Grouting material prepared from steel slag as well as preparation method and application of grouting material

A grouting material and steel slag technology, applied in the field of grouting material and its preparation, can solve problems such as being unsuitable for large-scale popularization, unsuitable for highly corrosive marine environment, and general corrosion resistance, and achieve good early strength and hydration Speed, self-expansion without shrinkage, good corrosion resistance

Active Publication Date: 2021-02-02
宝武环科(湛江)资源循环利用有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the synchronous grouting material contains two kinds of solid wastes, red mud and steel slag, its corrosion resistance is average, and it is not suitable for highly corrosive marine environments, and it is not suitable for large-scale promotion and use.

Method used

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  • Grouting material prepared from steel slag as well as preparation method and application of grouting material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This embodiment provides a grouting material prepared by using steel slag and its preparation method. In parts by mass, the grouting material includes: 40 parts of steel slag powder, 60 parts of steel slag fine aggregate, 0.1 part of polycarboxylate superplasticizer, 0.2 part of sodium hydroxide as an activator, 0.1 part of a silicone defoamer, and 12 parts of water;

[0049] Described preparation method comprises the steps:

[0050] (1) The steel slag powder is obtained by crushing and grinding the open hearth furnace steel slag, and the specific surface area of ​​the steel slag powder is >400m 2 / kg; open hearth furnace steel slag is crushed, screened and magnetically separated to obtain the steel slag fine aggregate, the particle size of the steel slag fine aggregate is divided into three ranges, respectively 30-50 mesh, 60-80 mesh And 100-120 mesh, and the mass ratio of 30-50 mesh, 60-80 mesh and 100-120 mesh is 1:1:1;

[0051] (2) According to the proportioning b...

Embodiment 2

[0053] This embodiment provides a grouting material prepared by using steel slag and its preparation method. In parts by mass, the grouting material includes: 60 parts of steel slag powder, 40 parts of steel slag fine aggregate, 1 part of polycarboxylate superplasticizer, 5 parts of sodium hydroxide as activator, 1 part of silicone defoamer, 20 parts of water;

[0054] Described preparation method comprises the steps:

[0055] (1) The steel slag powder is obtained by crushing and grinding the converter steel slag, and the specific surface area of ​​the steel slag powder is >400m 2 / kg; the steel slag fine aggregate is obtained after the converter steel slag is crushed, screened and magnetically separated. And 100-120 mesh, and the mass ratio of 30-50 mesh, 60-80 mesh and 100-120 mesh is 1:2:2;

[0056] (2) According to the proportioning by mass, weigh 60 parts of steel slag powder prepared in step (1), 40 parts of steel slag fine aggregate prepared in step (1), 1 part of pol...

Embodiment 3

[0058] This embodiment provides a grouting material prepared by using steel slag and a preparation method thereof. In parts by mass, the grouting material includes: 50 parts of steel slag powder, 50 parts of steel slag fine aggregate, and 0.5 part of lignin superplasticizer, as 2.5 parts of calcium hydroxide as activator, 0.5 parts of polyether defoamer, 16 parts of water;

[0059] Described preparation method comprises the steps:

[0060] (1) The steel slag powder is obtained by crushing and grinding the open hearth furnace steel slag, and the specific surface area of ​​the steel slag powder is >400m 2 / kg; open hearth furnace steel slag is crushed, screened and magnetically separated to obtain the steel slag fine aggregate, the particle size of the steel slag fine aggregate is divided into three ranges, respectively 30-50 mesh, 60-80 mesh And 100-120 mesh, and the mass ratio of 30-50 mesh, 60-80 mesh and 100-120 mesh is 1:1.5:1.5;

[0061] (2) According to the proportionin...

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Abstract

The invention relates to a grouting material prepared from steel slag as well as a preparation method and application of the grouting material. The grouting material comprises the following componentsin parts by mass: 40-60 parts of steel slag powder, 40-60 parts of steel slag fine aggregate, 0.1-1 part of a water reducing agent, 0.2-5 part of an excitant, 0.1-10 part of a defoaming agent and 12-20 parts of water. The grouting material can be prepared by weighing the raw materials in parts by mass and uniformly mixing. Compared with grouting materials taking cement and sandstone aggregate asmain raw materials in the prior art, the grouting material disclosed by the invention takes the steel slag powder as a hydraulic cementing material to replace the cement and takes the steel slag fineaggregate to replace the sandstone aggregate, so that resource utilization of the steel slag can be realized, the environment is protected, and the grouting material has the advantages of good fluidity, self-expansion, no shrinkage, good corrosion resistance and the like and can be applicable to high-corrosion marine environments.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a grouting material prepared from steel slag, a preparation method and application thereof. Background technique [0002] Grouting materials refer to fluid materials that are injected into the cracks and holes of formations, rocks or structures under pressure to increase bearing capacity, prevent leakage and improve the overall performance of structures. Grouting material is a kind of material that uses cementitious material as the base material, mixed with water reducer, defoamer and other additives and fine aggregates. It has the properties of large fluidity, high strength, and micro expansion. Application of mechanical equipment installation and reinforcement repair works. Since the promotion and application of grouting materials in China in the 1990s, they have been widely used in equipment installation, bolt anchorage, and reinforcement and renovation projects of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B111/20
CPCC04B28/006C04B2111/20C04B2201/50C04B18/142C04B2103/302C04B24/42Y02W30/91
Inventor 王林赵玉静黄华叶雁飞韦江雄吴子奇
Owner 宝武环科(湛江)资源循环利用有限公司
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