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Supersulfide phosphogypsum phosphorus slag cement concrete product and preparation method thereof

A technology for cement concrete and phosphogypsum, which is applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of high cement content and low utilization rate of phosphogypsum, and achieves improved strength and shortened setting time. , the effect of increasing the density

Inactive Publication Date: 2020-10-30
JIANGSU EFFUL SCIENCE AND TECHNOLOGY CO LTD
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Problems solved by technology

In these two inventions, the concrete utilizes the potential gelling properties of phosphorus slag powder and fly ash, the utilization rate of phosphogypsum is low, and the cement content is also high

Method used

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  • Supersulfide phosphogypsum phosphorus slag cement concrete product and preparation method thereof

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Embodiment Construction

[0022] The content of the present invention will be further described in detail below.

[0023] A preparation method of phosphorous gypsum phosphorous slag cement concrete products, the steps are as follows:

[0024] S1. Phosphorus slag grinding: wet-grind phosphorus slag with water until the specific surface area is 481.2m 2 / kg to obtain a solid content of 57.3% phosphorus slag slurry for subsequent use.

[0025] S2. Grinding of phosphogypsum: add 1% ordinary Portland cement to phosphogypsum, add water and wet grind until the specific surface area is 413.5m 2 / kg to obtain phosphogypsum slurry with a solid content of 57.5%, for subsequent use.

[0026] S3. Filtration and concentration: the phosphorus slag slurry and phosphogypsum slurry are filtered and concentrated to obtain phosphorus slag sludge and 77.6% phosphogypsum slurry with a solid content of 78.2%, which are set aside.

[0027] S4. Mixing and mixing: add phosphogypsum mud, phosphorus slag mud, ordinary Portland...

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Abstract

The invention discloses a supersulfide phosphogypsum phosphorus slag cement concrete product and a preparation method thereof. The supersulfide phosphogypsum phosphorus slag cement concrete product comprises the following raw material components: phosphogypsum, phosphorus slag, silicate cement, sand, stones, a water reducing agent and water. Through early-stage wet grinding of the phosphogypsum and the phosphorus slag, the strength of the material in each stage is greatly improved, the production process is simple, the cost is low, a large amount of industrial solid waste can be used, and environmental protection is facilitated.

Description

technical field [0001] The invention relates to a supersulfur gypsum phosphorus slag cement concrete product and a preparation method thereof. Background technique [0002] With the rapid development of society, the importance of environmental protection has become increasingly prominent, and environmental protection needs to start from all walks of life. For the construction industry, accelerating the development of green buildings and building materials and building low-carbon cities is an inevitable choice for sustainable social development. . Concrete is currently the most used building material, consuming nearly 4 billion cubic meters per year, of which cement is one of the important materials that make up concrete, accounting for about 1 / 6 of the total amount of concrete. Cement production uses mineral resources as the basic raw materials and fossil energy as the main fuel. It is an industry with high energy consumption and high emission operations such as high temper...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B18/14
CPCC04B18/145C04B28/143C04B7/02C04B14/06C04B2103/302C04B22/002C04B14/00Y02W30/91
Inventor 刘丽娟唐永波马红青万建东王威立
Owner JIANGSU EFFUL SCIENCE AND TECHNOLOGY CO LTD
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