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High-strength automatic-flow crack-pouring castable and preparation method thereof

A castable, high-strength technology, applied in the field of gap filling materials, can solve the problems of easy steel penetration, inconvenient construction, difficult combination, etc., and achieve the effect of no vibration, easy construction, and good fluidity

Inactive Publication Date: 2015-11-18
鞍钢实业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Metal structural parts and refractory prefabricated parts, refractory prefabricated parts and refractory prefabricated parts are difficult to combine with each other, and problems such as steel penetration are prone to occur, especially in the narrow space between metal structural parts and prefabricated parts or between prefabricated parts and prefabricated parts. Construction, in this case, the method of pouring castables can only be used. When the existing castables are poured, vibration and degassing are required, which brings inconvenience to the construction

Method used

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  • High-strength automatic-flow crack-pouring castable and preparation method thereof
  • High-strength automatic-flow crack-pouring castable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The high-strength self-flowing joint castable is made of the following materials according to the weight ratio:

[0023] Brown corundum particles (1-3㎜) 43 parts; brown corundum particles (0-1㎜) 20 parts; brown corundum powder (200 mesh) 20 parts; high-purity magnesia (0-1㎜) 2 parts, high-purity magnesia (200 mesh ) 2 parts, 8 parts of micropowder, 5 parts of binder, and 0.02 part of admixture.

[0024] Wherein, the micropowder adopts the mixture of alumina micropowder and silica fume powder, 7 parts of alumina micropowder, and 1 part of silica fume powder. The binder is sear-71 cement. The additive is a mixture of sodium hexametaphosphate and polyacrylamide, and its mass ratio is: 3 parts of sodium hexametaphosphate and 1 part of polyacrylamide.

[0025] The preparation method of the castable: Put the used refractory raw materials (brown corundum and high-purity magnesia) and micropowder in the mixer for 4 minutes; then add the binder and admixture to the mixer, and ...

Embodiment 2

[0027] The high-strength self-flowing joint castable is made of the following materials according to the weight ratio:

[0028] Brown corundum particles (1-3㎜) 41 parts; brown corundum particles (0-1㎜) 20 parts; brown corundum powder (200 mesh) 22 parts; high-purity magnesia (0-1㎜) 2 parts, high-purity magnesia (200 mesh ) 2 parts, 8 parts of micropowder, 5 parts of binder, and 0.02 part of admixture.

[0029] Wherein, the micropowder adopts the mixture of alumina micropowder and silica fume powder, 8 parts of alumina micropowder, 1 part of silica fume powder. The binder is sear-71 cement. The additive is a mixture of sodium hexametaphosphate and polyacrylamide, and its mass ratio is: 4 parts of sodium hexametaphosphate and 2 parts of polyacrylamide.

[0030] The preparation method of castable is the same as that of Example 1.

Embodiment 3

[0032] The high-strength self-flowing joint castable is made of the following materials according to the weight ratio:

[0033] Brown corundum particles (1-3㎜) 40 parts; brown corundum particles (0-1㎜) 21 parts; brown corundum powder (200 mesh) 21 parts; high-purity magnesia (0-1㎜) 3 parts, high-purity magnesia (200 mesh ) 2 parts, 8 parts of micropowder, 5 parts of binder, and 0.02 part of admixture.

[0034] Wherein, the micropowder adopts the mixture of alumina micropowder and silica fume powder, 6 parts of alumina micropowder, and 1 part of silica fume powder. The binder is aluminate cement. The additive is a mixture of sodium hexametaphosphate and polyacrylamide, and its mass ratio is: 3 parts of sodium hexametaphosphate and 1 part of polyacrylamide.

[0035] The preparation method of castable is the same as that of Example 1.

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Abstract

The invention relates to a high-strength automatic-flow crack-pouring castable and a preparation method thereof; with used refractory material waste as a raw material, the castable comprises the components in parts by weight: 35-45 parts of brown fused alumina coarse particles, 15-25 parts of brown fused alumina fine particles, 15-25 pars of a brown fused alumina powder, 1-3 parts of high-purity coarse magnesia, 1-3 parts of high-purity fine magnesia, 6-10 parts of a micro powder, 3-5 parts of a binder, and 0.01-0.04 part of an additive. The castable has the advantages that the high-strength automatic-flow castable without vibration and degassing is mainly applied in a narrow space position between a metal structural member and a prefabricated member or between a prefabricated member and a prefabricated member, solves the problems of difficult bonding and easy steel penetration between the metal structural member and the refractory prefabricated member and between the refractory prefabricated member and the refractory prefabricated member, and has the advantages of no vibration, high strength, good liquidity, easy degassing and easy construction during construction.

Description

technical field [0001] The invention relates to a gap filler between a metal structural part and a prefabricated part or a prefabricated part, in particular to a high-strength self-flowing joint pouring material and a preparation method thereof. Background technique [0002] Metal structural parts and refractory prefabricated parts, refractory prefabricated parts and refractory prefabricated parts are difficult to combine with each other, and problems such as steel penetration are prone to occur, especially in the narrow space between metal structural parts and prefabricated parts or between prefabricated parts and prefabricated parts. Construction, this situation can only adopt the method of castable pouring, when existing pouring material pours, needs vibration and degassing, brings inconvenience to construction. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a high-strength sel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 关艳孙丽杰王超李纯宝赵宇卢艳霞唐建平
Owner 鞍钢实业集团有限公司
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