Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lithium slag-based cementing material and preparation method thereof
The invention provides a lithium slag-based cementing material and a preparation method thereof. The preparation method of the lithium slag-based cementing material comprises the following steps: carrying out water washing dealkalization treatment on lithium slag; carrying out chemical excitation on the lithium slag subjected to water washing and dealkalization, and drying; grinding and activating the dried lithium slag to obtain pretreated lithium slag; mixing the pretreated lithium slag, industrial solid waste, cement clinker and an exciting agent in proportion to form a lithium slag-based cementing material; wherein the content of the pretreated lithium slag is [30%, 60%] in percentage by mass. The problems of low hydration activity, high alkali content, large component fluctuation and the like of the lithium slag are solved through pretreatment of water washing dealkalization, chemical excitation and mechanical activation of the lithium slag, and recycling, high-performance and harmless utilization of the large-mixing-amount lithium slag in the process of preparing a cementing material is achieved. And moreover, the lithium slag-based cementing material is used for replacing Portland cement, so that the CO2 emission is reduced while the lithium slag solid waste is recycled.
本申请提供一种锂渣基胶凝材料及其制备方法。所述锂渣基胶凝材料的制备方法包括将对锂渣进行水洗脱碱处理；对水洗脱碱后的锂渣进行化学激发并干燥；干燥后的锂渣进行粉磨活化以得到预处理锂渣；将预处理锂渣、工业固废、水泥熟料和激发剂按比例混合配料，形成锂渣基胶凝材料；其中，所述预处理锂渣按质量百分比计含量为[30％，60％]。通过对锂渣水洗脱碱、化学激发、机械活化进行预处理，来改善锂渣水化活性低，碱含量高及成分波动大等问题，实现大掺量锂渣在制备胶凝材料的过程中资源化、高性能化及无害化利用。并且，利用锂渣基胶凝材料替代硅酸盐水泥，实现锂渣固废再利用的同时，减少CO2排放量。
Lithium slag-based cementing material and preparation method thereof
The invention provides a lithium slag-based cementing material and a preparation method thereof. The preparation method of the lithium slag-based cementing material comprises the following steps: carrying out water washing dealkalization treatment on lithium slag; carrying out chemical excitation on the lithium slag subjected to water washing and dealkalization, and drying; grinding and activating the dried lithium slag to obtain pretreated lithium slag; mixing the pretreated lithium slag, industrial solid waste, cement clinker and an exciting agent in proportion to form a lithium slag-based cementing material; wherein the content of the pretreated lithium slag is [30%, 60%] in percentage by mass. The problems of low hydration activity, high alkali content, large component fluctuation and the like of the lithium slag are solved through pretreatment of water washing dealkalization, chemical excitation and mechanical activation of the lithium slag, and recycling, high-performance and harmless utilization of the large-mixing-amount lithium slag in the process of preparing a cementing material is achieved. And moreover, the lithium slag-based cementing material is used for replacing Portland cement, so that the CO2 emission is reduced while the lithium slag solid waste is recycled.
本申请提供一种锂渣基胶凝材料及其制备方法。所述锂渣基胶凝材料的制备方法包括将对锂渣进行水洗脱碱处理；对水洗脱碱后的锂渣进行化学激发并干燥；干燥后的锂渣进行粉磨活化以得到预处理锂渣；将预处理锂渣、工业固废、水泥熟料和激发剂按比例混合配料，形成锂渣基胶凝材料；其中，所述预处理锂渣按质量百分比计含量为[30％，60％]。通过对锂渣水洗脱碱、化学激发、机械活化进行预处理，来改善锂渣水化活性低，碱含量高及成分波动大等问题，实现大掺量锂渣在制备胶凝材料的过程中资源化、高性能化及无害化利用。并且，利用锂渣基胶凝材料替代硅酸盐水泥，实现锂渣固废再利用的同时，减少CO2排放量。
Lithium slag-based cementing material and preparation method thereof
一种锂渣基胶凝材料及其制备方法
WEI DONGDONG (Autor:in) / CHEN KAI (Autor:in) / LYU TING (Autor:in) / YAO LI (Autor:in) / SHUAI YONG (Autor:in) / PAN RUI (Autor:in) / LIAO XIN (Autor:in) / HUANG XIAOYU (Autor:in) / YANG GUANG (Autor:in) / TAO XUELIANG (Autor:in)
13.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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