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

Regeneration method of waste concrete and modified recycled concrete

A technology for waste concrete and recycled concrete, applied in the field of concrete, can solve the problems of unpredictable concrete recovery effect, inability to reuse waste gas concrete, and increase in additional cost of recovery, so as to improve the added value of preparation and ensure the recycling rate. , the effect of improving the scope of application

Inactive Publication Date: 2020-12-25
武汉华强新型建筑材料有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing recycled concrete preparation equipment is costly and requires a lot of equipment, but the performance of the prepared concrete is not much different from that of traditional concrete, resulting in some additional costs for recycling. Utilization, so that the recycling effect of the concrete manufacturing process cannot meet expectations

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
  • Regeneration method of waste concrete and modified recycled concrete
  • Regeneration method of waste concrete and modified recycled concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In this example, a modified recycled concrete, including recycled aggregate, admixture, underwater non-dispersible agent, water and sand, recycled aggregate, admixture, underwater non-dispersible agent, water and sand The ratio between them is 4.5:3.4:1.1:0.2:0.8, and the recycled aggregate includes recycled coarse aggregate, recycled fine aggregate and fine powder.

[0028] The admixture is a gelling mineral admixture, wherein the gelling mineral admixture includes at least one admixture of slag, high-calcium ash and sulfur-fixing slag, and the underwater non-dispersant is the underwater non-dispersant FM Or underwater non-dispersible agent UM.

Embodiment 2

[0030] In this example, a modified recycled concrete, including recycled aggregate, admixture, underwater non-dispersible agent, water and sand, recycled aggregate, admixture, underwater non-dispersible agent, water and sand The ratio between them is 4.4:3.5:1.1:0.2:0.8, and the recycled aggregate includes recycled coarse aggregate, recycled fine aggregate and fine powder.

[0031] The admixture is a pozzolanic mineral admixture, the pozzolanic mineral admixture is at least one admixture of volcanic ash, fly ash, silica fume and diatomaceous earth, and the underwater non-dispersant is an underwater non-dispersant FM Or underwater non-dispersant UM.

Embodiment 3

[0033] In this example, a modified recycled concrete, including recycled aggregate, admixture, underwater non-dispersible agent, water and sand, recycled aggregate, admixture, underwater non-dispersible agent, water and sand The ratio between them is 4.3:3.6:1.1:0.2:0.8, and the recycled aggregate includes recycled coarse aggregate, recycled fine aggregate and fine powder.

[0034] The admixture is a gelling-volcanic ash mineral admixture, the gelling-volcanic ash mineral admixture is a mixture of volcanic ash, granulated blast furnace coal ash, mineral admixture and industrial waste slag fine powder, and the underwater non-dispersant is water Underwater non-dispersant FM or underwater non-dispersant UM.

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 discloses a regeneration method of waste concrete and modified recycled concrete, the modified recycled concrete comprises recycled aggregate, an admixture, an underwater non-dispersingagent, water and sandstone, and the regeneration method of the waste concrete comprises the following steps: S1, preparing classified concrete and aggregate, wherein in the waste concrete regenerationprocess, various components in waste concrete are digested through cooperative operation among multiple factories, bricks and tiles in the waste concrete are cleaned and can be repeatedly used, and the waste bricks, tiles and concrete are crushed, screened, graded and cleaned to serve as recycled aggregate to prepare low-grade recycled aggregate concrete. According to the method, all parts of thewaste concrete are classified and treated, different production and processing factories are matched to form an industrial chain, the recycling rate of the waste concrete is increased, meanwhile, theadditional value of concrete preparation is increased, mineral fine admixtures and underwater non-dispersing agents are added during modification, and the properties of the recycled concrete are improved.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a recycling method for waste concrete and modified recycled concrete. Background technique [0002] Recycled concrete means that waste concrete blocks are crushed, cleaned and graded, mixed with gradation in a certain proportion, partially or completely replaced by natural aggregates (mainly coarse aggregates) such as sand and gravel, and then added with cement, water, etc. new concrete. [0003] On the one hand, the amount of waste concrete is increasing rapidly; on the other hand, with the development of social economy and the increase of concrete consumption, resource depletion and environmental damage caused by mining sand and gravel aggregates have become the focus of attention. The contradiction between China's sustainable development and the aggregate crisis has become increasingly prominent. Therefore, if waste concrete can be recycled on site, crushed, cleaned and gra...

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): C04B20/02C04B18/16C10L5/44D21B1/04C03C1/02C04B28/00
CPCC03C1/002C04B18/16C04B20/026C04B28/00C04B28/021C10L5/442D21B1/04C04B18/141C04B18/04C04B2103/408C04B14/06C04B18/08Y02E50/10Y02E50/30Y02W30/91
Inventor 胡新军谢颉胡艳东马海军
Owner 武汉华强新型建筑材料有限公司
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