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A platform for research: civil engineering, architecture and urbanism
Preparation method of slag-fly ash-based geopolymer composite cementing material
The invention discloses a preparation method of a slag-fly ash-based geopolymer composite cementing material. The preparation method comprises the following steps: step 1, finely grinding slag with the iron content of 3-6% after magnetic separation and silica; 2, sodium silicate, sodium hydroxide solids and water are prepared into an alkali activator solution with the modulus of 1.5-1.7, and the alkali activator solution is sealed and stands; 3, proportioning the ground slag, fly ash, silicon powder, aluminum oxide, standard sand, clinker and polypropylene fiber according to the mass ratio of 10: 20: (19-51): (14-26): 40: 10: 2.2, and uniformly mixing and stirring with an alkali activator and water to prepare slurry; step 4, injecting the slurry into a mortar test mold, then placing the mortar test mold on a cement mortar compaction table to be vibrated flat, and forming to obtain a sample; 5, the sample is subjected to curing in a curing box and then subjected to water bath curing. According to the invention, high mixing amount of slag and fly ash is realized, the preparation process is simple, the production cost is low, the heavy metal curing effect is good, and the problem of industrial waste residue treatment is solved.
本发明公开了一种矿渣‑粉煤灰基地质聚合物复合胶凝材料的制备方法，包括以下步骤：步骤一、把磁选后含铁量3～6％的矿渣、硅石磨细；步骤二、硅酸钠、氢氧化钠固体、水配置成模数1.5～1.7的碱激发剂溶液，密封静置；步骤三、将磨细后的矿渣、粉煤灰、硅粉、三氧化二铝、标准砂、熟料、聚丙烯纤维按质量比10:20:19～51:14～26:40:10:2.2配比，与碱激发剂、水混合搅拌均匀，制成浆体；步骤四、注入浆体至胶砂试模内，再放置于水泥胶砂振实台振平，成形得到试样；步骤五、试样进行养护箱养护，再水浴养护。本发明实现了矿渣、粉煤灰的高掺量，同时制备工艺简单，生产成本低，对重金属固化效果好，解决了工业废渣处理问题。
Preparation method of slag-fly ash-based geopolymer composite cementing material
The invention discloses a preparation method of a slag-fly ash-based geopolymer composite cementing material. The preparation method comprises the following steps: step 1, finely grinding slag with the iron content of 3-6% after magnetic separation and silica; 2, sodium silicate, sodium hydroxide solids and water are prepared into an alkali activator solution with the modulus of 1.5-1.7, and the alkali activator solution is sealed and stands; 3, proportioning the ground slag, fly ash, silicon powder, aluminum oxide, standard sand, clinker and polypropylene fiber according to the mass ratio of 10: 20: (19-51): (14-26): 40: 10: 2.2, and uniformly mixing and stirring with an alkali activator and water to prepare slurry; step 4, injecting the slurry into a mortar test mold, then placing the mortar test mold on a cement mortar compaction table to be vibrated flat, and forming to obtain a sample; 5, the sample is subjected to curing in a curing box and then subjected to water bath curing. According to the invention, high mixing amount of slag and fly ash is realized, the preparation process is simple, the production cost is low, the heavy metal curing effect is good, and the problem of industrial waste residue treatment is solved.
本发明公开了一种矿渣‑粉煤灰基地质聚合物复合胶凝材料的制备方法，包括以下步骤：步骤一、把磁选后含铁量3～6％的矿渣、硅石磨细；步骤二、硅酸钠、氢氧化钠固体、水配置成模数1.5～1.7的碱激发剂溶液，密封静置；步骤三、将磨细后的矿渣、粉煤灰、硅粉、三氧化二铝、标准砂、熟料、聚丙烯纤维按质量比10:20:19～51:14～26:40:10:2.2配比，与碱激发剂、水混合搅拌均匀，制成浆体；步骤四、注入浆体至胶砂试模内，再放置于水泥胶砂振实台振平，成形得到试样；步骤五、试样进行养护箱养护，再水浴养护。本发明实现了矿渣、粉煤灰的高掺量，同时制备工艺简单，生产成本低，对重金属固化效果好，解决了工业废渣处理问题。
Preparation method of slag-fly ash-based geopolymer composite cementing material
一种矿渣-粉煤灰基地质聚合物复合胶凝材料的制备方法
BAI LITAI (author) / FAN XINGMU (author) / ZHANG PENG (author) / MA CHAO (author) / WANG BIN (author) / MA LU (author) / GAO YONG (author)
2023-09-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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