Stray current resistant concrete material and preparation method thereof

A stray current and concrete technology, applied in the field of concrete materials, can solve problems such as durability damage, reduction in the bearing capacity of reinforced concrete structures, corrosion of steel bars or concrete, etc., achieve good chemical corrosion resistance, reduce cement consumption, and high sulfate The effect of corrosion

Inactive Publication Date: 2019-04-05
DALIAN UNIV OF TECH
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in the investigation and analysis of the groundwater of Guangzhou Metro Line 3, it was found that the concentration of chloride ions in individual sections was as high as 7200mg/L,

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] Example 1

[0035] Take the following components according to the amount of concrete per cubic meter: cement 240kg, coarse aggregate 1025kg, fine aggregate 660kg, rubber powder 15kg, fly ash 150kg, spontaneous combustion coal gangue powder 30kg, glass powder 30kg, mixing water 180kg , Additive 2.0kg. Cement is P·I type 42.5 Portland cement; coarse aggregate is continuous graded crushed stone with a particle size of 5-30mm; fine aggregate is river sand with a fineness modulus of 2.3; rubber powder has a particle size of 80 mesh ; Fly ash is grade I fly ash; spontaneous combustion coal gangue powder particle size is 2000 mesh; glass powder particle size is 200 mesh; admixture is polycarboxylic acid superplasticizer.

[0036] The preparation steps are as follows:

[0037] Stir the coarse aggregate, fine aggregate and rubber powder together for 60s, then add cement, fly ash, spontaneous gangue powder and glass powder, continue to stir for 90s, add water reducing agent and water,...

Example Embodiment

[0039] Example 2

[0040] The following components are taken according to the amount of concrete per cubic meter: cement 440kg, coarse aggregate 1200kg, fine aggregate 740kg, rubber powder 20kg, fly ash 100kg, spontaneous combustion coal gangue powder 20kg, glass powder 70kg, mixing water 220kg , Additive 4.0kg. The cement is P·I type 42.5 Portland cement; the coarse aggregate is continuous graded crushed stone with a particle size of 5-30mm; the fine aggregate is river sand with a fineness modulus of 2.8; the rubber powder particle size is 150 mesh ; Fly ash is grade II fly ash; spontaneous combustion coal gangue powder particle size is 5000 mesh; glass powder particle size is 350 mesh; admixture is polycarboxylic acid superplasticizer.

[0041] The preparation steps are as follows:

[0042] Stir the coarse aggregate, fine aggregate and rubber powder together for 120s, then add cement, fly ash, spontaneous gangue powder and glass powder, continue to stir for 150s, then add water r...

Example Embodiment

[0044] Example 3

[0045] Take the following components according to the amount of concrete per cubic meter: cement 300kg, coarse aggregate 1100kg, fine aggregate 700kg, rubber powder 30kg, fly ash 125kg, spontaneous combustion coal gangue powder 15kg, glass powder 100kg, mixing water 200kg , Additive 3.0kg. Cement is P·I type 42.5 Portland cement; coarse aggregate is continuous graded crushed stone with a particle size of 5-30mm; fine aggregate is river sand with a fineness modulus of 2.6; rubber powder has a particle size of 100 mesh ; Fly ash is Grade I fly ash; spontaneous combustion coal gangue powder particle size is 3000 mesh; glass powder particle size is 300 mesh; admixture is polycarboxylic acid superplasticizer.

[0046] The preparation steps are as follows:

[0047] Stir the coarse aggregate, fine aggregate and rubber powder together for 100s, then add cement, fly ash, spontaneous gangue powder and glass powder, continue to stir for 120s, then add water reducing agent a...

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
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a stray current resistant concrete material and a preparation method thereof, and belongs to the field of civil engineering materials. The concrete material comprises, by weight per cubic meter of concrete, 240-440 parts of cement, 1000-1200 parts of coarse aggregate, 660-740 parts of fine aggregate, 15-30 parts of rubber powder, 100-150 parts of fly ash, 15-30 parts of spontaneous combustion coal gangue powder, 30-100 parts of glass powder, 180-220 parts of mixed water, and 2-4 parts of additives. The preparation method includes firstly, uniformly stirring the coarse aggregate, the fine aggregate and the rubber powder, adding the cement, the fly ash, the spontaneous combustion coal gangue powder and the glass powder, continuously stirring uniformly, adding a waterreducing agent and the water, and continuously stirring uniformly the mixture to obtain the stray current resistant concrete material; secondly, putting the material into a cube test mold, vibrating on a concrete vibrating table, and then maintaining and dismantling the mold. According to the method, the cost can be reduced; meanwhile, on the basis of ensuring the concrete strength grade, the anti-stray current has a better effect, so that the material has remarkable innovation significance and a potential engineering application prospect.

Description

technical field [0001] The invention belongs to the field of civil engineering materials and provides a stray current-resistant concrete material. Background technique [0002] With the continuous development of my country's economy and the steady advancement of urban construction, urban problems such as dense population and traffic congestion have become increasingly prominent. In order to solve the public transportation problems in large and medium-sized cities and promote the sustainable development of cities, it is imperative to develop urban rail transit systems. In the modern urban transportation system, underground railways and urban light rails not only relieve the pressure of ground transportation, but also bring convenience to the lives of urban residents due to their safety, fast and efficient transportation characteristics, which are not affected by weather conditions. At present, urban rail transit at home and abroad generally adopts a DC traction power supply ...

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): C04B28/04
CPCC04B28/04C04B18/22C04B18/08C04B18/12C04B14/22C04B14/02C04B14/06C04B2103/302
Inventor 王宝民李高年韩俊南蔡祥鹏
Owner DALIAN UNIV OF TECH
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