CN101993208A

CN101993208A - Cement concrete intensifier produced by using red mud industrial waste

Info

Publication number: CN101993208A
Application number: CN2010105183674A
Authority: CN
Inventors: 宋坤亮
Original assignee: Yangquan City Huatong Building Materials Research Institute
Current assignee: Yangquan City Huatong Building Materials Research Institute
Priority date: 2010-10-26
Filing date: 2010-10-26
Publication date: 2011-03-30

Abstract

The invention discloses a cement concrete intensifier produced by using red mud industrial waste, which is characterized in that: red mud, slag, fly ash and other industrial wastes are mixed according to a certain proportion; the intensifier is produced by drying, weighing, mixing, grinding and packaging; the intensifier can be mixed with building mortar directly and used in concrete production, and the weight of the intensifier per cubic meter of the building mortar is 100 to 150 kilograms and the added amount of the intensifier in concrete is 13 to 24 percent based on the amount of the concrete; and when the building mortar added with the intensifier is used in combination with fly ash, 20 to 40 percent of concrete can be saved per cubic meter. The intensifier has the advantages of saving energy, reducing emission, simplifying process and operation, along with low cost, high strength and wide application range, and is particularly used for preparing building mortar, pre-mixed commercial concrete and concrete.

Description

Utilize the red mud trade waste to manufacture the cement concrete toughener

Technical field:

The present invention is specifically related to a kind of red mud trade waste that utilizes and manufactures the cement concrete toughener, belongs to building material technical field.

Background technology:

Known to the contriver, a kind of trade waste of discharging in the aluminum oxide production process is called red mud, and 1 ton of aluminum oxide of every production will be discharged 0.2～0.6 ton of red mud.According to statistics, about 5,000,000 tons of the red mud of the annual discharging of China at present, and the utilization ratio of practical efficiency less than 30%, especially Bayer process red mud has only about 5%, utilize Bayer process red mud to manufacture the cement concrete toughener, and meet the precedent that does not almost have success of request of national standard fully.

Summary of the invention:

Purpose of the present invention is exactly for remedying above deficiency, provide a kind of be that Bayer process red mud is manufactured the cement concrete toughener with slag, flyash combined grinding after treatment, directly mix in building mortar or the concrete and use, mix the mortar of this toughener and the red mud trade waste that utilizes that concrete meets request of national standard fully and manufacture the cement concrete toughener.

The present invention realizes like this, the described red mud trade waste that utilizes is manufactured the cement concrete toughener, it is characterized in that getting red mud 20---65%, slag 30---55%, flyash 15---25% industrial waste is prepared burden by a certain percentage, and drying → metering → batching → grinding → technology of the package is made.This toughener can directly mix building mortar and concrete production is used, and weight ratio is that every cube of volume of building mortar is 100～150 kilograms, and volume is 13%～24% of a cement consumption in the concrete; The building mortar that mixes toughener cooperates flyash to use every cube can save cement 20%～40%, and 28 days intensity of mortar has raising in various degree simultaneously, and the comprehensive production cost of mortar reduces by 20 yuan/m ³～30 yuan/m ³Mix every cube of cement consumption of concrete of toughener and can save more than 50 kilograms, but equivalent substitution cement uses; Concrete seven sky and 28 days intensity all have raising in various degree.With the C30 concrete is example, adopts every cube of concrete cement consumption of 32.5 Portland blasts to save 50～70Kg, and concrete strength improves more than 10%, and manufacturing cost reduces by 10～15 yuan for every cube.

This cement concrete toughener manufacturing process is simple, but dry production, but also wet production.Article one, produce 100000 tons industrial scale per year, about 950,000 yuan of dry production facility investment, about 450,000 yuan of wet production facility investment.

The red mud trade waste that utilizes of the present invention is manufactured the cement concrete toughener, has the utilization of waste material energy-saving and emission-reduction, and production technique is simple to operation, and cost is low, the intensity height, and wide accommodation meets the advantage of national industrial policies.

Embodiment:

Implementation column:

Utilize the red mud trade waste to manufacture the cement concrete toughener, it is characterized in that getting red mud 20---65%, slag 30---55%, flyash 15---25% industrial waste is prepared burden by a certain percentage, and drying → metering → batching → grinding → technology of the package is made.

Cement concrete and building mortar detect testing data

Implementation column 1 red mud toughener is used for concrete test result (C30)

Annotate: concrete adopts 32.5 composite Portland cements, cement observed strength R28=38.9MPa

Implementation column 2 red mud tougheners are used for premixing commerical ready-mixed concrete test-results (C30)

Annotate: concrete adopts 32.5 composite Portland cements, and observed strength is R28=37.5MPa

Implementation column 3 red mud tougheners preparation masonry mortar test-results

Annotate: 32.5 composite Portland cements, observed strength R28=35.3MPa are adopted in the mortar test.

Claims

1. utilize the red mud trade waste to manufacture the cement concrete toughener, it is characterized in that getting 20%～65% red mud, 30%～55% slag, industrial wastes such as 15%～25% flyash are prepared burden by a certain percentage, drying → metering → batching → grinding → technology of the package is made, toughener can directly mix building mortar and concrete production is used, and weight ratio is that every cube of volume of building mortar is 100～150 kilograms, and volume is 13%～24% of a cement consumption in the concrete; The building mortar that mixes toughener cooperates flyash to use every cube can save cement 20%～40%.