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Method for preparing high-doped fly ash concrete product

A technology of concrete products and fly ash, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of increasing energy consumption and cost of concrete products

Active Publication Date: 2012-05-30
PETROCHINA CO LTD
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  • Summary
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AI Technical Summary

Problems solved by technology

[0002] Chinese Patent Publication No. 1359868 discloses "a high-volume fly ash sintered product", which greatly improves the efficiency of using fly ash, but due to the need to sinter the product, it increases the energy consumption and cost of concrete product production

Method used

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Embodiment Construction

[0017] Consists of the following components by weight:

[0018] (1) Cement: 220 parts of 42.5R ordinary Portland cement;

[0019] (2) Fine aggregate: river sediment, fineness modulus 2.8, mud content <1.0%, 300 parts;

[0020] (3) Coarse aggregate: 600 parts of breach stone 5-8mm, 300 parts of breach stone 3-5mm;

[0021] (4) Fly ash: 620 parts of class I and II fly ash;

[0022] (5) Y stimulator Na 2 SO 4 16 copies;

[0023] (6) The N activator is 6 parts of a compound of β-naphthalene sulfonic acid formal and calcium lignosulfonate, compounded at 1:1 by weight;

[0024] (7) Blending water and curing water: 160 parts of tap water.

[0025] 2. Production conditions: General concrete product production line and steam curing kiln.

[0026] The excitation force of the equipment reaches: 80000kN; the main vibration time: 3s; the steam curing time is not less than 8 hours.

[0027] The general equipment is vibration forming hosts such as hess1500Fva and hess2000Fva importe...

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Abstract

The invention relates to a method for preparing a high-doped fly ash concrete product. The product consists of the following components in part by weight: 220 parts of 42.5R common silicate cement, 300 parts of river deposition sand of which the fineness modulus is 2.8 and the mud content is less than 1.0 percent, 600 parts of broken stone of 5 to 8 millimeters, 300 parts of broken stone of 3 to 5 millimeters, 620 parts of grade-I and grade-II fly ash, 16 parts of Y exciting agent Na2SO4, 6 parts of N exciting agent which is a compound of beta-naphtholsulfonic formal and calcium lignosulphonate, and 160 parts of tap water. The method uses a common concrete product production line and a steam curing kiln, the exciting force of the equipment reaches 80,000kN, the main vibration time is 3 second, and the steam curing time is 8 hours.

Description

technical field [0001] The invention relates to a preparation method of a high-volume fly ash concrete product. Background technique [0002] Chinese Patent Publication No. 1359868 discloses "a high-volume fly ash sintered product", which greatly improves the efficiency of using fly ash, but due to the need to sinter the product, it increases the energy consumption and cost of concrete product production . Contents of the invention [0003] The purpose of the present invention is to solve the problem of increasing the amount of fly ash to replace sand and gravel aggregate and cement in the process of producing concrete products by general concrete machinery, so as to reduce the production cost of concrete products and improve product performance. [0004] A kind of high volume fly ash concrete of the present invention is to be made up of following composition by weight: [0005] (1) Cement: 220 parts of 42.5R ordinary Portland cement; [0006] (2) Fine aggregate: river ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B18/08C04B14/06C04B24/22C04B24/18
CPCY02W30/91
Inventor 周维潘登耀
Owner PETROCHINA CO LTD