12-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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