Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Black high-strength concrete pouring material for rapid repairing of city road inspection well

A high-strength concrete and pouring material technology is applied in the field of new pavement materials, which can solve the problems that concrete materials cannot meet the functional requirements of asphalt pavement inspection wells for quick repair, affect road aesthetics, and have a large black and white difference, and achieve good pavement application. effect, to prevent circumferential cracks or chipping, to improve the effect of early strength

Active Publication Date: 2015-01-07
WUHAN BRIDGE CONSTR GRP CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of using ordinary asphalt concrete and ordinary concrete mixed with quick repair agent cannot meet these requirements
(3) The existing concrete quick-repair materials seldom consider the color difference after road repair. When they are directly used for the quick repair of urban asphalt concrete pavement inspection wells, there will be a large gap between the post-poured concrete and the original asphalt concrete pavement. Poor black and white, leaving "patches", seriously affecting the aesthetics of the original road
Although different colored concretes have been developed at present, most of them are only used for decoration, not for concrete structural engineering that bears complex loads, and there is no report on the application of colored concrete to road inspection well damage repair projects.
[0005] In short, the existing concrete materials that can be used for quick repair of road slabs cannot meet the functional requirements of quick repair of urban road asphalt pavement inspection wells, and special pouring materials must be developed to solve the above problems

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
  • Black high-strength concrete pouring material for rapid repairing of city road inspection well
  • Black high-strength concrete pouring material for rapid repairing of city road inspection well
  • Black high-strength concrete pouring material for rapid repairing of city road inspection well

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1 (laboratory preparation):

[0045] A black high-strength concrete pouring material used for quick repair of urban road inspection wells, the laboratory preparation steps are as follows:

[0046] A. Raw material preparation: Leiante CA-50 aluminate cement; natural river sand with a fineness modulus of 3.0 (produced in Bahe, Hubei); limestone crushed stone with a particle size range of 5-10mm continuous grading (produced Hubei Hong’an); Wuhan Hansen Steel Fiber Co., Ltd. produces steel plate shearing steel fibers of the type SFB-20-60; sika’s ViscoCrete20HE polycarboxylate superplasticizer; water is tap water; iron black powder and There are no special requirements for silica fume. In this embodiment, Shuguang brand iron oxide black and Wuhan Xinbida silica fume are used.

[0047] B. Determination of the moisture content of the sand is carried out by drying. The moisture content of the stone is 0, and the moisture content of the sand is 1.2%.

[0048] C. We...

Embodiment 2

[0060] Embodiment 2 (on-site preparation):

[0061] A. Construction preparation: Clean up around the well circle of the inspection well on the pavement that needs to be poured.

[0062] B. Material preparation: use the same ratio and raw materials as the laboratory preparation method in Example 1 for construction, and each raw material can be used after passing the test. Take aggregates from different parts to retest the water content. The retested stone water content is 0, and the sand water content is 1.4%, and adjust the water consumption accordingly. According to the ratio, electronic platform scales are used to measure raw materials, and the amount of concrete is calculated according to the size of the well circumference. The calculated amount of concrete required for each well circumference is about 0.251m 3 , the concrete volume of a group of flexural specimens is 0.037m 3 , considering a certain affluence factor, increase the amount of concrete pouring material to 0....

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

PropertyMeasurementUnit
lengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technology field of novel material for road surface, and specifically discloses a black high-strength concrete pouring material for rapid repairing of city road inspection well. The pouring material is prepared by mixing following components according to a certain ratio: steel fiber, cement, coarse aggregate, fine aggregate, coloring agent and concrete admixtures. The pouring material has the characteristics of high early stage strength, good wear resistance and same color as that of asphalt concrete, has the advantages of available materials, convenient production process, low requirement on outer environment, and no need of rolling, is suitable for rapid repairing of small damages around the inspection wells in the city asphalt concrete road and realizes the function requirements of rapid traffic opening, beautiful remedy, and low secondary damage rate.

Description

technical field [0001] The invention relates to the technical field of new pavement materials, in particular to a black high-strength concrete pouring material used for quick repair of urban road inspection wells. The pouring material is suitable for rapid repair of damage around inspection wells on asphalt concrete pavement of urban roads. Background technique [0002] With the acceleration of urbanization and the rapid growth of urban traffic volume, frequent traffic loads have caused problems such as subsidence, rotten edges and damage on the pavement around the inspection wells of urban roads, which have seriously affected the use of urban roads. It takes a long time to occupy the normal traffic, aggravating the traffic congestion of urban roads, and the disease is easy to recur after the pavement around the well is repaired and re-operated. Frequent and repeated repairs have caused a waste of municipal infrastructure construction funds. [0003] For the maintenance of ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C04B14/48C04B22/06
Inventor 刘伟童永广朱明刚陈建斌吴立鹏王勇胡红胜范涛
Owner WUHAN BRIDGE CONSTR GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com