CN103224357B - Green environmentally-friendly broken stone active powder concrete - Google Patents

Green environmentally-friendly broken stone active powder concrete Download PDF

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CN103224357B
CN103224357B CN201310048632.0A CN201310048632A CN103224357B CN 103224357 B CN103224357 B CN 103224357B CN 201310048632 A CN201310048632 A CN 201310048632A CN 103224357 B CN103224357 B CN 103224357B
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active powder
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broken stone
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CN103224357A (en
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黄贺明
刘福财
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黄贺明
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention discloses green environmentally-friendly broken stone active powder concrete. The green environmentally-friendly broken stone active powder concrete is prepared from 485 to 580 weight parts of ordinary portland cement or low-alkaline portland cement having the average grain diameter of 30 to 60 microns, 105 to 145 weight parts of silica fume having the average grain diameter of 0.18 microns and SiO2 content greater than or equal to 85%, 100 to 130 weight parts of I-grade coal ash having the average grain diameter of 10 to 20 microns, 100 to 130 weight parts of more than S95 grade of slag powder having the average grain diameter of 10 to 30 microns, 510 to 590 weight parts of quartz sand having the grain diameter of 0.16 to 1.63 millimeters, 795 to 880 weight parts of crushed stone having the grain diameter of 5 to 14 millimeters, 15 to 18 weight parts of a composite high-efficiency water reducer having a water-reducing rate more than 30%, 7 to 12 weight parts of a corrosion inhibitor, 136 to 165 weight parts of water, and 80 to 160 weight parts of copper-coated steel fibers having the diameter of 0.18 to 0.25 millimeters and the length of 10 to 15 millimeters. The green environmentally-friendly broken stone active powder concrete has a low composite cost and wide raw material sources, adopts a large amount of industrial waste materials, has good chemical corrosion resistance, good carbonization resistance, good freeze thawing resistance, high compressive strength and flexural strength, and good self-sealing performances, reduces hydration heat and workability adjustment ranges, and satisfies different process requirements.

Description

A kind of Green environmentally-friebroken broken stone active powder concrete
Technical field
The invention belongs to technical field of concrete, be specifically related to a kind of Green environmentally-friebroken broken stone active powder concrete.
Background technology
RPC(RPC) be to be developed the beginning of the nineties at twentieth century by western countries such as France a kind of superstrength, high tenacity, high-durability, volume stability New Style Concrete Materials, this material property is divided into 200MPa level and 800MPa level.Now external main application rank is 200MPa level, and performance resistance to compression index can reach 130 ~ 200MPA, and folding strength can reach 16 ~ 50MPA, and Young's modulus is at more than 45GPa, and anti-permeability performance is generally at more than P30, and carbonization in 28 days is detected as 0, and displacement flux is less than 40 coulombs.RPC material is now in continuous research and development at home, and is used on railway engineering, bridge prefabrication.
Due to the high-performance of RPC concrete material each side, be extended to the main concrete material of world's future development and use.But because its composition concrete raw material cost of present stage is high, quartz sand, fine quartz sand powder and cement usage quantity are large, concrete viscosity coefficient is large, hydration heat is high, not easily form self-compacting and mixed earth surfaces easily forms the shortcomings such as the accumulation of salt in the surface soil (frost), limits RPC material and widely uses in engineering and develop.
Summary of the invention
The object of the invention is to overcome the concrete defect of above-mentioned existing RPC, a kind of Green environmentally-friebroken broken stone active powder concrete is provided, its with rubble and steel fiber be concrete skeleton, relative low price, be mixed with a large amount of industrial residue, its concrete performance keeps the concrete superstrength of original RPC, high tenacity, high-durability, volume stability index, improve the surperficial accumulation of salt in the surface soil (frost), hydration heat high phenomenon and self-compacting serviceability can be had, to meet its application in each engineering field simultaneously.
Above-mentioned purpose is realized by following technique means:
A kind of Green environmentally-friebroken broken stone active powder concrete, be made up of the raw material of following mass distribution ratio:
The low alkali portland cement of median size 30 ~ 60 μm or ordinary Portland cement 485 ~ 580 parts;
Median size 0.18 μm, SiO 2the silicon ash of content>=85% 105 ~ 145 parts;
100 ~ 130 parts, I grade of flyash of median size 10 ~ 20 μm;
The above breeze of S95 level 100 ~ 130 parts of median size 10 ~ 30 μm;
Particle diameter is the quartz sand 510 ~ 590 parts of 0.16 ~ 1.63mm;
Particle diameter is 795 ~ 880 parts, the stone of 5 ~ 14mm;
The composite superplasticizer 15 ~ 18 parts that water-reducing rate is greater than 30%;
Rust inhibitor 7 ~ 12 parts;
135 ~ 165 parts, water;
The copper plated steel fiber 80 ~ 160 parts that diameter is 0.18 ~ 0.25mm, length is 10 ~ 15mm.
Above-mentioned formula is more preferably made up of the raw material of following mass distribution ratio:
The low alkali portland cement of median size 30 ~ 60 μm or ordinary Portland cement 510 ~ 540 parts;
Median size 0.18 μm, SiO 2the silicon ash of content>=85% 115 ~ 135 parts;
110 ~ 120 parts, I grade of flyash of median size 10 ~ 20 μm;
The above breeze of S95 level 110 ~ 120 parts of median size 10 ~ 30 μm;
Particle diameter is the quartz sand 550 ~ 570 parts of 0.16 ~ 1.63mm;
Particle diameter is 830 ~ 840 parts, the stone of 5 ~ 14mm;
The composite superplasticizer 16 ~ 17 parts that water-reducing rate is greater than 30%;
Rust inhibitor 9 ~ 10 parts;
145 ~ 155 parts, water;
Diameter is the copper plated steel fiber 90 ~ 120 parts of 0.18 ~ 0.25mm, length 10 ~ 15mm.
Above-mentioned RPC composition have employed and maximizes dense packing principle coupling composition, have employed rubble replacement part quartz sand and form concrete skeleton together with steel fiber, give full play to pile up effect principle, its RPC concrete material is originated more extensive.And have employed a large amount of Industry Waste ground-slags (silicon ash, flyash, slag) and replace part of cement and fine quartz sand powder, reduce the concrete cohesiveness of RPC, add self-compacting serviceability, reduce early stage RPC hydration heat of concrete too high, improving the later stage easily there is the accumulation of salt in the surface soil (frost) phenomenon.
Preferably, the calcium oxide content in described flyash is≤10%, and free calcium oxide content is 0.Low calcium I grade of grey relative reactivity is poor, and slowly, Main Function is that mixture performance lubrication is improved and the fine and close filling effect of particle, and the later stage absorbs the calcium oxide suppression accumulation of salt in the surface soil phenomenon that aquation goes out in reflection heat release.
Preferably, the crush index of described stone is less than 10%, elongated particles is less than 5%, silt content is less than 0.5%.Grain composition 5 ~ 14mm continuous grading is the main bridging arrangement of concrete skeleton as a whole, elongated particles restriction is mainly the homogeneity improving concrete flowing property and bridging arrangement, stone crush index is less than 10% and is mainly to ensure concrete structure resistance to compression and folding strength, the while that the restriction Main Function of silt content being proof strength, the concrete shrinkage of restriction RPC.
Preferably, the main component of described composite superplasticizer is defoamer, air entrapment agent, synergistic agent and high efficiency water reducing agent, the water reducer of this composition can improve concrete intensity and improve concrete glutinous poly-property and keep the high dispersion of gelling material, thus ensure natural curing state can reach equally design various performance index, reduce curing requirements index.
Preferably, described rust inhibitor is triethanolamine borate and silicone based the rust inhibitor, thus increases concrete durability, reduces and has stopped RPC concrete surface steel fiber corrosion spot phenomenon, improving outward appearance.
The present invention also provides the preparation method of above-mentioned Green environmentally-friebroken broken stone active powder concrete, comprises the following steps:
(1) copper plated steel fiber and quartz sand are added stirrer and stir 2 ~ 3 minutes to being uniformly dispersed;
(2) in stirrer, add cement, silicon ash, flyash and breeze continue stirring 1 ~ 2 minute to evenly for subsequent use;
(3) in above-mentioned stirring lay-by material, adding rust inhibitor, composite superplasticizer and water successively continuing stirring 2 ~ 3 minutes to being uniformly dispersed;
(4) add stone stirring and obtain described Green environmentally-friebroken broken stone active powder concrete after 1 ~ 2 minute.
Water in above-mentioned preparation process can suitably be finely tuned according to the needs of real work degree, this preparation process make different from common PRC, common PRC carries out adding water shaping after adopting integral material to be uniformly mixed dispersion, gathering materials adds water with gelling material stir after glutinous poly-property high, material scatter, homogeneity have impact, this preparation method is the slurry first forming stable water cement ratio, and secondary wraps up coarse aggregate, and overall gelling material is dispersed, consistence is good.
The present invention also provides the maintenance process of above-mentioned Green environmentally-friebroken broken stone active powder concrete, and adopt normal curing, concrete index evaluation was as the criterion with 56 days.More preferably, normal curing 12 was as a child heated maintenance afterwards, and temperature range is 75 +5 DEG C, temperature rate is no more than 15 DEG C/h, with the intensity of constant temperature after 24 hours for evaluation.
Usefulness of the present invention is: Green environmentally-friebroken broken stone active powder concrete prepared by above-mentioned formula and preparation process, ultimate compression strength can reach 130 ~ 190MPA, folding strength can reach 16 ~ 30MPA, Young's modulus is at more than 45GPa, anti-permeability performance is at more than P50, carbonization in 28 days is detected as 0, and displacement flux is less than 40 coulombs, freeze-thaw-600 circulation imponderability losses.Basically identical with original RPC powder concrete index; Original fine quartz powder is eliminated in formula, decrease the usage quantity of quartz sand and cement, reduce silicon ash usage quantity, have employed a large amount of rubble, breeze and flyash to replace material, greatly reduce the cost of RPC powder concrete, improve that RPC concrete cohesiveness is high, self compacting ability is poor, the surperficial accumulation of salt in the surface soil (frost) phenomenon, take full advantage of the low-cost resources such as Industry Waste ground-slag, reduce CO2 emissions, the processing costss such as waste residue are saved,, improve serviceability and curing condition, make powder concrete range of application more extensive.
Embodiment
embodiment 1
Concrete raw material is equipped with according to following mass ratio:
The low alkali portland cement of median size 30 ~ 60 μm or ordinary Portland cement 515 parts;
Median size 0.18 μm, SiO 2the silicon ash 128 parts of content>=85%;
115 parts, I grade of flyash (calcium oxide content≤10%) of median size 10 ~ 20 μm;
The above breeze of S95 level 115 parts of median size 10 ~ 30 μm;
Particle diameter is the quartz sand 560 parts of 0.16 ~ 1.63mm;
Particle diameter is 840 parts, the stone (crush index is less than 10, and elongated particles is less than 5%, and silt content is less than 0.5%) of 5 ~ 14mm;
The composite superplasticizer 17 parts (defoamer: air entrapment agent: synergistic agent: water reducer is 0.02:0.005:0.25:1) that water-reducing rate is greater than 30%;
Rust inhibitor 9 parts (triethanolamine borate and organosilicon ketone the rust inhibitor, ratio is 3:1)
150 parts, water;
Diameter is the copper plated steel fiber 105 parts of 0.18 ~ 0.25mm, length 10 ~ 15mm
Be prepared in accordance with the following steps after above-mentioned starting material have been equipped with:
(1) the copper plated steel fiber limited by formula and quartz sand add stirrer stirring and are uniformly dispersed for 2 ~ 3 minutes.
(2) in stirrer, add cement that formula limits, silicon ash, flyash and breeze continue stirring 1 ~ 2 minute to evenly for subsequent use.
(3) in above-mentioned stirring lay-by material, adding rust inhibitor, composite superplasticizer and water successively continuing stirring 2 ~ 3 minutes to being uniformly dispersed.
(4) add stone stirring and obtain Green environmentally-friebroken broken stone active powder concrete after 1 ~ 2 minute.
Water in preparation process can suitably be finely tuned according to the needs of real work degree.
Prepared the die trial of rear loading standard, concrete standard maintenance 56 days or constant temperature 75 degree of maintenances measure intensity in 24 hours.
Concrete performance prepared by the present embodiment is as follows:
Ultimate compression strength: 158MPa;
Folding strength: 23.5;
Young's modulus: 48GPa;
Anti-permeability performance: >=P30, P30 grade is without infiltration height;
Carbonization resistance: it is 0 that carbonization in 28 days is detected as carbonation depth;
Displacement flux (Anti-Chloride Ion Penetration): 0.2*10 -12m 2/ s;
Freeze-thaw resistance: 600 circulations are without freeze thawing mass loss;
Cohesiveness: adopt dope viscosity determinator to measure, the time is 88 seconds, standard RPC slurry viscosimetric analysis 181 seconds;
Self compacting ability: divergence 510mm, form Self-leveling state, standard RPC slump is 14CM, without divergence;
The surface accumulation of salt in the surface soil: test one month through drying and watering cycle, surface is without accumulation of salt in the surface soil phenomenon, and standard RPC has accumulation of salt in the surface soil phenomenon;
Chemical resistance: invade respectively bubble the hydrochloric acid soln of the sulphuric acid soln of PH=2, PH=3, PH=4 acetum, 10% magnesium chloride, 10% metabisulfite solution in, within 28 days, detect, weight free of losses, intensity free of losses;
embodiment 2
Concrete raw material is equipped with according to following ratio:
The low alkali portland cement of median size 30 ~ 60 μm or ordinary Portland cement 485 parts;
Median size 0.18 μm, SiO 2the silicon ash 105 parts of content>=85%;
130 parts, I grade of flyash (calcium oxide content≤10%) of median size 10 ~ 20 μm;
The above breeze of S95 level 130 parts of median size 10 ~ 30 μm;
Particle diameter is the quartz sand 510 parts of 0.16 ~ 1.63mm;
Particle diameter is 880 parts, the stone (crush index is less than 10, and elongated particles is less than 5%, and silt content is less than 0.5%) of 5 ~ 14mm;
The composite superplasticizer 15 parts (defoamer: air entrapment agent: synergistic agent: water reducer is 0.02:0.005:0.25:1) that water-reducing rate is greater than 30%
Rust inhibitor 7 parts (triethanolamine borate and organosilicon ketone the rust inhibitor, ratio is 3:1);
136 parts, water;
Diameter is the copper plated steel fiber 80 parts of 0.18 ~ 0.25mm, length 10 ~ 15mm;
Preparation process is with embodiment 1.
Concrete performance prepared by the present embodiment is as follows:
Ultimate compression strength: 138MPa
Folding strength: 17.8MPa
Young's modulus: 46.5GPa
Anti-permeability performance: >=P30, P30 grade is without infiltration height;
Carbonization resistance: it is 0 that carbonization in 28 days is detected as carbonation depth
Displacement flux (Anti-Chloride Ion Penetration): 0.32*10 -12m 2/ s
Freeze-thaw resistance: 600 circulations are without freeze thawing mass loss
Cohesiveness:: adopt dope viscosity determinator to measure, the time is 105 seconds, standard RPC slurry viscosimetric analysis 181 seconds;
Self compacting ability: divergence 390mm, form Self-leveling state, standard RPC slump is 14CM, without divergence;
The surface accumulation of salt in the surface soil: test one month through drying and watering cycle, surface is without accumulation of salt in the surface soil phenomenon, and standard RPC has accumulation of salt in the surface soil phenomenon;
Chemical resistance: invade respectively bubble the hydrochloric acid soln of the sulphuric acid soln of PH=2, PH=3, PH=4 acetum, 10% magnesium chloride, 10% metabisulfite solution in, within 28 days, detect, weight free of losses, intensity free of losses;
embodiment 3
Concrete raw material is equipped with according to following ratio:
The low alkali portland cement of median size 30 ~ 60 μm or ordinary Portland cement 580 parts;
Median size 0.18 μm, SiO 2the silicon ash 145 parts of content>=85%;
105 parts, I grade of flyash (calcium oxide content≤10%) of median size 10 ~ 20 μm;
The above breeze of S95 level 105 parts of median size 10 ~ 30 μm;
Particle diameter is the quartz sand 590 parts of 0.16 ~ 1.63mm;
Particle diameter is 795 parts, the stone (crush index is less than 10, and elongated particles is less than 5%, and silt content is less than 0.5%) of 5 ~ 14mm;
The composite superplasticizer 18 parts (defoamer: air entrapment agent: synergistic agent: water reducer is 0.02:0.005:0.25:1) that water-reducing rate is greater than 30%;
Rust inhibitor 12 parts (triethanolamine borate and organosilicon ketone the rust inhibitor, ratio is 3:1));
165 parts, water;
Diameter is the copper plated steel fiber 160 parts of 0.18 ~ 0.25mm, length 10 ~ 15mm;
Preparation process is with embodiment 1.
Concrete performance prepared by the present embodiment is as follows:
Ultimate compression strength: 191.5MPa
Folding strength: 29.2MPa
Young's modulus: 49.1GPa
Anti-permeability performance: >=P30, P30 grade is without infiltration height
Carbonization resistance: it is 0 that carbonization in 28 days is detected as carbonation depth
Displacement flux (Anti-Chloride Ion Penetration): 0.30*10 -12m 2/ s
Freeze-thaw resistance: 600 circulations are without freeze thawing mass loss
Cohesiveness: adopt dope viscosity determinator to measure, the time is 75 seconds, standard RPC slurry viscosimetric analysis 181 seconds;
Self compacting ability: divergence 535mm, form Self-leveling state, standard RPC slump is 14CM, without divergence;
The surface accumulation of salt in the surface soil: test one month through drying and watering cycle, surface is without accumulation of salt in the surface soil phenomenon, and standard RPC has accumulation of salt in the surface soil phenomenon;
Chemical resistance: invade respectively bubble the hydrochloric acid soln of the sulphuric acid soln of PH=2, PH=3, PH=4 acetum, 10% magnesium chloride, 10% metabisulfite solution in, within 28 days, detect, weight free of losses, intensity free of losses;
embodiment 4
Concrete raw material is equipped with according to following ratio:
The low alkali portland cement of median size 30 ~ 60 μm or ordinary Portland cement 540 parts;
Median size 0.18 μm, SiO 2the silicon ash 135 parts of content>=85%;
110 parts, I grade of flyash (calcium oxide content≤10%) of median size 10 ~ 20 μm;
The above breeze of S95 level 110 parts of median size 10 ~ 30 μm;
Particle diameter is the quartz sand 570 parts of 0.16 ~ 1.63mm;
Particle diameter is 820 parts, the stone (crush index is less than 10, and elongated particles is less than 5%, and silt content is less than 0.5%) of 5 ~ 14mm;
The composite superplasticizer 17 parts (defoamer: air entrapment agent: synergistic agent: water reducer is 0.02:0.005:0.25:1) that water-reducing rate is greater than 30%;
Rust inhibitor 10 parts (triethanolamine borate and organosilicon ketone the rust inhibitor, ratio is 3:1));
145 parts, water;
Diameter is the copper plated steel fiber 120 parts of 0.18 ~ 0.25mm, length 10 ~ 15mm;
Preparation process is with embodiment 1.
Concrete performance prepared by the present embodiment is as follows:
Ultimate compression strength: 169MPa
Folding strength: 24.2MPa
Young's modulus: 48.0GPa
Anti-permeability performance: >=P30, P30 grade is without infiltration height
Carbonization resistance: it is 0 that carbonization in 28 days is detected as carbonation depth
Displacement flux (Anti-Chloride Ion Penetration): 0.21*10 -12m 2/ s
Freeze-thaw resistance: 600 circulations are without freeze thawing mass loss
Cohesiveness: adopt dope viscosity determinator to measure, the time is 121 seconds, standard RPC slurry viscosimetric analysis 181 seconds;
Self compacting ability: divergence 280mm, form Self-leveling state, standard RPC slump is 14CM, without divergence;
The surface accumulation of salt in the surface soil: test one month through drying and watering cycle, surface is without accumulation of salt in the surface soil phenomenon, and standard RPC has accumulation of salt in the surface soil phenomenon;
Chemical resistance: invade respectively bubble the hydrochloric acid soln of the sulphuric acid soln of PH=2, PH=3, PH=4 acetum, 10% magnesium chloride, 10% metabisulfite solution in, within 28 days, detect, weight free of losses, intensity free of losses.
embodiment 5
Concrete raw material is equipped with according to following ratio:
The low alkali portland cement of median size 30 ~ 60 μm or ordinary Portland cement 510 parts;
Median size 0.18 μm, SiO 2the silicon ash 115 parts of content>=85%;
120 parts, I grade of flyash (calcium oxide content≤10%) of median size 10 ~ 20 μm;
The above breeze of S95 level 120 parts of median size 10 ~ 30 μm;
Particle diameter is the quartz sand 560 parts of 0.16 ~ 1.63mm;
Particle diameter is 810 parts, the stone (crush index is less than 10, and elongated particles is less than 5%, and silt content is less than 0.5%) of 5 ~ 14mm;
The composite superplasticizer 16 parts (defoamer: air entrapment agent: synergistic agent: water reducer is 0.02:0.005:0.25:1) that water-reducing rate is greater than 30%;
Rust inhibitor 9 parts (triethanolamine borate and organosilicon ketone the rust inhibitor, ratio is 3:1));
155 parts, water;
Diameter is the copper plated steel fiber 90 parts of 0.18 ~ 0.25mm, length 10 ~ 15mm;
Preparation process is with embodiment 1.
Concrete performance prepared by the present embodiment is as follows:
Ultimate compression strength: 135MPa
Folding strength: 16.5MPa
Young's modulus: 47.6GPa
Anti-permeability performance: >=P30, P30 grade is without infiltration height
Carbonization resistance: it is 0 that carbonization in 28 days is detected as carbonation depth
Displacement flux (Anti-Chloride Ion Penetration): 0.4*10 -12m 2/ s
Freeze-thaw resistance: 600 circulations are without freeze thawing mass loss
Cohesiveness: adopt dope viscosity determinator to measure, the time is 89 seconds, standard RPC slurry viscosimetric analysis 181 seconds;
Self compacting ability: divergence 391mm, form Self-leveling state, standard RPC slump is 14CM, without divergence;
The surface accumulation of salt in the surface soil: test one month through drying and watering cycle, surface is without accumulation of salt in the surface soil phenomenon, and standard RPC has accumulation of salt in the surface soil phenomenon;
Chemical resistance: invade respectively bubble the hydrochloric acid soln of the sulphuric acid soln of PH=2, PH=3, PH=4 acetum, 10% magnesium chloride, 10% metabisulfite solution in, within 28 days, detect, weight free of losses, intensity free of losses.

Claims (8)

1. a Green environmentally-friebroken broken stone active powder concrete, it is characterized in that being made up of the raw material of following mass distribution ratio:
The low alkali portland cement of median size 30 ~ 60 μm or ordinary Portland cement 485 ~ 580 parts;
Median size 0.18 μm, SiO 2the silicon ash of content>=85% 105 ~ 145 parts;
100 ~ 130 parts, I grade of flyash of median size 10 ~ 20 μm;
The above breeze of S95 level 100 ~ 130 parts of median size 10 ~ 30 μm;
Particle diameter is the quartz sand 510 ~ 590 parts of 0.16 ~ 1.63mm;
Particle diameter is 795 ~ 880 parts, the stone of 5 ~ 14mm;
The composite superplasticizer 15 ~ 18 parts that water-reducing rate is greater than 30%;
Rust inhibitor 7 ~ 12 parts;
135 ~ 165 parts, water;
The copper plated steel fiber 80 ~ 160 parts that diameter is 0.18 ~ 0.25mm, length is 10 ~ 15mm.
2. Green environmentally-friebroken broken stone active powder concrete as claimed in claim 1, it is characterized in that being made up of the raw material of following mass distribution ratio:
The low alkali portland cement of median size 30 ~ 60 μm or ordinary Portland cement 510 ~ 540 parts;
Median size 0.18 μm, SiO 2the silicon ash of content>=85% 115 ~ 135 parts;
110 ~ 120 parts, I grade of flyash of median size 10 ~ 20 μm;
The above breeze of S95 level 110 ~ 120 parts of median size 10 ~ 30 μm;
Particle diameter is the quartz sand 550 ~ 570 parts of 0.16 ~ 1.63mm;
Particle diameter is 830 ~ 840 parts, the stone of 5 ~ 14mm;
The composite superplasticizer 16 ~ 17 parts that water-reducing rate is greater than 30%;
Rust inhibitor 9 ~ 10 parts;
145 ~ 155 parts, water;
Diameter is the copper plated steel fiber 90 ~ 120 parts of 0.18 ~ 0.25mm, length 10 ~ 15mm.
3. Green environmentally-friebroken broken stone active powder concrete as claimed in claim 1 or 2, it is characterized in that the calcium oxide content in described flyash is≤10%, free calcium oxide content is 0.
4. Green environmentally-friebroken broken stone active powder concrete as claimed in claim 1 or 2, is characterized in that the crush index of described stone is less than 10%, elongated particles is less than 5%, silt content is less than 0.5%.
5. Green environmentally-friebroken broken stone active powder concrete as claimed in claim 4, is characterized in that described stone is the stone of particle diameter 5 ~ 14mm continuous grading.
6. Green environmentally-friebroken broken stone active powder concrete as claimed in claim 1 or 2, is characterized in that the main component of described composite superplasticizer is defoamer, air entrapment agent, synergistic agent and high efficiency water reducing agent.
7. Green environmentally-friebroken broken stone active powder concrete as claimed in claim 1 or 2, is characterized in that described rust inhibitor is triethanolamine borate and silicone based the rust inhibitor.
8. the preparation method of Green environmentally-friebroken broken stone active powder concrete described in claim 1 or 2, is characterized in that comprising the following steps:
(1) copper plated steel fiber and quartz sand are added stirrer and stir 2 ~ 3 minutes to being uniformly dispersed;
(2) in stirrer, add cement, silicon ash, flyash and breeze continue stirring 1 ~ 2 minute to evenly for subsequent use;
(3) in above-mentioned stirring lay-by material, adding rust inhibitor, composite superplasticizer and water successively continuing stirring 2 ~ 3 minutes to being uniformly dispersed;
(4) add stone stirring and obtain described Green environmentally-friebroken broken stone active powder concrete after 1 ~ 2 minute.
CN201310048632.0A 2013-02-07 2013-02-07 Green environmentally-friendly broken stone active powder concrete Active CN103224357B (en)

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