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A kind of emulsified asphalt compound red mud-boron mud filling grouting material and preparation method thereof

A technology of emulsified asphalt and grouting material, applied in the field of road engineering grouting material, can solve the problems of inflexible strength control, long setting time, insufficient cohesion, etc., to ensure the repair effect, low price, improve and adjust the strength and the effect of hardness

Active Publication Date: 2019-06-14
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the above-mentioned grouting materials either mainly use cement-based grouting materials, which have disadvantages such as poor stability, insufficient cohesive force, low early strength, and long setting time; or mainly use solid waste as the main component of grouting materials. There are deficiencies in poor adhesion and insufficient flexibility in strength control

Method used

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  • A kind of emulsified asphalt compound red mud-boron mud filling grouting material and preparation method thereof
  • A kind of emulsified asphalt compound red mud-boron mud filling grouting material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0046] A method for preparing emulsified asphalt compound red mud-boron mud filling grouting material, comprising the following steps:

[0047] (1) Weigh 900g of heavy traffic road asphalt AH-50, and heat the asphalt to 135°C; weigh 45g of cationic surfactant (quaternary ammonium salt), 40g of acidity regulator (acetic acid) and 180g of water, Mix evenly and keep the temperature at 50°C; process and emulsify the asphalt and the above mixed solution under the colloid mill for 5 minutes, wherein the speed of the colloid mill is set at 6500rpm;

[0048] (2) Weigh 90 g of water glass, 120 g of ordinary Portland cement (grade 42.5) and 90 g of plaster of paris, stir evenly in a mixer, and control the speed at 75 rpm to obtain the curing agent.

[0049] (3) Take 600g of cationic emulsified asphalt prepared in step (1), and add sintered red mud (with a specific surface area of ​​360 to 390m 2 / kg range) 400g, 400g of boron mud and 300g of curing agent prepared by capturing (2), stir...

Embodiment 2

[0052] A method for preparing emulsified asphalt compound red mud-boron mud filling grouting material, comprising the following steps:

[0053] (1) Weigh 800g of heavy traffic road asphalt AH-30, and heat the asphalt to 150°C; weigh 60g of cationic surfactant (alkylimidazolinium salt), 40g of acidity regulator (hydrochloric acid) and 100g of water, Mix evenly in the stirring mode and maintain the temperature at 60°C; process and emulsify the asphalt and the above mixed solution under the colloid mill for 8 minutes, and the speed of the colloid mill is set at 7000rpm.

[0054] (2) Weigh 90 g of water glass, 150 g of ordinary Portland cement (grade 42.5) and 60 g of plaster of paris, and stir them evenly in a mixer with the speed controlled at 60 rpm.

[0055] (3) Take 400 g of cationic emulsified pitch prepared in step (1), and add sintered red mud (with a specific surface area of ​​370 to 430 m 2 / kg range) 800g, 600g of boron mud and 300g of curing agent prepared in step (2)...

Embodiment 3

[0058] A method for preparing emulsified asphalt compound red mud-boron mud filling grouting material, comprising the following steps:

[0059] (1) Weigh 900g of heavy traffic road asphalt AH-70, and heat the asphalt to 140°C; weigh 15g of cationic surfactant (lignin), 20g of acidity regulator (acetic acid) and 150g of water, and mix it under stirring mode Mix evenly and maintain the temperature at 40°C; process and emulsify the asphalt and the above mixed solution under the colloid mill for 3 minutes, wherein the speed of the colloid mill is set at 4000rpm.

[0060] (2) Weigh 80 g of water glass, 110 g of ordinary Portland cement (grade 52.5) ​​and 50 g of plaster of paris, and stir them evenly in a mixer with the rotational speed controlled at 70 rpm.

[0061] (3) Take 300g of cationic emulsified asphalt prepared in step (1), and add sintered red mud (with a specific surface area of ​​360 to 400m 2 / kg range) 300g, 300g of boron mud and 100g of curing agent prepared in step...

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Abstract

The invention belongs to the technical field of road engineering grouting materials, in particular to an emulsified asphalt compound red mud-boron mud filling grouting material and a preparation method thereof. The grouting material is composed of the following components in parts by weight: 30-60 parts of cationic emulsified asphalt, 20-80 parts of red mud, 20-60 parts of boron mud, 10-30 parts of curing agent, and 1-4 parts of early strength agent , 2 to 6 parts of water reducer, 1 to 4 parts of defoamer. The preparation method is as follows: heating the asphalt; stirring the cationic surfactant, acidity regulator and water evenly and heating to obtain a mixed solution; emulsifying the asphalt and the mixed solution; then adding red mud, boron mud and curing agent, stirring After cooling, add early strength agent, water reducing agent and defoaming agent, and after stirring, emulsified asphalt compound red mud-boron mud filling grouting material is obtained. The grouting material of the invention has the characteristics of high early strength, short curing time, adjustable and controllable strength, and good compatibility with the original roadbed and road surface.

Description

technical field [0001] The invention belongs to the technical field of road engineering grouting materials, in particular to an emulsified asphalt compound red mud-boron mud filling grouting material and a preparation method thereof. Background technique [0002] Red mud is a polluting waste residue produced in the aluminum industry. On average, 1 to 2 tons of red mud is produced for every ton of alumina produced. The annual production of red mud in my country is more than 30 million tons. 60% to 65% of the main minerals in red mud are aragonite and calcite. In addition to occupying land during the stacking process, a large amount of red mud contains chemical components such as alkali, fluoride, sodium, and aluminum, which will cause alkalization of the land, pollute groundwater, endanger human health, and cause environmental pollution. [0003] Boron mud is the waste residue produced in the process of producing boric acid and borax. It is alkaline and its main chemical com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/26
CPCC04B28/26C04B2201/50C04B18/0418C04B7/02C04B11/00C04B24/36C04B24/12C04B24/04C04B22/124C04B24/20C04B24/32C04B24/00C04B22/122C04B22/12C04B24/08C04B2103/302C04B2103/40C04B24/42
Inventor 梁明辛雪姚占勇张吉哲蒋红光
Owner SHANDONG UNIV
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