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Embossed brick and preparation method thereof

A technology for embossing and desulfurizing building gypsum, applied in the field of building materials, can solve problems such as accidents, and achieve the effects of reduced production cost, good compressive strength and frost resistance, and simple production process

Inactive Publication Date: 2018-10-19
郑州天罡实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is also the danger of accidents in the tailings pond, and once it happens, the consequences will be very serious

Method used

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  • Embossed brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The embossed brick includes the following raw materials in parts by weight: 30 parts of iron tailings, 48 ​​parts of desulfurized building gypsum, 20 parts of fly ash, and 2 parts of reinforcing agent, wherein the reinforcing agent includes water reducing agent, water repellent and Latex powder, wherein the weight ratio of the water reducing agent, water repellent and latex powder is 1:1:2.

[0027] The iron tailings are solid wastes discharged by iron ore companies after grinding iron ore to extract iron concentrate.

[0028] The desulfurized building gypsum is solid waste produced by the desulfurization of coal-fired enterprises, and is calcined at low temperature and ground to make it into hemihydrate gypsum to obtain the desulfurized building gypsum.

[0029] The fly ash is fly ash produced by coal burning enterprises.

[0030] The fly ash is first grade ash or high calcium ash.

[0031] The preparation method of the relief brick includes the following steps:

[0032] Step 1:...

Embodiment 2

[0036] The embossed brick includes the following raw materials in parts by weight: 35 parts of iron tailings, 44 parts of desulfurized building gypsum, 20 parts of fly ash, and 1 part of a reinforcing agent, wherein the reinforcing agent includes a water reducing agent and a water repellent And latex powder, wherein the weight ratio of the water reducing agent, water repellent and latex powder is 1:1:2.

[0037] The iron tailings are solid wastes discharged by iron ore companies after grinding iron ore to extract iron concentrate.

[0038] The desulfurized building gypsum is solid waste produced by the desulfurization of coal-fired enterprises, and is calcined at low temperature and ground to make it into hemihydrate gypsum to obtain the desulfurized building gypsum.

[0039] The fly ash is fly ash produced by coal burning enterprises.

[0040] The fly ash is first grade ash or high calcium ash.

[0041] The preparation method of the relief brick includes the following steps:

[0042] S...

Embodiment 3

[0046] The embossed brick includes the following raw materials in parts by weight: 25 parts of iron tailings, 48 ​​parts of desulfurized building gypsum, 25 parts of fly ash, and 2 parts of reinforcing agents, wherein the reinforcing agents include water reducing agents and water repellents And latex powder, wherein the weight ratio of the water reducing agent, water repellent and latex powder is 1:1:2.

[0047] The iron tailings are solid wastes discharged by iron ore companies after grinding iron ore to extract iron concentrate.

[0048] The desulfurized building gypsum is solid waste produced by the desulfurization of coal-fired enterprises, and is calcined at low temperature and ground to make it into hemihydrate gypsum to obtain the desulfurized building gypsum.

[0049] The fly ash is fly ash produced by coal burning enterprises.

[0050] The fly ash is first grade ash or high calcium ash.

[0051] The preparation method of the relief brick includes the following steps:

[0052] S...

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Abstract

The invention relates to an embossed brick and a preparation method thereof, and belongs to the technical field of building materials. The embossed brick is prepared from the following raw materials in parts by weight: 25 to 35 parts of iron tailings, 45 to 49 parts of desulfurization building gypsum, 20 to 25 parts of fly ash, and 1 to 2 parts of reinforcing agent. The preparation method of the embossed brick comprises the following steps: respectively weighing the iron tailings, the desulfurization building gypsum and the fly ash for subsequent use according to the weight ratios; uniformly mixing the iron tailings, the desulfurization building gypsum and the fly ash and stirring by adding water until solid content is 65 to 75 percent; pouring the iron tailings, the desulfurization building gypsum and the fly ash into a mould to be molded; removing the mould after 1 hour; naturally curing a molded product for 3 days so as to obtain the embossed brick. The embossed brick and the preparation method thereof have the following advantages that the iron tailings are not needed to be graded, so that large-scale utilization of the iron tailings is possibly achieved; the preparation process is simple, burning and steaming are eliminated, so that the production cost is greatly reduced, and the produced embossed brick has the advantages of good compressive strength and freezing resistance.

Description

Technical field [0001] The invention belongs to the technical field of building materials, and specifically relates to a relief brick and a preparation method thereof. Background technique [0002] The embossed bricks are carved from sintered blue bricks, which are labor-intensive and time-consuming, and the preparation cost is high. The rapid casting method proposed in this patent can greatly reduce the production cost of embossed bricks. [0003] Iron tailings, fly ash and desulfurized gypsum are all blue-gray granular materials, which are good materials for preparing blue-gray embossed bricks. After proper treatment, these industrial wastes can be used to make embossed bricks, which is an effective way for waste resource utilization. . [0004] With the continuous development of the national economy, the scale of mineral resources development continues to increase, and the output of tailings continues to increase. In order to manage these tailings well, tailings engineering is ...

Claims

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Application Information

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IPC IPC(8): C04B28/14
CPCC04B28/144C04B2201/50C04B18/08C04B18/142C04B2103/302C04B2103/65C04B24/26
Inventor 符勇张文博
Owner 郑州天罡实业有限公司
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