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Regenerated micro-powder activation method

A technology of regenerated micropowder and activation method, which is applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., to achieve the effects of improving compressive strength and flexural strength, improving utilization value, and solving effective comprehensive utilization

Inactive Publication Date: 2021-08-10
JINHUA VOCATIONAL TECH COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for activating regenerated micropowder to at least solve the problem of how to activate and reuse the regenerated micropowder produced in the recycling process of construction waste in the prior art

Method used

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Experimental program
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Effect test

Embodiment 1

[0027] Embodiment 1: a kind of regeneration micropowder activation method comprises the following steps:

[0028] (1) Material selection: waste concrete and waste fired bricks recovered from construction sites are selected as raw materials for regenerated micropowder, and the waste concrete and waste fired bricks are processed separately;

[0029] The strength of concrete is measured by a universal pressure testing machine, and concrete blocks with a strength grade of C25 or higher and an age of more than one year are selected;

[0030] (2) Create an isolation area: select the construction area, erect an isolation board to close the construction area, and install dust removal facilities to create a construction environment. The isolation board is made of color steel plate, which has strong corrosion resistance and anti-aging ability, which is more conducive to long-term use and prevents dust from being raised Diffusion into the atmosphere to form smog;

[0031] (3) Primary cr...

Embodiment 2

[0038] Embodiment 2: a kind of regeneration micropowder activation method comprises the following steps:

[0039] (1) Material selection: waste concrete and waste fired bricks recovered from construction sites are selected as raw materials for regenerated micropowder, and the waste concrete and waste fired bricks are processed separately;

[0040] The strength of concrete is measured by a universal pressure testing machine, and concrete blocks with a strength grade of C25 or higher and an age of more than one year are selected;

[0041] (2) Create an isolation area: select the construction area, erect an isolation board to close the construction area, and install dust removal facilities to create a construction environment. The isolation board is made of color steel plate, which has strong corrosion resistance and anti-aging ability, which is more conducive to long-term use and prevents dust from being raised Diffusion into the atmosphere to form smog;

[0042] (3) Primary cr...

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Abstract

The invention discloses a regenerated micro-powder activation method. The method comprises the following steps: (1) selecting materials: selecting waste concrete and waste sintered bricks recovered from a construction site as regenerated micro-powder raw materials, wherein the waste concrete and the waste sintered bricks being processed separately; (2) creating an isolation area: selecting a construction area, erecting an isolation plate to seal the construction area, and installing a dust removal facility to create a construction environment; (3) performing primary crushing: performing primary crushing on the regenerated micro-powder raw material through a universal crusher; and (4) screening: screening the crushed regenerated micro-powder raw material to separate small fragments with the diameter of less than 40 mm, and taking powder with the diameter of less than 0.16 mm as initial regenerated micro-powder. The regenerated micro-powder can be collected to the maximum extent, the regenerated micro-powder is prevented from diffusing in air to form haze to pollute the atmosphere, and recycling is achieved; and the regenerated micro powder can be activated through the exciting agent and can be prepared into regenerated micro powder concrete and set cement, so the building waste is effectively and comprehensively utilized, and environmental hazards are relieved.

Description

technical field [0001] The invention relates to the technical field of solid waste recycling, in particular to a method for activating regenerated micropowder. Background technique [0002] At present, construction waste is mainly landfilled and dumped, which not only occupies land, pollutes the environment, but also wastes resources. How to deal with such a huge amount of construction waste is a key issue in promoting energy conservation and emission reduction and the sustainable development of the construction industry, and it is also a severe challenge faced by all countries in the world. The utilization of solid waste resources is a major strategic requirement for national energy conservation, environmental protection and sustainable economic development. Construction waste is mainly composed of massive materials such as waste concrete and clay bricks; [0003] At present, the technology for preparing recycled coarse aggregate concrete from construction waste is relati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B20/02C04B18/16
CPCC04B20/023C04B20/026C04B18/16Y02W30/91
Inventor 郑朝灿刘智武李晓珍楼聪唐晶
Owner JINHUA VOCATIONAL TECH COLLEGE
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