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A platform for research: civil engineering, architecture and urbanism
Preparation process of sulfur-containing tailing baking-free brick
The invention discloses a preparation process of a sulfur-containing tailing baking-free brick, which comprises the following steps: (1) mixing ethanol and water to prepare a mixed solution, and then adding Portland cement powder, gypsum powder and sodium alginate powder into the mixed solution to form slurry; and coating the surface of the sulfur-containing tailings with the slurry, and then naturally curing to obtain the sulfur-containing tailings aggregate. And (2) uniformly mixing fly ash, lithium slag, the sulfur-containing tailing aggregate, cement, a water reducing agent and water, carrying out compression molding on the obtained mixture, and curing to obtain the sulfur-containing tailing baking-free brick. By means of the process, the chemical stability of the sulfur-containing tailings can be effectively improved, and the problem that the sulfur-containing tailings easily cause degradation of the mechanical property of the baking-free brick is solved.
本发明公开一种含硫尾砂免烧砖的制备工艺，包括步骤：(1)将乙醇和水混合配成拌和液，然后在其中加入硅酸盐水泥粉、石膏粉、海藻酸钠粉形成浆料。将所述浆料包覆到含硫尾砂表面，然后自然养护，完成后得到含硫尾砂骨料。(2)将粉煤灰、锂渣、所述含硫尾砂骨料、水泥、减水剂与水拌和均匀，然后将得到的混合料压制成型后进行养护，即得含硫尾砂免烧砖。本发明的工艺能够有效提高含硫尾砂的化学稳定性，缓解了含硫尾砂容易造成免烧砖力学性能劣化的问题。
Preparation process of sulfur-containing tailing baking-free brick
The invention discloses a preparation process of a sulfur-containing tailing baking-free brick, which comprises the following steps: (1) mixing ethanol and water to prepare a mixed solution, and then adding Portland cement powder, gypsum powder and sodium alginate powder into the mixed solution to form slurry; and coating the surface of the sulfur-containing tailings with the slurry, and then naturally curing to obtain the sulfur-containing tailings aggregate. And (2) uniformly mixing fly ash, lithium slag, the sulfur-containing tailing aggregate, cement, a water reducing agent and water, carrying out compression molding on the obtained mixture, and curing to obtain the sulfur-containing tailing baking-free brick. By means of the process, the chemical stability of the sulfur-containing tailings can be effectively improved, and the problem that the sulfur-containing tailings easily cause degradation of the mechanical property of the baking-free brick is solved.
本发明公开一种含硫尾砂免烧砖的制备工艺，包括步骤：(1)将乙醇和水混合配成拌和液，然后在其中加入硅酸盐水泥粉、石膏粉、海藻酸钠粉形成浆料。将所述浆料包覆到含硫尾砂表面，然后自然养护，完成后得到含硫尾砂骨料。(2)将粉煤灰、锂渣、所述含硫尾砂骨料、水泥、减水剂与水拌和均匀，然后将得到的混合料压制成型后进行养护，即得含硫尾砂免烧砖。本发明的工艺能够有效提高含硫尾砂的化学稳定性，缓解了含硫尾砂容易造成免烧砖力学性能劣化的问题。
Preparation process of sulfur-containing tailing baking-free brick
一种含硫尾砂免烧砖的制备工艺
DING DAN (author) / ZHANG ZHIGUO (author) / SHAN SHIFENG (author) / LUO CHUANHUA (author) / CHEN PEIYUAN (author) / ZHANG SHIWEN (author) / YU MIN (author) / ZHENG YONGHONG (author)
2024-03-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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