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Lithium slag-based alkali-activated cementing material as well as preparation method and application thereof
The invention discloses a lithium slag-based alkali-activated cementing material and a preparation method and application thereof, the cementing material comprises the following components in parts by weight: 30-55 parts of lithium slag, 0-20 parts of lepidolite mineral separation tail mud, 20-40 parts of slag, 0-20 parts of fly ash, 1-5 parts of silica fume, 5-12 parts of an alkali activator, 0.5-2 parts of a water reducer and 0.1-1 part of an organic admixture, the alkali activator is composed of 3-6 parts of hydroxide and 3-6 parts of silicate. The lithium slag-based alkali-activated cementing material disclosed by the invention can keep high compressive strength and breaking strength on the premise of short setting time, and meanwhile, the leaching value of heavy metals is low, so that the problems that the utilization rate of lithium slag wastes is not high and the leaching of heavy metal ions in solidified lithium slag exceeds the standard are solved; the environmental burden is reduced while resource utilization of the industrial solid waste is realized.
本发明公开了一种锂渣基碱激发胶凝材料及其制备方法和应用，所述胶凝材料，以重量份计，包括如下组分：锂渣30‑55份，锂云母选矿尾泥0‑20份，矿渣20‑40份，粉煤灰0‑20份，硅灰1‑5份，碱激发剂5‑12份，减水剂0.5‑2份，有机外加剂0.1‑1份，其中，所述碱激发剂由3‑6份氢氧化物及3‑6份硅酸盐组成。本发明的锂渣基碱激发胶凝材料在凝结时间短的前提下保持能够保持高抗压及抗折强度，同时重金属浸出值低，解决了锂渣废弃物的利用率不高以及固化锂渣中的重金属离子浸出超标准的问题，实现了工业固废的资源化利用的同时降低了环境负担。
Lithium slag-based alkali-activated cementing material as well as preparation method and application thereof
The invention discloses a lithium slag-based alkali-activated cementing material and a preparation method and application thereof, the cementing material comprises the following components in parts by weight: 30-55 parts of lithium slag, 0-20 parts of lepidolite mineral separation tail mud, 20-40 parts of slag, 0-20 parts of fly ash, 1-5 parts of silica fume, 5-12 parts of an alkali activator, 0.5-2 parts of a water reducer and 0.1-1 part of an organic admixture, the alkali activator is composed of 3-6 parts of hydroxide and 3-6 parts of silicate. The lithium slag-based alkali-activated cementing material disclosed by the invention can keep high compressive strength and breaking strength on the premise of short setting time, and meanwhile, the leaching value of heavy metals is low, so that the problems that the utilization rate of lithium slag wastes is not high and the leaching of heavy metal ions in solidified lithium slag exceeds the standard are solved; the environmental burden is reduced while resource utilization of the industrial solid waste is realized.
本发明公开了一种锂渣基碱激发胶凝材料及其制备方法和应用，所述胶凝材料，以重量份计，包括如下组分：锂渣30‑55份，锂云母选矿尾泥0‑20份，矿渣20‑40份，粉煤灰0‑20份，硅灰1‑5份，碱激发剂5‑12份，减水剂0.5‑2份，有机外加剂0.1‑1份，其中，所述碱激发剂由3‑6份氢氧化物及3‑6份硅酸盐组成。本发明的锂渣基碱激发胶凝材料在凝结时间短的前提下保持能够保持高抗压及抗折强度，同时重金属浸出值低，解决了锂渣废弃物的利用率不高以及固化锂渣中的重金属离子浸出超标准的问题，实现了工业固废的资源化利用的同时降低了环境负担。
Lithium slag-based alkali-activated cementing material as well as preparation method and application thereof
一种锂渣基碱激发胶凝材料及其制备方法和应用
ZHANG ZUOTAI (author) / PAN RONGXIANG (author) / YAN FENG (author) / XU JIYUN (author) / WU HAO (author) / LI ZHOU (author)
2024-10-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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