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Multi-solid-waste large-mixing-amount non-fired water permeable brick and preparation method thereof

A technology of permeable bricks and large dosage is applied in the field of building materials to achieve the effect of high utilization rate of solid waste, simple process and reduction of site resource waste.

Inactive Publication Date: 2020-12-29
张延年
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the above-mentioned technical problems, the present invention provides a non-fired permeable brick with a large amount of solid waste and its preparation method. The present invention uses steel slag, coal gangue, desulfurized gypsum and iron ore waste rock as raw materials, and the utilization rate of solid waste High, reducing the waste of site resources and a series of ecological problems caused by landfill stacking; the molding process is compression molding without firing, the process is simple, no high-temperature calcination is required, and the energy consumption is low; raw materials are mechanically ground to improve activity, coal gangue and desulfurized gypsum The addition of slag can stimulate the activity of steel slag, improve the strength and wear resistance of water-permeable

Method used

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  • Multi-solid-waste large-mixing-amount non-fired water permeable brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A non-burning permeable brick with a large amount of solid waste and a preparation method thereof. The permeable brick is prepared by using 46% of steel slag, 20% of coal gangue, 14% of desulfurized gypsum, 10% of aggregate, 8% of water, and 2% of water reducing agent. The preparation process is as follows:

[0040] 1) The steel slag and coal gangue are respectively crushed and ground until the specific surface area is 580㎡ / kg, and the

[0041] 2) Mix and crush iron ore waste rock and construction waste at a ratio of 1:1 to a particle size of 1-2mm, and set aside

[0042] 3) Dry the desulfurized gypsum at 60°C and grind it to a specific surface area of ​​600㎡ / kg for later use

[0043] 4) Add the materials into the mixer according to the ratio and stir for 3-5 minutes, then add water and water reducer and stir for 10 minutes to make the materials fully mixed and even

[0044] 5) Put it into the permeable brick mould, press and form it on the hydraulic device, the formi...

Embodiment 2

[0056] A non-burning permeable brick with a large amount of solid waste and a preparation method thereof. The permeable brick is prepared by using 48% of steel slag, 16% of coal gangue, 12% of desulfurized gypsum, 13% of aggregate, 8% of water, and 3% of water reducing agent. The preparation process is as follows:

[0057] 1) The steel slag and coal gangue are respectively crushed and ground until the specific surface area is 580㎡ / kg, and the

[0058] 2) Mix and crush iron ore waste rock and construction waste at a ratio of 1:1 to a particle size of 1-2mm, and set aside

[0059] 3) Dry the desulfurized gypsum at 60°C and grind it to a specific surface area of ​​600㎡ / kg for later use

[0060] 4) Add the materials into the mixer according to the ratio and stir for 3-5 minutes, then add water and water reducer and stir for 10 minutes to make the materials fully mixed and even

[0061] 5) Put it into the permeable brick mould, press and form it on the hydraulic device, the formi...

Embodiment 3

[0073] A non-burning permeable brick with a large amount of solid waste and a preparation method thereof. The permeable brick is prepared by using 45% of steel slag, 20% of coal gangue, 10% of desulfurized gypsum, 15% of aggregate, 9% of water, and 1% of water reducing agent. The preparation process is as follows:

[0074] 1) The steel slag and coal gangue are respectively crushed and ground until the specific surface area is 580㎡ / kg, and the

[0075] 2) Mix and crush iron ore waste rock and construction waste at a ratio of 1:1 to a particle size of 1-2mm, and set aside

[0076] 3) Dry the desulfurized gypsum at 60°C and grind it to a specific surface area of ​​600㎡ / kg for later use

[0077] 4) Add the materials into the mixer according to the ratio and stir for 3-5 minutes, then add water and water reducer and stir for 10 minutes to make the materials fully mixed and even

[0078] 5) Put it into the permeable brick mould, press and form it on the hydraulic device, the formi...

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Abstract

The invention relates to a multi-solid-waste large-mixing-amount non-fired water permeable brick and a preparation method thereof, and belongs to the field of building material preparation, the multi-solid-waste large-mixing-amount non-fired water permeable brick comprises the following components in proportion: 45%-50% of steel slag, 10%-20% of coal gangue, 8%-15% of desulfurized gypsum, 10-20% of aggregate, 8%-10% of water and 1%-3% of water reducing agent, wherein the aggregate is composed of iron mine waste rock and building waste at 1:1. A large amount of solid waste is adopted as the rawmaterial, the ecological pressure can be reduced while the cost is saved, the solid waste utilization rate is increased, energy is greatly saved in an unfired mode, the activity of the raw material is improved through mechanical grinding, the activity of steel slag can be stimulated through addition of coal gangue and desulfurized gypsum, and the permeable strength and wear resistance are improved.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a fire-free permeable brick with a large amount of solid waste and a preparation method thereof. Background technique [0002] At present, my country's urban water problems are mainly manifested as: water resources are in short supply and waste is common; groundwater is seriously overexploited, with a large underground funnel area; Traditional rainwater resources directly enter the urban water body through the rainwater pipe network, which not only causes water pollution but also ignores the utilization value of urban rainwater resources, resulting in a reduction in the efficiency of water resource development and utilization. With the continuous in-depth research of scholars, the problem of how to make comprehensive use of rainwater resources and make the increased surface runoff survive in other ways has been solved. Sponge city is based on the principle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/08C04B38/00C04B20/02B28B3/00C04B18/14C04B18/12
CPCB28B3/00C04B20/026C04B28/082C04B2111/00284C04B22/146C04B18/12C04B18/16C04B2103/302C04B38/0041C04B18/142Y02W30/91
Inventor 张延年李志军陈志燕杜松岩董宁秦桂娟李琦琦陈昊刘柏男张文洁崔长青王亭张于于康楠王铁源闫明程于洋
Owner 张延年
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