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A cement grouting material with quartz sand and steel slag as aggregate

A technology of cement grouting and quartz sand, which is applied in the field of cement grouting materials, can solve the problems of no on-site application conditions, compressive strength of only 20MP, and no fluidity, etc., and achieve the effect of simple processing and preparation, low cost, and sufficient supply

Inactive Publication Date: 2017-12-19
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN1039788A discloses a method for making ultra-high-strength cement materials, and its compressive strength can reach 150MPa, but the material itself does not have fluidity, and the process system is made by special hot pressing, which does not have field application conditions; Chinese patent CN1271696A discloses A high-strength superfluid expansion cement grout was developed, its 28d compressive strength can reach 90MPa, but its 1d compressive strength is only 20MPa

Method used

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  • A cement grouting material with quartz sand and steel slag as aggregate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A cement grout with quartz sand and steel slag as aggregates is prepared from the following raw materials and mass parts: 100 parts of cement, 40 parts of quartz sand, steel slag with a particle size of 0.3 mm and a particle size of 30 parts of 0.6mm steel slag, 1 part of silica fume, 0.3 part of polycarboxylate superplasticizer, and 0.2 part of polydimethylsiloxane.

Embodiment 2

[0021] A cement grout with quartz sand and steel slag as aggregates is prepared from the following raw materials in proportion by mass and number: 100 parts of cement, 40 parts of quartz sand, steel slag with a particle size of 0.3 mm and a particle size of 30 parts of 0.6mm steel slag, 8 parts of silica fume, 0.5 part of polycarboxylate superplasticizer, and 0.3 part of polydimethylsiloxane.

Embodiment 3

[0023] A cement grout with quartz sand and steel slag as aggregates is prepared from the following raw materials in proportion by mass and number: 100 parts of cement, 40 parts of quartz sand, steel slag with a particle size of 0.3 mm and a particle size of 30 parts of 0.6mm steel slag, 10 parts of silica fume, 0.6 part of polycarboxylate superplasticizer, and 0.4 part of polydimethylsiloxane.

[0024] The index performance of embodiment 1-3 is as follows:

[0025]

[0026] As can be seen from the data in the table, the index properties of Examples 1-3 meet the requirements of the JC / T986-2005 "Cement Grouting Material" standard, and the compressive strengths of 1d, 3d, and 28d are respectively greater than 22MPa, 40MPa, and 70MPa; the initial fluidity and 30min fluidity retention values ​​are greater than 260mm and 230mm respectively; 1d vertical expansion rate is greater than 0.020%.

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Abstract

The invention provides cement grouting material using quartz sand and steel slag as aggregate. The cement grouting material using quartz sand and steel slag as aggregate comprises, by weight, 100 parts of cement, 40 parts of quartz sand, 60 part of steel slag, 1-10 parts of silica fume, 0.3-0.6 part of water reducing agent and 0.2-0.4 part of defoaming agent. The cement grouting material has the advantages that the cement grouting material is produced by high-quality raw materials according to an optimized proportion, the supply of the raw materials is sufficient, the raw materials are easy to obtain, and the cement grouting material is non-volatile, free of pollution, simple to produce and low in cost; a large amount of steel slag is used, waste is turned into wealth, and energy conservation and emission reduction are achieved; the performance index of the cement grouting material conforms to the standard requirements of JC / T 986-2005 Cement Grouting Material.

Description

technical field [0001] The invention relates to a cement grouting material, in particular to a cement grouting material with quartz sand and steel slag as aggregates, belonging to the field of new building materials. Background technique [0002] Cement-based grouting material is a kind of dry-mixed material with reasonable gradation after industrial production, which consists of cement as the main cementitious material, plus an appropriate amount of aggregate, and a small amount of admixtures and other materials. Cement-based grouting material has many excellent properties such as good fluidity, self-compacting, high strength, and no shrinkage at room temperature. Many aspects such as patching have extremely wide applications. The National Development and Reform Commission of my country promulgated the building materials industry standard JC / T 986-2005 "Cement Grout" in 2005. The standard requires that the compressive strength of cement grout 1d, 3d, and 28d be greater tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B18/14
CPCY02W30/91
Inventor 孙小巍马振宁吕晶李艳波王金鹏马广一
Owner SHENYANG JIANZHU UNIVERSITY