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Building cement-based penetration hardening material and preparation method thereof

A cement-based, water-based technology, which is applied to the hardening material of the concrete base and penetrates into the field of cement mortar, can solve the problems of failing to completely improve the strength of the concrete structure, the complex preparation process, and the waste of materials, and achieve good adaptability and preparation process. Simple, simple construction and operation effect

Inactive Publication Date: 2012-07-11
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent publication CN1472258A provides a cement-based permeable crystalline waterproof material and a preparation method thereof. Aluminum potassium sulfate water, magnesium hydroxide, sodium silicate, calcium hydroxide, bentonite, and quartz sand, which can effectively waterproof concrete through the process of osmosis and crystallization, but cannot completely improve the strength of the concrete structure, and because of its There are many components, which makes its preparation process more complicated. At the same time, because there is a certain amount of alkali in the waterproof material provided in CN1472258A, when the cement concrete material itself is severely pan-alkaline, it not only causes waste of materials, but also makes the composition. The effect is severely reduced

Method used

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  • Building cement-based penetration hardening material and preparation method thereof
  • Building cement-based penetration hardening material and preparation method thereof
  • Building cement-based penetration hardening material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0055] In Examples 1-5, according to the component weight ratios shown in Table 1, five kinds of cement-based permeable hardening materials of the present invention were respectively prepared, and their improvements to the wear resistance of C25 cement concrete were measured respectively.

[0056] Table 1 Several cement-based hardening material formulations with different proportions

[0057]

[0058] Paint the cement-based penetrating hardening material prepared according to the above formula on the surface of C25 cement concrete, and after drying for a week, grind it according to the method described in GB / T 12988, and evaluate the wear resistance of the cement concrete material by measuring the length of the grinding pit. With the standard C25 cement concrete that is not processed by the cement-based permeable hardening material of the present invention as a contrast, the length of the grinding pit of the cement concrete that is processed by the cement-based permeable har...

Embodiment 6-11

[0064] In Examples 6-11, six alkali mixtures were prepared according to the weight ratios of the components shown in Table 3.

[0065] Alkali mixture formulas of several different proportions of table 3

[0066] composition

Example 6

Example 7

Example 8

Example 9

Example 10

Example 11

water

100

100

100

100

100

100

Calcium hydroxide

0.10

0.12

0.14

0.16

0.18

0.20

magnesium hydroxide

0.009

0.007

0.005

0.003

0.002

0

[0067] Brush the alkali mixture obtained above on the surface of C25 cement concrete respectively, and then paint the cement-based permeable hardening material of the present invention prepared according to the formula of Example 3 on the surface of the concrete after drying for one week. Grinding by the method described in / T 12988, the wear resistance of cement concrete materials is evaluated by ...

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Abstract

The invention provides a cement-based penetration hardening material and a preparation method thereof. The cement-based penetration hardening material comprises silicate or fluosilicate or mixture thereof, water-borne silane / siloxane, aluminum potassium sulfate dodecahydrate and water. The invention also provides a method and application for improving cement strength and / or wear resistance by using the cement-based penetration hardening material.

Description

technical field [0001] The invention relates to a cement-based penetration hardening material for construction and a preparation method thereof, in particular to a hardening material that penetrates into cement mortar and concrete bases in construction engineering. Background technique [0002] Ordinary cement mortar and concrete are prone to alkali-aggregate reaction (Alkali Aggregation Reaction, AAR) due to their large and numerous voids, resulting in efflorescence in their crevices. Over time, ubiquinol ages, causing cracking that is often unavoidable in engineering. This kind of cracking leads to the reduction of the strength of the concrete structure, which affects the load-bearing capacity of its surface. When the surface load is too large, it will lead to serious cracking, which will make the surface easy to dust and sand, shorten the service life of the concrete structure, and seriously It doesn't even work properly. And because the shortened service life will incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/50
Inventor 颜正荣
Owner 颜正荣
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