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Phosphogypsum light wall board

A lightweight wallboard, phosphogypsum technology, applied in building components, sustainable waste treatment, solid waste management, etc., can solve problems such as large land, polluted environment, occupation, etc., and achieve the effect of weight reduction and high strength

Inactive Publication Date: 2008-09-24
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The discharge of phosphogypsum not only occupies a large amount of land and pollutes the environment, but also causes a great burden on phosphate fertilizer enterprises. The resource utilization of phosphogypsum has become the key to whether my country's phosphate fertilizer industry can achieve sustainable development

Method used

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  • Phosphogypsum light wall board
  • Phosphogypsum light wall board
  • Phosphogypsum light wall board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 with figure 2 As shown, it is a schematic structural view of the phosphogypsum lightweight wallboard of the present invention. There are 6 vertical circular through holes 2 inside the phosphogypsum lightweight wallboard 1, and two lateral grooves 3 are arranged on both sides for Install and use. The calcined phosphogypsum powder, polystyrene foam particles, fly ash, and sulphoaluminate cement are used as raw materials to mix evenly in proportion, add water and polyvinyl alcohol aqueous solution to stir to form a slurry, and pour it into 6 core tubes. In the mould, the mold core tube is pulled out after the initial setting of the slurry, and the mold is made after the slurry is completely hardened and demolded. The phosphogypsum hollow lightweight wallboard of the present invention is made of the following raw materials in parts by weight:

[0021] Phosphogypsum powder 100 parts;

[0022] 8 parts of polystyrene foam particles;

[0023] 70 parts of ...

Embodiment 2

[0031] The phosphogypsum lightweight wallboard structure of this embodiment is basically the same as that of Embodiment 1, and its raw material ratio is:

[0032] Phosphogypsum powder 100 parts;

[0033] 5 parts of polystyrene foam particles;

[0034] 30 parts of fly ash;

[0035] 0.5 part of sulphoaluminate cement;

[0036] 1 part of 8% polyvinyl alcohol aqueous solution;

[0037] The ratio of water to material is 0.85.

[0038] The technical performance test results of phosphogypsum lightweight wallboard are shown in Table 2.

[0039] Table 2

[0040]

Embodiment 3

[0042] The phosphogypsum lightweight wallboard structure of this embodiment is basically the same as that of Embodiment 1, and its raw material ratio is:

[0043] Phosphogypsum powder 100 parts;

[0044] 6 parts of polystyrene foam particles;

[0045] 60 parts of fly ash;

[0046] 2.5 parts of sulphoaluminate cement;

[0047] 2 parts of 8% polyvinyl alcohol aqueous solution;

[0048] The ratio of water to material is 1.0.

[0049] The technical performance test results of phosphogypsum lightweight wallboard are shown in Table 3.

[0050] table 3

[0051]

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Abstract

The invention relates to a phosphogypsum light wallboard which is manufactured by mainly taking the phosphogypsum and light materials as the raw materials; the invention is manufactured by utilizing the phosphogypsum after calcining treatment as the main raw material; the vertical direction of the phosphogypsum light wallboard is provided with a raw of round through holes; the side direction is provided with a groove; the phosphogypsum light wallboard is manufactured by the following material calculated in weight portions of 100 portions of phosphogypsum powder, 3 to 10 portions of polystyrene foam particles, 30 to 80 portions of fly ash, 0.5 to 3 portions of sulpho-aluminate cement, 1 to 3 portions of PVA liquid of 8 percent; the ratio of water to material is 0.50 to 1.20. The ratio of water to material of the invention mainly utilizes the waste phosphogypsum and fly ash to manufacture a green environment protective wall body material which can reach the national quality requirement, accord with the policies of energy saving, discharge reducing, green and environment protection and have the properties of light quantity, heat isolation, sound isolation high intensity, fire resistance, insect resistance and breathing function, etc.

Description

technical field [0001] The invention belongs to the technical field of gypsum building materials, and relates to a phosphogypsum lightweight wallboard produced from phosphogypsum and light materials as main raw materials. Background technique [0002] In recent years, with the gradual withdrawal of traditional wall materials represented by clay solid bricks, frame structure buildings have quietly risen in my country and are becoming more and more popular. The enclosure wall is the main component of the frame structure building. In the frame structure building, the wall body is required to have light weight, heat insulation, sound insulation, impact resistance, fire prevention and other properties. Lightweight wall panels used as enclosure walls of frame structures have received more attention because they meet the requirements of industrialization. [0003] Phosphogypsum is the waste residue discharged during the production of phosphoric acid, usually every ton (P 2 o 5 )...

Claims

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Application Information

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IPC IPC(8): E04C2/284E04C2/30C04B28/14C04B16/08C04B18/08
CPCC04B2111/28C04B2111/52C04B2111/00017C04B28/143Y02W30/91C04B16/08C04B18/08C04B22/148C04B24/2623
Inventor 陈娟李国忠赵帅田颖于洋柏玉婷
Owner UNIV OF JINAN
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