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Recycling method of concrete waste material and recycled concrete

A technology of recycled concrete and concrete, applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of waste of natural resources, high freight costs, secondary environmental pollution, etc., and achieve good stability and strength , to avoid the effect of wasting

Inactive Publication Date: 2020-09-04
宁波新力建材科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] However, 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 pollution to the environment, but also takes up a lot of valuable land resources, and simply discarding it is also harmful to natural resources. Great waste

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  • Recycling method of concrete waste material and recycled concrete
  • Recycling method of concrete waste material and recycled concrete
  • Recycling method of concrete waste material and recycled concrete

Examples

Experimental program
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Embodiment 1

[0045] refer to figure 1 , a method for recycling concrete waste disclosed in the present application, comprising the following steps:

[0046] S1: Humidity adjustment and freezing; add water to the waste concrete material and waste ceramic material to adjust the humidity respectively. When adding water to adjust the humidity, control the water content to 10% of the total weight. After humidification, put the waste concrete material and waste ceramic material into the industrial freezer Carry out freezing and refrigeration, the freezing temperature is -20°C, and the freezing time is 75 minutes;

[0047] S2: Pre-crushing; use a crusher to crush the frozen waste concrete material and waste ceramic material separately, and control the particle size of the two to not exceed 40mm;

[0048] S3: Grinding and drying; put the frozen waste concrete material and waste ceramic material into a grinder for grinding, exhaust and dust on one side during grinding, and dry the ground waste con...

Embodiment 2-6

[0060] The difference from Example 1 is that the proportion of waste concrete material and waste ceramic material in the recycled coarse aggregate or recycled fine aggregate used to prepare recycled concrete is different, and the weight parts of each component in recycled concrete are different. The specific values ​​are shown in the table 1.

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Abstract

The invention discloses a recycling method of a concrete waste material and recycled concrete, and belongs to the technical field of concrete preparation. According to the technical key points, the recycling method of the concrete waste material comprises the following steps: S1, humidifying and freezing; S2, pre-crushing; respectively crushing the frozen waste concrete material and the frozen waste ceramic material; S3, grinding and drying; S4, screening and mixing; respectively screening the dried waste concrete material and waste ceramic material, mixing the waste concrete material with theparticle size of more than 4mm with the waste ceramic material to serve as recycled coarse aggregate, and mixing the waste concrete material with the particle size of less than 4mm with the waste ceramic material to serve as recycled fine aggregate; and S5, preparing concrete. According to the scheme, the waste concrete material and the waste ceramic material are used for preparing the concrete so that the waste gas concrete material and the waste ceramic material are recycled, the environmental problem is effectively solved, and natural resources are prevented from being wasted.

Description

technical field [0001] The present application relates to the technical field of concrete preparation, in particular to a method for recycling concrete waste and recycled concrete. 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 of concrete have also triggered discussions on sustainable development. The amount of waste concrete demolished every year in the world, waste concrete produced by new buildings, and waste concrete discharged from concrete factories and prefabricated construction plants is huge. At the same time, it is expected that the amount of waste concrete discharged in the future will increase with the acceleration of the urbanization process worldwide, and the demolition and reconstruction of original buildings will increase day by day. [0003] However, the traditional pro...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B20/02C04B20/04C04B18/16
CPCC04B18/16C04B18/165C04B20/02C04B20/026C04B20/04C04B28/00C04B2201/50C04B18/08C04B18/141C04B18/146C04B22/002C04B2103/302Y02W30/91
Inventor 陈朝辉李勤王波边松磊张致峰顾腾
Owner 宁波新力建材科技有限公司
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