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Grouting material and preparation method thereof

A technology of grouting materials and raw materials, which is applied in the field of building materials, can solve the problems of low 3D compressive strength and low compressive strength, and achieve the effects of protecting the environment, broad application prospects, and reducing costs

Inactive Publication Date: 2017-10-20
华娜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its 3d compressive strength and 28d compressive strength are relatively low, which cannot meet the needs of practical applications

Method used

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  • Grouting material and preparation method thereof
  • Grouting material and preparation method thereof
  • Grouting material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A grouting material, the raw material components of the grouting material include in parts by weight:

[0037]

[0038] Wherein, the modified red mud is prepared by the following method: calcining the red mud at 450° C. for 4 hours, dispersing the calcined product in Na 2 WO 4 , NaOH and hydantoin derivatives in aqueous solution (Na 2 WO 4 , NaOH and hydantoin derivatives in a molar ratio of 1:10:3), and reacted at 70°C for 8h to obtain modified red mud.

Embodiment 2

[0040] A grouting material, the raw material components of the grouting material include in parts by weight:

[0041]

[0042] Wherein, the modified red mud is prepared by the following method: calcining the red mud at 600° C. for 1 h, dispersing the calcined product in Na 2 WO 4 , NaOH and hydantoin derivatives in aqueous solution (Na 2 WO 4 , NaOH and hydantoin derivatives in a molar ratio of 1:1:5), and reacted at 80° C. for 5 hours to obtain modified red mud.

Embodiment 3

[0044] A grouting material, the raw material components of the grouting material include in parts by weight:

[0045]

[0046]

[0047] Wherein, the modified red mud is prepared by the following method: calcining the red mud at 500°C for 2 hours, dispersing the calcined product in Na 2 WO 4 , NaOH and hydantoin derivatives in aqueous solution (Na 2 WO 4 , NaOH and hydantoin derivatives in a molar ratio of 1:10:5), and reacted at 75°C for 6h to obtain modified red mud.

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PUM

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Abstract

The invention discloses a grouting material which comprises the following raw materials in parts by weight: 75-85 parts of modified red mud, 1-2 parts of hydrotalcite, 4-8 parts of exciting agent, 10-15 parts of active initiator, 1-5 parts of silica fume, 0.5-1 part of retarder, 0.5-1 part of surfactant and 0.5-1 part of water retention agent. The flowability of the grouting material is good; the flowability is greater than 30s; the flowability is still greater than 30s after placement for 30min; the consolidation strength is high; a grouting range is wide; a binding force of grout with cement concrete and soil is high in a consolidation process; the 3d compressive strength is greater than 10MPa; and the 28d compressive strength is greater than 30MPa.

Description

technical field [0001] The invention relates to a grouting material and a preparation method thereof, in particular to a grouting material using modified red mud and hydrotalcite as raw materials, and belongs to the technical field of building materials. Background technique [0002] Red mud is an industrial solid waste discharged from the aluminum industry after extracting alumina from bauxite. It generally contains a large amount of iron oxide and has a similar appearance to red soil, hence the name. According to the quality of bauxite, it can be divided into sintering method, Bayer method and mixed method red mud. Generally, for every ton of alumina produced, 1.0 to 2.0 tons of red mud will be produced incidentally. According to incomplete statistics, my country's annual discharge of red mud is as high as tens of millions of tons, and has accumulated more than tens of millions of tons. The utilization rate of red mud is low, and the utilization rate does not exceed 7%. A...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B20/04C04B20/02C04B18/04C04B111/70
CPCY02W30/91C04B28/006C04B20/04C04B2111/70C04B2201/50C04B12/04C04B18/0409C04B14/36C04B18/146C04B22/16C04B24/383C04B24/085C04B24/124C04B18/141C04B18/12C04B14/106C04B14/14C04B18/142C04B18/08C04B20/023
Inventor 华娜
Owner 华娜
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