CN110606705A - High flow state fair-faced concrete - Google Patents
High flow state fair-faced concrete Download PDFInfo
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- CN110606705A CN110606705A CN201911043869.3A CN201911043869A CN110606705A CN 110606705 A CN110606705 A CN 110606705A CN 201911043869 A CN201911043869 A CN 201911043869A CN 110606705 A CN110606705 A CN 110606705A
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- Prior art keywords
- fair
- faced concrete
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- flow
- faced
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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
-
- 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 relates to high-flow-state fair-faced concrete which comprises the following components: 150-165kg/m water3(ii) a Cement 350-3(ii) a 700-780kg/m sand3(ii) a Stone 990 and 1065kg/m3(ii) a 40-50kg/m of fly ash3(ii) a Slag powder 98-115kg/m3(ii) a And 6.3-8.8kg/m of additive3. The invention effectively solves the problems that the fair-faced concrete is expensive and not easy to obtain, and the construction cost and the construction difficulty are reduced by replacing the fair-faced concrete with the similar fair-faced concrete which has high fluidity, stable wall and high steel bar clearance trafficability.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to high-flow-state fair-faced concrete.
Background
At present, concrete structure decoration integrated engineering is more and more widely applied, and in the concrete structure decoration integrated engineering with super large, special-shaped and multi-curved surfaces, as the main reinforcement of the structure has multiple curvature changes, the section stirrups are dense, the lacing wire arrangement distance is tight, clear water concrete with good fluidity is generally required to be used for pouring, but at present, more domestic mixing stations cannot be prepared due to technical problems, so that the cost is high, the concrete is not easy to obtain, and the construction cost and the construction difficulty are increased.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides the high-flow-state fair-faced concrete, solves the problems that the fair-faced concrete is expensive and is not easy to obtain, and reduces the construction cost and the construction difficulty by replacing the fair-faced concrete with the class fair-faced concrete which has high fluidity, stable walls and high steel bar clearance trafficability.
The technical scheme for realizing the purpose is as follows:
the invention provides high-flow-state fair-faced concrete which comprises the following components:
150-165kg/m water3；
Cement 350-3；
700-780kg/m sand3；
Stone 990 and 1065kg/m3；
40-50kg/m of fly ash3；
Slag powder 98-115kg/m3(ii) a And
6.3-8.8kg/m of additive3。
The invention adopts high-flow type fair-faced concrete, forms the high-flow type fair-faced concrete by improving the proportion of the concrete, forms the good-performance type fair-faced concrete with steel bar clearance passage by mixing easily obtained raw materials, improves the fluidity of the type fair-faced concrete by increasing the proportion of additives, and adopts stones with smaller particle sizes to ensure that the steel bar clearance passage performance of the type fair-faced concrete is better, thereby solving the problems that the fair-faced concrete is expensive and is not easy to obtain.
The invention further improves the high-flow-state fair-faced concrete, which comprises the following components in percentage by weight:
156kg/m water3；
Cement 350kg/m3；
715kg/m of sand3；
1011kg/m stone3；
42kg/m of fly ash3；
Slag powder 110kg/m3(ii) a And
additive 8.3kg/m3。
The invention further improves the high-flow-state fair-faced concrete in that the additive is a polycarboxylic acid water reducing agent.
The invention further improves the high-flow-state fair-faced concrete in that the fly ash is class II fly ash.
The invention further improves the high-flow-state fair-faced concrete, and the slag powder is S95-grade slag powder.
The invention further improves the high-flow-state fair-faced concrete in that the sand is medium sand.
The invention further improves the high-flow-state fair-faced concrete, and the particle size of the stones is 5-20 mm.
Detailed Description
The present invention will be further described with reference to the following specific examples.
The invention provides high-flow type fair-faced concrete, which is formed by improving the proportion of concrete, adopts easily obtained raw materials to mix to form the fair-faced concrete with good reinforcement gap passage performance, improves the fluidity of the fair-faced concrete by increasing the proportion of additives, adopts stones with smaller particle sizes to ensure that the reinforcement gap passage performance of the fair-faced concrete is better, solves the problems that the fair-faced concrete is expensive and is not easy to obtain, and reduces the construction cost and the construction difficulty by replacing the fair-faced concrete with the high-fluidity, stable wall and high reinforcement gap passage performance. The high flow state fair-faced concrete of the present invention will be explained below.
The invention relates to high-flow-state fair-faced concrete which comprises the following components:
150-165kg/m water3；
Cement 350-3；
700-780kg/m sand3；
Stone 990 and 1065kg/m3；
40-50kg/m of fly ash3；
Slag powder 98-115kg/m3(ii) a And
6.3-8.8kg/m of additive3。
As a preferred embodiment of the present invention, the concrete components of the high-flow-state fair-faced concrete include:
156kg/m water3(ii) a Cement 350kg/m3(ii) a 715kg/m of sand3(ii) a 1011kg/m stone3(ii) a 42kg/m of fly ash3(ii) a Slag powder 110kg/m3(ii) a And 8.3kg/m of additive3。
Furthermore, the additive is a polycarboxylic acid water reducing agent, and the fluidity of the fair-faced concrete can be improved by increasing the using amount of the additive.
Preferably, the polycarboxylate water reducer can adopt HB-V Vippon polycarboxylate.
Specifically, the fly ash is grade II fly ash.
Specifically, the slag powder is S95 grade slag powder.
Preferably, the sand is medium sand.
Preferably, the particle size of the stones is 5-20mm, and the stones with smaller particle sizes are adopted, so that the gap passing performance of the reinforcing steel bars of the similar clear water concrete is better.
The specific implementation mode of the high-flow-state fair-faced concrete is as follows:
adding 156kg/m of water3Cement 350kg/m3715kg/m of sand31011kg/m stone342kg/m of fly ash3Slag powder 110kg/m3And 8.3kg/m of additive3Uniformly stirring to form high-flow-state fair-faced concrete;
through the laboratory concrete trial-matching work and the field sample plate section construction work, the final fair-faced concrete can reach the grade C45, the slump is controlled to be 200 +/-20, and the slump expansion is controlled to be 500-550, so that the requirements on strength and fluidity are met.
The present invention has been described in detail with reference to the embodiments, and various modifications thereof can be made by those skilled in the art based on the above description. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (7)
1. The high-flow-state clear water concrete is characterized by comprising the following components:
150-165kg/m water3；
Cement 350-3；
700-780kg/m sand3；
Stone 990 and 1065kg/m3；
40-50kg/m of fly ash3；
Slag powder 98-115kg/m3(ii) a And
6.3-8.8kg/m of additive3。
2. The high fluid fair-faced concrete of claim 1, wherein the high fluid fair-faced concrete comprises:
156kg/m water3；
Cement 350kg/m3；
715kg/m of sand3；
1011kg/m stone3；
42kg/m of fly ash3；
Slag powder 110kg/m3(ii) a And
additive 8.3kg/m3。
3. The high flow as dry concrete according to claim 1, wherein the admixture is a polycarboxylic acid water reducing agent.
4. The high flow as fair-faced concrete of claim 1, wherein the fly ash is class ii fly ash.
5. The high flow as dry concrete as claimed in claim 1, wherein the slag powder is grade S95 slag powder.
6. The high flow fair-faced concrete of claim 1, wherein the sand is medium sand.
7. The high flow as fair-faced concrete of claim 1, wherein the pebbles have a particle size of 5 to 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911043869.3A CN110606705A (en) | 2019-10-30 | 2019-10-30 | High flow state fair-faced concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911043869.3A CN110606705A (en) | 2019-10-30 | 2019-10-30 | High flow state fair-faced concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110606705A true CN110606705A (en) | 2019-12-24 |
Family
ID=68895552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911043869.3A Pending CN110606705A (en) | 2019-10-30 | 2019-10-30 | High flow state fair-faced concrete |
Country Status (1)
| Country | Link |
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| CN (1) | CN110606705A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960771A (en) * | 2020-08-25 | 2020-11-20 | 中建八局第四建设有限公司 | Self-compacting fair-faced concrete |
| CN112341089A (en) * | 2020-11-13 | 2021-02-09 | 上海宝冶集团有限公司 | Method for designing mix proportion of bare concrete of load-bearing structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999404A (en) * | 2007-01-15 | 2007-07-18 | 北京浩然混凝土有限公司 | Clean water autodensing concrete almixture |
| CN103011637A (en) * | 2013-01-05 | 2013-04-03 | 中交四航工程研究院有限公司 | Bare concrete binding material and corrosion-resistant bare concrete utilizing same |
| CN103304206A (en) * | 2013-06-28 | 2013-09-18 | 深圳大学 | Ultrahigh-strength self-compacting concrete and preparation method thereof |
| KR101708214B1 (en) * | 2016-10-13 | 2017-02-21 | 주식회사 하나레미콘 | Eco-friendly Composition of Red-Mixed Concrete and Manufacturing Method thereof |
| CN107459308A (en) * | 2017-09-11 | 2017-12-12 | 中国人民解放军63926部队 | A kind of anti-isolation self-compacting concrete of upper flow regime |
-
2019
- 2019-10-30 CN CN201911043869.3A patent/CN110606705A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999404A (en) * | 2007-01-15 | 2007-07-18 | 北京浩然混凝土有限公司 | Clean water autodensing concrete almixture |
| CN103011637A (en) * | 2013-01-05 | 2013-04-03 | 中交四航工程研究院有限公司 | Bare concrete binding material and corrosion-resistant bare concrete utilizing same |
| CN103304206A (en) * | 2013-06-28 | 2013-09-18 | 深圳大学 | Ultrahigh-strength self-compacting concrete and preparation method thereof |
| KR101708214B1 (en) * | 2016-10-13 | 2017-02-21 | 주식회사 하나레미콘 | Eco-friendly Composition of Red-Mixed Concrete and Manufacturing Method thereof |
| CN107459308A (en) * | 2017-09-11 | 2017-12-12 | 中国人民解放军63926部队 | A kind of anti-isolation self-compacting concrete of upper flow regime |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960771A (en) * | 2020-08-25 | 2020-11-20 | 中建八局第四建设有限公司 | Self-compacting fair-faced concrete |
| CN112341089A (en) * | 2020-11-13 | 2021-02-09 | 上海宝冶集团有限公司 | Method for designing mix proportion of bare concrete of load-bearing structure |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191224 |
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| RJ01 | Rejection of invention patent application after publication |