CN106673567A - High-performance concrete - Google Patents

High-performance concrete Download PDF

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Publication number
CN106673567A
CN106673567A CN201610878359.8A CN201610878359A CN106673567A CN 106673567 A CN106673567 A CN 106673567A CN 201610878359 A CN201610878359 A CN 201610878359A CN 106673567 A CN106673567 A CN 106673567A
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China
Prior art keywords
weight
solution
parts
water
performance concrete
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Application number
CN201610878359.8A
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Chinese (zh)
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CN106673567B (en
Inventor
陈望能
秦国新
笪俊
梅杰
庞宾
张凯
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Jiangsu Jian Yuan Building Materials Research Institute Co Ltd
Jiangsu Haining New Building Material Technology Co Ltd
Original Assignee
Jiangsu Jian Yuan Building Materials Research Institute Co Ltd
Jiangsu Haining New Building Material Technology Co Ltd
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Application filed by Jiangsu Jian Yuan Building Materials Research Institute Co Ltd, Jiangsu Haining New Building Material Technology Co Ltd filed Critical Jiangsu Jian Yuan Building Materials Research Institute Co Ltd
Priority to CN201610878359.8A priority Critical patent/CN106673567B/en
Publication of CN106673567A publication Critical patent/CN106673567A/en
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Publication of CN106673567B publication Critical patent/CN106673567B/en
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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • C04B28/08Slag cements
    • C04B28/082Steelmaking slags; Converter slags
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039Premixtures of ingredients
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/302Water reducers

Abstract

The invention belongs to the technical field of concrete, and particularly relates to high-performance concrete. The high-performance concrete is composed of the following components in parts by weight: 400-550 parts of cementing materials, 1000-1200 parts of coarse aggregates, 600-750 parts of fine aggregates, 4-6 parts of a compound water reducing agent, 0.02-0.06 parts of triterpenoid saponin in camellia oleifera and 140-150 parts of water. The concrete provided by the invention has advantages of high workability, high volume stability, high durability and the like.

Description

A kind of high performance concrete
Technical field
The present invention relates to technical field of concrete, more particularly to a kind of application property is good, volume stability is good, good endurance High performance concrete.
Background technology
Concrete, referred to as " concrete (t ó ng) ", refer to the cementing integral engineered composite material of aggregate by Binder Materials General designation.The concrete generally said to be referred to and make Binder Materials, sand, masonry aggregate with cement;(additive and blending can be contained with water Material) coordinate by a certain percentage, it is agitated obtained by cement concrete, also referred to as normal concrete, it is widely used in civil engineering.
With the fast development of building industry, workability, intensity to the concrete used in building course and durable Performance requirement is improved constantly.The application property of concrete, volume stability and durability need further to carry in prior art Height, and the development of innovative cement formula causes acquisition high performance concrete to be possibly realized.
The content of the invention
In order to solve problem present in above-mentioned technology, it is an object of the invention to provide a kind of application property is good, volume is steady The high performance concrete of qualitative good, good endurance.
To realize above-mentioned technical purpose, the present invention adopts following technical scheme:
A kind of high performance concrete, is made up of the component of following parts by weight:400~550 parts of Binder Materials, coarse aggregate 1000~1200 parts, 600~750 parts of fine aggregate, 4~6 parts of composite water-reducing agent, 0.02~0.06 part of oil tea triterpenoid saponin, water 140 ~150 parts.
Wherein, the Binder Materials by 50~60 weight portion strength grades not less than 42.5 grades common portland cement, 15~20 weight part ratio surface areas are not less than 400kg/m3Regeneration concrete micro mist, 25~30 weight portion steel-making slag powders composition.
The composite water-reducing agent by 80~100 weight portion molecular levels 2400~5000 methacrylic polyoxyethylene Ether, 5~8 parts by weight of acrylic acid hydroxyl ethyl esters, 10~15 parts by weight of acrylic acid, 0.2~0.5 weight portion mercaptopropionic acid, 0.1~0.5 Weight portion ascorbic acid, the hydrogenperoxide steam generator of 0.4~1 weight portion mass concentration 25~35%, 10~15 weight portion quality are dense The sodium hydroxide solution of degree 30~35%, 20~40 weight portion sodium gluconates, 1~2 weight portion organic silicon defoamer and 800~ 850 weight portion soft water are constituted.
The preparation technology of the composite water-reducing agent is as follows:
(1) each raw material components are got out by said ratio;By methyl allyl polyoxyethylene ether, hydroxy-ethyl acrylate, have In machine silicon defoaming agent, 70 weight portion soft water input reactor, hydrogenperoxide steam generator is stirred and added, make solution temperature in reactor Warm naturally to 43~47 DEG C;
(2) acrylic acid and 40 weight portion soft water are configured into solution I;By mercaptopropionic acid, ascorbic acid and 90 weight portion water It is configured to solution II;
It is stable after 43~47 DEG C after solution temperature in kettle, start that solution I and solution II is added dropwise into kettle;Solution I and molten After the completion of dropping of liquid II, continue insulation reaction 50~60 minutes;
(3) step (2) product is neutralized into pH value for 6 with sodium hydroxide solution;
(4) product after neutralization, sodium gluconate and remaining soft water are configured into solid masses content for 14~ 16% composite water-reducing agent.
Preferably, in step (2), the time for adding of solution I is 180 minutes, the time for adding of solution II is 210 minutes.
Compared with prior art, the inventive method has at least following beneficial effect:
(1) present invention composite water-reducing agent water-reducing rate used is more than 30%, and decrement reaches more than 25%, and concrete initially collapses Degree of falling reaches 220~230mm, and 1 hour slump-loss is less than 15mm, therefore, this concrete has high workability (height construction Property).
(2) present invention is cement components from regeneration concrete micro mist, the Self-curing effect that regenerative micro powder has, with Composite water-reducing agent reduces effect, is remarkably improved the early strong cracking resistance of concrete, therefore, this concrete has high volume stability Property.
(3) spread ratio that oil tea triterpenoid saponin is introduced into the bubble in concrete is 0.2~0.3mm, and concrete is undergoing Relative dynamic elastic modulus retention rate after 200 Frozen-thawed cycleds be more than 90%, therefore, this concrete has high-durability.
Specific embodiment
With reference to embodiment, the present invention is expanded on further.In the following detailed description, only retouched by way of explanation Some one exemplary embodiments of the present invention are stated.Undoubtedly, one of ordinary skill in the art will recognize, without departing from In the case of the spirit and scope of the present invention, can be being modified to described embodiment with a variety of modes.
Embodiment 1
A kind of high performance concrete, is made up of the component of following parts by weight:400 parts of Binder Materials, 1000 parts of coarse aggregate, 600 parts of fine aggregate, 4 parts of composite water-reducing agent, 0.02 part of oil tea triterpenoid saponin, 140 parts of water.
Wherein, common portland cement, 15 weights of the Binder Materials by 50 weight portion strength grades not less than 42.5 grades Amount part specific surface area is not less than 400kg/m3Regeneration concrete micro mist, 25 weight portion steel-making slag powders composition;Coarse aggregate and fine aggregate Can no longer be described in detail using well known materials in prior art.
Methyl allyl polyoxyethylene ether, 5 weights of the composite water-reducing agent by 80 weight portion molecular levels 2400~5000 Amount part hydroxy-ethyl acrylate, 10 parts by weight of acrylic acid, 0.2 weight portion mercaptopropionic acid, 0.1 weight portion ascorbic acid, 0.4 weight portion The hydrogenperoxide steam generator of mass concentration 25~35%, the sodium hydroxide solution of 10 weight portion mass concentrations 30~35%, 20 weight Part sodium gluconate, 1 weight portion organic silicon defoamer and 800 weight portion soft water composition.
The preparation technology of the composite water-reducing agent is as follows:
(1) each raw material components are got out by said ratio;By methyl allyl polyoxyethylene ether, hydroxy-ethyl acrylate, have In machine silicon defoaming agent, 70 weight portion soft water input reactor, hydrogenperoxide steam generator is stirred and added, make solution temperature in reactor Warm naturally to 43~47 DEG C;
(2) acrylic acid and 40 weight portion soft water are configured into solution I;By mercaptopropionic acid, ascorbic acid and 90 weight portion water It is configured to solution II;
It is stable after 43~47 DEG C after solution temperature in kettle, start that solution I and solution II is added dropwise into kettle;Control solution I Time for adding is 180 minutes, and the time for adding of solution II is 210 minutes;After solution I and the completion of dropping of solution II, continue to be incubated instead Answer 50~60 minutes;
(3) step (2) product is neutralized into pH value for 6 with sodium hydroxide solution;
(4) product after neutralization, sodium gluconate and remaining soft water are configured into composite water-reducing agent.
Embodiment 2
A kind of high performance concrete, is made up of the component of following parts by weight:500 parts of Binder Materials, 1100 parts of coarse aggregate, 650 parts of fine aggregate, 5 parts of composite water-reducing agent, 0.04 part of oil tea triterpenoid saponin, 144 parts of water.
Wherein, common portland cement, 18 weights of the Binder Materials by 55 weight portion strength grades not less than 42.5 grades Amount part specific surface area is not less than 400kg/m3Regeneration concrete micro mist, 28 weight portion steel-making slag powders composition.
Methyl allyl polyoxyethylene ether, 7 weights of the composite water-reducing agent by 90 weight portion molecular levels 2400~5000 Amount part hydroxy-ethyl acrylate, 12 parts by weight of acrylic acid, 0.4 weight portion mercaptopropionic acid, 0.3 weight portion ascorbic acid, 0.7 weight portion The hydrogenperoxide steam generator of mass concentration 25~35%, the sodium hydroxide solution of 12 weight portion mass concentrations 30~35%, 30 weight Part sodium gluconate, 1.5 weight portion organic silicon defoamers and 820 weight portion soft water composition.
The preparation technology of composite water-reducing agent refer to embodiment 1, and here is no longer described in detail.
Embodiment 3
A kind of high performance concrete, is made up of the component of following parts by weight:550 parts of Binder Materials, 1200 parts of coarse aggregate, 750 parts of fine aggregate, 6 parts of composite water-reducing agent, 0.06 part of oil tea triterpenoid saponin, 150 parts of water.
Wherein, common portland cement, 20 weights of the Binder Materials by 60 weight portion strength grades not less than 42.5 grades Amount part specific surface area is not less than 400kg/m3Regeneration concrete micro mist, 30 weight portion steel-making slag powders composition.
Methyl allyl polyoxyethylene ether, 8 weights of the composite water-reducing agent by 100 weight portion molecular levels 2400~5000 Amount part hydroxy-ethyl acrylate, 15 parts by weight of acrylic acid, 0.5 weight portion mercaptopropionic acid, 0.5 weight portion ascorbic acid, 1 weight portion matter Hydrogenperoxide steam generator, the sodium hydroxide solution of 15 weight portion mass concentrations 30~35%, 40 weight portions of amount concentration 25~35% Sodium gluconate, 2 weight portion organic silicon defoamers and 850 weight portion soft water composition.
Jing actual Concretes experiment, the concrete initial slump prepared by the present invention reaches 220~230mm, and 1 Hour slump-loss is respectively less than 15mm, with good application property, volume stability and durability.
Schematically specific embodiment of the invention is the foregoing is only, the scope of the present invention is not limited to.It is any Those skilled in the art, done equivalent variations and modification on the premise of the design without departing from the present invention and principle, The scope of protection of the invention should be belonged to.

Claims (5)

1. a kind of high performance concrete, it is characterised in that be made up of the component of following parts by weight:Binder Materials 400~550 Part, 1000~1200 parts of coarse aggregate, 600~750 parts of fine aggregate, 4~6 parts of composite water-reducing agent, oil tea triterpenoid saponin 0.02~ 0.06 part, 140~150 parts of water.
2. high performance concrete as claimed in claim 1, it is characterised in that:The Binder Materials is by 50~60 weight portion intensity Common portland cement, 15~20 weight part ratio surface areas of the grade not less than 42.5 grades are not less than 400kg/m3Regeneration coagulation Native micro mist, 25~30 weight portion steel-making slag powders composition.
3. high performance concrete as claimed in claim 1, it is characterised in that:The composite water-reducing agent is by 80~100 weight portions The methyl allyl polyoxyethylene ether of molecular level 2400~5000,5~8 parts by weight of acrylic acid hydroxyl ethyl esters, 10~15 weight portions Acrylic acid, 0.2~0.5 weight portion mercaptopropionic acid, 0.1~0.5 weight portion ascorbic acid, 0.4~1 weight portion mass concentration 25~ 35% hydrogenperoxide steam generator, the sodium hydroxide solution of 10~15 weight portion mass concentrations 30~35%, 20~40 weight portion Portugals Grape sodium saccharate, 1~2 weight portion organic silicon defoamer and 800~850 weight portion soft water composition.
4. high performance concrete as claimed in claim 3, it is characterised in that the preparation technology of the composite water-reducing agent is as follows:
(1) each raw material components are got out by proportioning in claim 3;By methyl allyl polyoxyethylene ether, hydroxy-ethyl acrylate, In organic silicon defoamer, 70 weight portion soft water input reactor, hydrogenperoxide steam generator is stirred and added, make solution temperature in reactor Degree warms naturally to 43~47 DEG C;
(2) acrylic acid and 40 weight portion soft water are configured into solution I;Mercaptopropionic acid, ascorbic acid and 90 weight portion water are prepared Into solution II;
It is stable after 43~47 DEG C after solution temperature in kettle, start that solution I and solution II is added dropwise into kettle;Solution I and solution II After completion of dropping, continue insulation reaction 50~60 minutes;
(3) step (2) product is neutralized into pH value for 6 with sodium hydroxide solution;
(4) it is 14~16% the product after neutralization, sodium gluconate and remaining soft water to be configured into solid masses content Composite water-reducing agent.
5. high performance concrete as claimed in claim 4, it is characterised in that:In step (2), the time for adding of solution I is 180 points Clock, the time for adding of solution II is 210 minutes.
CN201610878359.8A 2016-09-30 2016-09-30 A kind of high performance concrete Active CN106673567B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109824330A (en) * 2019-03-29 2019-05-31 江苏宇航建材科技有限公司 A kind of high-performance middle-and-low strength concrete
CN111116844A (en) * 2020-01-18 2020-05-08 广东汇强外加剂有限公司 Air-entraining type polycarboxylate superplasticizer and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001031457A (en) * 1999-07-16 2001-02-06 Taiheiyo Cement Corp High strength concrete
CN105036598A (en) * 2015-07-27 2015-11-11 昆山市建国混凝土制品有限公司 Efficient concrete water reducing agent and concrete
CN105130347A (en) * 2015-07-10 2015-12-09 同济大学 Preparation method of high-work-performance regenerated concrete
CN105541162A (en) * 2016-02-01 2016-05-04 合肥元旭环保新型材料有限公司 High-performance water reducing agent used for concrete and preparation method thereof
CN105731919A (en) * 2016-01-05 2016-07-06 葛洲坝集团试验检测有限公司 Concrete with ultrahigh content of mixed fly ash

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001031457A (en) * 1999-07-16 2001-02-06 Taiheiyo Cement Corp High strength concrete
CN105130347A (en) * 2015-07-10 2015-12-09 同济大学 Preparation method of high-work-performance regenerated concrete
CN105036598A (en) * 2015-07-27 2015-11-11 昆山市建国混凝土制品有限公司 Efficient concrete water reducing agent and concrete
CN105731919A (en) * 2016-01-05 2016-07-06 葛洲坝集团试验检测有限公司 Concrete with ultrahigh content of mixed fly ash
CN105541162A (en) * 2016-02-01 2016-05-04 合肥元旭环保新型材料有限公司 High-performance water reducing agent used for concrete and preparation method thereof

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Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109824330A (en) * 2019-03-29 2019-05-31 江苏宇航建材科技有限公司 A kind of high-performance middle-and-low strength concrete
CN111116844A (en) * 2020-01-18 2020-05-08 广东汇强外加剂有限公司 Air-entraining type polycarboxylate superplasticizer and preparation method thereof

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