Tailing filling all-solid-waste cementing material and preparation method thereof
A technology for tailings filling and cementitious materials, applied in cement production and other directions, can solve the problems of high sedimentation rate and low compressive strength, and achieve the effects of preventing agglomeration, reducing shrinkage rate and reducing shrinkage.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0028] S1. Material preparation: 22 parts of tailings slag, 45 parts of steel slag, 3 parts of calcium fluoride slag, 18 parts of anhydrite, 7 parts of calcined clay, 0.2 parts of polycarboxylate superplasticizer, 4 parts of activator, of which the average particle size of activator is The diameter is 2-3 μm, and it is a composition of tetrasodium pyrophosphate, sodium silicate, and sodium fluorosilicate in a mass ratio of 1:2:0.3, and the particle size of anhydrite is ≤500 μm. The calcined clay is prepared by the following steps: The clay is calcined at 2000°C for 4 hours at a high temperature, and after cooling, it is ground to a particle size of ≤100 μm;
[0029] S2. Crushing steel slag, tailings slag, and calcium fluoride slag to a particle size of 20-30mm;
[0030] S3, dry grinding to a particle size of 5-10mm;
[0031] S4. Add water and half of the polycarboxylate high-efficiency water reducer, the mass ratio of water to the mixture is 15%, and wet mill until the partic...
Embodiment 2
[0035] S1. Material preparation: 31 parts of tailings slag, 50 parts of steel slag, 5 parts of calcium fluoride slag, 22 parts of fluorogypsum, 9 parts of calcined clay, 0.5 parts of polycarboxylate superplasticizer, 6 parts of activator, of which the average particle size of activator is The diameter is 2-3 μm, and it is a composition of tetrasodium pyrophosphate, sodium silicate, and sodium fluorosilicate in a mass ratio of 1:2:0.3, and the particle size of anhydrite is ≤500 μm. The calcined clay is prepared by the following steps: The clay is calcined at 1800°C for 5 hours at a high temperature, and after cooling, it is ground to a particle size of ≤100 μm;
[0036] S2. Crushing steel slag, tailings slag, and calcium fluoride slag to a particle size of 20-30mm;
[0037] S3, dry grinding to a particle size of 5-10mm;
[0038] S4. Add water and half of the polycarboxylate high-efficiency water reducer, the mass ratio of water to the mixture is 20%, and wet mill until the par...
Embodiment 3
[0042] S1. Material preparation: 28 parts of tailings slag, 48 parts of steel slag, 4 parts of calcium fluoride slag, 20 parts of fluorogypsum, 8 parts of calcined clay, 0.4 part of polycarboxylate superplasticizer, 5 parts of activator, of which the average particle size of activator is The diameter is 2-3 μm, and it is a composition of tetrasodium pyrophosphate, sodium silicate, and sodium fluorosilicate in a mass ratio of 1:2:0.3, and the particle size of anhydrite is ≤500 μm. The calcined clay is prepared by the following steps: The clay is calcined at 1900°C for 4.5 hours at high temperature, and after cooling, it is ground to a particle size of ≤100 μm;
[0043] S2. Crushing steel slag, tailings slag, and calcium fluoride slag to a particle size of 20-30mm;
[0044] S3, dry grinding to a particle size of 5-10mm;
[0045] S4. Add water and half of the polycarboxylate high-efficiency water reducer, the mass ratio of water to the mixture is 20%, and wet mill until the part...
PUM
| Property | Measurement | Unit |
|---|---|---|
| The average particle size | aaaaa | aaaaa |
| Particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More