Phosphogypsum curb and preparation method thereof

A technology of phosphogypsum and dentures, which is applied in the field of phosphogypsum dentures and its preparation, can solve the problems of large amount of gel material used, long production cycle of dentures, and low compressive strength, so as to speed up hardening and reduce production Good effect of cost and pressure resistance

Inactive Publication Date: 2022-03-15
GUIZHOU ZHENGHE AERATED CONCRETE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a phosphogypsum curb and its preparation method to solve the problems of long production cycle, large amount of gel material used, low compressive strength and high cost of the existing curb.

Method used

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  • Phosphogypsum curb and preparation method thereof
  • Phosphogypsum curb and preparation method thereof
  • Phosphogypsum curb and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A phosphogypsum denture, comprising the following components in parts by weight:

[0051] 450 parts of modified phosphogypsum, 200 parts of stone, 300 parts of aggregate, 31 parts of ash, 5 parts of polyvinyl alcohol, 1 part of calcium formate, 2 parts of hydroxypropyl methylcellulose, and 11 parts of accelerator.

[0052] The preparation method comprises the following steps:

[0053] 1) Raw material preparation: The modified phosphogypsum, stones, aggregates, ash, polyvinyl alcohol, calcium formate, hydroxypropyl methylcellulose and accelerator are weighed by computer automation and added to the closed Mixer is stirred to obtain dry mixture;

[0054] 2) According to step 1), add 0.09 parts of water and stir to obtain a uniform semi-dry material;

[0055] 3) Stamping forming: according to step 2) the semi-dry material obtained is filled into the curb mould, the height of the filler does not exceed the height of the mold, the mold filled with the semi-dry material is v...

Embodiment 2

[0065] A phosphogypsum denture, comprising the following components in parts by weight:

[0066] 350 parts of modified phosphogypsum, 156 parts of stone, 233 parts of aggregate, 24 parts of ash, 4 parts of polyvinyl alcohol, 0.8 part of calcium formate, 1.6 parts of hydroxypropyl methylcellulose, and 8.6 parts of accelerator.

[0067] The preparation method comprises the following steps:

[0068] 1) Raw material preparation: The modified phosphogypsum, stones, aggregates, ash, polyvinyl alcohol, calcium formate, hydroxypropyl methylcellulose and accelerator are weighed by computer automation and added to the closed Mixer is stirred to obtain dry mixture;

[0069] 2) According to step 1), add 0.08 parts of water and stir to obtain a uniform semi-dry material;

[0070] 3) Stamping forming: according to step 2) the semi-dry material obtained is filled into the curb mould, the height of the filler does not exceed the height of the mold, the mold filled with the semi-dry material...

Embodiment 3

[0080] A phosphogypsum denture, comprising the following components in parts by weight:

[0081] 550 parts of modified phosphogypsum, 244 parts of stone, 367 parts of aggregate, 38 parts of ash, 6 parts of polyvinyl alcohol, 1.2 parts of calcium formate, 2.4 parts of hydroxypropyl methylcellulose, and 13.5 parts of accelerator.

[0082] The preparation method comprises the following steps:

[0083]1) Raw material preparation: The modified phosphogypsum, stones, aggregates, ash, polyvinyl alcohol, calcium formate, hydroxypropyl methylcellulose and accelerator are weighed by computer automation and added to the closed Mixer is stirred to obtain dry mixture;

[0084] 2) According to step 1), add 0.1 part of water and stir to obtain a uniform semi-dry material;

[0085] 3) Stamping forming: according to step 2) the semi-dry material obtained is filled into the curb mould, the height of the filler does not exceed the height of the mold, the mold filled with the semi-dry material ...

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Abstract

The invention discloses an ardealite curb and a preparation method thereof, belongs to the technical field of ardealite curb processing, and aims to solve the problems of long production cycle, large use amount of a gel material, low compressive strength and high cost of the existing curb. The ardealite road tooth is prepared from the following components in parts by weight: 350 to 550 parts of modified ardealite, 156 to 244 parts of stone, 233 to 367 parts of aggregate, 24 to 38 parts of ash residue, 4 to 6 parts of polyvinyl alcohol, 0.8 to 1.2 parts of calcium formate, 1.6 to 2.4 parts of hydroxypropyl methyl cellulose and 8.6 to 13.5 parts of accelerator, the components are uniformly mixed and stirred, then water is added for stirring, a semi-dry mixture obtained by stirring is filled into a mold, the mold is punched and formed after vibration, and demolding and natural curing are performed after forming. The use of a gelling agent is reduced, the production cost is reduced, the production period is shortened, and the economic benefits of enterprises are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of phosphogypsum tooth processing, and in particular relates to a phosphogypsum tooth and a preparation method thereof. Background technique [0002] Curb teeth are concrete prefabricated blocks or masonry that are raised above the road surface between the roadway and the sidewalk and are basically flat with the sidewalk. , Vehicle traffic safety. The current curb teeth are usually manufactured in two ways: one is made of granite, and the other is prefabricated with ordinary concrete. With the increase of various road constructions, the demand for curbs is also increasing. If you continue to use granite to prepare curbs, the cost and time will be very high, and the uniform quality cannot be guaranteed. Ordinary concrete is made of Cement-based, its energy consumption is high, the production cycle is long, and the cost of raw materials is also high. [0003] Phosphogypsum is an industrial waste residue dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14E01C11/22C04B28/26
CPCC04B28/143E01C11/222C04B28/26C04B2201/50C04B14/02C04B18/04C04B24/2623C04B24/04C04B24/383C04B14/303C04B18/0481C04B14/022C04B22/10C04B22/0093C04B22/144
Inventor 李玮贺靖陈英
Owner GUIZHOU ZHENGHE AERATED CONCRETE CO LTD
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