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Full cycle recycling method of urban construction waste and the prepared machine-made sand, concrete and blocks thereof

A technology of concrete blocks and construction waste, which is applied in the field of building materials, can solve problems such as pollution, large consumption of land expropriation fees, construction funds for garbage removal and transportation, and dust flying environment, so as to solve the shortage of sand, increase social wealth, The effect of reducing pollution

Active Publication Date: 2021-01-26
聂海波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vast majority of construction waste is transported to the suburbs or villages by the construction unit without any treatment, and is stacked in the open air or landfilled, which consumes a lot of construction expenses such as land acquisition fees, garbage removal and transportation fees, and at the same time, during the process of clearing, transporting and stacking Problems such as the scattering of dust and flying dust and sand have caused serious environmental pollution.

Method used

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  • Full cycle recycling method of urban construction waste and the prepared machine-made sand, concrete and blocks thereof
  • Full cycle recycling method of urban construction waste and the prepared machine-made sand, concrete and blocks thereof

Examples

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preparation example Construction

[0033] In addition, the applicant applies the building material provided by the present invention to concrete; specifically, the raw material components of the concrete include: 780-860 parts by weight of building materials, 200-340 parts by weight of cement, 1060-1100 parts by weight of stone 70-90 parts by weight of fly ash, 60-90 parts by weight of mineral powder, 6-11 parts by weight of admixture and 90-100 parts by weight of water. Among them, the preparation method of concrete includes the following steps: S301: weighing each raw material component in proportion, and then transporting building materials, cement, fly ash, mineral powder and admixtures to a mixer for stirring; S302: mixing in the product obtained in S301 Add the remaining raw material components and continue mixing to finally get concrete.

[0034] Preferably, the raw material components of the concrete further include: 10-30 parts by weight of tourmaline powder, 5-15 parts by weight of diatomite, 3-8 part...

Embodiment 1

[0037] The invention provides a method for recycling construction waste, comprising the following steps:

[0038] S101: Process the construction waste with an impact crusher, specifically including: S201: Send the construction waste into a fine-toothed jaw crusher for coarse crushing, so that the particle size of the output is less than or equal to 80mm, and then remove it with a permanent magnet iron remover Iron filings in the discharged material; S202: Transport the material after removal of iron filings to the cone crusher for further crushing, and the fan blows the material continuously during the conveying process to clean out the light impurities in the material, and then crush the pellets Materials with a diameter less than or equal to 10mm are sent to the vibrating screen by the belt conveyor for screening; S203: The materials obtained in S202 are transported to the impact crusher through the bucket elevator, and then enter the mold-controlled screen through the vibrat...

Embodiment 2

[0044] The invention provides a method for recycling construction waste, comprising the following steps:

[0045] S101: Process the construction waste with an impact crusher, specifically including: S201: Send the construction waste into a fine-toothed jaw crusher for coarse crushing, so that the particle size of the output is less than or equal to 80mm, and then remove it with a permanent magnet iron remover Iron filings in the discharged material; S202: Transport the material after removal of iron filings to the cone crusher for further crushing, and the fan blows the material continuously during the conveying process to clean out the light impurities in the material, and then crush the pellets Materials with a diameter less than or equal to 10mm are sent to the vibrating screen by the belt conveyor for screening; S203: The materials obtained in S202 are transported to the impact crusher through the bucket elevator, and then enter the mold-controlled screen through the vibrat...

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Abstract

The invention relates to a full-cycle recycling method of urban construction waste and the prepared machine-made sand, concrete and blocks thereof. The method includes steps: S101: crushing the construction waste to obtain machine-made sand; S102: classifying the obtained materials to obtain good materials and waste materials; S103: uniformly mixing the good materials with cement to produce commercial concrete; S104: making commercial concrete Concrete is used for the production of concrete prefabricated parts and / or concrete blocks by molding; S105: Use the above products as building materials, and recycle construction waste after the life of the building materials ends. The method provided by the invention realizes the reuse of resources such as urban construction waste, cave slag, river dredging pebbles, etc., and the obtained machine-made sand can replace natural sand, which effectively realizes turning waste into treasure, solves the problem of insufficient sand, and reprocesses There are a lot of tailings and pebbles; pollution is reduced, rivers are cleaned up, and social wealth is increased.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a full-cycle recycling method of urban construction waste and the prepared machine-made sand, concrete and blocks thereof. Background technique [0002] As we all know, construction waste refers to the mud, slag, mud and other wastes generated during the construction, demolition, repair of various buildings and structures by construction units or individuals, and the process of residents' house decoration. According to statistics, the amount of construction waste in my country has accounted for 30% to 40% of the total amount of urban waste. Calculated on the basis of 500-600 tons / 10,000 square meters, by 2020, my country will add about 30 billion square meters of new construction area, and the newly generated construction waste will be a shocking number. However, the vast majority of construction waste is transported to the suburbs or villages by the construction unit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B18/16C04B20/02C04B28/00
CPCC04B18/16C04B20/02C04B20/026C04B28/00C04B2111/00017C04B2201/32C04B2201/50C04B14/02C04B18/08Y02W30/91
Inventor 应天邦
Owner 聂海波
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