CN104030594A

CN104030594A - Nickel slag and manganese slag concrete compound admixture and preparation method thereof

Info

Publication number: CN104030594A
Application number: CN201410240137.4A
Authority: CN
Inventors: 冀成新; 于吉涛; 岳光亮
Original assignee: Shandong Zhong Sen Science And Technology Co Ltd
Current assignee: Shandong Zhong Sen Science And Technology Co Ltd
Priority date: 2014-05-30
Filing date: 2014-05-30
Publication date: 2014-09-10
Anticipated expiration: 2034-05-30
Also published as: CN104030594B

Abstract

The invention relates to a nickel slag and manganese slag concrete compound admixture and a preparation method thereof, belonging to the technical field of production of mineral admixtures. The nickel slag and manganese slag concrete compound admixture is prepared from the following raw materials in percent by weight: 3-10 percent of nickel slag, 25-45 percent of manganese slag, 10-30 percent of calcined clay, 30-60 percent of limestone, 5-15 percent of black stone and 3-10 percent of ardealite, wherein the sum of all percents by weight of the components is equal to 100 percent. The compound admixture provided by the invention is used in concrete; and the strength of the concrete is improved on the premise that the work performance of the concrete is ensured. Meanwhile, the compound admixture is lower in cost, and capable of replacing mineral powder, cement and the like in the concrete, thereby greatly reducing the cost of the concrete and increasing the economic benefit.

Description

A kind of nickel slag manganese dreg concrete composite blend and preparation method thereof

Technical field

The present invention relates to a kind of composite blending material for concrete that nickel slag, manganese slag, chainotte, Wingdale, black stone, phosphogypsum etc. are main raw material and preparation method thereof of take, belong to material of construction fabricating technology field.

Background technology

Growth requirement along with green concrete, breeze in current concrete gel material, fly ash is in short supply and price rising all the way, cause concrete manufacturing cost progressively to raise, composite blend Substitute For Partial gelling material is an important research direction of modern concrete.

Mostly the application of current common adulterant is to utilize one or both intergrindings such as domestic refuse bottom ash, unslaked lime, Wingdale, slag, slag micropowder, phosphorus slag and additive (being mainly inorganic salts), and specific surface area is generally at 400～600m ²between/kg, the flyash in replacement gelling material etc., the economic benefit that plays to a certain extent effect of energy and bring to stirring station.

Existing scheme is in concrete use, application that can only be among a small circle, be not suitable for standardized industrial production, and be applied in concrete, the large and later strength of the slump-loss that causes fresh concrete reduces obviously, need the extra one-tenth that increases admixture originally to meet concrete construction requirement, be not easy to like this application a large amount of in concrete.

Summary of the invention

The object of the present invention is to provide a kind of nickel slag manganese dreg concrete composite blend and preparation method thereof, 6 kinds of materials with same-action are not obtained after according to certain material collocation grinding, for concrete, guaranteeing, under the prerequisite of concrete work performance, to have improved concrete intensity, and, adulterant cost of the present invention is lower, can substitute breeze, cement etc. in concrete, greatly reduce concrete cost, improve economic benefit.

Technical scheme of the present invention is:

A nickel slag manganese dreg concrete composite blend, is characterized in that: the raw material by following weight percent is made:

Nickel slag 3～10%, manganese slag 19～45%, chainotte 10～30%, Wingdale 30～60%, black stone 5～15%, phosphogypsum 3～10%, the weight percent sum of above each component is 100%.

The selection of material and blend proportion in composite blend; According to the feature of the difficulty of material, easy grinding, choose material; And according to raw-material price and the collocation of the contribution of concrete strength being carried out to material ratio.

Preferably, by the raw material of following weight percent, made: nickel slag 5%, manganese slag 25%, chainotte 10%, Wingdale 50%, black stone 5%, phosphogypsum 5%.

Preferably, by the raw material of following weight percent, made: nickel slag 10%, manganese slag 30%, chainotte 10%, Wingdale 40%, black stone 5%, phosphogypsum 5%.

Preferably, by the raw material of following weight percent, made: nickel slag 15%, manganese slag 25%, chainotte 10%, Wingdale 40%, black stone 5%, phosphogypsum 5%.

The present invention also provides a kind of preparation method of concrete composite blending material, it is characterized in that, comprises the following steps:

1. by above-mentioned weight percent, take raw material, control water into the mill and be less than 2%, enter the front material particles < 5mm of mill, if be greater than 5mm, need fragmentation;

2. after raw material step being taken in 1. mixes, put into ball mill, use 45 μ m square hole sieves, control and tail over 15 ± 2%, obtain composite blending material for concrete.

Be less than this fineness, the specific surface area of adulterant is excessive, and water requirement is bigger than normal, and concrete loss is very large; Be greater than the activity performance of this fineness adulterant not out, concrete low strength.

Preferably, described step is controlled water into the mill in 1. and is less than 2% mode for inserting drying machine drying.

The invention has the beneficial effects as follows:

1. compound composite blend of the present invention is by 6 kinds of cheap starting material intergrindings, controls rational granular size, utilizes Wingdale to improve early strength, reduces the absorption of admixture and then reduces concrete loss; Utilize manganese slag, nickel slag, chainotte to improve concrete later strength; Utilize phosphogypsum to excite the raw-material activity of each component and delayed coagulation simultaneously, guarantee concrete serviceability.And do not need additionally to increase the consumption of admixture while using in concrete, equivalent replaces under the prerequisite of the gelling material of 20-50% in concrete, can meet serviceability, more than intensity improves 5MPa simultaneously.

2. the present invention make full use of various waste residues, with low cost, can improve the indexs such as concrete serviceability, mechanical property, weather resistance and volume stability, can stably manufactured, guarantee supply, energy-saving and cost-reducing and protection of the environment are significant.

3. use remarkable in economical benefits after composite blend of the present invention (every side's concrete can bring the benefit of 15.2 yuan/side, and existing common adulterant brings the benefit of 3.6 yuan/side).

Embodiment

For a better understanding of the present invention, below in conjunction with case study on implementation, further illustrate content of the present invention, but content of the present invention is not only confined to case study on implementation below.

Embodiment 1

Formula: manganese slag 30%, nickel slag 10%, chainotte 10%, Wingdale 40%, black stone 5%, phosphogypsum 5%;

Preparation method: enter before mill, above-mentioned material moisture is controlled at and is less than 2%; Enter the front material particles < 5mm of mill;

After mixing of materials in above-mentioned formula is even, put into ball mill, use 45 μ m square hole sieves, control and tail over 15%, obtain composite blending material for concrete.

According to conventional C30 concrete proportioning, in every side's concrete, gelling material quality is 60 kilograms, 70 kilograms+flyash of 210 kilograms+breeze of cement, composite blend can 70 kilograms of breezes of equivalent replacement, also can 60 kilograms of cement of equivalent substitution and 60 kilograms of flyash, or replace 60 kilograms of cement, meeting under the prerequisite of serviceability, more than intensity improves 5MPa.

Embodiment 2

Formula: manganese slag 25%, nickel slag 15%, chainotte 10%, Wingdale 40%, black stone 5%, phosphogypsum 5%;

Preparation method: enter before mill, above-mentioned material moisture is controlled at and is less than 2%; Enter the front material particles < 5mm of mill; The particle < 5mm of ungratified fragmentation;

After mixing of materials in above-mentioned formula is even, put into ball mill, use 45 μ m square hole sieves, control and tail over 14%, obtain composite blending material for concrete.

According to conventional C30 concrete proportioning, in every side's concrete, gelling material quality is 60 kilograms, 70 kilograms+flyash of 210 kilograms+breeze of cement, composite blend can 70 kilograms of breezes of equivalent replacement and 20 kilograms of cement, also can 60 kilograms of cement of equivalent substitution and 40 kilograms of breezes, meeting under the prerequisite of serviceability, more than intensity improves 5MPa.

Embodiment 3

Formula: manganese slag 25%, nickel slag 5%, chainotte 10%, Wingdale 50%, black stone 5%, phosphogypsum 5%;

After mixing of materials in above-mentioned formula is even, put into ball mill, use 45 μ m square hole sieves, control and tail over 13%, obtain composite blending material for concrete.

Adulterant in above-described embodiment 3 is used for to concrete.

Testing data: benchmark is according to common pump concrete C30 proportioning, 210 kilograms of cement, 70 kilograms of breezes, 60 kilograms, flyash, 805 kilograms, river sand, 1065 kilograms, stone, water 165,6.8 kilograms of admixtures, test.In the situation that wherein river sand, stone, water, admixture are constant, the breeze in adulterant equivalent replacement gelling material, flyash, cement is sample as a comparison.Performance data is as following table 1:

Table 1

From data, can find out relative datum concrete, composite blend is applied, and can improve the serviceability of fresh concrete, each age strength of maturing.

Testing data:

Economic Benefit Accounting explanation:

1. the measuring and calculating that material changes: cheap 40 yuan/ton than breeze of our company's adulterants, cheap 10 yuan/ton than coal ash, cheap 80 yuan/ton than cement.

2. the measuring and calculating of Strength Changes: be a label of raising above according to gain in strength 5MPa, with reference to a label C30 of every raising (comprising C30) is following, increase by 10 yuan (foundations: in benchmark proportioning, the intensity of intensity/cement consumption=per kilogram cement contribution in 28 days).

3. current existing common adulterant, one or more prepare mineral admixture, cheap 20 yuan/ton of cost ratio flyash jointly to utilize phosphorus slag, slag micropowder, black stone, exciting agent etc.

Our company composite blend test as a comparison 1, existing common adulterant (commercially available CHL-KC) test at present as a comparison 2, Experimental Comparison is as following table 2:

Table 2

Relatively existing common adulterant (contrast 2) as can be seen from the table, composite blend application (contrast 1), not only improve the serviceability of fresh concrete and improve intensity, and every side's concrete can bring the benefit of 15.2 yuan/side, and existing common adulterant brings the benefit of 3.6 yuan/side, can find out and use remarkable in economical benefits after composite blend.

Claims

1. a nickel slag manganese dreg concrete composite blend, is characterized in that: the raw material by following weight percent is made:

2. nickel slag manganese dreg concrete composite blend according to claim 1, is characterized in that: the raw material by following weight percent is made: nickel slag 5%, manganese slag 25%, chainotte 10%, Wingdale 50%, black stone 5%, phosphogypsum 5%.

3. nickel slag manganese dreg concrete composite blend according to claim 1, is characterized in that: the raw material by following weight percent is made: nickel slag 10%, manganese slag 30%, chainotte 10%, Wingdale 40%, black stone 5%, phosphogypsum 5%.

4. nickel slag manganese dreg concrete composite blend according to claim 1, is characterized in that: the raw material by following weight percent is made: nickel slag 15%, manganese slag 25%, chainotte 10%, Wingdale 40%, black stone 5%, phosphogypsum 5%.

5. according to a preparation method for the arbitrary described concrete composite blending material of claim 1-4, it is characterized in that, comprise the following steps:

1. by the arbitrary described weight percent of claim 1-4, take raw material, control water into the mill and be less than 2%, enter the front material particles < 5mm of mill, if be greater than 5mm, need fragmentation;

6. the preparation method of concrete composite blending material according to claim 5, is characterized in that, described step is controlled water into the mill in 1. and is less than 2% mode for inserting drying machine drying.