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Preparation and spraying method of normal-temperature asphalt stress absorption film for heavy corrosion prevention of steel bridge deck/steel base surface

A normal-temperature asphalt and stress-absorbing technology, which is applied in anti-corrosion coatings, asphalt coatings, coatings, etc., can solve the problems of not requiring large-scale maintenance, and achieve the effects of convenient spraying, prolonging service life, and obvious economic benefits

Active Publication Date: 2021-04-27
南通福伦利新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem that the steel bridge deck / steel base surface in the prior art will be used for a long time under the long-term corrosion environment of marine atmosphere and industrial atmosphere. The problem of not doing extensive repairs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0032] Add 0%wt water-based epoxy resin and 0%wt water-based curing agent to the asphalt composite emulsion at room temperature, and the resulting sprayed stress-absorbing film becomes dull after soaking in 35% NaCl for 10 days, and foams after soaking in 0.1mol HCl for 10 days serious.

specific Embodiment 2

[0034] Adding 36%wt water-based epoxy resin and 18%wt water-based curing agent to the asphalt composite emulsion at room temperature, the resulting sprayed stress-absorbing film has no change in gloss when soaked in 35% NaCl for 10 days, and does not change after soaking in 0.1mol HCl for 10 days. See blistering.

[0035] In summary, the normal temperature asphalt stress absorbing film preparation and spraying method for steel bridge deck / steel base surface heavy anticorrosion of the present invention, the normal temperature asphalt stress absorbing film has strong adhesion, flexibility and Excellent creep resistance greatly prolongs the service life of the steel bridge deck / steel base surface, and the normal temperature asphalt stress absorbing membrane can be soaked in 35% NaCl for 10 days without any change in luster, and soaked in 0.1mol HCl for 10 days without any change Foaming, preparation and spraying are convenient, and have obvious economic benefits.

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PUM

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Abstract

The invention discloses a preparation and spraying method of a normal-temperature asphalt stress absorption film for heavy corrosion prevention of a steel bridge deck / steel base surface. A normal-temperature asphalt composite aqueous emulsion is prepared; the normal-temperature asphalt stress absorption film is formed by adding a tackifying and toughening asphalt modifier, a heavy-duty anticorrosive water-borne epoxy resin and a water-borne curing agent into the normal-temperature asphalt composite aqueous emulsion and spraying the normal-temperature asphalt composite aqueous emulsion onto the steel bridge deck / steel base surface. The film has high adhesion, flexibility and excellent creep resistance to the steel base surface; the service life of the steel bridge deck / steel base surface is greatly prolonged, the gloss of the normal-temperature asphalt stress absorption film is not changed after the normal-temperature asphalt stress absorption film is soaked in 35% NaCl for 10 days and is not bubbled after the normal-temperature asphalt stress absorption film is soaked in 0.1 mol HCl for 10 days, and the normal-temperature asphalt stress absorption film is convenient to prepare and spray and has obvious economic benefits.

Description

technical field [0001] The invention relates to the technical field of road construction and maintenance, in particular to a preparation and spraying method of a normal-temperature asphalt stress-absorbing film used for heavy anticorrosion of steel bridge decks / steel base surfaces. Background technique [0002] At present, the steel bridge deck / steel base surface is affected by sunlight, wind and sand, rain and snow, frost and dew, and temperature and humidity changes throughout the year in the atmospheric environment. Oxygen and moisture in the atmosphere are important factors that cause corrosion of outdoor steel structures. , Moreover, the industrial gases that cause corrosion of steel structures contain SO2, CO2, NO2, CI2, H2S and NH3, etc. Although the contents of these components are small, the corrosion hazards to steel structures cannot be ignored. Among them, SO2 has the greatest impact, and CI2 The passivation film on the metal surface can be destroyed. The above-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/08E01D22/00C09D195/00C09D7/65C09D7/61C09D5/08
CPCE01D19/083E01D22/00C09D195/00C09D5/08C09D7/61C09D7/65C08L2205/035C08L63/00C08L9/08C08L23/0853C08L53/02C08K3/013
Inventor 蔡海军刘志良沈峰邵雪军刘晓徐吴新峰毛开明郁讳讳顾健健
Owner 南通福伦利新材料有限公司