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A kind of concrete recycling process and concrete formula

A concrete recycling and concrete technology, which is applied in the field of concrete production, can solve the problems of affecting the singleness of aggregates in recycled concrete, the complex composition of waste concrete, and affecting the structural strength of recycled concrete.

Active Publication Date: 2019-11-12
国泷集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For example, the Chinese patent application publication number "CN103626413A" discloses a process for the preparation of recycled concrete aggregates, by crushing waste concrete and using it again as aggregates; since concrete is not only added to cement, Sand and aggregate, etc., and some concrete admixtures, such as rust inhibitors, pumping agents, air-entraining agents, etc. In addition, some low-density building materials and stucco coatings will be mixed in the concrete that has been used. Such as clay bricks, hardened gypsum, paint, etc., resulting in complex components in waste concrete, affecting the singleness of aggregates in recycled concrete, and affecting the structural strength of recycled concrete

Method used

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  • A kind of concrete recycling process and concrete formula
  • A kind of concrete recycling process and concrete formula
  • A kind of concrete recycling process and concrete formula

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Such as figure 1 As shown, the waste concrete is hammered to make it broken into blocks, the diameter of the concrete block is less than 50mm, the steel bars in the concrete are stripped and removed, and the damaged concrete blocks are collected; the concrete blocks are put into the clear water pool Stir and wash to remove the impurities floating above the clear water pool, remove the concrete blocks that have sunk into the bottom of the clear water pool and put them in the sun to dry until there is no obvious water stain on the surface; put the dried concrete into the acid pool for further cleaning Wash for 5 minutes, and place a sufficient amount of acetic acid aqueous solution in the acidic pool; then remove the concrete block soaked in the acidic pool and put it into the alkaline pool for 10 minutes, where acetic acid and sodium acetate are placed; then Take out the concrete block soaked from the alkaline pool and put it into the organic solvent pool for filtration ...

Embodiment 2

[0041] Such as figure 1 As shown, the waste concrete is hammered to make it broken into blocks, the diameter of the concrete block is less than 50mm, the steel bars in the concrete are stripped and removed, and the damaged concrete blocks are collected; the concrete blocks are put into the clear water tank for Stir and wash, remove the impurities floating above the clear water pool, remove the concrete blocks that have sunk into the bottom of the clear water pool, and put them in the sun to dry until there is no obvious water stain on the surface; put the dried concrete into the acid pool for washing After washing for 10 minutes, a sufficient amount of acetic acid aqueous solution is placed in the acidic pool; after that, the concrete blocks soaked in the acidic pool are taken out and put into the alkaline pool for 15 minutes, where acetic acid and sodium acetate are placed; The concrete blocks soaked in the alkaline pool are taken out and put into the organic solvent pool for...

Embodiment 3

[0043] Such as figure 1 As shown, the waste concrete is hammered to make it broken into blocks, the diameter of the concrete block is less than 50mm, the steel bars in the concrete are stripped and removed, and the damaged concrete blocks are collected; the concrete blocks are put into the clear water tank for Stir and wash, remove the impurities floating above the clear water pool, remove the concrete blocks that have sunk into the bottom of the clear water pool, and put them in the sun to dry until there is no obvious water stain on the surface; put the dried concrete into the acid pool for washing Wash for 8 minutes, and there is a sufficient amount of acetic acid aqueous solution in the acidic pool; then remove the concrete block soaked in the acidic pool and put it into the alkaline pool for 13 minutes, where acetic acid and sodium acetate are placed; Take out the concrete block soaked in the alkaline pool and put it into the organic solvent pool for filtration and washin...

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Abstract

The invention relates to a concrete regeneration process and a concrete formula. The process comprises the following steps: step 1, pretreatment; step 2, impurity filtration; step 3, impurity adsorption; step 4, screening treatment; step 5, crushing treatment; and step 6, drying and collection. Various raw materials adopted in the scheme meet an environmentally-friendly concept, and in the raw materials, materials such as mineral powder, fly ash and mineral admixture are waste materials, and the process belongs to waste utilization and reasonable application of resources; recycled aggregate has the characteristics of high porosity, large water absorption rate and the like, and therefore the recycled concrete is a porous material; and human walking ways do not have high requirements on load-bearing capacity, and therefore the recycled concrete can be used through casting molding.

Description

technical field [0001] The invention relates to a concrete production method, in particular to a concrete recycling process and concrete formula. Background technique [0002] In recent years, the world's construction industry has entered a stage of rapid development. As the largest man-made material, the occupation of natural resources and the negative impact on the environment have also triggered discussions on sustainable development issues; The amount of waste concrete and waste concrete discharged from concrete factories and prefabricated component factories is huge. At the same time, it is expected that the discharge of waste concrete will increase with the acceleration of the socialization process worldwide, and the demolition and reconstruction of original buildings will increase day by day. The traditional treatment method of waste concrete is mainly to transport it to the suburbs for stacking or landfill, which not only costs a lot of freight, causes secondary pol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B20/02C04B28/00
Inventor 潘三才
Owner 国泷集团有限公司
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