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

Desulfurization ash-fly ash self-activated pavement base coarse material

A pavement base material and fly ash technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of ecological environment damage around power plants and steel plants, restricting the development of the industry, etc., and achieve excellent water stability High efficiency, resource saving, and high waste rate

Inactive Publication Date: 2016-03-30
WUHAN UNIV OF TECH
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For coal-fired thermal power plants and steel mills with a daily output of hundreds of tons of desulfurization ash, if effective and reasonable desulfurization ash treatment methods cannot be adopted, it will not only cause damage to the power plant steel mills and the surrounding ecological environment, but also bring social consequences. A huge economic and social burden, seriously restricting the development of the industry

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
  • Desulfurization ash-fly ash self-activated pavement base coarse material
  • Desulfurization ash-fly ash self-activated pavement base coarse material
  • Desulfurization ash-fly ash self-activated pavement base coarse material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The self-activating pavement base was prepared by using Wuhan desulfurization ash and red high-speed railway fly ash from Guizhou: Weighed the desulfurization ash and Guizhou high-speed railway fly ash according to the design components in Table 1, and carried out a compaction test to determine the maximum amount of the mixture. Optimum moisture content and maximum dry density, according to the controlled degree of compaction molding specimens and determine its unconfined compressive strength. Change the content of desulfurization ash, carry out the unconfined compressive strength test according to the degree of compaction of 95%, the corresponding 7-day unconfined compressive strength, coefficient of variation and unconfined compressive strength under 95% strength guarantee rate The specific results are shown in Table 1.

[0037] From the performance indicators in Table 1, it can be seen that when the content of desulfurization ash is changed, the strength of the desul...

Embodiment 2

[0039] Use Wuhan desulfurization ash and Wuhan brown high-calcium fly ash to prepare self-activating pavement base: desulfurization ash and Wuhan fly ash are weighed according to the design components in Table 2, and compaction tests are carried out to determine the best mixture. Moisture content and maximum dry density, according to the controlled degree of compaction molding test pieces and determine their unconfined compressive strength. The unconfined compressive strength test was carried out according to the degree of compaction of 95% by changing the content of desulfurized ash. The results are shown in Table 2.

[0040] From the performance indicators in Table 2, it can be seen that when the content of desulfurization ash is changed, the strength of the desulfurization ash-Wuhan inferior high-calcium fly ash self-activating pavement base increases with the increase of desulfurization ash content; The maximum dry density decreased with the increase of desulfurization as...

Embodiment 3

[0042] Use Wuhan desulfurization ash and Guizhou brown high-calcium fly ash to prepare self-activating pavement base: desulfurization ash and Guizhou fly ash are weighed according to the design components in Table 3, and the compaction test is carried out to determine the best mixture. Moisture content and maximum dry density, according to the controlled degree of compaction molding test pieces and determine their unconfined compressive strength. The unconfined compressive strength test was carried out according to the degree of compaction of 95% by changing the content of desulfurized ash. The results are shown in Table 3.

[0043] From the performance indicators in Table 3, it can be seen that when the content of desulfurization ash is changed, the strength of the desulfurization ash-Guizhou high-calcium fly ash self-activated pavement base course increases with the increase of desulfurization ash content; The dry density decreased with the increase of desulfurization ash c...

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
compressive strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a desulfurization ash-fly ash self-activated pavement base coarse material. The material comprises, by mass, 88-97% of desulfurization ash and 3-12% of fly ash. A large amount of a desulfurization ash industrial byproduct is used in the invention, so the land and resources and saved, environmental protection is facilitated, the cost is reduced, and the material is simple to construct, and is suitable for building general roads and high-grade road bases and / or subbases.

Description

technical field [0001] The invention relates to a pavement base material, in particular to a desulfurized ash-fly ash self-activating pavement base material. Background technique [0002] In recent years, the state has increased the SOE of major coal-fired enterprises 2 Emission control efforts, for SO 2 Emission control puts forward higher and higher requirements, but in most enterprises SO 2 While the emission is controlled, the new problem of increasing the emission of desulfurization ash is brought. The main source of desulfurization ash is coal-fired thermal power plants or steel mills. The industrial waste obtained from desulfurization of flue gas by dry or semi-dry calcium-based desulfurizers using different desulfurization processes currently lacks a reasonable way of utilization. Most of them are still stacked in the open air, which not only takes up a lot of land resources, but also seriously restricts the coordination of economic growth and environment. For co...

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 Applications(China)
IPC IPC(8): C04B28/00C04B18/06
CPCC04B28/00C04B2111/00017C04B2111/00051C04B2111/0075C04B18/062C04B7/34Y02W30/91
Inventor 赵青林周孔金
Owner WUHAN UNIV OF TECH
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