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Building ceramsite and preparation method thereof

A kind of technology of ceramsite and construction, applied in the field of ceramsite for construction and its preparation

Active Publication Date: 2015-03-04
PANZHIHUA HUANYE METALLURGICAL SLAG DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current production of ceramsite mainly uses aluminate minerals or clay and shale as raw materials, but there is no report on the use of high-titanium slag as raw material to prepare unfired ceramsite

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The present invention also provides the preparation method of above-mentioned building ceramsite, and concrete preparation steps are:

[0026] A. Mix and grind 15-25 parts of cement and 75-85 parts of fly ash into powder by weight percentage as a wrapping material;

[0027] B granulating high-titanium heavy slag and wrapping material to obtain mixture particles;

[0028] C, curing the mixture particles obtained in step B for 28 days according to the curing method of concrete GB50204-2002 to obtain building ceramsite;

[0029] Among them, the weight ratio of high titanium slag and powder is: 4-6:6-4.

[0030] Preferably, the particle size of the powder in step A is 80 μm and the sieve residue is less than 5%; if the particle size is too large, it is difficult to granulate.

[0031] Preferably, the loose bulk density of the high-titanium heavy slag in step B is not greater than 950kg / m 3 , the particle size is 5-15mm. The loose bulk density of high-titanium heavy slag...

Embodiment 1

[0036] Embodiment 1 building ceramsite and production method thereof

[0037] Raw materials: high-titanium slag light aggregate with a particle size of 5 mm to 15 mm produced by Panzhihua Huanye Company, Class II fly ash discharged from Panzhihua 504 Power Plant, and 42.5R cement produced in Panzhihua; among them, the main components of high-titanium heavy slag are: TiO 2 23.9%, CaO26.10%, SiO 2 23.4%, Al 2 o 3 13.1, MgO8.10, TFe2.20%, MnO1.0%, V 2 o 5 0.35%.

[0038] The specific production steps are:

[0039] Pour the liquid high-titanium slag at 1300℃~1400℃ into the pit, spread the slag liquid with a thickness of about 10cm, and then quickly spray the surface of the slag liquid with water until the slag is cooled to a solid state, and the amount of cooling water is 2 to 2.5 times the weight of the slag , dig out after cooling, and then manually select the light part for crushing, and sieve out the 5-15mm part after crushing as the granulation core material for later ...

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Abstract

The invention belongs to the field of building materials, and particularly relates to a building ceramsite and a preparation method thereof. The building ceramsite takes high-titanium dry slag and a coating material as raw materials, wherein the weight ratio of the high-titanium dry slag to the coating material is (4-6):(6-4); and the coating material is a mixture of 15-25 parts by weight of cement and 75-85 parts by weight of fly ash. According to the invention, the high-titanium slag and the fly ash are used as the raw materials; the particle size of the prepared building ceramsite is 5-20 mm, the loose bulk density is within 980 / m<3>, and the cylindrical compressive strength is 8 MPa; and the building ceramsite meets the specification of Chinese standard GB / T17431.1-1998 light-weight aggregates and experiment method thereof.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a building ceramsite and a preparation method thereof. Background technique [0002] The Panxi area is rich in vanadium-titanium magnetite. The solid waste produced after using this ore to make iron is called high-titanium blast furnace slag (referred to as high-titanium slag). Unlike ordinary blast furnace slag, its water quenching activity is low. At present It is mainly used to prepare heavy slag sand aggregate and its derivative products. [0003] Fly ash is the fine ash collected from the flue gas after coal combustion. Fly ash is the main solid waste discharged from coal-fired power plants. The main oxide composition of fly ash in thermal power plants in my country is: SiO 2 、Al 2 o 3 , FeO, Fe 2 o 3 , CaO, TiO 2 Wait. Fly ash is one of the industrial wastes with a large discharge volume in my country. If a large amount of fly ash is not treated, it wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B18/08C04B18/14
CPCY02W30/91
Inventor 杨志远
Owner PANZHIHUA HUANYE METALLURGICAL SLAG DEV CO LTD