Durability traceless repair method for road and bridge concrete, color difference trimming putty and trimming material

A concrete and durable technology, applied in bridge maintenance, on-site coagulation pavement, roads, etc., can solve the problems of lack of overall coating, repair marks, color difference, etc., achieve low implementation cost, solve serious impact, The effect of excellent performance

Inactive Publication Date: 2010-11-03
上海惠邦特种涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large amount of road and bridge construction and the constraints of construction funds, the conditions for overall painting are not met, and repair marks and color differences are often left.

Method used

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  • Durability traceless repair method for road and bridge concrete, color difference trimming putty and trimming material
  • Durability traceless repair method for road and bridge concrete, color difference trimming putty and trimming material
  • Durability traceless repair method for road and bridge concrete, color difference trimming putty and trimming material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] Concrete with light-colored surface defects, polymer fine sand mortar can use Huibang D-102C polymer modified mortar with high flexural strength, compressive strength and bonding strength to repair larger defects on the concrete surface, and the base surface Trim and smooth;

[0087] Color finishing is carried out with a color difference finishing putty which closely matches the color of the concrete structure.

[0088] This chromatic aberration repairing putty is as follows (mass parts, total amount is 100) for single-component main formula:

[0089] White Portland cement 25

[0090] Ordinary Portland cement 3

[0091] Mineral powder 5

[0092] Quartz sand (100 mesh) 35

[0093] Quartz sand (200 mesh) 30

[0094] Available in dispersible latex powder 1.6

[0095] Medium-effect superplasticizer 0.2

[0096] Defoamer 0.2.

[0097] Using water-based silane complex emulsion Wacker company As a primer, BS 43N can significantly reduce the surface tension in the are...

Embodiment 2

[0129] Concrete with dark surface defects, polymer fine sand mortar can use Huibang D-102C polymer modified mortar with high flexural strength, compressive strength and bonding strength to repair larger defects on the concrete surface, and the base surface Trim and smooth;

[0130] Color finishing is carried out with a color difference finishing putty which closely matches the color of the concrete structure.

[0131] This chromatic aberration repairing putty is as follows (mass parts, total amount is 100) for single-component main formula:

[0132] White Portland cement 0

[0133] Ordinary Portland cement 26

[0134] Mineral powder 7

[0135] Quartz sand (100 mesh) 33

[0136] Quartz sand (200 mesh) 30

[0137] Available in dispersible latex powder 1.5

[0138] Medium-effect superplasticizer 0.2

[0139] Defoamer 0.3.

[0140] The trimming material formula adopts the same material as in Example 1.

[0141] Using solvent-based silane complex emulsion Wacker BS 290 as ...

Embodiment 3

[0163] For concrete with light-colored surface defects, the polymer fine sand mortar can use Huibang D-102C polymer modified mortar with high flexural strength, compressive strength and bonding strength to repair larger defects on the concrete surface. Surface trimming and smoothing;

[0164] Color finishing is carried out with a color difference finishing putty which closely matches the color of the concrete structure.

[0165] This chromatic aberration repairing putty is as follows (mass parts, total amount is 100) for single-component main formula:

[0166] White Portland cement 12

[0167] Ordinary Portland cement 16

[0168] Mineral powder 5

[0169] Quartz sand (100 mesh) 35

[0170] Quartz sand (200 mesh) 30

[0171] Available in dispersible latex powder 1.6

[0172] Medium-effect superplasticizer 0.1

[0173] Defoamer 0.3.

[0174] The trimming material formula adopts the same material as in Example 1.

[0175] Using water-based silane complex emulsion Wacker ...

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Abstract

The invention relates to a durability traceless repair method for road and bridge concrete. The method comprises the following steps of: (1) repairing a base surface of the concrete with a surface defect by using a repairing material so as to trim and flatten the base surface, wherein the repairing material comprises polymer fine sand mortar and color difference trimming putty; (2) performing prime coat on the repairing material; (3) preparing a trimming material, wherein the structure and color of the trimming material are similar to those of the concrete, and the trimming material has a high adhesive property; (4) performing floating coat by adopting an organic silicon resin coating; and (5) performing top coat by adopting a coating prepared from a silicon resin accessory ingredient. The formulas of the color difference trimming putty and the trimming material are introduced. The method has the advantages of effectively repairing the surface defect of the concrete structure tracklessly, restoring the strength of the concrete structure and improving waterproof property and durability of the concrete structure.

Description

technical field [0001] The invention relates to a method for modifying concrete, in particular to a technology for durability repairing and non-marking modification of road and bridge concrete, using highly targeted new materials such as high-strength polymer fine sand mortar, color difference repairing putty, and concrete protective coatings. The process ensures that the durability of the repaired part is not lower than that of the body concrete and the appearance maintains the original color of the concrete. Background technique [0002] my country's railways, highways, bridges, culverts and other concrete structures are generally exposed to the natural environment without decoration and paint due to their short construction period, large volume, and limited construction funds. [0003] As a porous building material, concrete is inevitably corroded by acid rain, low-temperature freeze-thaw, deicing agent (de-icing salt), saline soil, sea salt spray, mold, and algae, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00E01C7/14C09D5/34C08L33/14C08K13/02
Inventor 陈嘉林
Owner 上海惠邦特种涂料有限公司
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