CN107265980A - A kind of low glue material self-compacting concrete and compound method for mixing ultra fine sand - Google Patents
A kind of low glue material self-compacting concrete and compound method for mixing ultra fine sand Download PDFInfo
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- CN107265980A CN107265980A CN201710603725.3A CN201710603725A CN107265980A CN 107265980 A CN107265980 A CN 107265980A CN 201710603725 A CN201710603725 A CN 201710603725A CN 107265980 A CN107265980 A CN 107265980A
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- ultra fine
- fine sand
- compacting concrete
- glue material
- material self
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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
- 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
The invention discloses a kind of low glue material self-compacting concrete and compound method for mixing ultra fine sand, it is made up of binder materials, aggregate, additive, water, described binder materials is cement, flyash, ground blast furnace slag composition, aggregate is ultra fine sand, Machine-made Sand, stone composition, and described weight proportion is：Cement is 252~270kg/m3；Flyash is 54~70 kg/m3；Miberal powder is 54~70 kg/m3；Ultra fine sand is 232~248 kg/m3；Machine-made Sand is 570~580 kg/m3；Stone is 1002~1033 kg/m3；Water is 165~173 kg/m3；Additive is 6~7 kg/m3.Described additive is polycarboxylic acid pumping admixture, the present invention solves the problem of full machine-made sand concrete workability difference, this compound method not only has the service behaviour of good stability, mobility, cohesiveness, water-retaining property and clearance through, and simple production process, and product cost is low.
Description
Technical field
It is especially a kind of low glue material self-compacting concrete for mixing ultra fine sand and preparation the present invention relates to building material field
Method.
Background technology
Self-compacting concrete has significant superiority in terms of reduction construction cost, improvement construction environment, embodies
The facade lighting of green energy conservation.Self-compacting concrete has excellent service behaviour, compared to normal concrete, is improving construction speed
Degree, ensure construction quality, reduce it is artificial, improve and have a clear superiority in terms of construction environment.But prepare self-compacting concrete
It is generally necessary to more binder materials, and high gel material content can cause Cost of Concrete to increase, therefore China's construction project
Middle high intensity self-compacting concrete applies more, and the application of low-intensity self-compacting-concrete is less.In general, in order to reach
Being more than 500kg/m3 binder total amount in the effect of self-compaction, concrete mix more.Regular tenacity grade concrete is
The effect of self-compaction is reached, its gel material content is excessive, makes intensity exceeded, cost increase.Which prevent regular tenacity etc.
The extensive use of level self-compacting concrete.Therefore, inexpensive, in stable condition regular tenacity grade self-compacting concrete has now
Real engineering significance.
Natural sand resource by main representative of river sand is constantly deficient, compared with natural river sand, Machine-made Sand generally existing
The problems such as content of the grade with not good, coarse, multi-angular, mud and stone flour is high, therefore commonly the match ratio of self-compacting concrete is set
Meter is not suitable for the low glue material self-compacting concrete of large dosage Machine-made Sand.
The content of the invention
Therefore, in order to solve above-mentioned deficiency, the present invention provides a kind of low glue material self-compacting concrete for mixing ultra fine sand herein
And compound method；Not only there is the service behaviour of good stability, mobility, cohesiveness, water-retaining property and clearance through, and
And simple production process, product cost is low.
The present invention, which is achieved in that, constructs a kind of low glue material self-compacting concrete for mixing ultra fine sand, it is characterised in that：Institute
Raw material and weight proportion are as follows：
Cement：252~270
Flyash：54~70
Miberal powder：54~70
Ultra fine sand：232~248
Machine-made Sand：570~580
Stone：1002~1033
Water：165~173
Additive：6~7.
A kind of low glue material self-compacting concrete for mixing ultra fine sand of the present invention, it is characterised in that：Described cement is
42.5 Portland cements.
A kind of low glue material self-compacting concrete for mixing ultra fine sand of the present invention, it is characterised in that：Described flyash
Flyash is selected for light breeze.
A kind of low glue material self-compacting concrete for mixing ultra fine sand of the present invention, it is characterised in that：Described miberal powder is
S95 ground blast furnace slags.
A kind of low glue material self-compacting concrete for mixing ultra fine sand of the present invention, it is characterised in that：Described ultra fine sand
Modulus of fineness 1.0~1.2,1.25mm standard screens, which tail over to account for 0~2%, 0.630mm standard screens and tail over, accounts for 22%~24%, 0.315mm
Standard screen, which tails over to account for 23~25%, 0.150mm standard screens and tail over, accounts for 21~23%.
A kind of low glue material self-compacting concrete for mixing ultra fine sand of the present invention, it is characterised in that：Described Machine-made Sand
Modulus of fineness 2.8~3.0, content of stone powder is less than 8%；4.75mm standard screens are tailed over to account for 12~14%, 2.36mm standard screens and tail over and accounted for
24%~26%, 1.25mm standard screen, which tail over to account for 25~27%, 0.630mm standard screens and tail over, accounts for 36%~38%, 0.315mm standard screens
Tail over to account for 47~49%, 0.150mm standard screens and tail over and account for 39~41%.
A kind of low glue material self-compacting concrete for mixing ultra fine sand of the present invention, it is characterised in that：Described stone grain
5~20mm of footpath, clay content is less than 1.0%, and gill shape is less than 8%.
A kind of low glue material self-compacting concrete for mixing ultra fine sand of the present invention, it is characterised in that：Described additive
For polycarboxylic acid pumping admixture.
A kind of compound method for the low glue material self-compacting concrete for mixing ultra fine sand, it is characterised in that：Specific preparation steps are such as
Under：
(1) weigh：Raw material are weighed by match ratio；
(2) stir：First ultra fine sand, Machine-made Sand, stone are put into concrete forced stirrer, stirs 0.5 minute, adds glue
Gel material, is stirred 0.5 minute, finally adds water and additive, is stirred 1.5 minutes and is formed self-compacting concrete；
(3) shaping is poured：Performance test is completed, without in the case of vibrating, concrete mix construction molding is completed；It is simultaneously complete
Into 100mm × 100mm × 100mm resistance to compression test blocks, mark supports 3d, 28d, takes out test block, tests compression strength.
The invention has the advantages that：Not only have good stability, mobility, cohesiveness, water-retaining property and gap logical
The service behaviour for the property crossed, and simple production process, product cost are low.
Embodiment
The present invention is described in detail below, and the technical scheme in the embodiment of the present invention is carried out clearly and completely
Description, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
The present invention provides a kind of low glue material self-compacting concrete for mixing ultra fine sand, following examples former material herein by improving
Material source explanation：
Cement is the Portland cement of Lafarge 42.5；
What flyash was selected is the yellow second class powered coal ash of Luo；
What miberal powder was selected is auspicious many S95 grades of ground blast furnace slags；
Ultra fine sand selects modulus of fineness 1.2, and 1.25mm standard screens, which tail over to account for 2%, 0.630mm standard screens and tail over, accounts for 23%, 0.315mm
Standard screen, which tails over to account for 24%, 0.150mm standard screens and tail over, accounts for 22%.,；Coarse aggregate size scope is 5~20mm, and clay content is less than
1.0%, gill shape is 6%；
Mechanism grain fineness number modulus 3.0, content of stone powder 6%；4.75mm standard screens, which tail over to account for 13,2.36mm standard screens and tail over, accounts for 25%,
1.25mm standard screens tail over account for 26%, 0.630mm standard screens tail over account for 37%, 0.315mm standard screens tail over account for 48%, 0.150mm mark
Standard, which is tailed over, accounts for 40%.
Additive selects polycarboxylic acids efficient pumping aid；
Embodiment 1；A kind of low glue material self-compacting concrete for mixing ultra fine sand, raw material composition and weight are as follows
Mixing the low glue material self-compacting concrete preparation method of ultra fine sand includes the following steps：
(1) weigh：Raw material are weighed by match ratio
(2) stir：First ultra fine sand, Machine-made Sand, stone are put into concrete forced stirrer, stirs 0.5 minute, adds glue
Gel material, is stirred 0.5 minute, finally adds water and additive, is stirred 1.5 minutes and is formed self-compacting concrete.
(3) shaping is poured：Performance test is completed, without in the case of vibrating, concrete mix construction molding is completed.Together
When complete 100mm × 100mm × 100mm resistance to compression test blocks, mark support 7d, 28d, take out test block, test compression strength, test result is such as
Shown in table.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (9)
1. a kind of low glue material self-compacting concrete for mixing ultra fine sand, it is characterised in that：Raw material and weight proportion used are as follows：
Cement：252~270
Flyash：54~70
Miberal powder：54~70
Ultra fine sand：232~248
Machine-made Sand：570~580
Stone：1002~1033
Water：165~173
Additive：6~7.
2. a kind of low glue material self-compacting concrete for mixing ultra fine sand as claimed in claim 1, it is characterised in that：Described cement
For 42.5 Portland cements.
3. a kind of low glue material self-compacting concrete for mixing ultra fine sand as claimed in claim 1, it is characterised in that：Described fine coal
Ash selects flyash for light breeze.
4. a kind of low glue material self-compacting concrete for mixing ultra fine sand as claimed in claim 1, it is characterised in that：Described miberal powder
For S95 ground blast furnace slags.
5. a kind of low glue material self-compacting concrete for mixing ultra fine sand as claimed in claim 1, it is characterised in that：Described spy is thin
Grain fineness number modulus 1.0~1.2,1.25mm standard screens, which tail over to account for 0~2%, 0.630mm standard screens and tail over, accounts for 22%~24%,
0.315mm standard screens, which tail over to account for 23~25%, 0.150mm standard screens and tail over, accounts for 21~23%.
6. a kind of low glue material self-compacting concrete for mixing ultra fine sand as claimed in claim 1, it is characterised in that：Described mechanism
Grain fineness number modulus 2.8~3.0, content of stone powder is less than 8%；4.75mm standard screens, which are tailed over, to be accounted for 12~14%, 2.36mm standard screens and tails over
Account for 24%~26%, 1.25mm standard screens and tail over to account for 25~27%, 0.630mm standard screens and tail over and account for 36%~38%, 0.315mm standards
Tail over to account for 47~49%, 0.150mm standard screens and tail over and account for 39~41%.
7. a kind of low glue material self-compacting concrete for mixing ultra fine sand as claimed in claim 1, it is characterised in that：Described stone
5~20mm of seed footpath, clay content is less than 1.0%, and gill shape is less than 8%.
8. a kind of low glue material self-compacting concrete for mixing ultra fine sand as claimed in claim 1, it is characterised in that：Described is additional
Agent is polycarboxylic acid pumping admixture.
9. a kind of compound method for the low glue material self-compacting concrete for mixing ultra fine sand, it is characterised in that：Specific preparation steps are as follows：
(1) weigh：Raw material are weighed by match ratio；
(2) stir：First ultra fine sand, Machine-made Sand, stone are put into concrete forced stirrer, stirs 0.5 minute, adds glue
Gel material, is stirred 0.5 minute, finally adds water and additive, is stirred 1.5 minutes and is formed self-compacting concrete；
(3) shaping is poured：Performance test is completed, without in the case of vibrating, concrete mix construction molding is completed；It is simultaneously complete
Into 100mm × 100mm × 100mm resistance to compression test blocks, mark supports 3d, 28d, takes out test block, tests compression strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710603725.3A CN107265980A (en) | 2017-07-23 | 2017-07-23 | A kind of low glue material self-compacting concrete and compound method for mixing ultra fine sand |
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| CN201710603725.3A CN107265980A (en) | 2017-07-23 | 2017-07-23 | A kind of low glue material self-compacting concrete and compound method for mixing ultra fine sand |
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| CN201710603725.3A Pending CN107265980A (en) | 2017-07-23 | 2017-07-23 | A kind of low glue material self-compacting concrete and compound method for mixing ultra fine sand |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109485351A (en) * | 2019-01-07 | 2019-03-19 | 河北联众谊诚混凝土有限公司 | A kind of concrete and its processing technology |
| CN110128062A (en) * | 2019-05-08 | 2019-08-16 | 苏州良浦住宅工业有限公司 | A kind of lightweight concrete material of architectural prefab and preparation method thereof |
| CN110330285A (en) * | 2019-05-08 | 2019-10-15 | 苏州良浦住宅工业有限公司 | A kind of machine-made sand concrete material of architectural prefab and preparation method thereof |
| CN114656224A (en) * | 2022-04-27 | 2022-06-24 | 水利部交通运输部国家能源局南京水利科学研究院 | Low-cementing-material self-compacting concrete and preparation method thereof |
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| CN102060481A (en) * | 2010-11-15 | 2011-05-18 | 北京新奥混凝土集团有限公司 | Low cementitious material self-compacting concrete |
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| CN102241495A (en) * | 2011-06-01 | 2011-11-16 | 上海建工材料工程有限公司 | Ultrafine mixed sand concrete by using additive |
| CN102503279A (en) * | 2011-11-09 | 2012-06-20 | 中冶建工集团有限公司 | Large-flowability and high-strength concrete |
| CN106396522A (en) * | 2016-08-31 | 2017-02-15 | 重庆市忠州曼子建材集团有限公司 | High-performance concrete |
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2017
- 2017-07-23 CN CN201710603725.3A patent/CN107265980A/en active Pending
Patent Citations (5)
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| CN102060481A (en) * | 2010-11-15 | 2011-05-18 | 北京新奥混凝土集团有限公司 | Low cementitious material self-compacting concrete |
| CN102060482A (en) * | 2010-11-15 | 2011-05-18 | 北京新奥混凝土集团有限公司 | Self-compacting concrete |
| CN102241495A (en) * | 2011-06-01 | 2011-11-16 | 上海建工材料工程有限公司 | Ultrafine mixed sand concrete by using additive |
| CN102503279A (en) * | 2011-11-09 | 2012-06-20 | 中冶建工集团有限公司 | Large-flowability and high-strength concrete |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109485351A (en) * | 2019-01-07 | 2019-03-19 | 河北联众谊诚混凝土有限公司 | A kind of concrete and its processing technology |
| CN110128062A (en) * | 2019-05-08 | 2019-08-16 | 苏州良浦住宅工业有限公司 | A kind of lightweight concrete material of architectural prefab and preparation method thereof |
| CN110330285A (en) * | 2019-05-08 | 2019-10-15 | 苏州良浦住宅工业有限公司 | A kind of machine-made sand concrete material of architectural prefab and preparation method thereof |
| CN114656224A (en) * | 2022-04-27 | 2022-06-24 | 水利部交通运输部国家能源局南京水利科学研究院 | Low-cementing-material self-compacting concrete and preparation method thereof |
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Application publication date: 20171020 |