CN103073210B - Modified high carbon ferro-chrome slag aggregate for road concrete and preparation method of modified high carbon ferro-chrome slag aggregate - Google Patents
Modified high carbon ferro-chrome slag aggregate for road concrete and preparation method of modified high carbon ferro-chrome slag aggregate Download PDFInfo
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- CN103073210B CN103073210B CN201310040501.8A CN201310040501A CN103073210B CN 103073210 B CN103073210 B CN 103073210B CN 201310040501 A CN201310040501 A CN 201310040501A CN 103073210 B CN103073210 B CN 103073210B
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Abstract
The invention discloses a modified high carbon ferro-chrome slag aggregate for road concrete and a preparation method of the modified high carbon ferro-chrome slag aggregate. The modified high carbon ferro-chrome slag aggregate is characterized by being prepared from a high carbon ferro-chrome alloy slag aggregate and a chemical modifying agent accounting for 2-6 percent of the mass of the high carbon ferro-chrome alloy slag aggregate through mixing, wherein the chemical modifying agent is prepared from 100 parts by mass of polymer diluting solution, 0.5-1.2 parts by mass of organic silicon waterproof defoaming agent, 0.2-0.5 part by mass of polyvinyl alcohol and 2-4 parts by mass of zeolite powder through uniform mixing; the polymer diluting solution is prepared by diluting a polymer emulsion stock solution through adding water; and the polymer emulsion stock solution is any one of a butylbenzene emulsion, a polyacrylate emulsion, a polyethylene-vinyl acetate emulsion and a styrene-acrylic emulsion. By adopting the invention, waste alloy waste is used as a raw material, and thus building materials of carbon chromic slag can be recycled and efficiently utilized, and the defects and the hidden dangers of the carbon chromic slag as the concrete aggregate are solved; and the preparation method is simple and easy to realize and is strong in practicability.
Description
Technical field
The invention belongs to solid waste---the utilization of industrial residue, relates to a kind of modification high carbon chromium scum aggregate for road concrete and preparation method thereof.The modification high carbon chromium scum aggregate that the present invention obtains is specially adapted in road concrete, is also applicable in the concrete of various common building civil engineering works.
Background technology
In prior art, the kind that is applicable to road engineering aggregate is less, generally adopts natural high-quality basalt and limestone.Because natural aggregate is as a kind of nonrenewable resource, its raw material reserves decline and continuing to increase of demand will bring imbalance between supply and demand, particularly high-performance aggregate.Therefore, find new concrete aggregate by suitable theory innovation and technique means, widen high-performance aggregate raw material sources, be particularly applicable to road engineering aggregate and be extremely necessary.
According to statistics, the quantity discharged of high-carbon chrome alloy slag (hereinafter to be referred as carbon chromium slag or high carbon chromium scum or carbon chromium slag aggregate or high carbon chromium scum aggregate) is increasing with the speed that exceedes 400,000 tons every year, and major part only does to stack processing, cause the huge waste of resource, taken a large amount of land resources simultaneously.Carbon chromium slag is mainly by peridotites and spinel mineral composition, and these two kinds of material hardness are large, antiacid, alkali resistant, have high chemistry and structural stability; The special thermal history that carbon chromium slag experiences simultaneously makes its surface irregularity, porous (non-through hole), after its hole is filled by gelling material, firmly mechanical lock connecting structure of the intermeshing formation of aggregate and Behavior of Hardened Cement Paste, significantly strengthen cohesive strength between aggregate and gelling material, there is huge help to improving concrete mechanical property and weather resistance, especially significant to folding strength.Above-mentioned 2 make carbon chromium slag itself be suitable as very much aggregate.On the other hand, ferrochrome slag oxidation Mg content high (MgO mass percent 25%～40%), it is suffering after external complex environmental attack for a long time, may cause volume of concrete stability bad, becomes a large secret worry that affects concrete structure safety.Simultaneously, carbon chromium slag surface irregularity, and the characteristic of porous (non-through hole) has increased its total specific surface area, the probability that causes the grown-in defects such as water-intake rate and microcrack of aggregate to occur obviously increases, thereby cause concrete workability and aggregate crush values under same proportioning significantly to decline, aggregate surface more easily produces the Gradient distribution of structure and component simultaneously, increases the weight of the weakening effect of interfacial transition zone (ITZ) to concrete overall performance.In prior art, there is not yet high carbon chromium scum aggregate and be effective to the bibliographical information in road concrete.
Summary of the invention
Object of the present invention is intended to overcome deficiency of the prior art, and a kind of modification high carbon chromium scum aggregate for road concrete and preparation method thereof is provided.It is starting material that the present invention adopts high-carbon chrome alloy slag waste material, by spray chemical modifier (liquid) dipping, carbon chromium slag aggregate surface is carried out to modification, obtains a kind of modification aggregate; Carbon chromium slag aggregate can replace the common and high-strength high-performance concrete of basic, normal, high each different gradess such as natural and arenolite aggregate preparation C15～C80 wholly or in part, the excellent properties such as tool high tenacity, heat-resisting, resistance to erosion, resistance of rainwater washing against, it is split, and to draw buckling strength to adopt common natural and arenolite prepare the concrete obtaining high by 15%～35%, is specially adapted to different kinds of roads engineering and applies.
Content of the present invention is: a kind of modification high carbon chromium scum aggregate for road concrete, it is characterized in that by: high-carbon chrome alloy slag aggregate, mixes composition with the chemical modifier of high-carbon chrome alloy slag aggregate quality 2%～6%;
Described chemical modifier by: the mass percentage content of solids is 4%～10% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 0.5～1.2 mass parts, polyvinyl alcohol 0.2～0.5 mass parts and specific surface area>=400 m
2zeolite powder 2～4 mass parts of/kg mix composition;
The mass percentage content of described solids is that the polymer emulsion stoste thin up that 4%～10% polymkeric substance diluent is 40%～50% by the mass percentage content of solids makes;
The mass percentage content of described solids is that 40%～50% polymer emulsion stoste can be any in styrene-butadiene emulsion (being called for short SBR), polyacrylate dispersion (PAE), polyethylene one vinyl acetate emulsion (VAE), cinnamic acrylic ester emulsion (SAE).
In content of the present invention: described organic silicon water-proofing defoamer 0.5～1.2 mass parts can replace with tributyl phosphate 0.2～0.5 mass parts.
In content of the present invention: main chemical compositions and the mass percent of described high-carbon chrome alloy slag aggregate consist of: SiO
228.6%～37.5%, Al
2o
316.1%～26.4%, MgO 25.43%～40.6%, Fe
2o
35.95%～8.21% and Cr
2o
31.8%～7.6%.
In content of the present invention: described high-carbon chrome alloy slag aggregate can be the melt of discharging while adopting submerged arc electric reduction furnace to produce ferrochrome, through the solid slag that slag pan solidifies, water-sprinkling is cooling, naturally cooling and Mechanical Crushing or jigging method produce after choosing containing chrome mineral.
In content of the present invention: described high-carbon chrome alloy slag aggregate can be the melt of discharging while adopting submerged arc electric reduction furnace to produce ferrochrome, through the solid slag that slag pan solidifies, water-sprinkling is cooling, naturally cooling and Mechanical Crushing or jigging method produce after choosing containing chrome mineral; The particle diameter obtaining after fragmentation, shaping, screening is again that 5mm～25mm gap grading coarse aggregate and particle diameter are 0.075mm～4.75mm gap grading fine aggregate, is mixed in proportion the high carbon chromium scum aggregate being deployed into;
Described again in fragmentation, shaping, screening, when broken, in described solid slag, also spray is mixed with the broken auxiliary agent of solid slag quality 1%～3%; This fragmentation auxiliary agent is by water 100 mass parts, trolamine or tri-isopropanolamine 20～34 mass parts, and ethylene glycol, propylene glycol or glycerol 3～8 mass parts, and cetyl alcohol or sodium dodecylbenzenesulfonate 2～4 mass parts are mixed composition; The preparation method of this fragmentation auxiliary agent is: the water of 100 mass parts is heated to 40 DEG C, add successively trolamine or tri-isopropanolamine 20～34 mass parts, ethylene glycol, propylene glycol or glycerol 3～8 mass parts, cetyl alcohol or sodium dodecylbenzenesulfonate 2～4 mass parts, be uniformly mixed, obtain broken auxiliary agent; When use, broken auxiliary agent sprayed in solid slag and mixed, stacking after 20～30min, can carry out crushing operation.
Another content of the present invention is: a kind of modification high carbon chromium scum aggregate processing method for road concrete, is characterized in that comprising the following steps:
A, diluted polymer emulsion stoste: the polymer emulsion stoste that the mass percentage content of getting solids is 40%～50%, it is 4%～10% polymkeric substance diluent that thin up becomes the mass percentage content of solids;
The mass percentage content of described solids is that 40%～50% polymer emulsion stoste can be any in styrene-butadiene emulsion (being called for short SBR), polyacrylate dispersion (PAE), polyethylene one vinyl acetate emulsion (VAE), cinnamic acrylic ester emulsion (SAE);
B, preparation chemical modifier: be 4%～10% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 0.5～1.2 mass parts, polyvinyl alcohol 0.2～0.5 mass parts and specific surface area>=400 m by the mass percentage content of solids
2the ratio of zeolite powder 2～4 mass parts of/kg is got each component and is mixed, and at the temperature of 40 DEG C～65 DEG C, stirs 1～2h, makes chemical modifier;
C, preparation modification high carbon chromium scum aggregate: get high-carbon chrome alloy slag aggregate, get the chemical modifier of high-carbon chrome alloy slag aggregate quality 2%～6%, under stirring, chemical modifier is sprayed onto in high-carbon chrome alloy slag aggregate and mixes, stack again after 1～2 day, make the modification high carbon chromium scum aggregate for road concrete.
Content of the present invention is in another: the defoamer of organic silicon water-proofing described in step b 0.5～1.2 mass parts can replace with tributyl phosphate 0.2～0.5 mass parts.
Content of the present invention is in another: main chemical compositions and the mass percent of described high-carbon chrome alloy slag aggregate consist of: SiO
228.6%～37.5%, Al
2o
316.1%～26.4%, MgO 25.43%～40.6%, Fe
2o
35.95%～8.21% and Cr
2o
31.8%～7.6%.
Content of the present invention is in another: described high-carbon chrome alloy slag aggregate can be the melt of discharging while adopting submerged arc electric reduction furnace to produce ferrochrome, through the solid slag that slag pan solidifies, water-sprinkling is cooling, naturally cooling and Mechanical Crushing or jigging method produce after choosing containing chrome mineral.
Content of the present invention is in another: described high-carbon chrome alloy slag aggregate can be the melt of discharging while adopting submerged arc electric reduction furnace to produce ferrochrome, through the solid slag that slag pan solidifies, water-sprinkling is cooling, naturally cooling and Mechanical Crushing or jigging method produce after choosing containing chrome mineral; The particle diameter obtaining after fragmentation, shaping, screening is again that 5mm～25mm gap grading coarse aggregate and particle diameter are 0.075mm～4.75mm gap grading fine aggregate, is mixed in proportion the high carbon chromium scum aggregate being deployed into;
Described again in fragmentation, shaping, screening, when broken, in described solid slag, also spray is mixed with the broken auxiliary agent of solid slag quality 1%～3%; This fragmentation auxiliary agent is by water 100 mass parts, trolamine or tri-isopropanolamine 20～34 mass parts, and ethylene glycol, propylene glycol or glycerol 3～8 mass parts, and cetyl alcohol or sodium dodecylbenzenesulfonate 2～4 mass parts are mixed composition; The preparation method of this fragmentation auxiliary agent is: the water of 100 mass parts is heated to 40 DEG C, add successively trolamine or tri-isopropanolamine 20～34 mass parts, ethylene glycol, propylene glycol or glycerol 3～8 mass parts, cetyl alcohol or sodium dodecylbenzenesulfonate 2～4 mass parts, be uniformly mixed, obtain broken auxiliary agent; When use, broken auxiliary agent sprayed in solid slag and mixed, stacking after 20～30min, can carry out crushing operation.
The each component raw material adopting in content of the present invention and another content is commercially available prod, wherein:
In described polymer emulsion stoste, manufacturing enterprise's title of styrene-butadiene emulsion (being called for short SBR, rear same) has: Jinan Xin Liang company limited, Guangdong Liang Feng Chemical Co., Ltd., Licheng District prosperous brightening chemical product business department etc.; Manufacturing enterprise's title and the product of polyacrylate dispersion (PAE) have: the CX-HP600 that Wanbolin District, Taiyuan City Jun Hua Building Materials Factory, Chengxin Drilling-Extracting Adjuvant Co., Ltd., Puyang City produce; Manufacturing enterprise's title of polyethylene one vinyl acetate emulsion (VAE) and product have CW40-707 emulsion, Fujian, the Guangzhou dimension polyvinyl alcohol that Guangzhou Qi Sheng Chemical Co., Ltd. produces to sell the GW-705 that company limited produces; 168#, brand that manufacturing enterprise's title of cinnamic acrylic ester emulsion (SAE) and product type have Shanghai Kun He wrapping material company limited to produce are female rising, and the trade mark that Guangzhou Shuan Pu trade Co., Ltd produces is 2800/4700;
In described chemical modifier, manufacturing enterprise's title and the product type of organic silicon water-proofing defoamer have: the DF-830 that Wanbolin District, Taiyuan City Jun Hua Building Materials Factory, Dongguan City De Feng Chemical Co., Ltd. produce; Manufacturing enterprise's title and the product type of polyvinyl alcohol have: 168#, brand that Shanghai Kun He wrapping material company limited produces are female rising, and the trade mark that Guangzhou Shuan Pu trade Co., Ltd produces is 2800/4700; Manufacturing enterprise's title of zeolite powder has: Xingtang County Xin Lei mineral powder source mill, Pingqiao District, Xinyang Mao Yuan perlite factory, ten Li Tuoxinlei stone flour factories of Yutian County etc., specific surface area>=400m
2/ kg.
Compared with prior art, the present invention has following feature and beneficial effect:
(1) adopt the present invention, flood pre-treatment is carried out in carbon chromium slag (aggregate) surface by chemical modifier, after the adhesion that chemical modifier is good is sprayed it, moment adsorbs and is solidificated in carbon chromium slag aggregate surface in the short period of time, not only can shutoff and repair microcrack, form one deck dense film on surface simultaneously, overcome the high defect of its water-intake rate, can optimize interfacial transition zone simultaneously, and blocking-up and extraneous moisture and ion-exchange passage, thoroughly solve and caused the volumetric expansion that the inner a large amount of magnesium oxide of aggregate may cause because of chemical reaction because of moisture and ion migration, thereby reduce the bad hidden danger of its volume stability that may cause, suitability and the security of carbon chromium dreg concrete aggregate are greatly promoted, by above-mentioned technique means, really realize the building resourceization of carbon chromium slag and efficiently utilized, thoroughly solve carbon chromium slag as the existing defect of aggregate and hidden danger,
(2) adopt the present invention, starting material carbon chromium slag used is metallurgical waste, be applied to aggregate, both alleviated natural and manufactured aggregate, the imbalance between supply and demand that particularly high-quality pavement engineering aggregate faces, saves construction costs cost, recycling industrial residue simultaneously, and it is large to eat the quantity of slag, save a large amount of valuable land resources, obviously alleviate environment and resource pressure;
(3) adopt the present invention, broken auxiliary agent is adsorbed on material surface and can realizes two objects: the one, reduce material surface interfacial tension and surface free energy, intensity and the surface hardness of material are declined, impel it " to soften ", accelerate the probability that new crackle produces, can accelerate width and the spreading rate of Original Cracks simultaneously; The 2nd, balance, because of the unsaturated valence link that fragmentation produces, prevents that newborn crackle from healing again, suppresses the carrying out of broken inverse process, and the fracture property of material is changed;
(4) adopt the present invention, saved the operation of machine instruction statement mining with respect to traditional natural aggregate, reduced exploitation energy consumption, product preparation process of the present invention is simple, and operation is easy, easily operation, be easy to realize, there is fairly obvious economic benefit and social benefit, practical.
Embodiment
Embodiment given below intends so that the invention will be further described; but can not be interpreted as it is limiting the scope of the invention; some nonessential improvement and adjustment that person skilled in art makes the present invention according to the content of the invention described above, still belong to protection scope of the present invention.
Embodiment 1:
Ferrochrome slag and basalt is through fragmentation, shaping, and after screening, grating is manually allocated in proportion, and its quality meets the requirement of GBT14685-2011 " rubble for building, cobble " and GB14684-2011 " building sand ".Properties-correcting agent is evenly sprayed on to aggregate surface, and properties-correcting agent consumption is aggregate quality 3.4%, to surface wettability, delivers to finished product heap and stacks and use afterwards for 1 day, meanwhile, should ensure to spray evenly.With these the two kinds mixing concrete that gather materials, its fit quality than for gelling material (cement, P.O42.5R, lower with): water: coarse aggregate: fine aggregate=1:0.6:2.5:1.83.
Described properties-correcting agent preparation process is: first by divinyl, styrene emulsion original state emulsion (mass percentage concentration 45%) is heated to 45 DEG C, add tap water to be diluted to mass percent 8%, after admixture and the ratio of throwing in be successively: machine silicon defoaming agent 0.6%(is with 8% original state emulsion benchmark, lower with), polyvinyl alcohol pulvis 0.3%, zeolite powder 3%, after stirring, be cooled to room temperature, obtain properties-correcting agent.
Pass through blanks and moulding and conserving and record by GB50081-2002 " standard for test methods of mechanical properties of ordinary concrete ": 3d, the 28d of carbon chromium dreg concrete and the anti-folding/ultimate compression strength of 56d are respectively 4.1MPa/21.7MPa, 6.2MPa/38.1MPa and 7.4MPa/42.4MPa; The concrete 3d of basalt manufactured aggregate, 28d and 56d folding/intensity are respectively 3.5MPa/17.6MPa and 4.8MPa/36.8MPa and 4.9MPa/41.1MPa.Visible the present invention is applied to carbon chromium slag aggregate, and the equal tool of normal concrete mechanical property in each length of time is improved significantly, and especially to folding strength, obviously increases concrete crimping ratio, and each length of time, performance was all better than high-quality basalt aggregate.
Embodiment 2:
Undertaken by described in embodiment 1; Difference is:
Its proportioning is gelling material (cement: flyash): water: coarse aggregate: fine aggregate=1(7.5:2.5): 0.35:2.1:1.83.
Through blanks and moulding and conserving test mechanical property in the different length of time, use 3d, 28d and the anti-folding/ultimate compression strength of 56d of the ferrochrome slag aggregate concrete of modification to be respectively 7.5MPa/46.4MPa, 8.2MPa/63.7MPa and 9.8MPa/78.4MPa; 3d, 28d and the 56d folding/intensity of unprocessed carbon chromium slag aggregate concrete are respectively 5.8MPa/44.9MPa and 7.6MPa/61.5MPa and 8.3MPa/78.2MPa.
Embodiment 3:
The preparation of different grades normal concrete:
Implementation process is undertaken by embodiment 1, obtain carbon modified chromium slag aggregate, wherein, fine aggregate modulus is 2.3, coarse aggregate is 5mm～31.5mm continuous grading, and its quality all meets the requirement of GBT14685-2011 " rubble for building, cobble " and GB14684-2011 " building sand ".With the concrete of this coarse-fine aggregate mixing different intensity grades, its proportioning is gelling material: water: coarse aggregate: fine aggregate=1:(0.3,0.4,0.5,0.6): 2.5:1.83, wherein the polycarboxylic acids high efficiency tensio-active agent that has added gelling material mass percent 0.3% of 0.3 water cement ratio.
Through overmolding, maintenance, detect, the concrete 3d intensity of institute's mixing is followed successively by 50.1MPa, 38.3MPa, 33.6MPa and 12.7MPa, within 28 days, intensity is followed successively by 64.8MPa, 48.1MPa, 40.4MPa and 22.3 MPa, and 60d intensity is 79.5 MPa, 56.5 MPa, 48.5 MPa and 26.1 MPa.
Embodiment 4:
For a modification high carbon chromium scum aggregate for road concrete, by: high-carbon chrome alloy slag aggregate, mixes composition with the chemical modifier of high-carbon chrome alloy slag aggregate quality 4%;
Described chemical modifier by: the mass percentage content of solids is 7% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 0.8 mass parts, polyvinyl alcohol 0.3 mass parts and specific surface area>=400 m
2zeolite powder 3 mass parts of/kg mix composition;
The mass percentage content of described solids is that the polymer emulsion stoste thin up that 7% polymkeric substance diluent is 45% by the mass percentage content of solids makes;
The mass percentage content of described solids is that 45% polymer emulsion stoste is any in styrene-butadiene emulsion (being called for short SBR), polyacrylate dispersion (PAE), polyethylene one vinyl acetate emulsion (VAE), cinnamic acrylic ester emulsion (SAE).
Embodiment 5:
For a modification high carbon chromium scum aggregate for road concrete, by: high-carbon chrome alloy slag aggregate, mixes composition with the chemical modifier of high-carbon chrome alloy slag aggregate quality 6%;
Described chemical modifier by: the mass percentage content of solids is 10% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 0.5 mass parts, polyvinyl alcohol 0.2 mass parts and specific surface area>=400 m
2zeolite powder 2 mass parts of/kg mix composition;
The mass percentage content of described solids is that the polymer emulsion stoste thin up that 4% polymkeric substance diluent is 40% by the mass percentage content of solids makes;
The mass percentage content of described solids is that 40% polymer emulsion stoste is any in styrene-butadiene emulsion (being called for short SBR), polyacrylate dispersion (PAE), polyethylene one vinyl acetate emulsion (VAE), cinnamic acrylic ester emulsion (SAE).
Embodiment 6:
For a modification high carbon chromium scum aggregate for road concrete, by: high-carbon chrome alloy slag aggregate, mixes composition with the chemical modifier of high-carbon chrome alloy slag aggregate quality 2%;
Described chemical modifier by: the mass percentage content of solids is 10% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 1.2 mass parts, polyvinyl alcohol 0.5 mass parts and specific surface area>=400 m
2zeolite powder 4 mass parts of/kg mix composition;
The mass percentage content of described solids is that the polymer emulsion stoste thin up that 10% polymkeric substance diluent is 50% by the mass percentage content of solids makes;
The mass percentage content of described solids is that 50% polymer emulsion stoste is any in styrene-butadiene emulsion (being called for short SBR), polyacrylate dispersion (PAE), polyethylene one vinyl acetate emulsion (VAE), cinnamic acrylic ester emulsion (SAE).
Embodiment 7-13:
A kind of modification high carbon chromium scum aggregate for road concrete, by: high-carbon chrome alloy slag aggregate, in high-carbon chrome alloy slag aggregate quality 2%～6%(embodiment 7-13, can be respectively 3%, 3%, 4%, 4%, 5%, 5%, 6%) chemical modifier mix composition;
Described chemical modifier by: the mass percentage content of solids is 4%～10% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 0.5～1.2 mass parts, polyvinyl alcohol 0.2～0.5 mass parts and specific surface area>=400 m
2zeolite powder 2～4 mass parts of/kg mix composition;
The mass percentage content of described solids is that the polymer emulsion stoste thin up that 4%～10% polymkeric substance diluent is 40%～50% by the mass percentage content of solids makes;
In each embodiment, the consumption such as concrete mass parts of each component raw material sees the following form:
The mass percentage content of described solids is that 40%～50% polymer emulsion stoste is any in styrene-butadiene emulsion (being called for short SBR), polyacrylate dispersion (PAE), polyethylene one vinyl acetate emulsion (VAE), cinnamic acrylic ester emulsion (SAE), is commercial goods.
Embodiment 14:
For a modification high carbon chromium scum aggregate for road concrete, by: high-carbon chrome alloy slag aggregate, mixes composition with the chemical modifier of high-carbon chrome alloy slag aggregate quality 2%～6%;
Described chemical modifier by: the mass percentage content of solids is 4%～10% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 0.5～1.2 mass parts, polyvinyl alcohol 0.2～0.5 mass parts and specific surface area>=400 m
2zeolite powder 2～4 mass parts of/kg mix composition;
The mass percentage content of described solids is that the polymer emulsion stoste thin up that 4%～10% polymkeric substance diluent is 40%～50% by the mass percentage content of solids makes;
The mass percentage content of described solids is that 40%～50% polymer emulsion stoste is any in styrene-butadiene emulsion (being called for short SBR), polyacrylate dispersion (PAE), polyethylene one vinyl acetate emulsion (VAE), cinnamic acrylic ester emulsion (SAE).
Embodiment 15:
Embodiment 4-14, described organic silicon water-proofing defoamer replaces with tributyl phosphate 0.2～0.5 mass parts, arbitrary in the other the same as in Example 4-14.
Embodiment 16:
Embodiment 4-14, described organic silicon water-proofing defoamer replaces with tributyl phosphate 0.2 mass parts, arbitrary in the other the same as in Example 4-14.
Embodiment 17:
Embodiment 4-14, described organic silicon water-proofing defoamer replaces with tributyl phosphate 0.5 mass parts, arbitrary in the other the same as in Example 4-14.
Embodiment 18:
Embodiment 4-14, described organic silicon water-proofing defoamer replaces with tributyl phosphate 0.3 mass parts, arbitrary in the other the same as in Example 4-14.
Embodiment 19:
Embodiment 4-14, described organic silicon water-proofing defoamer replaces with tributyl phosphate 0.4 mass parts, arbitrary in the other the same as in Example 4-14.
Embodiment 20:
For a modification high carbon chromium scum aggregate processing method for road concrete, comprise the following steps:
A, diluted polymer emulsion stoste: the polymer emulsion stoste that the mass percentage content of getting solids is 40%～50%, it is 4%～10% polymkeric substance diluent that thin up becomes the mass percentage content of solids;
The mass percentage content of described solids is that 40%～50% polymer emulsion stoste is any in styrene-butadiene emulsion (being called for short SBR), polyacrylate dispersion (PAE), polyethylene one vinyl acetate emulsion (VAE), cinnamic acrylic ester emulsion (SAE);
B, preparation chemical modifier: be 4%～10% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 0.5～1.2 mass parts, polyvinyl alcohol 0.2～0.5 mass parts and specific surface area>=400 m by the mass percentage content of solids
2the ratio of zeolite powder 2～4 mass parts of/kg is got each component and is mixed, and at the temperature of 40 DEG C～65 DEG C, stirs 1～2h, makes chemical modifier;
C, preparation modification high carbon chromium scum aggregate: get high-carbon chrome alloy slag aggregate, get the chemical modifier of high-carbon chrome alloy slag aggregate quality 2%～6%, under stirring, chemical modifier is sprayed onto in high-carbon chrome alloy slag aggregate and mixes, stack again after 1～2 day, make the modification high carbon chromium scum aggregate for road concrete.
Embodiment 21:
For a modification high carbon chromium scum aggregate processing method for road concrete, comprise the following steps:
A, diluted polymer emulsion stoste: the polymer emulsion stoste that the mass percentage content of getting solids is 45%, it is 7% polymkeric substance diluent that thin up becomes the mass percentage content of solids;
The mass percentage content of described solids is that 45% polymer emulsion stoste is any in styrene-butadiene emulsion (being called for short SBR), polyacrylate dispersion (PAE), polyethylene one vinyl acetate emulsion (VAE), cinnamic acrylic ester emulsion (SAE);
B, preparation chemical modifier: be 7% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 0.8 mass parts, polyvinyl alcohol 0.4 mass parts and specific surface area>=400 m by the mass percentage content of solids
2the ratio of zeolite powder 3 mass parts of/kg is got each component and is mixed, and at the temperature of 40 DEG C～65 DEG C, stirs 1.5h, makes chemical modifier;
C, preparation modification high carbon chromium scum aggregate: get high-carbon chrome alloy slag aggregate, get the chemical modifier of high-carbon chrome alloy slag aggregate quality 4%, under stirring, chemical modifier is sprayed onto in high-carbon chrome alloy slag aggregate and mixes, stack again after 1.5 days, make the modification high carbon chromium scum aggregate for road concrete.
Embodiment 22:
For a modification high carbon chromium scum aggregate processing method for road concrete, comprise the following steps:
A, diluted polymer emulsion stoste: the polymer emulsion stoste that the mass percentage content of getting solids is 40%, it is 4% polymkeric substance diluent that thin up becomes the mass percentage content of solids;
The mass percentage content of described solids is that 40% polymer emulsion stoste is any in styrene-butadiene emulsion (being called for short SBR), polyacrylate dispersion (PAE), polyethylene one vinyl acetate emulsion (VAE), cinnamic acrylic ester emulsion (SAE);
B, preparation chemical modifier: be 4% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 0.5 mass parts, polyvinyl alcohol 0.2 mass parts and specific surface area>=400 m by the mass percentage content of solids
2the ratio of zeolite powder 2 mass parts of/kg is got each component and is mixed, and at the temperature of 40 DEG C, stirs 2h, makes chemical modifier;
C, preparation modification high carbon chromium scum aggregate: get high-carbon chrome alloy slag aggregate, get the chemical modifier of high-carbon chrome alloy slag aggregate quality 6%, under stirring, chemical modifier is sprayed onto in high-carbon chrome alloy slag aggregate and mixes, stack again after 2 days, make the modification high carbon chromium scum aggregate for road concrete.
Embodiment 23:
For a modification high carbon chromium scum aggregate processing method for road concrete, comprise the following steps:
A, diluted polymer emulsion stoste: the polymer emulsion stoste that the mass percentage content of getting solids is 50%, it is 10% polymkeric substance diluent that thin up becomes the mass percentage content of solids;
The mass percentage content of described solids is that 50% polymer emulsion stoste is any in styrene-butadiene emulsion (being called for short SBR), polyacrylate dispersion (PAE), polyethylene one vinyl acetate emulsion (VAE), cinnamic acrylic ester emulsion (SAE);
B, preparation chemical modifier: be 10% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 1.2 mass parts, polyvinyl alcohol 0.5 mass parts and specific surface area>=400 m by the mass percentage content of solids
2the ratio of zeolite powder 4 mass parts of/kg is got each component and is mixed, and at the temperature of 65 DEG C, stirs 1h, makes chemical modifier;
C, preparation modification high carbon chromium scum aggregate: get high-carbon chrome alloy slag aggregate, get the chemical modifier of high-carbon chrome alloy slag aggregate quality 2%, under stirring, chemical modifier is sprayed onto in high-carbon chrome alloy slag aggregate and mixes, stack again after 2 days, make the modification high carbon chromium scum aggregate for road concrete.
Embodiment 24-30:
For a modification high carbon chromium scum aggregate processing method for road concrete, comprise the following steps:
A, diluted polymer emulsion stoste: the polymer emulsion stoste that the mass percentage content of getting solids is 40%～50%, it is 4%～10% polymkeric substance diluent that thin up becomes the mass percentage content of solids;
The mass percentage content of described solids is that 40%～50% polymer emulsion stoste is any in styrene-butadiene emulsion (being called for short SBR), polyacrylate dispersion (PAE), polyethylene one vinyl acetate emulsion (VAE), cinnamic acrylic ester emulsion (SAE);
B, preparation chemical modifier: be 4%～10% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 0.5～1.2 mass parts, polyvinyl alcohol 0.2～0.5 mass parts and specific surface area>=400 m by the mass percentage content of solids
2the ratio of zeolite powder 2～4 mass parts of/kg is got each component and is mixed, and at the temperature of 40 DEG C～65 DEG C, stirs 1～2h, makes chemical modifier;
In each embodiment, the consumption such as concrete mass parts of each component raw material sees the following form:
C, preparation modification high carbon chromium scum aggregate: get high-carbon chrome alloy slag aggregate, get in high-carbon chrome alloy slag aggregate quality 2%～6%(embodiment 24-30, can be respectively 3%, 3%, 4%, 4%, 5%, 5%, 6%) chemical modifier, under stirring, chemical modifier is sprayed onto in high-carbon chrome alloy slag aggregate and mixes, stack again after 1～2 day, make the modification high carbon chromium scum aggregate for road concrete.
Embodiment 31:
For a modification high carbon chromium scum aggregate processing method for road concrete, the defoamer of organic silicon water-proofing described in step b 0.5～1.2 mass parts replaces with tributyl phosphate 0.2～0.5 mass parts, and other is with implementing, arbitrary in 20-30.
Embodiment 32:
For a modification high carbon chromium scum aggregate processing method for road concrete, the defoamer of organic silicon water-proofing described in step b replaces with tributyl phosphate 0.2 mass parts, arbitrary in the other the same as in Example 2 0-30.
Embodiment 33:
For a modification high carbon chromium scum aggregate processing method for road concrete, the defoamer of organic silicon water-proofing described in step b replaces with tributyl phosphate 0.5 mass parts, arbitrary in the other the same as in Example 2 0-30.
Embodiment 34:
For a modification high carbon chromium scum aggregate processing method for road concrete, the defoamer of organic silicon water-proofing described in step b replaces with tributyl phosphate 0.3 mass parts, arbitrary in the other the same as in Example 2 0-30.
Embodiment 35:
For a modification high carbon chromium scum aggregate processing method for road concrete, the defoamer of organic silicon water-proofing described in step b replaces with tributyl phosphate 0.4 mass parts, arbitrary in the other the same as in Example 2 0-30.
Embodiment 36:
A kind of modification high carbon chromium scum aggregate processing method for road concrete, described high-carbon chrome alloy slag aggregate is the melt of discharging while adopting submerged arc electric reduction furnace to produce ferrochrome, through the solid slag that slag pan solidifies, water-sprinkling is cooling, naturally cooling and Mechanical Crushing or jigging method produce after choosing containing chrome mineral; The particle diameter obtaining after fragmentation, shaping, screening is again that 5mm～25mm gap grading coarse aggregate and particle diameter are 0.075mm～4.75mm gap grading fine aggregate, is mixed in proportion the high carbon chromium scum aggregate being deployed into;
Described again in fragmentation, shaping, screening, when broken, in described solid slag, also spray is mixed with the broken auxiliary agent of solid slag quality 2%; This fragmentation auxiliary agent is by water 100 mass parts, trolamine or tri-isopropanolamine 27 mass parts, and ethylene glycol, propylene glycol or glycerol 5.5 mass parts, and cetyl alcohol or sodium dodecylbenzenesulfonate 3 mass parts are mixed composition; The preparation method of this fragmentation auxiliary agent is: the water of 100 mass parts is heated to 40 DEG C, add successively trolamine or tri-isopropanolamine 27 mass parts, ethylene glycol, propylene glycol or glycerol 5.5 mass parts, cetyl alcohol or sodium dodecylbenzenesulfonate 3 mass parts, be uniformly mixed, obtain broken auxiliary agent; When use, broken auxiliary agent sprayed in solid slag and mixed, stacking after 25min, can carry out crushing operation, arbitrary in the other the same as in Example 4-35.
In above-described embodiment: main chemical compositions and the mass percent of described high-carbon chrome alloy slag aggregate consist of: SiO
228.6%～37.5%, Al
2o
316.1%～26.4%, MgO 25.43%～40.6%, Fe
2o
35.95%～8.21% and Cr
2o
31.8%～7.6%.
In above-described embodiment: state high-carbon chrome alloy slag aggregate and be the melt of discharging while adopting submerged arc electric reduction furnace to produce ferrochrome, through the solid slag that slag pan solidifies, water-sprinkling is cooling, naturally cooling and Mechanical Crushing or jigging method produce after choosing containing chrome mineral.
In above-described embodiment: described high-carbon chrome alloy slag aggregate is the melt of discharging while adopting submerged arc electric reduction furnace to produce ferrochrome, through the solid slag that slag pan solidifies, water-sprinkling is cooling, naturally cooling and Mechanical Crushing or jigging method produce after choosing containing chrome mineral; The particle diameter obtaining after fragmentation, shaping, screening is again that 5mm～25mm gap grading coarse aggregate and particle diameter are 0.075mm～4.75mm gap grading fine aggregate, is mixed in proportion the high carbon chromium scum aggregate being deployed into;
Described again in fragmentation, shaping, screening, when broken, in described solid slag, also spray is mixed with the broken auxiliary agent of solid slag quality 1%～3%; This fragmentation auxiliary agent is by water 100 mass parts, trolamine or tri-isopropanolamine 20～34 mass parts, and ethylene glycol, propylene glycol or glycerol 3～8 mass parts, and cetyl alcohol or sodium dodecylbenzenesulfonate 2～4 mass parts are mixed composition; The preparation method of this fragmentation auxiliary agent is: the water of 100 mass parts is heated to 40 DEG C, add successively trolamine or tri-isopropanolamine 20～34 mass parts, ethylene glycol, propylene glycol or glycerol 3～8 mass parts, cetyl alcohol or sodium dodecylbenzenesulfonate 2～4 mass parts, be uniformly mixed, obtain broken auxiliary agent; When use, broken auxiliary agent sprayed in solid slag and mixed, stacking after 20～30min, can carry out crushing operation.
The each component raw material adopting in above-described embodiment is commercially available prod, wherein:
In described polymer emulsion stoste, manufacturing enterprise's title of styrene-butadiene emulsion (being called for short SBR, rear same) has: Jinan Xin Liang company limited, Guangdong Liang Feng Chemical Co., Ltd., Licheng District prosperous brightening chemical product business department etc.; Manufacturing enterprise's title and the product of polyacrylate dispersion (PAE) have: the CX-HP600 that Wanbolin District, Taiyuan City Jun Hua Building Materials Factory, Chengxin Drilling-Extracting Adjuvant Co., Ltd., Puyang City produce; Manufacturing enterprise's title of polyethylene one vinyl acetate emulsion (VAE) and product have CW40-707 emulsion, Fujian, the Guangzhou dimension polyvinyl alcohol that Guangzhou Qi Sheng Chemical Co., Ltd. produces to sell the GW-705 that company limited produces; 168#, brand that manufacturing enterprise's title of cinnamic acrylic ester emulsion (SAE) and product type have Shanghai Kun He wrapping material company limited to produce are female rising, and the trade mark that Guangzhou Shuan Pu trade Co., Ltd produces is 2800/4700;
In described chemical modifier, manufacturing enterprise's title and the product type of organic silicon water-proofing defoamer have: the DF-830 that Wanbolin District, Taiyuan City Jun Hua Building Materials Factory, Dongguan City De Feng Chemical Co., Ltd. produce; Manufacturing enterprise's title and the product type of polyvinyl alcohol have: 168#, brand that Shanghai Kun He wrapping material company limited produces are female rising, and the trade mark that Guangzhou Shuan Pu trade Co., Ltd produces is 2800/4700; Manufacturing enterprise's title of zeolite powder has: Xingtang County Xin Lei mineral powder source mill, Pingqiao District, Xinyang Mao Yuan perlite factory, ten Li Tuoxinlei stone flour factories of Yutian County etc., specific surface area>=400m
2/ kg.
In above-described embodiment: in the percentage adopting, do not indicate especially, be quality (weight) percentage; Described quality (weight) part can be all gram or kilogram.
In above-described embodiment: processing parameter (temperature, time, concentration etc.) and each amounts of components numerical value etc. in each step is scope, and any point is all applicable.
The not concrete same prior art of technology contents of narrating in content of the present invention and above-described embodiment.
The invention is not restricted to above-described embodiment, all can implement and have described good result described in content of the present invention.
Claims (6)
1. for a modification high carbon chromium scum aggregate for road concrete, it is characterized in that by: high-carbon chrome alloy slag aggregate, mixes composition with the chemical modifier of high-carbon chrome alloy slag aggregate quality 2%～6%;
Described chemical modifier by: the mass percentage content of solids is 4%～10% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 0.5～1.2 mass parts, polyvinyl alcohol 0.2～0.5 mass parts and specific surface area>=400 m
2zeolite powder 2～4 mass parts of/kg mix composition;
The mass percentage content of described solids is that the polymer emulsion stoste thin up that 4%～10% polymkeric substance diluent is 40%～50% by the mass percentage content of solids makes;
The mass percentage content of described solids is that 40%～50% polymer emulsion stoste is any in styrene-butadiene emulsion, polyacrylate dispersion, polyethylene-vinyl acetate emulsion, cinnamic acrylic ester emulsion;
Described high-carbon chrome alloy slag aggregate is the melt of discharging while adopting submerged arc electric reduction furnace to produce ferrochrome, through the solid slag that slag pan solidifies, water-sprinkling is cooling, naturally cooling and Mechanical Crushing or jigging method produce after choosing containing chrome mineral; The particle diameter obtaining after fragmentation, shaping, screening is again that 5mm～25mm gap grading coarse aggregate and particle diameter are 0.075mm～4.75mm gap grading fine aggregate, is mixed in proportion the high carbon chromium scum aggregate being deployed into;
Described again in fragmentation, shaping, screening, when broken, in described solid slag, also spray is mixed with the broken auxiliary agent of solid slag quality 1%～3%; This fragmentation auxiliary agent is by water 100 mass parts, trolamine or tri-isopropanolamine 20～34 mass parts, and ethylene glycol, propylene glycol or glycerol 3～8 mass parts, and cetyl alcohol or Sodium dodecylbenzene sulfonate 2～4 mass parts are mixed composition.
2. by the modification high carbon chromium scum aggregate for road concrete described in claim 1, it is characterized in that: described organic silicon water-proofing defoamer 0.5～1.2 mass parts replaces with tributyl phosphate 0.2～0.5 mass parts.
3. by the modification high carbon chromium scum aggregate for road concrete described in claim 1, it is characterized in that: main chemical compositions and the mass percent of described high-carbon chrome alloy slag aggregate consist of: SiO
228.6%～37.5%, Al
2o
316.1%～26.4%, MgO 25.43%～40.6%, Fe
2o
35.95%～8.21% and Cr
2o
31.8%～7.6%.
4. for a modification high carbon chromium scum aggregate processing method for road concrete, it is characterized in that comprising the following steps:
A, diluted polymer emulsion stoste: the polymer emulsion stoste that the mass percentage content of getting solids is 40%～50%, it is 4%～10% polymkeric substance diluent that thin up becomes the mass percentage content of solids;
The mass percentage content of described solids is that 40%～50% polymer emulsion stoste is any in styrene-butadiene emulsion, polyacrylate dispersion, polyethylene-vinyl acetate emulsion, cinnamic acrylic ester emulsion;
B, preparation chemical modifier: be 4%～10% polymkeric substance diluent 100 mass parts, organic silicon water-proofing defoamer 0.5～1.2 mass parts, polyvinyl alcohol 0.2～0.5 mass parts and specific surface area>=400 m by the mass percentage content of solids
2the ratio of zeolite powder 2～4 mass parts of/kg is got each component and is mixed, and at the temperature of 40 DEG C～65 DEG C, stirs 1～2h, makes chemical modifier;
C, preparation modification high carbon chromium scum aggregate: get high-carbon chrome alloy slag aggregate, get the chemical modifier of high-carbon chrome alloy slag aggregate quality 2%～6%, under stirring, chemical modifier is sprayed onto in high-carbon chrome alloy slag aggregate and mixes, stack again after 1～2 day, make the modification high carbon chromium scum aggregate for road concrete;
Described high-carbon chrome alloy slag aggregate is the melt of discharging while adopting submerged arc electric reduction furnace to produce ferrochrome, through the solid slag that slag pan solidifies, water-sprinkling is cooling, naturally cooling and Mechanical Crushing or jigging method produce after choosing containing chrome mineral; The particle diameter obtaining after fragmentation, shaping, screening is again that 5mm～25mm gap grading coarse aggregate and particle diameter are 0.075mm～4.75mm gap grading fine aggregate, is mixed in proportion the high carbon chromium scum aggregate being deployed into;
Described again in fragmentation, shaping, screening, when broken, in described solid slag, also spray is mixed with the broken auxiliary agent of solid slag quality 1%～3%; This fragmentation auxiliary agent is by water 100 mass parts, trolamine or tri-isopropanolamine 20～34 mass parts, and ethylene glycol, propylene glycol or glycerol 3～8 mass parts, and cetyl alcohol or Sodium dodecylbenzene sulfonate 2～4 mass parts are mixed composition.
5. by the modification high carbon chromium scum aggregate processing method for road concrete described in claim 4, it is characterized in that: the defoamer of organic silicon water-proofing described in step b 0.5～1.2 mass parts replaces with tributyl phosphate 0.2～0.5 mass parts.
6. by the modification high carbon chromium scum aggregate processing method for road concrete described in claim 4, it is characterized in that: main chemical compositions and the mass percent of described high-carbon chrome alloy slag aggregate consist of: SiO
228.6%～37.5%, Al
2o
316.1%～26.4%, MgO 25.43%～40.6%, Fe
2o
35.95%～8.21% and Cr
2o
31.8%～7.6%.
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| CN103708787B (en) * | 2013-12-27 | 2016-04-20 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | A kind of highway road surface cement stabilized macadam |
| CN106083088A (en) * | 2016-06-12 | 2016-11-09 | 安徽省亚欧陶瓷有限责任公司 | A kind of fire-resistant aging resistance ceramic tile and preparation method thereof |
| CN107285685B (en) * | 2017-07-31 | 2020-02-11 | 贵州筑信达创科技有限公司 | High-strength water permeable brick and preparation method thereof |
| CN108863129A (en) * | 2018-08-06 | 2018-11-23 | 万国雄 | A kind of modified high carbon chromium scum aggregate formula of intensity highly corrosion resistant |
| CN109251004A (en) * | 2018-11-15 | 2019-01-22 | 中科镁基（北京）科技有限公司 | It is a kind of with carbon chromium slag be main aggregate high-strength concrete and preparation method thereof |
| CN109776042A (en) * | 2019-03-06 | 2019-05-21 | 李素娥 | A kind of highway alloy dreg concrete |
| CN111847944B (en) * | 2020-07-23 | 2021-11-26 | 中国建筑科学研究院有限公司 | Ferrochromium slag for concrete aggregate and preparation method thereof |
| CN116514430A (en) * | 2023-05-26 | 2023-08-01 | 重庆交通大学 | Modification method of bamboo aggregate and application of composition |
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