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Ardealite pavement material and preparation method thereof

A pavement material and phosphogypsum technology, applied in the field of building materials, can solve the problems of weak construction, high construction cost, and small amount of phosphogypsum added, and achieve the effects of low cost, expanding application fields, and relieving environmental pressure

Inactive Publication Date: 2016-06-15
湖北固益生环保科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a phosphogypsum pavement material and its preparation method, which solves the problem that the amount of phosphogypsum added in the process of recycling phosphogypsum resources is small, and there are many types of binders in the process of utilization of building materials. Weakness and high construction cost

Method used

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  • Ardealite pavement material and preparation method thereof
  • Ardealite pavement material and preparation method thereof
  • Ardealite pavement material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] The phosphogypsum pavement material provided in this embodiment includes the following ingredients in parts by weight: 75-95 parts of phosphogypsum, 4-12 parts of cement, 2-15 parts of water, and 0.02-0.22 parts of curing agent. It can be seen that in this embodiment, bulk industrial solid waste-phosphogypsum is used as the road construction material, and a certain amount of organic / inorganic binder is added to solidify the phosphogypsum, so as to meet the construction conditions of the road surface and make the leached amount of harmful substances meet the environmental protection standard. The preparation method is simple, the cost is low, and the consumption of phosphogypsum is large, which can solve the problem of a large amount of phosphogypsum stockpiling at present, alleviate the environmental protection pressure of phosphorus chemical enterprises, and expand the application field of phosphogypsum; greatly reduce the reserves of phosphogypsum and low tailings ponds...

Embodiment 2

[0037] This embodiment is obtained by further modification on the basis of the first embodiment.

[0038] The phosphogypsum pavement material provided in this embodiment includes the following components in parts by weight: 75-95 parts of phosphogypsum, 4-12 parts of cement, 2-15 parts of water, 0.02-0.22 parts of curing agent, and 0.01-0.05 parts of modifier. share. It can be seen that this embodiment has the same technical effect as that of the first embodiment above, which will not be repeated here. In addition, adding the modifying agent also has the following beneficial effects: the adhesive strength, water resistance and weather resistance of the curing agent can be increased. Further, the modifying agent is one or more mixed solutions of silane coupling agent, sodium lignosulfonate or water glass.

Embodiment 3

[0040] This embodiment is obtained by further detailed refinement on the basis of the foregoing embodiments 1 and 2.

[0041] The phosphogypsum pavement material provided in this embodiment comprises the following ingredients in parts by weight: 94 parts of phosphogypsum with a water content of 14%, 4 parts of road Portland cement with a strength of 42.5 grades, 2 parts of water, 0.2 part of curing agent, modified 0.05 parts of curing agent; wherein, the curing agent includes 92% of copolymerized polyethylene emulsion and 8% of silicone water repellent; the modifying agent includes 100% of sodium lignosulfonate.

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Abstract

The invention relates to the technical field of building materials, in particular to an ardealite pavement material and a preparation method thereof. The ardealite pavement material comprises 75-95 parts of ardealite, 4-12 parts of cement, 2-15 parts of water and 0.02-0.22 part of curing agent. By means of the ardealite pavement material, the problem that a large amount of ardealite is stacked at present can be solved, the environmental protection pressure of phosphate chemical enterprises is relieved, and the application field of ardealite is enlarged; the storage amount of an ardealite tailings pond is greatly reduced, environmental pollution caused by stacking of solid waste is reduced, and the service life of the ardealite tailings pond is prolonged; the cost produced by management of the tailings pond of the phosphate chemical enterprises is reduced, the material is applied to the road building projects in the transportation radiation range, and benefits are created for the enterprises.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a phosphogypsum pavement material and a preparation method thereof. Background technique [0002] Phosphogypsum is a by-product of wet-process phosphoric acid production, which is a solid residue containing phosphorus mainly calcium sulfate. In addition to calcium sulfate, the main component also contains a small amount of undecomposed phosphate rock powder, free phosphoric acid, iron phosphate, aluminum phosphate, calcium hydrogen phosphate eutectic with gypsum and fluorosilicate and other impurities. Phosphogypsum is the industrial by-product gypsum with the largest annual production and stockpile. According to the "Implementation Plan for Comprehensive Utilization of Bulk Solid Waste" issued by the National Development and Reform Commission, the annual production of phosphogypsum in the country is over 60 million tons, and the current comprehensive utilization rate ...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B18/04C04B24/40
CPCY02W30/91C04B28/04C04B2103/0068C04B2111/0075C04B18/0445C04B24/2611C04B24/42C04B24/24C04B24/18C04B22/08
Inventor 陆宇晖王旭查炎华叶良俊朱智磊胡玉峰宋锦兰
Owner 湖北固益生环保科技有限公司
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