Coal ash solidifying agent for coal ash building materials

A technology of fly ash and binder, which is applied in the field of building material production, can solve the problems of large dry shrinkage and non-freeze-resistant fly ash binder, etc., achieves low dry shrinkage, promotes rational utilization, and is easy to use raw materials. the effect

Inactive Publication Date: 2012-07-11
北京清渠环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to propose a kind of fly ash consolidating agent that is used to solve the problem that the fly ash building material produced at present has the problem of large dry shrinkage and no frost resistance in view of the above problems. For fly ash building materials, it can be used as a cementitious material for fly ash building materials, which can solve the problem of using fly ash building materials in cold northern regions

Method used

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  • Coal ash solidifying agent for coal ash building materials
  • Coal ash solidifying agent for coal ash building materials
  • Coal ash solidifying agent for coal ash building materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of fly ash consolidation agent for fly ash building materials, the raw material of described fly ash consolidation agent comprises clinker, granulated blast furnace slag, gypsum, lime, crystal nuclide, described clinker, The ratio of parts by weight of granulated blast furnace slag, gypsum, lime and crystal nuclide is:

[0040] Clinker 10~30

[0041] Granulated blast furnace slag 50~70

[0042] Gypsum 10~20

[0043] Lime 5~15

[0044] Crystal nuclides 2~5.

[0045] The clinker is a semi-finished product obtained by using limestone, clay and iron raw materials as the main raw materials, which are prepared into raw meal in an appropriate proportion, burned until part or all of them are melted, and cooled. The main components are CaO, SiO 2 、Al 2 o 3 and Fe 2 o 3 , and CaO, SiO in clinker 2 、Al 2 o 3 and Fe 2 o 3 It does not exist as a single oxide, but a collection of various minerals formed by chemical reactions of two or more oxides at high temperat...

Embodiment 2

[0062] This embodiment is an improvement made on the basis of Embodiment 1. For the same part as Embodiment 1 in this embodiment, please refer to the content disclosed in Embodiment 1 for understanding, and the content disclosed in Embodiment 1 should also be used as this embodiment. The content of the example will not be repeated here.

[0063] The weight and number ratio of described clinker, granulated blast furnace slag, gypsum, lime, crystal nuclide is:

[0064] Clinker 10

[0065] Granulated blast furnace slag 70

[0066] plaster 10

[0067] lime 15

[0068] Crystal nuclides 5.

[0069] In this example, the clinker comes from the sales branch of Beijing Shuangshan Cement Clinker Co., Ltd., the granulated blast furnace slag comes from Shougang slag, gypsum and lime are commercially available products, and the crystal nuclei are products of Beijing Hengshengran Building Materials Technology Co., Ltd. , currently available in the market.

[0070] The test method is th...

Embodiment 3

[0074] This embodiment is an improvement made on the basis of Embodiment 1. For the same part as Embodiment 1 in this embodiment, please refer to the content disclosed in Embodiment 1 for understanding, and the content disclosed in Embodiment 1 should also be used as this embodiment. The content of the example will not be repeated here.

[0075] The weight and number ratio of described clinker, granulated blast furnace slag, gypsum, lime, crystal nuclide is:

[0076] Clinker 30

[0077] Granulated blast furnace slag 50

[0078] plaster 20

[0079] lime 5

[0080] Crystal Nuclides 2.

[0081] The source of each raw material in the present embodiment is the same as in Example 2.

[0082] The test method is the same as in Example 1.

[0083] The experimental data is shown in the table below:

[0084]

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Abstract

The invention discloses a coal ash solidifying agent for coal ash building materials, wherein the coal ash solidifying agent comprises clinker, granulated blast-furnace slag, gypsum, lime and crystal nucleus elements, and is prepared by each raw material above in parts by weight. The coal ash solidifying agent provided by the invention can enable the adulteration quantity of coal ash in the coal ash building materials to be increased, and the reasonable utilization of coal ash is promoted; and by utilizing the coal ash solidifying agent provided by the invention, the freezing-proof capability of the coal ash building materials can be strengthened, and the prepared coal ash building materials have small dry contractibility rate and good freezing-resistant performance.

Description

technical field [0001] The invention relates to the field of building material production, in particular to a fly ash consolidation agent used for fly ash building materials. Background technique [0002] At present, our country is in a period of comprehensive and rapid development. The rapid development of various industries has driven the rapid development of our country's economy, but it has also brought problems such as resource and energy shortages and environmental pollution. Saving resources and protecting the environment have become my country's basic national policies. my country is one of the few countries in the world that uses coal as the main energy source, and coal accounts for more than 75% of the energy composition. Fly ash is the pulverized coal ash discharged from the pulverized coal boiler of the thermal power plant, and it is a relatively common type of industrial solid waste. At present, my country's thermal power generation industry emits more than 200...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B11/28C04B28/14C04B18/08
CPCY02W30/91
Inventor 刘文永邹晨峰刘文振
Owner 北京清渠环保科技有限公司
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