New construction method for elastic concrete in longitudinal spliced seams of roads and bridges

A technology for elastic concrete and highway bridges, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of difficult control of heating temperature, elastic asphalt and aggregate mix ratio can not meet the requirements, etc.

Active Publication Date: 2010-02-10
上海申继交通科技有限公司
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the above-mentioned problems in the generation of elastic concrete in the prior art because the heating temperature is too high and it is difficult

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • New construction method for elastic concrete in longitudinal spliced seams of roads and bridges

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0009] Embodiment: In the construction of the longitudinal seam of the bridge, a groove 1 with a width of 30-40 cm can be excavated at the longitudinal seam of the old and new bridges, and the groove 1 is cleaned. The bottom is coated with bonding material, and the bottom is treated with steel plate 2. Then pour the elastic concrete 3 produced by mixing into the trench 1, and then treat the surface, and open to traffic after cooling for two hours. In the figure, 4 is an asphalt pavement, 5 is a concrete beam, and 6 is filled with sponge.

[0010] After the elastic concrete is applied to the construction of the longitudinal joints of the old and new bridges, a continuous whole is formed at the longitudinal joints, and the filling surface is flat and seamless. Even if the settlement of the old and new bridges is uneven, the longitudinal joints are still a Gentle slope, it will not form a sudden change in height difference to hinder driving safety, making driving more stable, co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a new construction method for elastic concrete in longitudinal spliced seams of roads and bridges. The method comprises the following steps: placing elastic bitumen into a rotatable heating barrel; heating the elastic bitumen by using a heat-conducting medium placed in a sandwich layer between the heating barrel walls; continually rotating the heating barrel during heating; adding preheated and cleaned broken stones into the heating barrel according to a proportion; heating the mixture again and continually rotating the heating barrel; rotating the heating barrel at preserved temperature after a set temperature is achieved; and discharging the material and filling the seams. The step of discharging the material and filling the seams comprises that the elastic concrete mixed with the broken stones is poured at the spliced seams dug with notches, the spliced seams are cleaned and treated beforehand, and the elastic concrete is solidified. The new construction method has the advantages that the heating temperature and matching ratio are well controlled, the strength of the elastic concrete is greatly improved, the compressive strength of the elastic concrete is improved so that upheaval is not produced at the high temperature, the shearing strength of the elastic concrete is improved, the spliced seams do not crack, and the difficult problem encountered in the bridge spliced construction for long term is solved.

Description

technical field [0001] The invention relates to a municipal construction method, in particular to a new construction method of elastic concrete in the longitudinal joints of highway bridges. Background technique [0002] At present, in the construction of municipal roads and road widening projects, except for the old bridges that cannot be used, new bridges are spliced ​​beside the old bridges; there are also a lot of splicing cases between the new roads and the original roads. Since two relatively independent structures will always produce uneven settlement, different settlements will be produced between the old and new bridges, and the disturbance caused by the load will accelerate the generation of longitudinal cracks between the joints of the old and new bridges. At present, the form of forming steel expansion joints is generally used, so that there may be a sudden change in height difference at the longitudinal cracks, which may cause traffic safety hazards; and because...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E01D19/10
Inventor 周如明
Owner 上海申继交通科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap