Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cemented filling material taking red sand as aggregate and preparation method of cemented filling material
The embodiment of the invention provides a cemented filling material taking red sand as aggregate and a preparation method of the cemented filling material, and relates to the field of cemented filling mining of coal mines. Comprising the following steps: determining raw materials for preparing the cemented filling material; the raw materials comprise red sand, fly ash, cement, mine water and additives. Analyzing the basic performance of the solid raw material; the mass ratio of a solid raw material base group is determined, and the ratio of the red sand to the fly ash to the cement is 63: 24: 13; sequentially analyzing the influence of the mass concentration, the gel-sand ratio and the additive on the performance of the cemented filling material, so as to determine the mass concentration, the optimal gel-sand ratio and the optimal additive concentration. The cemented filling material comprises red sand, fly ash, cement, mine water and an additive, the mass ratio of a solid base group composed of the red sand, the fly ash and the cement to the mine water is 76%-80%, the mass ratio of a solid base group composed of the cement and the fly ash to the red sand is 0.4-0.8, and the concentration of the additive is 3-15 g/L. The method is suitable for mining scenes.
本发明实施例提供一种以红沙为骨料的胶结充填材料及其制备方法，涉及煤矿胶结充填开采领域。包括步骤：确定制备胶结充填材料的原材料；原材料包括：红沙、粉煤灰、水泥、矿井水以及添加剂；分析固体原材料的基础性能；确定固体原材料基组质量配比，使红沙：粉煤灰：水泥为63：24：13；依次分析质量浓度、胶沙比及添加剂分别对胶结充填材料性能的影响，以确定出质量浓度、最佳胶沙比和最佳添加剂浓度。胶结充填材料包含：红沙、粉煤灰、水泥、矿井水及添加剂，红沙、粉煤灰和水泥组成的固体基组与矿井水的质量配比为76％～80％，水泥与粉煤灰组成的固体基组与红沙的质量配比为0.4～0.8，添加剂的浓度为3～15g/L。本发明适用于采矿场景中。
Cemented filling material taking red sand as aggregate and preparation method of cemented filling material
The embodiment of the invention provides a cemented filling material taking red sand as aggregate and a preparation method of the cemented filling material, and relates to the field of cemented filling mining of coal mines. Comprising the following steps: determining raw materials for preparing the cemented filling material; the raw materials comprise red sand, fly ash, cement, mine water and additives. Analyzing the basic performance of the solid raw material; the mass ratio of a solid raw material base group is determined, and the ratio of the red sand to the fly ash to the cement is 63: 24: 13; sequentially analyzing the influence of the mass concentration, the gel-sand ratio and the additive on the performance of the cemented filling material, so as to determine the mass concentration, the optimal gel-sand ratio and the optimal additive concentration. The cemented filling material comprises red sand, fly ash, cement, mine water and an additive, the mass ratio of a solid base group composed of the red sand, the fly ash and the cement to the mine water is 76%-80%, the mass ratio of a solid base group composed of the cement and the fly ash to the red sand is 0.4-0.8, and the concentration of the additive is 3-15 g/L. The method is suitable for mining scenes.
本发明实施例提供一种以红沙为骨料的胶结充填材料及其制备方法，涉及煤矿胶结充填开采领域。包括步骤：确定制备胶结充填材料的原材料；原材料包括：红沙、粉煤灰、水泥、矿井水以及添加剂；分析固体原材料的基础性能；确定固体原材料基组质量配比，使红沙：粉煤灰：水泥为63：24：13；依次分析质量浓度、胶沙比及添加剂分别对胶结充填材料性能的影响，以确定出质量浓度、最佳胶沙比和最佳添加剂浓度。胶结充填材料包含：红沙、粉煤灰、水泥、矿井水及添加剂，红沙、粉煤灰和水泥组成的固体基组与矿井水的质量配比为76％～80％，水泥与粉煤灰组成的固体基组与红沙的质量配比为0.4～0.8，添加剂的浓度为3～15g/L。本发明适用于采矿场景中。
Cemented filling material taking red sand as aggregate and preparation method of cemented filling material
一种以红沙为骨料的胶结充填材料及其制备方法
LI YONGLIANG (Autor:in) / WANG SHUSHUAI (Autor:in) / YANG RENSHU (Autor:in) / LU BIN (Autor:in) / WANG ZHONGQING (Autor:in)
23.12.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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