Novel red-mud-based grouting material and preparation method thereof

A grouting material and red mud technology, applied in clinker production, cement production and other directions, can solve problems such as no grouting material, and achieve the effects of broad application prospects, good permeability, good fluidity and permeability

Inactive Publication Date: 2014-07-02
焦作丁豪科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there have been many related studies on the application of red mud to the buildi...

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] According to the raw materials provided by the specific embodiments of the present invention, the formulations of each component are: in terms of weight percentage, the red mud content is 70%, slag 20%, and fly ash 10% when the dry powder mixture is prepared; The modulus is 1.5, and the dosage is 10% of the mass of the dry powder mixture. To prepare 1000g of red mud-based new grouting material, the water-cement ratio is 1:1 (the water in the water-cement ratio includes the water introduced by the compound alkaline activator and the mixing water added to the dry powder mixture), red mud-based The preparation method of the new grouting material is as follows:

[0015] 1) Dissolve 17.77g of NaOH solid in 100g of sodium water glass solution to prepare 117.77g of a composite alkaline activator with a modulus of 1.5.

[0016] 2) Take 700g of dried red mud, 200g of slag and 100g of fly ash and put them in the grinding device to grind to meet the fineness requirement, D97≤20μm...

Embodiment 2

[0019] 1) Prepare a composite alkaline activator solution with sodium silicate and NaOH, and the modulus of the composite alkaline activator is 1.2;

[0020] 2) After drying the red mud and mineral admixture, mix and grind according to the proportion, D97≤20μm, to obtain a dry powder mixture, the red mud content is 70%, the mineral admixture is slag, and the content is 30%;

[0021] 3) Add the prepared composite alkaline activator into the dry powder mixture at a dosage of 8%, add water and stir to make slurry.

Embodiment 3

[0023] 1) Prepare a composite alkaline activator solution with sodium water glass and NaOH, and the modulus of the composite alkaline activator is 1.6;

[0024] 2) After drying the red mud and the mineral admixture, mix and grind according to the proportion, D97≤20μm, to obtain a dry powder mixture, the content of the red mud is 80%, the mineral admixture is slag, and the admixture is 20%;

[0025] 3) Add the prepared composite alkaline activator into the dry powder mixture at a dosage of 12%, add water and stir to make slurry.

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PUM

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Abstract

The invention discloses a novel red-mud-based grouting material and a preparation method thereof. The grouting material comprises the following components in percentage by weight: 70-80% of red mud, 20-30% of a mineral admixture, and an additionally-admixed composite alkali activator of which the modulus is 1.2-1.6, and the appropriate admixing amount is 8-12%. The novel red-mud-based grouting material prepared by using the red mud and the mineral admixture has good liquidity and relatively high early strength, can be used for reducing the influence on the environment by reasonably adopting industrial waste residues, and is simple in ingredients and low in manufacturing cost.

Description

technical field [0001] The invention relates to a grouting material, in particular to a new red mud-based grouting material used for grouting reinforcement of tunnels, roadbeds, underground engineering and the like and a preparation method thereof. Background technique [0002] The current grouting materials mainly include inorganic and organic. Among them, the inorganic grouting materials are mainly cement and cement water glass. Although these materials have the advantages of low price and high stone body strength, due to the particle size thicker, the grout cannot penetrate into the micro-cracks of the rock and soil, and it also has the disadvantages that the setting time is not easy to control, and the grout is easy to segregate and precipitate; the organic grouting materials are mainly epoxy resin and polyurethane, and these materials can be injected Good resistance, but the stone body has low strength, poor durability, and high price, especially serious pollution to th...

Claims

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Application Information

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IPC IPC(8): C04B7/14C04B7/345C04B7/36
CPCY02P40/10Y02P40/121
Inventor 仲启方阎震彪管学茂管歆
Owner 焦作丁豪科技股份有限公司
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