Method for producing recycled aggregates by taking sorted decoration wastes as raw materials

A technology for recycled aggregate and decoration waste, which is used in the production of recycled aggregate and garbage disposal. It can solve the problems of high crushing value, low strength, and large difference in water absorption, and achieve the effect of improving the water absorption index.

Inactive Publication Date: 2019-12-20
SHANGHAI MUNICIPAL PLANNING & DESIGN INST CO LTD +1
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  • Claims
  • Application Information

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Problems solved by technology

[0006] "No. 1 aggregate" and "No. 2 aggregate" in the above table, because the main components are broken bricks and mortar, low strength, high test crushing value, large difference in water absorption, and inconsistent apparent color, Difficult to use directly as raw materials in engineering or other aspects

Method used

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  • Method for producing recycled aggregates by taking sorted decoration wastes as raw materials
  • Method for producing recycled aggregates by taking sorted decoration wastes as raw materials

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Embodiment Construction

[0022] A method for producing regenerated aggregates from sorted decoration wastes. After crushing, the surface of the aggregates with a particle size of 5-15mm and 15-30mm is wrapped with a layer of configured cement paste and fully cured. Finally, a lightweight recycled aggregate is formed. The specific steps are:

[0023] 1. Use the sorted decoration waste as raw material, and soak the crushed aggregate with a particle size of 5-15mm and 15-30mm in water to make it fully absorb water;

[0024] 2. Stir and mix R-type ordinary Portland cement and dry fly ash at a weight ratio of 1:1-2 to obtain powder;

[0025] 3. Put the above-mentioned water-soaked aggregate and the prepared powder into the rotating ball forming machine continuously at a weight ratio of 1:0.1-0.15. Since the aggregate contains moisture, the prepared powder can be absorbed on the surface. The body material forms an adhesive layer, and the strength of the adhesive layer is enhanced during the rotation of th...

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Abstract

The invention discloses a method for producing recycled aggregates by taking sorted decoration wastes as raw materials. The method is characterized by comprising the steps: wrapping outer surfaces ofaggregates having the particle sizes being 5-15 mm and 15-30 mm after being crushed with a layer of prepared cement mortar, and carrying out sufficient curing to form lightweight recycled aggregates.The sorted decoration wastes treated by using the method are uniformly wrapped with a layer of cement mortar, so that various performances are improved, and particularly, the improvement on the waterabsorption index is embodied in the consistency of water absorption. The recycled aggregates can be used as material substitutes in various fields and aspects. Specifically speaking, the recycled aggregates can be used as lightweight concrete aggregates and raw materials of wall boards or can be used as water diversion materials for a roof garden to substitute natural stone with the same particlesize; and after a color pigment is added for wrapping, the recycled aggregates can be used as covering materials for landscape planting surfaces, not only can substitute lightweight ceramsites, but also can adjust the color of stone.

Description

technical field [0001] The invention belongs to the technical field of garbage disposal, especially the treatment of decoration garbage, and is a method for producing regenerated aggregate by using sorted decoration garbage as raw materials. Background technique [0002] With the development of the economy and the advancement of science and technology, there are more and more garbage from residents' decoration and decoration. This kind of garbage refers to the garbage generated due to decoration. Unlike domestic garbage, decoration and decoration garbage are mostly crushed cement, useless wood strips, blocks, etc., which generally have no recycling value. In terms of garbage disposal, it is also different from domestic garbage. It is also different from the disposal of construction waste. Construction waste refers to the dregs, spoils, and waste materials generated during the construction, laying, demolition, and repair of various buildings, structures, and pipe networks by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B20/10C04B18/16
CPCC04B20/1077C04B20/1055C04B18/16Y02W30/91
Inventor 过震文宰正浩徐斌何昌轩叶琪王辉
Owner SHANGHAI MUNICIPAL PLANNING & DESIGN INST CO LTD
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