CN108658547A - Self-compacting concrete - Google Patents
Self-compacting concrete Download PDFInfo
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- CN108658547A CN108658547A CN201810900653.3A CN201810900653A CN108658547A CN 108658547 A CN108658547 A CN 108658547A CN 201810900653 A CN201810900653 A CN 201810900653A CN 108658547 A CN108658547 A CN 108658547A
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- mass parts
- self
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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
- C04B28/04—Portland 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 present invention provides a kind of self-compacting concretes, including：The cement of 100 mass parts；The miberal powder of 20~40 mass parts；The sand of 140~150 mass parts；The rubble of 150~180 mass parts；1~5 mass parts additive；With the water of 30~50 mass parts；Wherein, it is 1 that the additive, which includes mass ratio,:0.001~0.005:0.05~0.25 water-reducing agent, antifoaming agent and reinforcing agent；The sewage that the water is detached by sand-stone separator obtains after precipitation, solid content≤3% of the water.The experimental results showed that the actual measurement slump divergence 700mm of self-compacting concrete provided by the invention, concrete is in good condition, not bleeding, not stratified, and bubble is few, and 28 days concrete strengths improve 10% than tradition proportioning, have self-compacting concrete all standard completely.
Description
Technical field
The invention belongs to technical field of concrete more particularly to a kind of self-compacting concretes.
Background technology
Concrete is that the general designation of the cementing integral engineered composite material of aggregate is widely used in building by cementitious material
Engineering.This self-compacting concrete, be widely used in concrete wall heat preservation outside it is secondary pour and arrangement of reinforcement is closeer can not
The position vibrated.
Self-compacting concrete refers to again that can flow under self gravitation effect, is closely knit, can be complete there is fine and close reinforcing bar
Full packing template, while fine homogenieity is obtained, and the concrete of vibrations need not be added.The main material cement of concrete
Belong to high energy consumption industry, needs to consume a large amount of raw coal during burning clinker of cement, and generate a large amount of dust and pernicious gas, therefore
Cost is higher.
Invention content
In view of this, the purpose of the present invention is to provide a kind of self-compacting concrete, on the basis of reduction cement usage amount
Self-compacting ability is preferable.
The present invention provides a kind of self-compacting concretes, including：
The cement of 100 mass parts；
The miberal powder of 20~40 mass parts；
The sand of 140~150 mass parts；
The rubble of 150~180 mass parts；
1~5 mass parts additive；
With the water of 30~50 mass parts；
Wherein, it is 1 that the additive, which includes mass ratio,:0.001~0.005:0.05~0.25 water-reducing agent, antifoaming agent and
Reinforcing agent；
The sewage that the water is detached by sand-stone separator obtains after precipitation, solid content≤3% of the water.
The sewage of the sewage that the present invention is detached using sand-stone separator after precipitation as raw material, cooperation water-reducing agent, antifoaming agent and
Self-compacting concrete is prepared in reinforcing agent.The self-compacting concrete is suitable for industrial building, overlarge area facility floor, superelevation
The special close and shear wall of layer, reinforcing bar adds thermal insulation board integration the architectural engineering of requirements such as to pour, and exempts from shake after pouring, intensity reaches
100% or more, and concrete is in good condition, slump divergence 650mm or more, has high fluidity, high-moisture-retention, high compact etc.
Feature.
In one embodiment of the invention, the self-compacting concrete includes：
The cement of 100 mass parts；
The miberal powder of 33 mass parts；
The sand of 145 mass parts；
The rubble of 177 mass parts；
The additive of 2 mass parts；
With the water of 42 mass parts.
In self-compacting concrete provided by the invention, the additive includes that mass ratio is 1:0.0025:0.175 subtracts
Aqua, antifoaming agent and reinforcing agent.
In one embodiment, the water-reducing agent selects high performance water reducing agent of polyocarboxy acid.
In one embodiment, the antifoaming agent is selected from organic silicon defoamer.The present invention does not have the organic silicon defoamer
There are particular determination, market purchase.
In one embodiment, the reinforcing agent is selected from organic surfactant reinforcing agent.The present invention is to organic surface
Active reinforcing agent is not particularly limited, market purchase.
The sewage that the water of self-compacting concrete disclosed by the invention is detached by sand-stone separator obtains after precipitation, described
Solid content≤3% of water.
In one embodiment, the sewage that the water is detached by sand-stone separator obtains after three-level precipitates.
In one embodiment, the cement is selected from Portland cement P.O42.5.
In one embodiment, S95 grades of the model of the miberal powder.
In one embodiment, sand in IIth areas the Sha Wei.
It, should be in 3h using finishing according to the self-compacting concrete that formula provided by the invention is prepared.It keeps in use
At the uniform velocity 4~6 revs/min of tank car prevents concrete isolation, lamination.It should be cleaned up before being poured using position, form for seal is tight
It is close, mortar leakage prevention.After self-compacting concrete pours, conserves at least 14 days, prevent concrete from cracking.
The present invention change over production self-compacting concrete conventional method, improve raw material, detached using sand-stone separator
Sand, stone and the sewage gone out is configured, this is made full use of containing beneficials, the present invention such as powder, additives in production waste
A little compositions, reasonably optimizing make refuse reclamation.30 kilograms of cement is saved per side's concrete, sandstone recycles, and reduces admixture dosage
Deng, make concrete overall cost reduce by 20%.This has not only adapted to current national green and has produced, the big situation preserved the ecological environment, and
And concrete company realizes waste cycling and reutilization, reaches no pollution, zero-emission, both saves resource, and economy is created for company
Benefit, and create social benefit.Under the situation of current resource increasingly depleted, it is worth promoting.The experimental results showed that this
The actual measurement slump divergence 700mm of the self-compacting concrete provided is invented, concrete is in good condition, not bleeding, not stratified, bubble pole
Few, 28 days concrete strengths improve 10% than tradition proportioning, have self-compacting concrete all standard completely.
Specific implementation mode
Embodiment 1
Concrete mix：
Cement：Miberal powder：Water：Additive：Sand：The mass ratio of stone is：100：30：40：3：145：170.
Wherein, the model P.O42.5 of the cement；The model S95 of the miberal powder；IIth area of model of the sand
Middle sand；The additive is mass ratio 1:0.0025:0.175 high performance water reducing agent of polyocarboxy acid, organic silicon defoamer and organic
Surface-active reinforcing agent, organic silicon defoamer is purchased from middle federal organic silicon defoamer, and organic surfactant reinforcing agent is purchased from holy flourish
Construction material Co., Ltd；The water is that the sewage that sand-stone separator generates precipitates acquisition, solid content≤3% through three-level.
Preparation method：
Cement, sand, stone, water, miberal powder and additive are stirred, self-compacting concrete is obtained.
The self-compacting concrete surveys slump divergence 600mm, and concrete is in good condition, not bleeding, not stratified, and bubble is few,
28 days concrete strengths improve 10% than tradition proportioning, and concrete has self-compacting concrete all standard completely.
Embodiment 2
Concrete mix：
Cement：Miberal powder：Water：Additive：Sand：The mass ratio of stone is：100：35：42：4：140：160.
Wherein, the model P.O42.5 of the cement；The model S95 of the miberal powder；IIth area of model of the sand
Middle sand；The additive is mass ratio 1:0.0025:0.175 high performance water reducing agent of polyocarboxy acid, organic silicon defoamer and organic
Surface-active reinforcing agent, organic silicon defoamer is purchased from middle federal organic silicon defoamer, and organic surfactant reinforcing agent is purchased from holy flourish
Construction material Co., Ltd；The water is that the sewage that sand-stone separator generates precipitates acquisition, solid content≤3% through three-level.
Preparation method：
Cement, sand, stone, water, miberal powder and additive are stirred, self-compacting concrete is obtained.
The self-compacting concrete surveys slump divergence 700mm, and concrete is in good condition, not bleeding, not stratified, and bubble is few,
28 days concrete strengths improve 15% than tradition proportioning, and concrete has self-compacting concrete all standard completely.
Embodiment 3
Concrete mix：
Cement：Miberal powder：Water：Additive：Sand：The mass ratio of stone is：100：25：45：5：142：175.
Wherein, the model P.O42.5 of the cement；The model S95 of the miberal powder；IIth area of model of the sand
Middle sand；The additive is mass ratio 1:0.0025:0.175 high performance water reducing agent of polyocarboxy acid, organic silicon defoamer and organic
Surface-active reinforcing agent, organic silicon defoamer is purchased from middle federal organic silicon defoamer, and organic surfactant reinforcing agent is purchased from holy flourish
Construction material Co., Ltd；The water is that the sewage that sand-stone separator generates precipitates acquisition, solid content≤3% through three-level.
Preparation method：
Cement, sand, stone, water, miberal powder and additive are stirred, self-compacting concrete is obtained.
The self-compacting concrete surveys slump divergence 650mm, and concrete is in good condition, not bleeding, not stratified, and bubble is few,
28 days concrete strengths improve 12% than tradition proportioning, and concrete has self-compacting concrete all standard completely.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of self-compacting concrete, including：
The cement of 100 mass parts；
The miberal powder of 20~40 mass parts；
The sand of 140~150 mass parts；
The rubble of 150~180 mass parts；
1~5 mass parts additive；
With the water of 30~50 mass parts；
Wherein, it is 1 that the additive, which includes mass ratio,:0.001~0.005:0.05~0.25 water-reducing agent, antifoaming agent and enhancing
Agent；
The sewage that the water is detached by sand-stone separator obtains after precipitation, solid content≤3% of the water.
2. self-compacting concrete according to claim 1, which is characterized in that the additive includes that mass ratio is 1:
0.0025:0.175 water-reducing agent, antifoaming agent and reinforcing agent.
3. self-compacting concrete according to claim 1, which is characterized in that the water-reducing agent subtracts selected from poly-carboxylic high-performance
Aqua.
4. self-compacting concrete according to claim 1, which is characterized in that the antifoaming agent is selected from organic silicon defoamer.
5. self-compacting concrete according to claim 1, which is characterized in that the reinforcing agent increases selected from organic surfactant
Strong agent.
6. according to the self-compacting concrete described in Claims 1 to 5 any one, which is characterized in that the water is detached by sandstone
The sewage of machine separation obtains after three-level precipitates.
7. according to the self-compacting concrete described in Claims 1 to 5 any one, which is characterized in that the cement is selected from common
Portland cement P.O42.5.
8. according to the self-compacting concrete described in Claims 1 to 5 any one, which is characterized in that the model of the miberal powder
S95 grades.
9. according to the self-compacting concrete described in Claims 1 to 5 any one, which is characterized in that sand in IIth areas the Sha Wei.
10. according to the self-compacting concrete described in Claims 1 to 5 any one, which is characterized in that including：
The cement of 100 mass parts；
The miberal powder of 33 mass parts；
The sand of 145 mass parts；
The rubble of 177 mass parts；
2 mass parts additives；
With the water of 42 mass parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810900653.3A CN108658547A (en) | 2018-08-09 | 2018-08-09 | Self-compacting concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810900653.3A CN108658547A (en) | 2018-08-09 | 2018-08-09 | Self-compacting concrete |
Publications (1)
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| CN108658547A true CN108658547A (en) | 2018-10-16 |
Family
ID=63788816
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810900653.3A Pending CN108658547A (en) | 2018-08-09 | 2018-08-09 | Self-compacting concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112645621A (en) * | 2020-12-23 | 2021-04-13 | 新疆荣高鸿俊新材料技术有限公司 | Inorganic reinforced admixture, concrete and application thereof |
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| CN105776994A (en) * | 2016-02-03 | 2016-07-20 | 绍兴文理学院 | Self-compacting concrete prepared from concrete mixing station waste slurry |
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| CN103159443A (en) * | 2013-03-14 | 2013-06-19 | 中建商品混凝土有限公司 | Ultrahigh-strength concrete and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112645621A (en) * | 2020-12-23 | 2021-04-13 | 新疆荣高鸿俊新材料技术有限公司 | Inorganic reinforced admixture, concrete and application thereof |
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Application publication date: 20181016 |