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A bridge crack repair material with self-repair effect and preparation method thereof

A repair material and self-healing technology, applied in bridge maintenance, bridge, bridge construction, etc., can solve the problems of inconvenient construction and high cost

Active Publication Date: 2019-06-28
冯丽霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this material must be used in conjunction with the supporting paving device, which is costly and inconvenient for construction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A bridge crack repairing material with self-repairing effect, consisting of the following components by weight percentage:

[0030] Bonnet 0.35%

[0031] Nano silica 2.5%

[0032] Sodium Metasilicate 1.5%

[0033] Aluminum silicate 3%

[0034] Anionic surfactant 4.5%

[0035] Sodium tripolyphosphate 0.25%

[0036] Sodium Sulfate 3%

[0037] Aluminate cement 10%

[0038] Nano zinc oxide based pitch balance.

[0039] The particle size of the nano silicon dioxide is 20-50nm.

[0040] The anionic surfactant is sodium dodecylbenzenesulfonate.

[0041] The doping amount of nano-zinc oxide in the nano-zinc oxide-based asphalt is 3%.

[0042] The preparation method of the bridge crack repairing material with self-repairing effect, comprises the following steps:

[0043] A. Mix Bonet, sodium metaaluminate, aluminum silicate, anionic surfactant, sodium tripolyphosphate, sodium sulfate and aluminate cement, stir evenly, and pass through a 200-mesh sieve to obtain a mixed...

Embodiment 2

[0048] A bridge crack repairing material with self-repairing effect, consisting of the following components by weight percentage:

[0049] Bonnet 0.2%

[0050] Nano silica 5%

[0051] Sodium metasilicate 1%

[0052] Aluminum silicate 4%

[0053] Anionic surfactant 2%

[0054] Sodium tripolyphosphate 0.3%

[0055] Sodium Sulfate 2%

[0056] Aluminate cement 15%

[0057] Nano zinc oxide based pitch balance.

[0058] The particle size of the nano silicon dioxide is 20-50nm.

[0059] The anionic surfactant is sodium dodecylbenzenesulfonate.

[0060] The doping amount of nano-zinc oxide in the nano-zinc oxide-based asphalt is 2%.

[0061] The preparation method of the bridge crack repairing material with self-repairing effect, comprises the following steps:

[0062] A. Mix Bonet, sodium metaaluminate, aluminum silicate, anionic surfactant, sodium tripolyphosphate, sodium sulfate and aluminate cement, stir evenly, and pass through a 200-mesh sieve to obtain a mixed powder;...

Embodiment 3

[0067] A bridge crack repairing material with self-repairing effect, consisting of the following components by weight percentage:

[0068] Bonnet 0.5%

[0069] Nano silica 2%

[0070] Sodium metasilicate 3%

[0071] Aluminum silicate 2%

[0072] Anionic surfactant 5%

[0073] Sodium tripolyphosphate 0.1%

[0074] Sodium Sulfate 4%

[0075] Aluminate cement 8%

[0076] Nano zinc oxide based pitch balance.

[0077] The particle size of the nano silicon dioxide is 20-50nm.

[0078]The anionic surfactant is sodium dodecylbenzenesulfonate.

[0079] The doping amount of nano-zinc oxide in the nano-zinc oxide-based asphalt is 5%, and the more preferred doping amount of nano-zinc oxide is 3%.

[0080] The preparation method of the bridge crack repairing material with self-repairing effect, comprises the following steps:

[0081] A. Mix Bonet, sodium metaaluminate, aluminum silicate, anionic surfactant, sodium tripolyphosphate, sodium sulfate and aluminate cement, stir evenly...

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Abstract

The invention discloses a bridge crack repairing material with a self-repairing effect and a preparation method of the bridge crack repairing material. The bridge crack repairing material consists ofthe following components: Bonite, nano silica, sodium metasilicate, aluminum silicate, an anionic surfactant, sodium tripolyphosphate, sodium sulfate, aluminate cement and nano zinc oxide asphalt. Therepairing material comprises two different organic and inorganic systems, the nano zinc oxide asphalt is used as an organic system and has a main function that the penetrating quality is utilized, after the material is used, a crack still has certain activity, and then a self-repairing effect can be achieved; the inorganic system has main components of aluminate cement and Bonite and has a main function of being combined with a substrate; due to addition of sodium metasilicate, aluminium silicate, sodium tripolyphosphate and sodium sulfate, curing and cross-linking effects can be achieved, and a compatibility of the two inorganic and organic systems of the material can be improved; due to addition of the nano silica, the filling effect of the asphalt can be improved by nano-grade small granules.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a bridge crack repairing material with self-repairing effect and a preparation method thereof. Background technique [0002] Traditional bridge cracks are repaired using mechanical methods. For example, in the external prestressed reinforcement construction of other bridges, prestressed steel bars, steel strands, high-strength steel wires and other materials are usually used to offset the internal force generated by external loads on the beam body by applying prestress. , improve its ultimate bearing capacity and inhibit the development of cracks. Prestressed steel bars, steel strands, and high-strength steel wires are self-heavy, which increases the self-weight of the bridge, which is not conducive to the ultimate bearing capacity of the structure. This method is not only costly, but also difficult to construct, which also increases the burden on the girder bridge itself,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06E01D22/00
CPCC04B28/06C04B2111/00672E01D22/00C04B2103/63C04B14/062C04B12/04C04B22/00C04B22/16C04B22/147C04B24/36C04B2103/40
Inventor 冯丽霞赵军辉张建成于亚军魏安清苌伟涛李晓军郑欣郑志民史彦卫
Owner 冯丽霞
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