Alkali-activated cementing material doped with high-silicon iron tailings and red mud and preparation method of alkali-activated cementing material

Abstract

The invention belongs to the field of alkali-activated inorganic nonmetal cementing materials, and particularly relates to an alkali-activated cementing material doped with high-silicon iron tailings and red mud and a preparation method of the alkali-activated cementing material. The material comprises the following raw materials: 30 to 50 parts of high-silicon iron tailings; 15 to 20 parts of red mud; 20 to 35 parts of coal gangue; 10 to 15 parts of alkaline residues; and 1-5 parts of an alkaline activator. The preparation method comprises the following steps: adding the high-silicon iron tailings, the red mud and the coal gangue into a stirrer, performing uniform stirring, dissolving the alkaline residues into the alkaline exciting agent, adding the mixture into the stirrer after the alkaline residues are completely dissolved, performing stirring and mixing at a low speed, pouring the standard sand into a stirring pot, stopping stirring, and performing stirring again to obtain alkali-activated cementing material slurry; injecting the obtained alkali-activated cementing material slurry into a mold, carrying out coagulation and hardening to remove the mold, and performing curing in a curing device to obtain the target product. The concrete is good in gelling property, ideal in impermeability and high in compressive strength, and has a micro-expansion compensation function.

Description

Technical field

[0001] The present invention is a base in which the inorganic non-metallic cementoiding material is, and more particularly to a base bonded to a high silicon-type iron tailite and a red mud gel material and a preparation method thereof.Background technique

[0002] After entering the 21st century, the effective use of resources is particularly important, and the secondary use of tail mines is more important. In order to solve the above problems, the comprehensive utilization of tailings is improved, and its usage has become a research hotspot in recent years. In the prior art, the comprehensive utilization of high silicon type tailings is low, but the tailings stack not only has a waste of space resources, but also has a serious environmental pollution issue.Inventive content

[0003] The present invention aims to overcome the deficiencies of the prior art, which provides a good gel, anti-seepage, antifreeze performance, high compressive strength, and has a high silicon-type i...