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Bridge maintenance method

A bridge and curing agent technology, applied in bridges, bridge maintenance, bridge reinforcement, etc., can solve problems affecting the service life of bridges, hidden dangers, aging, etc., and achieve the effect of improving service life, preventing damage, and preventing rapid aging.

Active Publication Date: 2013-03-06
CHINA ROAD & BRIDGE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing bridges are asphalt decks, which have strong support and strong compression resistance, but most of them will not be maintained. As time goes by, cracks, aging, and peeling will occur, which will affect the service life of the bridge and also There are safety hazards, therefore, it is becoming more and more important to establish an effective bridge maintenance method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] The preparation method of the bridge maintenance agent is as follows: stir the modified asphalt and heat it to 180 degrees, add lubricating oil, continue to stir for 30 minutes, cool down to 130 degrees Celsius, and add styrene-butadiene block copolymer, refined carbon Five resins, high-pressure low-density polyethylene and fatty alcohol polyoxyethylene ether, stirred for 60 minutes, cooled to 110°C, added n-butanol and cyclohexanone, stirred for 30 minutes, cooled to 50°C, added UV absorber and glycerin, Stirring for 30 minutes and subpackaging to obtain a curing solution; stirring and mixing the stone chips, glass slag powder and rubber powder before subpackaging to obtain an additive mixture. When spraying the bridge curing agent, first block the bridge and clean the bridge deck; spray 200g / m on the entire bridge deck 2 of the curing solution, sprinkled on it with 50g / m 2 Add the mixture to form the first curing layer; then spray 150g / m on the first curing layer 2 ...

Embodiment 1

[0026] A maintenance method for a bridge, said method comprising the steps of:

[0027] Step 1. Establish a bridge information database to count and record the location, size, type, construction time and repairs since construction of all bridges in the city;

[0028] Step 2. Check the bridge at least every half month, including whether the subsidence of the bridge deck, temperature cracks, fatigue cracks and looseness occur, and report the results in an accurate and timely manner and update the recorded bridge information;

[0029] Step 3, the place where the crack occurs is bonded with an adhesive, and the adhesive is composed of the following components in the following parts by weight: emulsified asphalt: talcum powder: antifreeze: methylene chloride: dichloroprene ene: mustard oil = 80:10:2:20:30:40;

[0030]Step 4. In the absence of abnormal conditions, spray the bridge maintenance agent every six months. The bridge maintenance agent includes a maintenance solution and a...

Embodiment 2

[0035] A maintenance method for a bridge, said method comprising the steps of:

[0036] Step 1. Establish a bridge information database to count and record the location, size, type, construction time and repairs since construction of all bridges in the city;

[0037] Step 2. Check the bridge at least every half month, including whether the subsidence of the bridge deck, temperature cracks, fatigue cracks and looseness occur, and report the results in an accurate and timely manner and update the recorded bridge information;

[0038] Step 3, the place where the crack occurs is bonded with an adhesive, and the adhesive is composed of the following components in the following parts by weight: emulsified asphalt: talcum powder: antifreeze: methylene chloride: dichloroprene ene: mustard oil = 80:10:2:20:30:40;

[0039] Step 4. In the absence of abnormal conditions, spray a bridge maintenance agent every six months. The bridge maintenance agent includes a maintenance solution and an...

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Abstract

The invention discloses a bridge maintenance method which comprises the following steps of: 1, establishing a bridge information library; 2, at least semimonthly inspecting a bridge; 3, bonding positions with cracks by utilizing an adhesive agent; 4, biannually spraying a bridge maintenance agent; and 5, updating bridge information in the bridge information library. The spraying method is as follows: spraying a 200g / m<2> maintenance solution on the whole surface of the bridge and scattering a 50g / m<2> additive mixture on the maintenance solution so as to form a first maintenance layer; then spraying a 150g / m<2> maintenance solution on the first maintenance layer and scattering a 50g / m<2> additive mixture on the maintenance solution so as to form a second maintenance layer; and after waiting for 2 hours, spraying a 150g / m<2> maintenance solution on the second maintenance layer so as to form a third maintenance layer. The method disclosed by the invention can be used for finding out potential safety hazards existing in the bridge in time and eliminating the potential safety hazards, so that the bridge has long service life.

Description

technical field [0001] The invention relates to the field of bridge maintenance, in particular to a bridge maintenance method. Background technique [0002] With the development of science and technology and the progress of the times, transportation has become more and more convenient, the world has become smaller and smaller, and more and more bridges have appeared, which have brought a lot of convenience to people's lives. Most of the existing bridges are asphalt decks, which have strong support and strong compression resistance, but most of them will not be maintained. As time goes by, cracks, aging, and peeling will occur, which will affect the service life of the bridge and also There are potential safety hazards, therefore, it is becoming more and more important to establish an effective bridge maintenance method. Contents of the invention [0003] The purpose of the present invention is to provide an effective bridge maintenance method, which can detect the dangers...

Claims

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Application Information

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IPC IPC(8): E01D22/00
Inventor 李连友沈兆普杨小刚庞彪霍立飞
Owner CHINA ROAD & BRIDGE
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