Delay coagulated slew expansion filling powder

A technology of retarding and grinding, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve problems such as non-expansion, and achieve the effect of low manufacturing cost and wide application scope.

Inactive Publication Date: 2005-11-09
刘兴才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second patent "Mining Filling and Plugging Low Water Glue Solid Powder" can only be used for cementing materials and has no expansibility.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1 (percentage by weight)

[0040] Slag 70%

[0041] Gypsum 25%

[0042] Lime 5%

[0043] This embodiment is the best embodiment, and the following other embodiments are compared with this embodiment.

[0044] This embodiment has a moderate expansion ratio and can be used for general grouting to fill cracks and seal water. Because the present embodiment slag is used more, so manufacturing cost is lower.

[0045] Technical features of embodiment 1: the volume expansion ratio is 100:110, its strength is: compressive > 10 MPa, and it has a wide range of applications.

Embodiment 2

[0046] Embodiment 2 (percentage by weight)

[0047] Slag 80%

[0048] Gypsum 15%

[0049] Lime 5%

[0050] Technical features of embodiment 2: compared with 1, the expansion ratio is too small, so it can only be used as cementing material. Due to the small expansion ratio, the plugging performance is poor and the application range is small. But the intensity is higher than 1.

Embodiment 3

[0051] Embodiment 3 (percentage by weight)

[0052] Slag 60%

[0053] Gypsum 30%

[0054] Lime 10%

[0055] The technical characteristics of embodiment 3 are: the expansion ratio is larger than that of 1, resulting in low strength, which is difficult to grasp in application. It is suitable for grouting anti-permeability waterproofing projects that require slow setting.

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Abstract

A slow-setting and-expanding filler powder for the engineering grout is proportionally prepared from slags, gypsum and lime through mixing and grinding.

Description

technical field [0001] The invention relates to a slow setting and slow expansion filling powder used for grouting, sealing or cementing other fine materials (sand or ash) filling in mining, water conservancy, tunnel, highway and other projects. Background technique [0002] On April 29, 1997, the applicant applied for an invention patent entitled "Coal Mine Delamination Belt Grouting Anti-Leakage Plugging Expansion Mud Powder" as the inventor, the application number is 97105827.X, and the application date is 1997 On April 29, the patent was authorized, and the authorization announcement date was July 19, 2000. [0003] The abstract of the patent specification is: "A coal mine separation zone grouting anti-leakage plugging expansion mud powder, which replaces the original fly ash, clay, coal slime and other grouting materials. The weight percentage of the expansion mud powder is: clay : 20-60%; sulfoaluminate clinker: 20-50%; gypsum: 10-40%; lime: 5...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14
CPCY02W30/91
Inventor 刘兴才
Owner 刘兴才
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