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Yellow phosphorus slag pavior brick and production method thereof

A technology of yellow phosphorus slag and pavement bricks, which is applied in the field of yellow phosphorus slag pavement bricks and its preparation, can solve the problems of low compressive strength, low flexural strength, and waste, and achieve high compressive strength and good crack resistance , the effect of dense structure

Inactive Publication Date: 2017-08-29
合肥慧林建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems that existing pavement bricks cannot be reused, have low compressive strength, low flexural strength and low wear resistance, the purpose of the present invention is to provide a yellow phosphorus slag pavement brick and its preparation method. Yellow phosphorus slag pavement brick has the advantages of energy saving and environmental protection, high compressive strength, high flexural strength and high wear resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A yellow phosphorus slag pavement brick, comprising the following raw materials in parts by weight: 17.5 parts of cement, 32.5 parts of sand, 17.5 parts of pebbles, 22.5 parts of yellow phosphorus slag powder, 12.5 parts of granular yellow phosphorus slag, 0.75 parts of quicklime powder, and 0.35 parts of water reducer 1.5 parts of retarder and 5 parts of water.

[0031] The addition of yellow phosphorus slag to the raw materials not only solves the problem that pavement bricks cannot be reused as waste, but also solves the problem of uncontrolled discharge of yellow phosphorus slag and pollutes the environment.

[0032] The energy saving and environmental protection, compressive strength, flexural strength and wear resistance of pavement bricks prepared under the raw material formula have all reached the optimum.

[0033] The fineness of yellow phosphorus slag powder is 200 mesh, which is convenient to mix with other raw materials evenly.

[0034] The fineness of the ...

Embodiment 2

[0043] A yellow phosphorus slag pavement brick, comprising the following raw materials in parts by weight: 15 parts of cement, 30 parts of sand, 15 parts of pebbles, 20 parts of yellow phosphorus slag powder, 10 parts of granular yellow phosphorus slag, 0.5 parts of quicklime powder, and 0.2 parts of water reducer 0.5 parts of retarder and 4 parts of water.

[0044] The addition of yellow phosphorus slag to the raw materials not only solves the problem that pavement bricks cannot be reused as waste, but also solves the problem of uncontrolled discharge of yellow phosphorus slag and pollutes the environment.

[0045] The fineness of yellow phosphorus slag powder is 200 mesh, which is convenient to mix with other raw materials evenly.

[0046] The fineness of the yellow phosphorus slag is 1-4 mm, which plays the role of the skeleton. Because the yellow phosphorus slag itself has a certain strength, the compressive strength of the prepared pavement bricks is significantly improve...

Embodiment 3

[0055] A yellow phosphorus slag pavement brick, comprising the following raw materials in parts by weight: 20 parts of cement, 35 parts of sand, 20 parts of pebbles, 25 parts of yellow phosphorus slag powder, 15 parts of granular yellow phosphorus slag, 1 part of quicklime powder, and 0.5 parts of water reducer 2.5 parts of retarder and 6 parts of water.

[0056] The addition of yellow phosphorus slag to the raw materials not only solves the problem that pavement bricks cannot be reused as waste, but also solves the problem of uncontrolled discharge of yellow phosphorus slag and pollutes the environment.

[0057] The fineness of yellow phosphorus slag powder is 200 mesh, which is convenient to mix with other raw materials evenly.

[0058] The fineness of the yellow phosphorus slag is 1-4 mm, which plays the role of the skeleton. Because the yellow phosphorus slag itself has a certain strength, the compressive strength of the prepared pavement bricks is significantly improved. ...

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PUM

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Abstract

The invention provides a yellow phosphorus slag pavior brick and a production method thereof, which relate to the technical field of a pavior brick production method technology. The pavior brick comprises the following raw materials in parts by weight: 15-20 parts of cement, 30-35 parts of sand, 15-20 parts of pebble, 20-25 parts of yellow phosphorus slag powder, 10-15 parts of granular yellow phosphorus slag, 0.5-1 part of raw pulverized limestone, 0.2-0.5 parts of a water reducer, 0.5-2.5 parts of a delayed coagulant, and 4-6 parts of water. The production method comprises the following steps: 1) mixing sand, pebble, the yellow phosphorus slag powder, the granular yellow phosphorus slag and the raw pulverized limestone and stirring the materials to obtain a mixture; 2) adding the cement, the water reducer and the delayed coagulant in the mixture, adding water for stirring to obtain a mixed slurry, performing compacting moulding on the mixed slurry by a building block forming machine to obtain the molded building block; and 3) performing maintenance on the molded building block for 29-30 days at the temperature of 25-27 DEG C and humidity of 92-95%. The method solves the problems of non-utilization of waste, low compressive strength, low flexural intensity and low abrasion resistance of the current pavior brick.

Description

technical field [0001] The invention belongs to the technical field of pavement brick production, and in particular relates to a yellow phosphorus slag pavement brick and a preparation method thereof. Background technique [0002] At present, every 1t of yellow phosphorus produced in China will produce 8-10t of yellow phosphorus slag. Due to the uncontrolled discharge of yellow phosphorus slag, it is very easy to cause irreversible pollution to the surrounding air, water, soil and ecological environment. At present, the effective utilization rate of yellow phosphorus slag is very low in China. According to incomplete statistics, the annual discharge of phosphogypsum waste residue in my country has reached more than 40 million tons, while the utilization rate is only 4.1%-4.5%. How to effectively deal with yellow phosphorus slag has become a difficult problem for phosphorus chemical enterprises. [0003] As a paving material, pavement bricks have a wide range of applicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/04C04B22/16C04B103/22
CPCY02W30/91C04B28/021C04B18/04C04B22/16C04B2103/22C04B2201/50C04B14/06C04B14/02C04B22/064C04B2103/302
Inventor 刘伍
Owner 合肥慧林建材有限公司
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