CN104030623A - Iron ore tailings concrete and preparation method thereof - Google Patents

Abstract

The invention discloses iron ore tailings concrete which is prepared from the following raw materials in parts by weight: 180-200 parts of iron ore tailings, 180-200 parts of slag, 60-70 parts of fly ash, 9-13 parts of fumaric acid, 4-5 parts of citric acid, 5-9 parts of sodium fatty acid xanthate, 7-10 parts of sodium ethylene diamine tetracetate, 140-160 parts of cement, 470-500 parts of rubble, 30-40 parts of silica powder, an appropriate amount of water and 20-30 parts of auxiliaries. In the concrete disclosed by the invention, by adopting the iron ore tailings, yellow sand is saved, and environmental pollution is reduced; by adopting the slag and through grinding modification, the density, cohesiveness, lubricity and water absorption of the concrete are improved and the strength is enhanced; and by adopting the auxiliaries, the strength of the concrete against compression, bending and pulling is improved, and the corrosion resistance, the anti-rust property and the waterproof and seepage-proof properties are enhanced.

Description

A kind of adopting iron ore tailings concrete and preparation method thereof

Technical field

The invention belongs to building material field, particularly a kind of adopting iron ore tailings concrete and preparation method thereof.

Background technology

Concrete has abundant raw material, cheap, the simple feature of production technique, thereby make its consumption increasing.It is high that while concrete also has ultimate compression strength, good endurance, the features such as strength grade wide ranges.These features make its use range very extensive, not only in various civil engineering works, use, and be exactly shipbuilding, mechanical industry, the exploitation of ocean, geothermal engineering etc., concrete is also important material.

Along with the development of component materials of concrete, people are to being not only confined to ultimate compression strength to concrete performance requriements, but on the basis of basing oneself upon intensity, more focus on concrete weather resistance, deformation performance, fire-and explosion-proof performance, water-impervious performance, toughness, erosion resistance, heat retaining property, health environment-friendly and reduce costs etc. the balance and coordination of overall target.The requirement of concrete property indices is than clearer and more definite, refinement and concrete in the past.Meanwhile, the lifting of Architectural Equipment level, continuing to bring out and promoting of novel construction process, makes concrete technology adapt to different designs, construction and service requirements, develops very fast.

Concrete also be unable to do without the raw-material development of the reinforcement of concrete, be unable to do without the development and change of concrete engineering application.Therefore, development performance is more excellent, function is more powerful, more adapt to novel process, the concrete of new building object just seems particularly important.

Summary of the invention

The object of the present invention is to provide a kind of adopting iron ore tailings concrete and preparation method thereof, this concrete has been saved yellow sand, has reduced environmental pollution, has good density, cohesiveness, oilness, water-absorbent, density, and intensity is high.

Technical scheme of the present invention is as follows:

A kind of adopting iron ore tailings concrete, is characterized in that being made up of the raw material of following weight part: adopting iron ore tailings 180-200, slag 180-200, flyash 60-70, fumaric acid 9-13, citric acid 4-5, lipid acid sodium xanthonate 5-9, sodium ethylene diamine tetracetate 7-10, cement 140-160, rubble 470-500, silicon powder 30-40, water are appropriate, auxiliary agent 20-30;

Described auxiliary agent is made up of the raw material of following weight part: slag wool 5-6, steel fiber 2-4, bisphenol A epoxy acrylate 6-8, Sodium dodecylbenzene sulfonate 0.3-0.4, trimethylolethane 0.5-0.8, Xylitol 0.3-0.4, triethyl phosphate 0.3-0.5, butyl methacrylate 3-5, vinyl cyanide 2-4, magnesium oxide 5-6, urotropine 1-1.5, white oil of camphor 1-1.4, xitix 0.6-0.9, aluminium triphosphate 1-2, wood calcium 0.5-0.8, ammonium persulphate 0.1-0.2, Potassium Persulphate 0.1-0.2, water 16-20, , preparation method is: water, slag wool, steel fiber, bisphenol A epoxy acrylate, Sodium dodecylbenzene sulfonate, trimethylolethane, butyl methacrylate, aluminium triphosphate, wooden calcium are mixed, be heated to 70-80 DEG C, add Potassium Persulphate reaction 20-30 minute, mix with other remaining components again, be heated to 80-90 DEG C, stirring reaction 40-50 minute, to obtain final product.

The concrete preparation method of described adopting iron ore tailings, is characterized in that comprising the following steps:

(1) slag, fumaric acid, citric acid, lipid acid sodium xanthonate, sodium ethylene diamine tetracetate are mixed, pulverize and grind to form 130-160 order particle, then mix with water, stir, obtain mixed serum;

(2) adopting iron ore tailings, flyash, cement, rubble, silicon powder are mixed, the mixed serum and other remaining components that obtain with (1) step mix, stirring reaction 8-12 minute, and then cast, vibrates;

(3) in the wet environment of 5-25 DEG C, carry out maintenance 7-9 days after building, to obtain final product.

Beneficial effect of the present invention

Concrete of the present invention has used adopting iron ore tailings, has saved yellow sand, has reduced environmental pollution; By using slag, through grinding modification, improve concrete density, cohesiveness, oilness, water-absorbent, density, increase intensity; By making used additives, increase concrete resistance to compression, anti-folding, tensile strength, increase erosion resistance, rustless property, waterproof, seepage control performance.

Embodiment

A kind of adopting iron ore tailings concrete, by following weight part (kilogram) raw material make: adopting iron ore tailings 190, slag 190, flyash 65, fumaric acid 11, citric acid 4.5, lipid acid sodium xanthonate 7, sodium ethylene diamine tetracetate 9, cement 150, rubble 490, silicon powder 35, water are appropriate, auxiliary agent 25;

Described auxiliary agent by following weight part (kilogram) raw material make: slag wool 5.5, steel fiber 3, bisphenol A epoxy acrylate 7, Sodium dodecylbenzene sulfonate 0.3, trimethylolethane 0.7, Xylitol 0.3, triethyl phosphate 0.4, butyl methacrylate 4, vinyl cyanide 3, magnesium oxide 5.5, urotropine 1.3, white oil of camphor 1.2, xitix 0.8, aluminium triphosphate 1.5, wooden calcium 0.7, ammonium persulphate 0.2, Potassium Persulphate 0.1, water 19; Preparation method is: water, slag wool, steel fiber, bisphenol A epoxy acrylate, Sodium dodecylbenzene sulfonate, trimethylolethane, butyl methacrylate, aluminium triphosphate, wooden calcium are mixed, be heated to 75 DEG C, add Potassium Persulphate reaction 26 minutes, mix with other remaining components again, be heated to 85 DEG C, stirring reaction 46 minutes, to obtain final product.

The concrete preparation method of described adopting iron ore tailings, comprises the following steps:

(1) slag, fumaric acid, citric acid, lipid acid sodium xanthonate, sodium ethylene diamine tetracetate are mixed, pulverize and grind to form 150 order particles, then mix with water, stir, obtain mixed serum;

(2) adopting iron ore tailings, flyash, cement, rubble, silicon powder are mixed, the mixed serum and other remaining components that obtain with (1) step mix, stirring reaction 11 minutes, and then cast, vibrates;

(3) in the wet environment of 6-15 DEG C, carry out maintenance 8 days after building, to obtain final product.

Experimental data:

The strength grade of concrete of this embodiment is 25, and the slump is 14cm, ultimate compression strength 35MPa, folding strength 15.4MPa.

Claims (2)

1. an adopting iron ore tailings concrete, is characterized in that being made up of the raw material of following weight part: adopting iron ore tailings 180-200, slag 180-200, flyash 60-70, fumaric acid 9-13, citric acid 4-5, lipid acid sodium xanthonate 5-9, sodium ethylene diamine tetracetate 7-10, cement 140-160, rubble 470-500, silicon powder 30-40, water are appropriate, auxiliary agent 20-30;

Described auxiliary agent is made up of the raw material of following weight part: slag wool 5-6, steel fiber 2-4, bisphenol A epoxy acrylate 6-8, Sodium dodecylbenzene sulfonate 0.3-0.4, trimethylolethane 0.5-0.8, Xylitol 0.3-0.4, triethyl phosphate 0.3-0.5, butyl methacrylate 3-5, vinyl cyanide 2-4, magnesium oxide 5-6, urotropine 1-1.5, white oil of camphor 1-1.4, xitix 0.6-0.9, aluminium triphosphate 1-2, wood calcium 0.5-0.8, ammonium persulphate 0.1-0.2, Potassium Persulphate 0.1-0.2, water 16-20, , preparation method is: water, slag wool, steel fiber, bisphenol A epoxy acrylate, Sodium dodecylbenzene sulfonate, trimethylolethane, butyl methacrylate, aluminium triphosphate, wooden calcium are mixed, be heated to 70-80 DEG C, add Potassium Persulphate reaction 20-30 minute, mix with other remaining components again, be heated to 80-90 DEG C, stirring reaction 40-50 minute, to obtain final product.

2. the concrete preparation method of adopting iron ore tailings according to claim 1, is characterized in that comprising the following steps:

(1) slag, fumaric acid, citric acid, lipid acid sodium xanthonate, sodium ethylene diamine tetracetate are mixed, pulverize and grind to form 130-160 order particle, then mix with water, stir, obtain mixed serum;

(2) adopting iron ore tailings, flyash, cement, rubble, silicon powder are mixed, the mixed serum and other remaining components that obtain with (1) step mix, stirring reaction 8-12 minute, and then cast, vibrates;

(3) in the wet environment of 5-25 DEG C, carry out maintenance 7-9 days after building, to obtain final product.