CN106542788A - A kind of Machine-made Sand C120 steel fibre pump concretes and preparation method thereof - Google Patents
A kind of Machine-made Sand C120 steel fibre pump concretes and preparation method thereof Download PDFInfo
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- CN106542788A CN106542788A CN201610904702.1A CN201610904702A CN106542788A CN 106542788 A CN106542788 A CN 106542788A CN 201610904702 A CN201610904702 A CN 201610904702A CN 106542788 A CN106542788 A CN 106542788A
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- Prior art keywords
- steel fibre
- concrete
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- cement
- flyash
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Classifications
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A kind of Machine-made Sand C120 steel fibre pump concretes and preparation method thereof, the raw material mass mixture ratio of the concrete is：Cement 420～460, flyash 80～100, washed-out sand 700～780, rubble 970～1010, water 150～170, silicon ash 50～60, level is with regulation material 50～70, polycarboxylic admixture 11～13, synergist 3.5～4.5, steel fibre 60～80.Preparation method is to take cement, flyash, washed-out sand, rubble, silicon ash, level in proportion with material is adjusted, and after 30 s of stirring, pours water, polycarboxylic admixture, synergist under stirring respectively, is then sprinkled into wherein steel fibre, and stirring is obtained.The concrete of the present invention is the super high strength concrete that intensity is even up to 140MPa ± 5 MPa more than 120 MPa, disclosure satisfy that the needs of special building.Suitable for producing steel fibre pumping super high strength concrete.
Description
Technical field
The present invention relates to concrete, more particularly to the concrete containing inorganic admixture Yu organic admixture.
Background field
CECS 104:99《High Strength Concrete Structures technical regulation》1.0.2 bar specifies：" high-strength concrete be using cement, sand,
C50～C80 that the mineral admixture such as the additives such as stone, high efficiency water reducing agent and flyash ultrafine slag silicon ash is prepared with common process
Level concrete." someone is defined as：High-strength concrete is the concrete that comprcssive strength meets or exceeds 60MPa；Super high strength concrete
It is concrete of the strength grade more than 100 MPa.
With the raising that building trade is required to construction material, high-strength concrete usage amount increase, to high-strength concrete
Intensity, service behaviour require corresponding raising., in mix-design, Binder Materials volume is big, particularly cement for high-strength concrete,
And the requirement to some other Binder Materials is also higher.Research both at home and abroad shows, when cement mixing content is big, thermal discharge during aquation
Greatly, crack is easily formed during construction, high to curing requirements, some match ratios are even without practical value.Further, since sandstone institute
With former stone comprcssive strength less than design concrete strength, many people think that and can not possibly be prepared with the former standby sandstone material made of stones of low-intensity
The strong concrete of superelevation.
In order to meet high request of the building trade to construction material, some high-strength concretes, nearly 10 years Shens are developed
Please Chinese patent have：No. 2006101240313《A kind of large fluidity and ultra high strength concrete》, No. ZL2008100226426《Tool
There is super high strength concrete of super high pump-conveying property and preparation method thereof》, No. ZL201310371448X《A kind of strong coagulation of superelevation
Soil》, No. ZL2013106704901《Low viscosity, the mean intensity 120MPa super high strength concrete of easily pumping》、
No. 2014108531899《A kind of lower shrinkage low viscosity super high strength concrete》, No. ZL2014102535400《One kind is easy to superelevation
The C120 super high strength concretes of layer pumping》, No. 2015106979388《A kind of C100～C120 level superelevation with high workability
Reinforced concrete》, No. ZL2015100420074《A kind of clinker-free cement super high strength concrete that utilization mixing plant waste water is prepared and
Its using method》, No. 2015109879305《Super high strength concrete with super high pump-conveying property and preparation method thereof》、
No. 2016100143930《A kind of ferronickel slag super high strength concrete and preparation method thereof》Deng these technical schemes both provide height
The preparation method of reinforced concrete, but the requirement of building trade may not be fully met.Therefore people need to continue to develop more
Can adapt to the super high strength concrete needed with special building.
The content of the invention
The present invention is intended to provide a kind of Machine-made Sand C120 steel fibre pump concretes, its strength grade is made more than 120 MPa
The needs that disclosure satisfy that some special buildings.
It is a further object of the present invention to provide the preparation method of Machine-made Sand C120 steel fibre pump concretes so as to Neng Goushi
Border is applied to the concreting of special building.
Inventor is through development test, there is provided Machine-made Sand C120 steel fibre pump concretes, per 1m3Concrete be by with
Made by the raw material of lower quality proportioning：
Raw material weight (kg)
Cement 420～460
Flyash 80～100
Washed-out sand 700～780
Rubble 970～1010
Water 150～170
Silicon ash 50～60
Level is with regulation material 50～70
Polycarboxylic admixture 11～13
Synergist 3.5～4.5
Steel fibre 60～80
The cement is 52.5 grades of portland cement；The flyash is second-level ash；The washing grain fineness number modulus 2.7～
3.0, methylene blue number is 0.7；The ballast grain sizes be 5～20mm, continuous grading, 80～90MPa of compressive strength of rock；The silicon
Grey specific surface area is more than 15000m2/kg；The level is distributed in 0.1～20 μm with material particle size is adjusted；The polycarboxylic admixture
It is the product of the outstanding person Point-400S of trade name section；The Concrete synergist is the product of three person of outstanding talent CTF of trade name Guangzhou；
The steel fibre specification is 0.5 × 2.0mm of Φ.
The preparation method of the Machine-made Sand C120 steel fibre pump concretes that inventor provides is to meet national standard condition
Lower to choose various raw materials, by adjusting level with the ratio for adjusting material and other raw materials, the microstage of optimised coagulation soil is matched somebody with somebody, from physics
Filling angle improves the intensity of product；Specific practice is to take cement, flyash, washed-out sand, rubble, silicon ash, level by formula proportion
With material is adjusted, after 30 s are stirred in blender, under agitation, respectively water, polycarboxylic admixture, synergist are poured into
Blender, is then sprinkled into steel fibre in blender, stirs 4 min, and super high strength concrete is obtained.
The Machine-made Sand C120 steel fibre pump concretes of the present invention, are intensity more than 120 MPa or even can reach
The super high strength concrete of 140MPa ± 5 MPa, it can not only meet the needs of some special buildings, and can realize pump
Send, convenient construction operation.The preparation method of the super high strength concrete is simple and quick, sandstone used to former stone comprcssive strength require compared with
It is low, reduces cost.Suitable for producing steel fibre pumping super high strength concrete.
Specific embodiment
1 super high strength concrete of embodiment, which is per 1m3The raw material of concrete and weight composition are as follows：
Raw material weight
440 kg of cement
90 kg of flyash
760 kg of washed-out sand
990 kg of rubble
150 kg of water
56 kg of silicon ash
Level is with regulation 60 kg of material
11.6 kg of polycarboxylic admixture
3.9 kg of synergist
60 kg of steel fibre
52.5 grades of Portland cements of cement selection Qingzhen County, guizhou Province, china Carnis Rapanae thomasianae cement plant production used, its performance meet GB175-
2007 regulation；Flyash used selects Jinsha Power Plant second-level ash；Washing grain fineness number modulus 2.7～3.0 used；Rubble grain used
Footpath be 5～20mm, continuous grading, 80～90MPa of compressive strength of rock；Silicon ash specific surface area used is more than 15000m2/kg；Institute
With level with the levigate quartz powder that regulation material is Guizhou Chao Ya nano materials company；Polycarboxylic admixture used is trade name
The product of the outstanding person Point-400S of section；Concrete synergist used is the product of three person of outstanding talent CTF of trade name Guangzhou；Steel fibre used
Specification is 0.5 × 2.0mm of Φ.
Preparation method is：By 52.5 grades of Portland cements, power plant's second class powered coal ash, modulus of fineness 2.7～3.0 water
Washed-out sand, particle diameter are the rubble of 5～20mm, specific surface area more than 15000m2The silicon ash of/kg, levigate quartz powder are according to the above ratio
Taken amount, after 30 s are stirred in blender, under agitation, respectively by water, the outstanding person Point-400S of trade name section it is poly-
Carboxylic acid additive, the synergist of three person of outstanding talent CTF of trade name Guangzhou pour blender into, then by specification for 0.5 × 2.0mm of Φ steel
Fiber is sprinkled in blender, stirs 4 min, and super high strength concrete is obtained.
4～the 7s of time that decays is surveyed, goes out machine 220～250mm of the slump, 620～650mm of divergence, 28d comprcssive strength
140～145MPa.
2 super high strength concrete of embodiment, which is per 1m3The raw material of concrete and weight composition are as follows：
Raw material weight
440 kg of cement
90 kg of flyash
700 kg of washed-out sand
1000 kg of rubble
160 kg of water
56 kg of silicon ash
Level is with regulation 60 kg of material
12.6 kg of polycarboxylic admixture
3.9 kg of synergist
60 kg of steel fibre
Raw materials used source is with embodiment 1.
Preparation method is with embodiment 1.
Survey decay 6～7s of time, 630～650mm of divergence, 28d 135～140MPa of comprcssive strength.
Claims (2)
1. a kind of Machine-made Sand C120 steel fibre pump concretes, it is characterised in that per 1m3The concrete is by following quality proportioning
Made by raw material：
Raw material weight (kg)
Cement 420～460
Flyash 80～100
Washed-out sand 700～780
Rubble 970～1010
Water 150～170
Silicon ash 50～60
Level is with regulation material 50～70
Polycarboxylic admixture 11～13
Synergist 3.5～4.5
Steel fibre 60～80
The cement is 52.5 grades of Portland cement；The flyash is F class second-level ashs；The washing grain fineness number modulus
2.7～3.0, methylene blue number is 0.7；The ballast grain sizes be 5～20mm, continuous grading, 80～90MPa of compressive strength of rock；
The silicon ash specific surface area is more than 15000m2/kg；The level is distributed in 0.1～20 μm with material particle size is adjusted；The polycarboxylic acids
Additive is the product of the outstanding person Point-400S of trade name section；The Concrete synergist is three person of outstanding talent CTF of trade name Guangzhou
Product；The steel fibre specification is 0.5 × 2.0mm of Φ.
2. the method for preparing Machine-made Sand C120 steel fibre pump concretes described in claim 1, it is characterised in that by formula proportion
Cement, flyash, washed-out sand, rubble, silicon ash, level are taken with material is adjusted, after 30 s are stirred in blender, in stirring condition
Under, pour water, polycarboxylic admixture, synergist into blender respectively, then steel fibre be sprinkled in blender, stir 4 min,
Prepared super high strength concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610904702.1A CN106542788A (en) | 2016-10-18 | 2016-10-18 | A kind of Machine-made Sand C120 steel fibre pump concretes and preparation method thereof |
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| CN201610904702.1A CN106542788A (en) | 2016-10-18 | 2016-10-18 | A kind of Machine-made Sand C120 steel fibre pump concretes and preparation method thereof |
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| CN201610904702.1A Pending CN106542788A (en) | 2016-10-18 | 2016-10-18 | A kind of Machine-made Sand C120 steel fibre pump concretes and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147746A (en) * | 2017-12-29 | 2018-06-12 | 中建西部建设贵州有限公司 | A kind of Machine-made Sand C120 super high strength concretes for being easy to super high-rise pumping |
| CN109180091A (en) * | 2018-10-19 | 2019-01-11 | 中铁十八局集团有限公司 | A kind of machine-made sand concrete containing steel fibre |
| AT16500U1 (en) * | 2018-03-20 | 2019-11-15 | Kirchdorfer Fertigteilholding Gmbh | FIBER REINFORCING FIBER |
| CN113149545A (en) * | 2021-03-23 | 2021-07-23 | 贵州长通集团智造有限公司 | UHPC thin-wall electric pole and preparation method thereof |
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| CN101318801A (en) * | 2008-07-09 | 2008-12-10 | 东南大学 | Cement-base material with good movability and high intensity, and method of manufacturing the same |
| CN102108787A (en) * | 2010-12-29 | 2011-06-29 | 山西四建集团有限公司 | Construction method of ultra-high strength steel fiber concrete |
| CN104860613A (en) * | 2015-06-10 | 2015-08-26 | 上海建工材料工程有限公司 | 160MPa super-strength concrete with high cracking resistance and high fluidity |
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| CN102108787A (en) * | 2010-12-29 | 2011-06-29 | 山西四建集团有限公司 | Construction method of ultra-high strength steel fiber concrete |
| CN104860613A (en) * | 2015-06-10 | 2015-08-26 | 上海建工材料工程有限公司 | 160MPa super-strength concrete with high cracking resistance and high fluidity |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147746A (en) * | 2017-12-29 | 2018-06-12 | 中建西部建设贵州有限公司 | A kind of Machine-made Sand C120 super high strength concretes for being easy to super high-rise pumping |
| AT16500U1 (en) * | 2018-03-20 | 2019-11-15 | Kirchdorfer Fertigteilholding Gmbh | FIBER REINFORCING FIBER |
| CN109180091A (en) * | 2018-10-19 | 2019-01-11 | 中铁十八局集团有限公司 | A kind of machine-made sand concrete containing steel fibre |
| CN113149545A (en) * | 2021-03-23 | 2021-07-23 | 贵州长通集团智造有限公司 | UHPC thin-wall electric pole and preparation method thereof |
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Application publication date: 20170329 |