Preparation and construction method of machine-sprayed phosphogypsum lightweight plastering mortar

A plastering mortar and phosphogypsum technology, applied in construction, building structure, covering/lining, etc., can solve the problems of easy bleeding of phosphogypsum mortar, poor phosphogypsum wrapping, rough surface morphology, etc., and achieve good adhesion Strength and anti-cracking effect, increase water retention effect, and improve the effect of anti-cracking ability
CN110526658AInactive Publication Date: 2019-12-03CHINA WEST CONSTR ACAD OF BUILDING MATERIALS CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA WEST CONSTR ACAD OF BUILDING MATERIALS CO LTD
Publication Date
2019-12-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation and construction method of machine-sprayed phosphogypsum lightweight plastering mortar. The machine-sprayed phosphogypsum lightweight plastering mortar is prepared from the following components in parts by weight: 75-85 parts of phosphogypsum, 10-15 parts of fine aggregate, 1-6 parts of an inert admixture, 4-8 parts of lightweight aggregate, 0.1-0.2 part of aretarder, 0.1-0.25 part of a water-retaining agent, 0.05-0.1 part of an anti-sagging agent, 0.1-0.3 part of an enhancer, 0.2-0.8 part of a fiber and 0-2 parts of a brightener. According to the preparation and construction method, phosphorus building gypsum (mainly composed of calcium sulfate hemihydrate) modified from solid waste slag phosphogypsum generated when phosphorite is treated with sulfuric acid in the process of phosphoric acid production is used as the main raw materials to prepare the machine-sprayed plastering gypsum mortar, the raw material cost is lowered, the construction efficiency and the construction quality are improved, the purpose of turning waste into treasure is achieved, great economic and social benefits are achieved, and the machine-sprayed phosphogypsum lightweight plastering mortar has a broad application prospect in construction engineering.
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Description

technical field

[0001] The invention relates to a preparation and construction method of machine-sprayed phosphogypsum lightweight plastering mortar, and belongs to the technical field of solid waste comprehensive treatment and treatment. Background technique

[0002] Phosphogypsum is the solid waste generated when sulfuric acid is used to treat phosphate rock in the production of phosphoric acid. Its emissions are gradually increasing, and a small amount of phosphogypsum is used in the construction field, but the utilization rate is extremely low. Most of the phosphogypsum is still disposed of in landfills. , piled up like a mountain, not only occupy a lot of land, but also pollute the surrounding environment.

[0003] In recent years, as energy saving and environmental protection have become the main trend of the development of the construction industry, gypsum plastering mortar has gradually replaced traditional cement mortar with its high cost performance, fast construct...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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