Unlock instant, AI-driven research and patent intelligence for your innovation.

Evaluation and process optimization method of physical strengthening of recycled aggregates from construction waste

A technology for recycled aggregates and construction waste, applied in solid waste management, sustainable waste treatment, image enhancement, etc., can solve the problem that there is no accurate and systematic optimization method for aggregate physical strengthening methods, and the inability to comprehensively and accurately evaluate the shape of aggregates characteristics and other issues, to achieve the effect of improving comprehensive utilization, saving natural resources, and improving application fields

Inactive Publication Date: 2021-02-26
CHANGAN UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the defects and deficiencies of the existing preparation technology, the object of the present invention is an evaluation and process optimization method for the physical strengthening of recycled aggregates from construction waste, so as to solve the problem that the existing evaluation methods cannot comprehensively and accurately evaluate the shape characteristics of the aggregates. And there is no accurate and systematic optimization method for the physical strengthening method of aggregate

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
  • Evaluation and process optimization method of physical strengthening of recycled aggregates from construction waste
  • Evaluation and process optimization method of physical strengthening of recycled aggregates from construction waste
  • Evaluation and process optimization method of physical strengthening of recycled aggregates from construction waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] This example provides an evaluation method for the physical strengthening of recycled construction waste aggregates, which takes the processed construction waste recycled aggregates with a particle size range of 20-30 mm as the object for processing. Pick 50 bricks, concrete, and mortar particles respectively. The three types of test objects were used respectively, and the three types of particles were coated with high-reflectivity high-polymer slurry. The high-polymer type used was C03-1 white alkyd blending paint, and the particle size was less than 15 μm. After comparison, it is found that the method of using high polymer slurry can significantly improve the gray level difference between the edge of the aggregate and the background.

[0073] Mix the coated aggregate with the recycled construction waste aggregate to 1250±25g, put it into a horizontal rotary grinder, set the number of rotations, and pick out the white recycled aggregate after reaching the number of rot...

Embodiment 2

[0080] This embodiment provides a process optimization method for the physical strengthening of recycled aggregates from construction waste, wherein the aggregate strengthening process is the same as in Example 1, and after Example 1, the acicular rate and the white aggregate under the number of rotations are obtained. Roundness, then put the white aggregate into the drum again, repeat the steps in Example 1, change the number of rotations of the rotary grinder during each repetition, and finally get the needle-shaped white aggregate under different rotations rate and roundness;

[0081] Such as figure 2 , image 3 and Figure 4 The needle-like rate N and roundness R of the coated aggregates of concrete, mortar, and brick particles after 0-rotation, 20-rotation, 70-rotation, 170-rotation, and 370-rotation strengthening are arranged according to the order of data distribution. The improvement effect of the shape characteristic index, the economical selection and the appropr...

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
Circularityaaaaaaaaaa
Login to View More

Abstract

The invention discloses an evaluation and process optimization method for physical strengthening of construction waste recycled aggregate. The method comprises the steps that the surface of the construction waste recycled aggregate is wrapped in a high-reflectivity material to form white aggregate; the white aggregate and aggregate not wrapped in the high-reflectivity material are ground together, and the white aggregate is picked out after grinding is completed; an image of the white aggregate is acquired; the acicular rate N and roundness R of each piece of white aggregate in the image are calculated; and grinding is repeated to obtain the acicular rate and roundness of the white aggregate under different rotation times. Through the method, the acicular rate and roundness of the recycled aggregate obtained after shape and characteristic strengthening can be measured accurately and quickly, a construction waste recycled aggregate strengthening process can be optimized, a quantitative basis is provided for design of construction waste recycled aggregate shape and characteristic strengthening equipment and evaluation of the recycled aggregate, and the method is beneficial for expanding application fields of the construction waste recycled aggregate in road engineering, increasing the comprehensive utilization rate, saving natural resources and protecting the environment.

Description

technical field [0001] The invention belongs to the field of resource utilization of construction waste, and in particular relates to an evaluation and process optimization method for physical strengthening of recycled aggregate of construction waste. Background technique [0002] Construction waste refers to the general term for non-engineering materials generated directly or indirectly during the process of project construction and demolition. The main components include: bricks, concrete, mortar, muck, steel wire, plastic, textiles, wood chips, etc. . With the processing of my country's economic development and urbanization process, the total amount of construction waste generated by urban infrastructure construction and highway reconstruction and expansion is increasing day by day, seriously affecting the urban appearance and environment. On the other hand, the demand for sand and gravel materials in urban infrastructure construction, roads, railways and other engineeri...

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): G06T7/00G06T7/60G06T7/13C04B18/16
CPCC04B18/167G06T7/0004G06T7/60G06T2207/30108G06T7/13Y02W30/91
Inventor 韩森薛雪徐东韩霄胡魁彭标马英新徐鸥明赵宝俊尚为公陈德刘亚敏
Owner CHANGAN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com