Composite glass fiber reinforced plastic waste lightweight high-strength ceramsite and preparation method thereof

A technology of high-strength ceramsite and waste, which is applied in the field of composite FRP waste light-weight high-strength ceramsite and its preparation, can solve the problems of insufficient comprehensive utilization capacity of FRP waste, and achieve suitable large-scale industrial promotion, low calcination temperature, The effect of uniform hole formation

Active Publication Date: 2018-08-24
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at technical problems such as insufficient comprehensive utilization capacity of FRP waste in the prior art, the present invention provides a method for preparing ceramsite by using FRP waste, utilizing the existing ceramsite roasting kiln equipment, and realizing refractory FRP waste after process improvement. resource availability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for preparing composite fiberglass waste light-weight high-strength ceramsite, comprising the following steps:

[0022] (1) Accurately weigh 35% of fly ash, 5% of alkali slag, 38% of glass fiber reinforced plastic waste and 22% of sand and soil according to the composition ratio, and the water-solid ratio is 0.2. Accurately weighed fly ash, alkali slag, FRP waste and sand are put into the mixer and mixed evenly to obtain the composite solid waste light weight high-strength ceramsite basic mixture;

[0023] (2) Perform granulation treatment on the composite solid waste light-weight high-strength ceramsite base mixture to make spherical particles with a diameter of 5-20 mm to obtain a ceramsite green body;

[0024] (3) Place the obtained composite solid waste light-weight high-strength ceramsite green body in a drying equipment at 105°C to dry;

[0025] (4) Sinter the composite solid waste light-weight high-strength ceramsite green body obtained in the step (3)....

Embodiment 2

[0028] A method for preparing composite fiberglass waste light-weight high-strength ceramsite, comprising the following steps:

[0029] (1) Accurately weigh 35% of fly ash, 5% of alkali slag, 38% of fiberglass waste and 22% of sand and soil according to the composition ratio, and the water-solid ratio is 0.22. Accurately weighed fly ash, alkali slag, FRP waste and sand are put into the mixer and mixed evenly to obtain the composite solid waste light weight high-strength ceramsite basic mixture;

[0030] (2) Perform granulation treatment on the composite solid waste light-weight high-strength ceramsite base mixture to make spherical particles with a diameter of 5-20 mm to obtain a ceramsite green body;

[0031] (3) Place the obtained composite solid waste light-weight high-strength ceramsite green body in a drying equipment at 105°C to dry;

[0032] (4) Sinter the composite solid waste light-weight high-strength ceramsite green body obtained in the step (3). The firing system ...

Embodiment 3

[0035] A method for preparing composite fiberglass waste light-weight high-strength ceramsite, comprising the following steps:

[0036] (1) Accurately weigh 33% of fly ash, 7% of alkali slag, 38% of FRP waste and 22% of sand and soil according to the composition ratio, and the water-solid ratio is 0.22. Accurately weighed fly ash, alkali slag, FRP waste and sand are put into the mixer and mixed evenly to obtain the composite solid waste light weight high-strength ceramsite basic mixture;

[0037] (2) Perform granulation treatment on the composite solid waste light-weight high-strength ceramsite base mixture to make spherical particles with a diameter of 5-20 mm to obtain a ceramsite green body;

[0038] (3) Place the obtained composite solid waste light-weight high-strength ceramsite green body in a drying equipment at 105°C to dry;

[0039] (4) Sinter the composite solid waste light-weight high-strength ceramsite green body obtained in the step (3). The firing system is as f...

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Abstract

The invention provides a composite glass fiber reinforced plastic waste lightweight high-strength ceramsite and a preparation method thereof. The composite glass fiber reinforced plastic waste lightweight high-strength ceramsite is mainly prepared from the following raw materials in percentages by mass: 36-42% of glass fiber reinforced plastic wastes, 32-40% of flyash, 0-8% of alkali residues and18-24% of sandy soil, wherein water is added according to the water-solid ratio (taking the masses of all solids as a reference) being 0.2-0.3. The preparation method comprises the following steps: accurately weighing the glass fiber reinforced plastic wastes, the flyash, the alkali residues, the sandy soil and the water according to the proportion of the raw materials and uniformly mixing the rawmaterials to form a uniform basic admixture; and carrying out pelleting and forming by an artificial method to obtain ceramsite raw meal nodules, and firing the ceramisite raw meal nodules to obtainthe composite glass fiber reinforced plastic waste lightweight high-strength ceramsite. The lightweight high-strength ceramsite is prepared by taking the glass fiber reinforced plastic wastes as a main gas forming agent, and is applied to the fields of lightweight concrete wall materials, lightweight concrete tube materials and the like, glass fiber reinforced plastic waste resources can be reutilized, furthermore, environmental pollution can be relieved, and the economic benefit and the environment benefit are remarkable.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of solid waste in the FRP industry, and in particular relates to a composite FRP waste light-weight high-strength ceramsite and a preparation method thereof. Background technique [0002] At present, the total annual output of FRP products in my country has reached 250,000 tons. Since the service life of FRP products is generally 20 to 25 years, the amount of FRP waste accounts for 40% of the total output of FRP products. FRP products have excellent corrosion resistance and chemical resistance, so they are difficult to be degraded under natural conditions and will cause serious pollution to the environment. Therefore, the treatment of FRP waste is urgent. [0003] The traditional methods of dealing with FRP waste can be divided into landfill, incineration, chemical treatment and material recovery. The method of burying is too large and pollutes the land seriously; incineration can us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/06C04B33/135C04B33/132C04B33/13C04B33/04
CPCC04B33/04C04B33/13C04B33/132C04B33/1352C04B38/009C04B38/067C04B2235/6562C04B2235/6567C04B2235/661C04B2235/77C04B2235/95C04B2235/96C04B38/0067Y02P40/60
Inventor 胡晨光白瑞英贾援宋建华杨立荣刘刚宋方园安宇坤姚少巍封孝信
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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