CN106145834A - A kind of self-compacting concrete - Google Patents
A kind of self-compacting concrete Download PDFInfo
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- CN106145834A CN106145834A CN201610486985.2A CN201610486985A CN106145834A CN 106145834 A CN106145834 A CN 106145834A CN 201610486985 A CN201610486985 A CN 201610486985A CN 106145834 A CN106145834 A CN 106145834A
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- compacting concrete
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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
- C04B28/06—Aluminous cements
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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 self-compacting concrete, its raw material includes by weight: cement 100 parts, composite blend 38 50 parts, 80 120 parts of sand of making pottery, rubble 150 250 parts, compound additive 1.3 2.05 parts, 25 30 parts of water；Wherein, the raw material of composite blend includes by weight: limestone 25 35 parts, 13 15 parts of flyash；The raw material of compound additive includes: naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, plasticizer.The present invention is cooperated according to proper ratio with cement, water, pottery sand, rubble by compound additive, composite blend, effectively reduces the frictional resistance between cement granules, while reducing concrete water amount, the mobility of the present invention is greatly improved.
Description
Technical field
The present invention relates to technical field of concrete, particularly relate to a kind of self-compacting concrete.
Background technology
Self-compacting concrete refers under self gravitation effect, it is possible to flowing, closely knit, also can be complete even if there is fine and close reinforcing bar
Full packing template, obtains fine homogeneity simultaneously, and need not the concrete of extraneous vibration.Self-compacting concrete is to workability
Requirement with durability is higher, requires the harshest to raw material and match ratio, and the mix-design of self-compacting concrete needs to fill
Divide and consider self-compacting concrete mobility, self-filling ability.Mobility and the self compacting ability of self-compacting concrete is not too at present
Good, accordingly, it is desirable to provide a kind of new self-compacting concrete.
Summary of the invention
The technical problem existed based on background technology, the present invention proposes a kind of self-compacting concrete, and the present invention is by multiple
Close additive, composite blend to cooperate according to proper ratio with cement, water, pottery sand, rubble, effectively reduction cement granules it
Between frictional resistance, reducing while concrete water amount, the mobility of the present invention be greatly improved.
A kind of self-compacting concrete that the present invention proposes, its raw material includes by weight: cement 100 parts, composite blend
38-50 part, sand 80-120 part of making pottery, rubble 150-250 part, compound additive 1.3-2.05 part, water 25-30 part；
Wherein, the raw material of composite blend includes by weight: limestone 25-35 part, flyash 13-15 part；
The raw material of compound additive includes: naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, plasticizer.
Preferably, cement is aluminum sulfate salt cement.
Preferably, in composite blend, the particle diameter of limestone is 0.7-0.9mm, and the particle diameter of flyash is 0.3-0.5mm.
Preferably, the particle diameter of pottery sand is 1-2mm.
Preferably, naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, the weight ratio of plasticizer are 1-1.2:
0.1-0.15:0.1-0.5:0.1-0.2.
Preferably, naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, the weight ratio of plasticizer are 1.1:
0.13:0.3:0.15.
Preferably, in rubble, the weight ratio of fine stone and coarse crushing stone is 1.5-2:8-8.5.
Preferably, in rubble, the particle diameter of fine stone is 8-12mm, and the particle diameter of coarse crushing stone is 15-25mm.
The preparation technology of the present invention is as follows: by composite blend, pottery sand, rubble, water mixing, stirs 20min, adds cement
Stirring 30min, adds compound additive mixing, and Cheng Mo, maintenance obtains self-compacting concrete.
The present invention passes through compound additive, composite blend with cement, water, pottery sand, rubble according to proper ratio phase interworking
Close, effectively reduce the frictional resistance between cement granules, while reducing concrete water amount, the stream of the present invention is greatly improved
Dynamic property, reaches self-compaction effect；Limestone and flyash cooperate with proper ratio can reduce water consumption, and can increase water
The mobility of mud；Naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, plasticizer cooperate with proper ratio, can
To reduce the consumption of water, extending the setting time of cement, be greatly increased the mobility of cement, sodium gluconate can also promote cement
Absorption to naphthalene series high-efficiency water-reducing agent, thus increase the mobility of the present invention further；The limestone of different-grain diameter, flyash,
Pottery sand, rubble cooperate, and uniformly mix with cement, water, fill voluntarily by size, closely knit, and coordinate cement and water
Cementation, mutually fills, closely knit, thus is greatly increased the intensity of the present invention.
Detailed description of the invention
Below, by specific embodiment, technical scheme is described in detail.
Embodiment 1
A kind of self-compacting concrete, its raw material includes by weight: cement 100 parts, composite blend 38 parts, sand 120 of making pottery
Part, rubble 150 parts, compound additive 2.05 parts, 25 parts of water；
Wherein, the raw material of composite blend includes by weight: limestone 25 parts, 13 parts of flyash；
The raw material of compound additive includes: naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, plasticizer.
Embodiment 2
A kind of self-compacting concrete, its raw material includes by weight: aluminum sulfate salt cement 100 parts, composite blend 50 parts,
Particle diameter is 80 parts of the pottery sand of 1mm, rubble 250 parts, compound additive 1.3 parts, 30 parts of water；
Wherein, the raw material of composite blend includes by weight: particle diameter is the limestone 35 parts of 0.7mm, and particle diameter is 0.3mm
15 parts of flyash；
The raw material of compound additive includes: naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, plasticizer, its
In, naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, the weight ratio of plasticizer are 1:0.15:0.1:0.2；
In rubble, the weight ratio of fine stone and coarse crushing stone is 1.5:8.5, and wherein, in rubble, the particle diameter of fine stone is 8mm, slightly
The particle diameter of rubble is 25mm.
Embodiment 3
A kind of self-compacting concrete, its raw material includes by weight: aluminum sulfate salt cement 100 parts, composite blend 46.5
Part, particle diameter is 90 parts of the pottery sand of 2mm, rubble 230 parts, compound additive 1.5 parts, 28 parts of water；
Wherein, the raw material of composite blend includes by weight: particle diameter is the limestone 32 parts of 0.7mm, and particle diameter is 0.3mm
14.5 parts of flyash；
The raw material of compound additive includes: naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, plasticizer, its
In, naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, the weight ratio of plasticizer are 1.2:0.1:0.5:0.1；
In rubble, the weight ratio of fine stone and coarse crushing stone is 2:8, and wherein, in rubble, the particle diameter of fine stone is 12mm, coarse crushing
The particle diameter of stone is 15mm.
Embodiment 4
A kind of self-compacting concrete, its raw material includes by weight: aluminum sulfate salt cement 100 parts, composite blend 41.5
Part, particle diameter is 110 parts of the pottery sand of 1mm, rubble 170 parts, compound additive 1.8 parts, 26 parts of water；
Wherein, the raw material of composite blend includes by weight: particle diameter is the limestone 28 parts of 0.9mm, and particle diameter is 0.5mm
13.5 parts of flyash；
The raw material of compound additive includes: naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, plasticizer, its
In, naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, the weight ratio of plasticizer are 1.15:0.12:0.4:0.12；
In rubble, the weight ratio of fine stone and coarse crushing stone is 1.8:8.2, and wherein, in rubble, the particle diameter of fine stone is 11mm,
The particle diameter of coarse crushing stone is 18mm.
Embodiment 5
A kind of self-compacting concrete, its raw material includes by weight: aluminum sulfate salt cement 100 parts, composite blend 44 parts,
Particle diameter is 100 parts of the pottery sand of 1.5mm, rubble 200 parts, compound additive 1.7 parts, 27 parts of water；
Wherein, the raw material of composite blend includes by weight: particle diameter is the limestone 30 parts of 0.8mm, and particle diameter is 0.4mm
14 parts of flyash；
The raw material of compound additive includes: naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, plasticizer, its
In, naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, the weight ratio of plasticizer are 1.1:0.13:0.3:0.15；
In rubble, the weight ratio of fine stone and coarse crushing stone is 1.6:8.4, and wherein, in rubble, the particle diameter of fine stone is 9mm, slightly
The particle diameter of rubble is 22mm.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (8)
1. a self-compacting concrete, it is characterised in that its raw material includes by weight: cement 100 parts, composite blend 38-
50 parts, sand 80-120 part of making pottery, rubble 150-250 part, compound additive 1.3-2.05 part, water 25-30 part；
Wherein, the raw material of composite blend includes by weight: limestone 25-35 part, flyash 13-15 part；
The raw material of compound additive includes: naphthalene series high-efficiency water-reducing agent, sodium gluconate, maltose cyclodextrin, plasticizer.
Self-compacting concrete the most according to claim 1, it is characterised in that cement is aluminum sulfate salt cement.
Self-compacting concrete the most according to claim 1 or claim 2, it is characterised in that in composite blend, the particle diameter of limestone is
0.7-0.9mm, the particle diameter of flyash is 0.3-0.5mm.
4. according to self-compacting concrete described in any one of claim 1-3, it is characterised in that the particle diameter of pottery sand is 1-2mm.
5. according to self-compacting concrete described in any one of claim 1-4, it is characterised in that naphthalene series high-efficiency water-reducing agent, glucose
Acid sodium, maltose cyclodextrin, the weight ratio of plasticizer are 1-1.2:0.1-0.15:0.1-0.5:0.1-0.2.
6. according to self-compacting concrete described in any one of claim 1-5, it is characterised in that naphthalene series high-efficiency water-reducing agent, glucose
Acid sodium, maltose cyclodextrin, the weight ratio of plasticizer are 1.1:0.13:0.3:0.15.
7. according to self-compacting concrete described in any one of claim 1-6, it is characterised in that fine stone and coarse crushing stone in rubble
Weight ratio is 1.5-2:8-8.5.
Self-compacting concrete the most according to claim 7, it is characterised in that in rubble, the particle diameter of fine stone is 8-12mm, slightly
The particle diameter of rubble is 15-25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610486985.2A CN106145834A (en) | 2016-06-28 | 2016-06-28 | A kind of self-compacting concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610486985.2A CN106145834A (en) | 2016-06-28 | 2016-06-28 | A kind of self-compacting concrete |
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| Publication Number | Publication Date |
|---|---|
| CN106145834A true CN106145834A (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610486985.2A Pending CN106145834A (en) | 2016-06-28 | 2016-06-28 | A kind of self-compacting concrete |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767962A (en) * | 2009-01-06 | 2010-07-07 | 上海罗洋新材料科技有限公司 | Pore canal grouting concrete for buildings |
| CN102951876A (en) * | 2011-08-17 | 2013-03-06 | 中冶天工上海十三冶建设有限公司 | Vibration-free self-compacting concrete composition |
| CN103803904A (en) * | 2013-12-30 | 2014-05-21 | 北京新航建材集团有限公司 | Self-compacting light aggregate concrete and preparation method thereof |
-
2016
- 2016-06-28 CN CN201610486985.2A patent/CN106145834A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767962A (en) * | 2009-01-06 | 2010-07-07 | 上海罗洋新材料科技有限公司 | Pore canal grouting concrete for buildings |
| CN102951876A (en) * | 2011-08-17 | 2013-03-06 | 中冶天工上海十三冶建设有限公司 | Vibration-free self-compacting concrete composition |
| CN103803904A (en) * | 2013-12-30 | 2014-05-21 | 北京新航建材集团有限公司 | Self-compacting light aggregate concrete and preparation method thereof |
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Application publication date: 20161123 |