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Red mud-phosphogypsum composite cementing material and preparation method thereof
The invention belongs to the technical field of cementing materials and preparation thereof, and provides a red mud-ardealite composite cementing material and a preparation method thereof, and the preparation method comprises the following steps: 1, mixing red mud with an alkali activator, and aging to obtain activated red mud; 2, mixing ardealite with a salt activator, and aging to obtain activated ardealite capable of improving the hardness of the activated red mud mixture; 3, uniformly mixing the activated red mud mixture obtained in the step 1 with the activated phosphogypsum mixture obtained in the step 2 to prepare a red mud-phosphogypsum composite cementing material; the composite cementing material is obtained by promoting the activation of the ardealite and the red mud through the salt activator and the alkali activator, the comprehensive utilization channel of the ardealite and the red mud is expanded, a low-cost and simple activation process is developed, and the composite cementing material is easy to operate, low in cost and clean and environment-friendly in production process.
本发明属于胶凝材料及其制备技术领域，提供了一种赤泥‑磷石膏的复合胶凝材料及制备方法，包括如下步骤：步骤1、将赤泥与碱激发剂混合进行陈化，得到活化赤泥；步骤2、将磷石膏与盐类激发剂混合进行陈化，得到可以提高活化赤泥混合物硬度的活化磷石膏；步骤3、将步骤1得到的活化赤泥混合物与步骤2中到的活化磷石膏混合物进行混合均匀，制备赤泥‑磷石膏的复合胶凝材料；该复合胶凝材料通过盐类激发剂和碱激发剂促进磷石膏和赤泥的活化作用获得，拓展磷石膏与赤泥综合利用渠道，开发低成本而简单的活化工艺，且容易操作、成本低廉、生产过程清洁、环保。
Red mud-phosphogypsum composite cementing material and preparation method thereof
The invention belongs to the technical field of cementing materials and preparation thereof, and provides a red mud-ardealite composite cementing material and a preparation method thereof, and the preparation method comprises the following steps: 1, mixing red mud with an alkali activator, and aging to obtain activated red mud; 2, mixing ardealite with a salt activator, and aging to obtain activated ardealite capable of improving the hardness of the activated red mud mixture; 3, uniformly mixing the activated red mud mixture obtained in the step 1 with the activated phosphogypsum mixture obtained in the step 2 to prepare a red mud-phosphogypsum composite cementing material; the composite cementing material is obtained by promoting the activation of the ardealite and the red mud through the salt activator and the alkali activator, the comprehensive utilization channel of the ardealite and the red mud is expanded, a low-cost and simple activation process is developed, and the composite cementing material is easy to operate, low in cost and clean and environment-friendly in production process.
本发明属于胶凝材料及其制备技术领域，提供了一种赤泥‑磷石膏的复合胶凝材料及制备方法，包括如下步骤：步骤1、将赤泥与碱激发剂混合进行陈化，得到活化赤泥；步骤2、将磷石膏与盐类激发剂混合进行陈化，得到可以提高活化赤泥混合物硬度的活化磷石膏；步骤3、将步骤1得到的活化赤泥混合物与步骤2中到的活化磷石膏混合物进行混合均匀，制备赤泥‑磷石膏的复合胶凝材料；该复合胶凝材料通过盐类激发剂和碱激发剂促进磷石膏和赤泥的活化作用获得，拓展磷石膏与赤泥综合利用渠道，开发低成本而简单的活化工艺，且容易操作、成本低廉、生产过程清洁、环保。
Red mud-phosphogypsum composite cementing material and preparation method thereof
一种赤泥-磷石膏的复合胶凝材料及制备方法
QIU WEI (author) / TANG ANJIANG (author) / FU YUANXIANG (author) / MA LIANGANG (author) / SHU QUNWEI (author)
2021-10-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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