CN106698991A - Concrete admixture and preparation method thereof - Google Patents
Concrete admixture and preparation method thereof Download PDFInfo
- Publication number
- CN106698991A CN106698991A CN201611082996.0A CN201611082996A CN106698991A CN 106698991 A CN106698991 A CN 106698991A CN 201611082996 A CN201611082996 A CN 201611082996A CN 106698991 A CN106698991 A CN 106698991A
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- parts
- concrete
- concrete admixture
- flyash
- phosphorus slag
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- 239000004567 concrete Substances 0.000 title claims abstract description 96
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000002893 slag Substances 0.000 claims abstract description 62
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000011574 phosphorus Substances 0.000 claims abstract description 60
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 60
- 239000002994 raw material Substances 0.000 claims abstract description 52
- 239000002245 particle Substances 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 55
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 47
- 239000002956 ash Substances 0.000 claims description 47
- 239000010881 fly ash Substances 0.000 claims description 47
- 229910052710 silicon Inorganic materials 0.000 claims description 47
- 239000010703 silicon Substances 0.000 claims description 47
- 239000004568 cement Substances 0.000 claims description 31
- 239000012467 final product Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000011575 calcium Substances 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 14
- 235000019738 Limestone Nutrition 0.000 abstract description 5
- 239000006028 limestone Substances 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 3
- 229910021487 silica fume Inorganic materials 0.000 abstract description 3
- 239000010883 coal ash Substances 0.000 abstract 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 22
- 230000000694 effects Effects 0.000 description 20
- 239000000463 material Substances 0.000 description 15
- 239000000292 calcium oxide Substances 0.000 description 11
- 235000012255 calcium oxide Nutrition 0.000 description 11
- 239000000047 product Substances 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 238000006703 hydration reaction Methods 0.000 description 9
- 239000002689 soil Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000036571 hydration Effects 0.000 description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 description 7
- 230000015271 coagulation Effects 0.000 description 7
- 238000005345 coagulation Methods 0.000 description 7
- 229910052681 coesite Inorganic materials 0.000 description 7
- 229910052906 cristobalite Inorganic materials 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 7
- 229910052682 stishovite Inorganic materials 0.000 description 7
- 229910052905 tridymite Inorganic materials 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000004575 stone Substances 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 235000013312 flour Nutrition 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002742 anti-folding effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009614 chemical analysis method Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0042—Powdery mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0481—Other specific industrial waste materials not provided for elsewhere in C04B18/00
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Combustion & Propulsion (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a concrete admixture and a preparation method thereof. The concrete admixture is prepared from the following raw materials in parts by weight: 44 to 66 parts of limestone powder, 24 to 36 parts of coal ash, 16 to 24 parts of phosphorus slag, and 4 to 6 parts of silica fume. The preparation method comprises the following steps: (1) drying the limestone powder, the coal ash, the phosphorus slag and the silica fume; (2) crushing the dried raw materials to obtain particles of the raw materials; (3) uniformly mixing the particles of the raw materials to obtain the concrete admixture. The concrete admixture comprehensively utilizes wastes, so that the permeation resistance of the concrete is improved while the energy is saved and the environment is protected, and the working performance of the concrete is optimized.
Description
Technical field
The invention belongs to building material technology and environmental technology field, and in particular to a kind of energy-conserving and environment-protective simultaneously can improve coagulation
Native impervious admixture and preparation method thereof.
Background technology
Concrete refers to by the general designation of the cementing integral engineered composite material of aggregate by Binder Materials.The coagulation generally said
Soil refers to make Binder Materials with cement, and sand, masonry aggregate coordinate by a certain percentage with water, admixture or additive, it is agitated and
The cement concrete for obtaining, also referred to as normal concrete, it is widely used in civil engineering.
At present, the production process of cement is that ore is pulverized, and is formed with ball mill grinding again after calcining, and with mixed
The increase year by year of solidifying soil consumption, the natural crystal resource in many places occurs in that scarcity；In order to reduce the production cost of cement, subtract
The consumption of cement in few concrete, improves concrete performance, and using water wisely is mixed natural generally in the Binder Materials of concrete
Or the artificial powdered ore material that can improve concrete performance make admixture, conventional coagulation admixture has flyash, granulation
The application effect such as material, the especially flyash such as blast-furnace cinder, volcanic ash class, superfine graining electric furnace slag, silicon ash is good.So
And, single flyash, superfine graining electric furnace slag or silicon ash can not it is highly effective lifting concrete service behaviour, match somebody with somebody
The production cost of Binder Materials can not be not only reduced than irrational admixture, reasonably optimizing working performance of concrete is not had also
Effect, therefore, how to select suitable raw material as admixture and improve the proportioning of each raw material in admixture, make gained mix
Closing material can make full use of discarded object, effectively reduce the benefit of the production cost of cement, generation environment and economic aspect, and can increase
Plus the service behaviour such as impermeability, the slump, the pumpability of concrete is research purpose of the invention.
The content of the invention
In order to solve the above mentioned problem of prior art presence, the invention provides a kind of concrete admixture and its preparation side
Method, concrete not only energy-saving and environmental protection are prepared using admixture of the invention, and the cement consumption that can reduce 30% can also improve coagulation
The impermeability of soil.
The technical solution adopted in the present invention is：
A kind of concrete admixture, including following weight portion raw material：
Agstone 44-66 parts, flyash 24-36 parts, phosphorus slag 16-24 parts, silicon ash 4-6 parts.
The present invention selects agstone as the main component of admixture, using flyash, phosphorus slag and silicon ash as auxiliary material, its
Middle flyash, phosphorus slag and silicon ash are industrial waste, and storage need to take a large amount of soils and have the waste water of pollution, and phosphorus slag is long placed in
Waste gas can be also produced, therefore can realize that waste material is recycled as auxiliary material using flyash, phosphorus slag and silicon ash, effectively reduced useless
The generation of gurry.
Wherein, flyash can save substantial amounts of cement and fine aggregate, reduce water consumption, improvement concrete batching system and easy
Property, strengthen the pumpability of concrete, creeping for concrete is reduced, the heat of hydration, heat energy dilatancy are reduced, improve concrete impervious energy
Power, increases the modified of concrete；
Phosphorus slag has mineral active higher.Do not possess hydraulically active, after mixing concrete, it is necessary to ripe by cement in cement
(clinker is, with lime stone and clay, ferriferous raw material as primary raw material, raw material to be configured to by proper proportion to material, is burnt to part
Or all meltings, and the semi-finished product obtained through cooling.Portland clinker add proper amount of gypsum it is common it is levigate after, silicic acid
Salt cement) hydrated product calcium hydroxide alkaline excitation could produce hydration reaction, generate gelling hydrated product, therefore phosphorus slag
Aquation it is slower than clinker, another aspect phosphorus slag has deferred action to cement concrete, thus makes phosphorus slag concrete in early days
Intensity decreases.If but cement early hydration is suppressed, its crystal condition of " growing " is good, makes the quality of hydrated product
Significantly improve, water mudrock structure is even closer, interior porosity declines, hole diameter diminishes, thus to late strength of concrete
Development is favourable, so that late strength of concrete is improved.Additionally, phosphorus slag has activity higher, its secondary reaction of hydration can be carried
Cement strength high, improves interfacial structure and pore-size distribution, improves late strength of concrete；Study on Microcosmic Mechanism proves, phosphorus
After ground-slag mixes cement slurry, the pore structure of hardened paste can be significantly improved, reduce macropore, aperture increases, phosphorus slag slurry
The Ca (OH) of body2Substantially reduce, C-S-H increases, compact structure, intensity increases；
Silicon ash can the intergranular hole of filling concrete, while with hydrated product generate gelinite, with basic matterial aoxidize
Reactive magnesium generates gelinite, improves the rheological property of concrete, significantly improves resistance to compression, anti-folding, impervious, anti-corrosion, shock resistance and resistance to
Mill performance etc.；
Therefore, discarded object can be made full use of as auxiliary material using flyash, phosphorus slag and silicon ash, and can generation environment and warp
Benefit in terms of Ji.
Agstone in the present invention is used to strengthen the intensity of concrete, and its influence to concrete strength performance is mainly led to
Cross three big effects to show, i.e. acceleration of hydration effect, active effect and granule-morphology effect.Wherein acceleration of hydration effect and activity
The contribution of effect is mainly manifested in early stage, and the acceleration of hydration effect of agstone determines that fine grained is more by its granular size, plus
Fast hydration effect is more obvious, and the use of agstone as concrete admixture can be accelerated into hydrated cementitious；Active effect is removed
Its composition influence is mainly received beyond relevant with granular size, the present invention presses agstone with flyash, phosphorus slag and silicon ash
Above-mentioned weight portion is matched, and can effectively improve the activity of concrete；There is the granule-morphology effect of agstone form to imitate
Should and filing effect, wherein shape effect show agstone porosity characteristic in itself have water suction effect so that aggregate chips mix
The actual ratio of mud (ratio of mud refers to the weight ratio of the consumption with cement consumption of concrete reclaimed water) of soil is coagulated less than with proportioning
Normal concrete so that the water-retaining property enhancing of concrete, bleeding rate reduces, and reduces aggregation of the Free water on interface, thus
Be conducive to the improvement of slurry-bone interface；Due to aggregate chips rough surface, with sharp corners, agstone not only may be such that gather materials with
The snap-in force of slurry is strengthened, and is conducive to the improvement of slurry-bone interface；Filing effect can be to the bulk density of powder body material
Influence is produced, so as to influence the mobility of concrete mix, packing, the influence to porosity and intensity is shown as, works as stone
The grain fineness of limestone flour less than cement grain fineness when, gap that can be effectively between filling concrete particle, increase coagulation
The density of soil.
The admixture that proportioning using above-mentioned weight portion of the invention is obtained is used under conditions of identical service behaviour is reached
The cement consumption of 15-60% can be reduced when pump concrete, can averagely reduce by 30% cement consumption, therefore, objectively
For can reduce production cement during energy consumption and disposal of pollutants；Can increase the impervious of concrete using admixture of the invention
Property, the slump, divergence and bleeding, reduce the viscosity of concrete so as to improve pumpability.
Preferably：A kind of concrete admixture, including following weight portion raw material：
Agstone 49.5-60.5 parts, flyash 27-33 parts, phosphorus slag 18-22 parts, silicon ash 4.5-5.5 parts.
Further：A kind of concrete admixture, including following weight portion raw material：
55 parts of agstone, 30 parts of flyash, 20 parts of phosphorus slag, 5 parts of silicon ash.
Preferably：The content of calcium carbonate is more than or equal to 75% in the agstone.
Wherein the method for testing of calcium carbonate content should be converted by 1.785 times of CaO contents, and CaO content should be marked by existing country
It is accurate《Building materials lime stone, quick lime and white lime chemical analysis method》GB/T5762 is determined.
Preferably：The loss on ignition of the flyash is less than or equal to 8%.
Loss on ignition (Loss on ignition, be abbreviated as LOI), will be in the 105-110 DEG C of raw material of drying in 1000-
The percentage by weight lost after 1100 DEG C of calcinations.The analysis of raw material loss on ignition has its Special Significance.It characterizes raw material heat resolve
Gaseous products (such as H2O、CO2Deng) and the content of organic matter number, such that it is able to judge whether raw material needs in advance when in use
It is calcined, makes raw material volume stabilization.
Preferably：The CaO and SiO of phosphorus slag powder in the phosphorus slag2Average content be more than or equal to 80%.
Preferably：SiO in the silicon ash2Content be more than or equal to 80%.
A kind of preparation method of concrete admixture, comprises the following steps：
(1) agstone of above-mentioned weight portion, flyash, phosphorus slag and silicon ash are dried；
(2) by drying after each raw material crushed respectively, obtain the particulate of each raw material；
(3) particulate of each raw material is well mixed, obtains final product concrete admixture.
Preferably：Drying is that moisture is less than or equal to during each raw material is dried at 100-105 DEG C described in step (1)
4%.
Preferably：Agstone described in step (2), flyash, the diameter of particle of phosphorus slag are less than 100 μm, the silicon ash
Diameter of particle be 0.1-1 μm.
A kind of application method of the concrete admixture, is with 3-12 by the concrete admixture and cement：20
Weight ratio mix matching somebody with somebody, wherein particle diameter of the particle diameter of the concrete admixture less than the cement.
Stone flour is the common name of the powder of stone, is divided into medical stone powder, dicalcium powder, talcum powder, dolomite dust, powder of lacquer putty for use on etc.
Deng stone flour is widely used, and the product manufactured with it nowhere loses in our life, such as：Plastics, calcium tablet, cosmetics, clothing
Clothes, toothpaste etc..
Flyash is the fine ash that catching is got off from the flue gas after coal combustion, and flyash is the main solid of coal-burning power plant's discharge
Body waste.The main oxides of power plants flyash are constituted：SiO2、Al2O3、FeO、Fe2O3、CaO、TiO2Deng.
Phosphorus slag is the industrial residue-granulation electric furnace phosphoric slag after electric furnace process produces a kind for the treatment of through cold quenching obtained during yellow phosphorus,
Abbreviation phosphorus slag.Its main component is silicate glass body, and main chemical compositions are CaO, SiO2、Al2O3, in addition with a small amount of
TiO2、Fe2O3、P2O5, MgO, F and micro MnO, K2O、Na2O, with potential hydration activity higher.
Silicon ash be called SILICA FUME or cohesion silicon ash, be ferroalloy in smelting duriron and industrial silicon (metallic silicon), ore deposit thermoelectricity
The very strong SiO of a large amount of volatility is produced in stove2With Si gases, formed with air rapid oxidation condensation precipitation after gas discharge.
Beneficial effects of the present invention are：
1st, cement consumption is reduced：Under conditions of identical service behaviour is reached, admixture of the invention is applied to pump
The cement consumption of 15%-60% can be reduced when sending concrete, can averagely reduce by 30% cement consumption, objectively reduce production
Energy consumption and disposal of pollutants during cement；
2nd, discarded object is rationally utilized：Used flyash, phosphorus slag and silicon ash are industrial waste in the present invention, and storage need to be accounted for
With a large amount of soils and there is the waste water of pollution, phosphorus slag is long placed in and can also produce waste gas, therefore makees using flyash, phosphorus slag and silicon ash
The generation of discarded object can be effectively reduced for auxiliary material；
3rd, the impermeability of concrete is increased：The volume for carrying out 20-40% using this product is equal to mixes repellant
The impermeability of the concrete of (UEA swelling agents), the seepage-resistant grade that seepage resistance demand reaches P10 can be directly prepared using this product.
4th, the service behaviour of optimised coagulation soil：The consumption of cement is reduced, increases the fineness of admixture so as to improve concrete
The slump, divergence and bleeding, the viscosity for reducing concrete and then the pumpability for improving concrete.Result of the test shows,
Using its 2cm slump-loss 1-3 times of time lengthening compared with normal concrete of the concrete of admixture of the present invention.
In sum, beneficial effects of the present invention are rationally to utilize waste, energy-saving and environmental protection and can improve the impervious of concrete
Property, the service behaviour of optimised coagulation soil.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Detailed description.Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are resulting on the premise of creative work is not made to be owned
Other embodiment, belongs to the scope that the present invention is protected.
Used flyash is provided by Shanghai Wei Xi Science and Technology Ltd.s in following examples；Phosphorus slag powder is by Guizhou Wengfu
Phosphorus ore is provided；Silicon ash is provided by Guizhou Xinda furnace charge company；Agstone is voluntarily to grind, and finished product standard is as shown in the table：
Embodiment 1
A kind of concrete admixture, including following weight portion raw material：
44 parts of agstone, 24 parts of flyash, 16 parts of phosphorus slag, 4 parts of silicon ash.
Each index is as follows in above-mentioned raw materials：
The content of calcium carbonate is 75% in agstone；The loss on ignition of the flyash is 8%；Phosphorus slag powder in the phosphorus slag
CaO and SiO2Average content be 80%；SiO in the silicon ash2Content be 80%；
A kind of preparation method of concrete admixture, comprises the following steps：
(1) agstone of above-mentioned weight portion, flyash, phosphorus slag and silicon ash are dried to moisture in each raw material at 100 DEG C
Content is 4%；
(2) agstone after drying, flyash, phosphorus slag are carried out being crushed to particle diameter respectively for 100 μm, after drying
Silicon ash is crushed to particle diameter for 1 μm, obtains the particulate of each raw material；
(3) particulate of each raw material is well mixed, obtains final product concrete admixture.
Embodiment 2
A kind of concrete admixture, including following weight portion raw material：
49.5 parts of agstone, 27 parts of flyash, 18 parts of phosphorus slag, 4.5 parts of silicon ash.
Each index is as follows in above-mentioned raw materials：
The content of calcium carbonate is 78% in agstone；The loss on ignition of the flyash is 7%；Phosphorus slag powder in the phosphorus slag
CaO and SiO2Average content be 81%；SiO in the silicon ash2Content be 81%；
A kind of preparation method of concrete admixture, comprises the following steps：
(1) agstone of above-mentioned weight portion, flyash, phosphorus slag and silicon ash are dried to moisture in each raw material at 100 DEG C
Content is 4%；
(2) agstone after drying, flyash, phosphorus slag are carried out being crushed to particle diameter respectively for 80 μm, after drying
Silicon ash is crushed to particle diameter for 0.1 μm, obtains the particulate of each raw material；
(3) particulate of each raw material is well mixed, obtains final product concrete admixture.
Embodiment 3
Further：A kind of concrete admixture, including following weight portion raw material：
55 parts of agstone, 30 parts of flyash, 20 parts of phosphorus slag, 5 parts of silicon ash.
Each index is as follows in above-mentioned raw materials：
The content of calcium carbonate is 79% in agstone；The loss on ignition of the flyash is 6%；Phosphorus slag powder in the phosphorus slag
CaO and SiO2Average content be 82%；SiO in the silicon ash2Content be 82%；
A kind of preparation method of concrete admixture, comprises the following steps：
(1) agstone of above-mentioned weight portion, flyash, phosphorus slag and silicon ash are dried to moisture in each raw material at 102 DEG C
Content is 3%；
(2) agstone after drying, flyash, phosphorus slag are carried out being crushed to particle diameter respectively for 70 μm, after drying
Silicon ash is crushed to particle diameter for 0.1 μm, obtains the particulate of each raw material；
(3) particulate of each raw material is well mixed, obtains final product concrete admixture.
Embodiment 4
A kind of concrete admixture, including following weight portion raw material：
60.5 parts of agstone, 33 parts of flyash, 22 parts of phosphorus slag, 5.5 parts of silicon ash.
Each index is as follows in above-mentioned raw materials：
The content of calcium carbonate is 80% in agstone；The loss on ignition of the flyash is 5%；Phosphorus slag powder in the phosphorus slag
CaO and SiO2Average content be 83%；SiO in the silicon ash2Content be 83%；
A kind of preparation method of concrete admixture, comprises the following steps：
(1) agstone of above-mentioned weight portion, flyash, phosphorus slag and silicon ash are dried to moisture in each raw material at 104 DEG C
Content is 3%；
(2) agstone after drying, flyash, phosphorus slag are carried out being crushed to particle diameter respectively for 60 μm, after drying
Silicon ash is crushed to particle diameter for 0.1 μm, obtains the particulate of each raw material；
(3) particulate of each raw material is well mixed, obtains final product concrete admixture.
Embodiment 5
A kind of concrete admixture, including following weight portion raw material：
66 parts of agstone, 36 parts of flyash, 24 parts of phosphorus slag, 6 parts of silicon ash.
Each index is as follows in above-mentioned raw materials：
The content of calcium carbonate is 81% in agstone；The loss on ignition of the flyash is 4%；Phosphorus slag powder in the phosphorus slag
CaO and SiO2Average content be 85%；SiO in the silicon ash2Content be 85%；
A kind of preparation method of concrete admixture, comprises the following steps：
(1) agstone of above-mentioned weight portion, flyash, phosphorus slag and silicon ash are dried to moisture in each raw material at 105 DEG C
Content is 2%；
(2) agstone after drying, flyash, phosphorus slag are carried out being crushed to particle diameter respectively for 60 μm, after drying
Silicon ash is crushed to particle diameter for 0.1 μm, obtains the particulate of each raw material；
(3) particulate of each raw material is well mixed, obtains final product concrete admixture.
Experiment is proved：
Performance verification is operated to the admixture that the embodiment of the present invention 3 is obtained below, from intensity be 42.5 it is common
Portland cement is matched somebody with somebody as cement matrix concrete batching, the wherein admixture of the embodiment of the present invention 3 with mixing for cement-based material
Scope is 20%-40%, sets control group, and control group mixes the UEA swelling agents of equivalent not use admixture of the invention
Used as repellant, the impermeability of concrete is represented with seepage-resistant grade (P) or infiltration coefficient.China's standard is using impervious etc.
Level.Seepage-resistant grade is the maximum water pressure that be can bear when being tested by standard test method with the standard specimen of 28d ages
To determine.According to GB50164《Standard for quality control of concrete》Tested, test result is according to concrete sample in impervious examination
The maximum water pressure that be can bear when testing, the seepage-resistant grade of concrete is divided into five grades such as P4, P6, P8, P10, P12.Inspection
The impervious result for surveying obtained concrete is as follows：
As can be seen from the above table, mixed with this product is not used when carrying out the volume of 20-40% using admixture of the present invention
Concrete impervious ability with repellant is identical, and can directly prepare seepage resistance demand using this product reaches the impervious etc. of P10
Level.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of concrete admixture, it is characterised in that the raw material including following weight portion：
Agstone 44-66 parts, flyash 24-36 parts, phosphorus slag 16-24 parts, silicon ash 4-6 parts.
2. concrete admixture according to claim 1, it is characterised in that the raw material including following weight portion：
Agstone 49.5-60.5 parts, flyash 27-33 parts, phosphorus slag 18-22 parts, silicon ash 4.5-5.5 parts.
3. concrete admixture according to claim 2, it is characterised in that the raw material including following weight portion：
55 parts of agstone, 30 parts of flyash, 20 parts of phosphorus slag, 5 parts of silicon ash.
4. the concrete admixture according to any one of claim 1-3, it is characterised in that carbonic acid in the agstone
The content of calcium is more than or equal to 75%.
5. the concrete admixture according to any one of claim 1-3, it is characterised in that the loss on ignition of the flyash
Less than or equal to 8%.
6. the concrete admixture according to any one of claim 1-3, it is characterised in that CaO and SiO in the phosphorus slag2
Total content be more than or equal to 80%.
7. the concrete admixture according to any one of claim 1-3, it is characterised in that SiO in the silicon ash2Contain
Amount is more than or equal to 80%.
8. a kind of method for preparing the concrete admixture as any one of claim 1-7, it is characterised in that including following
Step：
(1) agstone of above-mentioned weight portion, flyash, phosphorus slag and silicon ash are dried；
(2) by drying after each raw material crushed respectively, obtain the particulate of each raw material；
(3) particulate of each raw material is well mixed, obtains final product concrete admixture.
9. method according to claim 8, it is characterised in that agstone described in step (2), flyash, phosphorus slag
Diameter of particle is less than 100 μm, and the diameter of particle of the silicon ash is 0.1-1 μm.
10. a kind of application method of the concrete admixture as any one of claim 1-7, it is characterised in that will be described
Concrete admixture is with cement with 3-12：20 weight ratio mix matching somebody with somebody, wherein the particle diameter of the concrete admixture is less than institute
State the particle diameter of cement.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382277A (en) * | 2017-08-16 | 2017-11-24 | 江西省建筑材料工业科学研究设计院 | A kind of superfine composite modified agstone of concrete microdilatancy |
| CN108483969A (en) * | 2018-03-08 | 2018-09-04 | 新疆研科节能科技有限公司 | Granular concrete admixture and its prilling process |
| CN111393086A (en) * | 2020-03-27 | 2020-07-10 | 贵州师范大学 | A delayed expansion composite admixture for preparing roller compacted concrete |
| CN115959846A (en) * | 2022-12-29 | 2023-04-14 | 中建西部建设建材科学研究院有限公司 | Composite admixture containing yellow phosphorus slag and waste slurry slag of ready-mix plant and preparation method thereof |
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| CN101016198A (en) * | 2007-01-31 | 2007-08-15 | 北京恒坤混凝土有限公司 | Ultra-fine carbonate rock powder concrete composite blending material and preparing method thereof |
| CN102584063A (en) * | 2012-02-27 | 2012-07-18 | 中国铁道科学研究院铁道建筑研究所 | Functional admixture used for early tensioning prestressed structural concrete and purposes of functional admixture |
| CN103833242A (en) * | 2014-01-17 | 2014-06-04 | 重庆欣材混凝土集团股份有限公司 | Retarding composite limestone powder admixture |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101016198A (en) * | 2007-01-31 | 2007-08-15 | 北京恒坤混凝土有限公司 | Ultra-fine carbonate rock powder concrete composite blending material and preparing method thereof |
| CN102584063A (en) * | 2012-02-27 | 2012-07-18 | 中国铁道科学研究院铁道建筑研究所 | Functional admixture used for early tensioning prestressed structural concrete and purposes of functional admixture |
| CN103833242A (en) * | 2014-01-17 | 2014-06-04 | 重庆欣材混凝土集团股份有限公司 | Retarding composite limestone powder admixture |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382277A (en) * | 2017-08-16 | 2017-11-24 | 江西省建筑材料工业科学研究设计院 | A kind of superfine composite modified agstone of concrete microdilatancy |
| CN108483969A (en) * | 2018-03-08 | 2018-09-04 | 新疆研科节能科技有限公司 | Granular concrete admixture and its prilling process |
| CN111393086A (en) * | 2020-03-27 | 2020-07-10 | 贵州师范大学 | A delayed expansion composite admixture for preparing roller compacted concrete |
| CN115959846A (en) * | 2022-12-29 | 2023-04-14 | 中建西部建设建材科学研究院有限公司 | Composite admixture containing yellow phosphorus slag and waste slurry slag of ready-mix plant and preparation method thereof |
| CN115959846B (en) * | 2022-12-29 | 2024-07-05 | 中建西部建设建材科学研究院有限公司 | Composite admixture containing yellow phosphorus slag and waste slurry slag of ready-mixed plant and preparation method thereof |
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