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A platform for research: civil engineering, architecture and urbanism
Stone powder-based mineral admixture as well as preparation method and application thereof
The invention belongs to the technical field of building material preparation, and particularly relates to a stone powder-based mineral admixture and a preparation method and application thereof, and the method comprises the following steps: sequentially carrying out washing soil removal, crushing treatment and filter pressing treatment on tailing rock ballast to obtain rock ballast particles; mixing the rock ballast particles with a dissolved acid solution, and carrying out first ball milling to obtain first activated stone powder; mixing the first activated fossil powder with an aluminum-containing active mineral, and carrying out second ball milling to obtain second activated fossil powder; mixing the second activated stone powder with a hydrophilic material, and carrying out third ball milling to obtain hydrophilic stone powder; the hydrophilic stone powder is dried, sorted and mixed in proportion, and the stone powder-based mineral admixture is obtained. The average particle size of the stone powder-based mineral admixture is 300-400 meshes, the hydrophilic coefficient is larger than 1.0, the 28-day activity index is larger than 70%, and the water content is smaller than 1%. The stone powder-based mineral admixture is used for preparing concrete, and the mechanical property of the concrete can be remarkably improved.
本发明属于建筑材料制备技术领域，特别涉及一种石粉基矿物掺合料及其制备方法、应用，所述方法包括以下步骤：对尾料石渣依次进行水洗除土、破碎处理以及压滤处理，得到石渣颗粒；将石渣颗粒与溶解酸液混合进行第一球磨，得到第一活化石粉；将第一活化石粉与含铝活性矿物混合进行第二球磨，得到第二活化石粉；将第二活化石粉与亲水材料混合进行第三球磨，得到亲水石粉；对亲水石粉进行烘干、分选和按比例混合，得到石粉基矿物掺合料。石粉基矿物掺合料的平均粒径为300－400目、亲水系数＞1.0、28天活性指数＞70％以及含水率＜1％。该石粉基矿物掺合料用于制备混凝土，可显著提高其力学性能。
Stone powder-based mineral admixture as well as preparation method and application thereof
The invention belongs to the technical field of building material preparation, and particularly relates to a stone powder-based mineral admixture and a preparation method and application thereof, and the method comprises the following steps: sequentially carrying out washing soil removal, crushing treatment and filter pressing treatment on tailing rock ballast to obtain rock ballast particles; mixing the rock ballast particles with a dissolved acid solution, and carrying out first ball milling to obtain first activated stone powder; mixing the first activated fossil powder with an aluminum-containing active mineral, and carrying out second ball milling to obtain second activated fossil powder; mixing the second activated stone powder with a hydrophilic material, and carrying out third ball milling to obtain hydrophilic stone powder; the hydrophilic stone powder is dried, sorted and mixed in proportion, and the stone powder-based mineral admixture is obtained. The average particle size of the stone powder-based mineral admixture is 300-400 meshes, the hydrophilic coefficient is larger than 1.0, the 28-day activity index is larger than 70%, and the water content is smaller than 1%. The stone powder-based mineral admixture is used for preparing concrete, and the mechanical property of the concrete can be remarkably improved.
本发明属于建筑材料制备技术领域，特别涉及一种石粉基矿物掺合料及其制备方法、应用，所述方法包括以下步骤：对尾料石渣依次进行水洗除土、破碎处理以及压滤处理，得到石渣颗粒；将石渣颗粒与溶解酸液混合进行第一球磨，得到第一活化石粉；将第一活化石粉与含铝活性矿物混合进行第二球磨，得到第二活化石粉；将第二活化石粉与亲水材料混合进行第三球磨，得到亲水石粉；对亲水石粉进行烘干、分选和按比例混合，得到石粉基矿物掺合料。石粉基矿物掺合料的平均粒径为300－400目、亲水系数＞1.0、28天活性指数＞70％以及含水率＜1％。该石粉基矿物掺合料用于制备混凝土，可显著提高其力学性能。
Stone powder-based mineral admixture as well as preparation method and application thereof
一种石粉基矿物掺合料及其制备方法、应用
FAN DONGDONG (author) / LIANG CHAO (author) / PENG JIANWEI (author) / ZHANG GUOHUI (author) / HUANG HAI (author) / WANG ZHIYONG (author) / CHEN YITAO (author) / WU CHENGHAO (author) / LU JINGHAI (author) / KONG YUN (author)
2024-03-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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