CN106830835A - Using the frost-resistant concrete of steam curing process - Google Patents
Using the frost-resistant concrete of steam curing process Download PDFInfo
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- CN106830835A CN106830835A CN201710070572.0A CN201710070572A CN106830835A CN 106830835 A CN106830835 A CN 106830835A CN 201710070572 A CN201710070572 A CN 201710070572A CN 106830835 A CN106830835 A CN 106830835A
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- Prior art keywords
- concrete
- frost
- curing process
- steam curing
- water
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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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/29—Frost-thaw resistance
-
- 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
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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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 relates to a kind of frost-resistant concrete of use steam curing process, it is characterized in that：The freeze-thaw resistance coagulation local soil type being made by weight is divided into, cement 10~13, fine aggregate 29~32, coarse aggregate 43~48, slag powders 4~5, silicon ash 0~0.5, flyash 0~4, water reducer 0.2~0.4, air entraining agent 0~0.1, water 4.8~6.Beneficial effect：Improve the finished product speed of precast concrete；Freezing and thawing performance reaches more than F350；Avoid the generation of high-volume waster.Agent on crack resistance of concrete freeze thawing is higher obtained in the concrete formulation, low production cost, and intensity can meet engineering demand.
Description
Technical field
The invention belongs to concrete, more particularly to a kind of frost-resistant concrete of use steam curing process.
Background technology
Concrete frost resistance is the important technology index of coastal engineering concrete military service performance, is the micro- jelly of northern China, trembles with fear
The primary technological difficulties of cold and harsh climate Under Concrete endurance quality design.Concrete structure freeze-thaw damage causes structure
Top layer comes off, hydro-structure component inside Crack Extension and structural failure that internal stress destruction brings, not only increases structure
Safeguard, repair, reinforce financial cost, and have a strong impact on the service life of concrete construction engineering.
The main cause of concrete structure freeze-thaw damage have construction technology it is improper (such as template stop slurry effect it is poor, cement mortar stream
Lose；Duration tightly causes striking time too early；Concrete early strength is low, deforms during the demoulding) unreasonable (slump high makes cement to match ratio
Slurry is excessive, and concrete frost resistance is poor) etc..The main method for solving the above problems has：Modified technique (changes concrete vibrating mode；Using
Steam curing process；Improving early strength) design mixture proportion (uses low water binder ratio；Reduce the slump；Mix air entraining agent) etc..
Such as patent document 105314932A discloses a kind of impervious freeze proof C30 concrete formulations water, including water 175kg,
Cement 461kg, sand 511kg, stone 1252kg；After impervious freeze proof C30 concrete coagulations hardening, structure is closely knit, and porosity is low, by force
Degree is high, and is not likely to produce crack, with excellent impervious, freeze proof and durability.Patent document 103030351A discloses one
Plant concrete, it is characterised in that：By weight percentage, it is by the mixing of cement, middle sand, stone, glass fibre, water and air entraining agent
Into its weight portion composition is：Cement：421.5 parts；Middle sand：807.6 parts；Stone：989.20 parts；Water：198.46 parts；Glass fibers
Dimension：4 parts；Air entraining agent：1.12 parts.The concrete 's air-containing is the 5.5~6% of volume of concrete, patent document 103787628A
Disclose a kind of low-temperature high-early strength concrete formulating method for high and cold Permafrost Area tunnel, including low-temperature high-early strength concrete
Formula materials are selected, mix-design, stirred, are transported, pouring, form removal and maintenance, quality inspection and control；Wherein match ratio sets
It is calculated as：The ratio of mud：0.43-0.48；Cement consumption：360-400kg/m3；Sand coarse aggregate ratio：38-42%；Water consumption：165-180；It is compound
Early strength water-reducing agent volume：Account for cement mixing content 3%；- 15 DEG C, the amount of blended concrete antifreezing agent：Account for cement mixing content 3%.What the above method was present asks
Although topic is the concrete for preparing has preferable frost resistance, traditional standard curing technique is still relied on.Due to steam-cured
Technique can have negative effect, it is desirable to concrete while quick raising concrete strength to concrete antifreezing performance
Water-cement ratio, the slump, air content etc. are controlled in rational scope, therefore concrete mix in the above method and are not applied to
In steam curing process.
The content of the invention
It is an object of the invention to overcome the shortcomings of above-mentioned technology, and provide a kind of freeze proof coagulation of use steam curing process
Soil, the concrete match ratio steam curing process being made makes its freeze-thaw resistance higher, and intensity can meet engineering demand.
The present invention to achieve the above object, using following technical scheme：A kind of frost-resistant concrete of use steam curing process, its
It is characterized in：The freeze-thaw resistance coagulation local soil type being made by weight is divided into,
The freeze-thaw resistance concrete best composition is：By weight
The coarse aggregate 46.29 of 10.20 fine aggregate of cement 31.11
The flyash 2.53 of 4.26 silicon ash of slag powders 0.42
The water 4.93 of 0.24 air entraining agent of water reducer 0.03.
The cement is Portland cement, and strength grade is 42.5；SILICA FUME specific surface area >=20000 ㎡/㎏, two
Silica content >=94%；Miberal powder is S95 grades；Fine aggregate chooses river sand, and Ji Pei areas are IIth area, and fineness is middle sand；Coarse aggregate is selected
It is 5~25mm rubbles with particle diameter, grain composition is continuous size fraction, and nominal maximum aggregate size is 26.5mm.
The water reducer is high performance water reducing agent of polyocarboxy acid, water-reducing rate >=18%.
The air entraining agent is rosin entraining agent.
The water-cement ratio of the concrete is no more than 0.31.
Beneficial effect：Compared with prior art, using concrete prefabricated element of the present invention, effectively accelerate due to
The feedback speed that each side such as production, technology and environment influence on product, improves the finished product speed of product；Freezing and thawing performance reaches
To more than F350；Definitely contain that various unfavorable factor changes cause high-volume waster.Coagulation obtained in the concrete formulation
Native freeze-thaw resistance is higher, low production cost, and intensity can meet engineering demand.
Specific embodiment
Specific embodiment of the invention is described in detail with reference to preferred embodiment.
Embodiment 1
A kind of best composition of the frost-resistant concrete of use steam curing process, by every part of weight kg,
Cement 10.20kg fine aggregate 31.11kg coarse aggregates 46.29kg
Slag powders 4.26kg silicon ash 0.42kg flyash 2.53kg
Water reducer 0.24kg air entraining agent 0.03kg water 4.93kg.
Embodiment 2
A kind of component of the frost-resistant concrete of use steam curing process, by every part of weight kg,
Cement 10kg fine aggregate 29kg coarse aggregates 43kg
Slag powders 4.0kg silicon ash 0.3kg water reducers 0.2kg
Air entraining agent 0.03kg water 6kg.
Embodiment 3
A kind of component of the frost-resistant concrete of use steam curing process, by every part of weight kg,
Cement 13kg fine aggregate 32kg coarse aggregates 48kg
Slag powders 5kg water reducer 0.2kg air entraining agents 0.1kg
Water 4.8kg.
Embodiment 4
A kind of component of the frost-resistant concrete of use steam curing process, by every part of weight kg,
Cement 11.5kg fine aggregate 30kg coarse aggregates 44.8kg
Slag powders 4.23kg silicon ash 0.5kg flyash 4kg
Water reducer 0.2kg water 6kg.
The test data result of above-mentioned implementation method see the table below shown
1st, concrete performance
Four kinds of embodiments more than, binding tests effect can show that embodiment 1 is optimum formula.In working condition not
When can meet embodiment 1 and requiring, Production requirement can be also met using embodiment 2-4.
Above-mentioned cement is Portland cement, and strength grade is 42.5；SILICA FUME specific surface area >=20000 ㎡/㎏, two
Silica content >=94%；Miberal powder is S95 grades；Fine aggregate chooses river sand, and Ji Pei areas are IIth area, and fineness is middle sand；Coarse aggregate is selected
It is 5~25mm rubbles with particle diameter, grain composition is continuous size fraction, and nominal maximum aggregate size is 26.5mm；Its polycarboxylate water-reducer subtracts
Water rate >=18% is good with cement adaptability.The air entraining agent is rosin entraining agent.The water-cement ratio of the concrete is for no more than
0.31。
The maximum water-cement ratio of above-mentioned concrete is 0.29, and the slump is 50 ± 20mm.
Concrete crushing strength is detected：Prepare test specimen：Size is 150mm × 150mm × 150mm, and test specimen is placed in into pressure
Force tester lower platen center, with the continuously and uniformly loading of the speed of 0.3~0.5MPa/s.When test specimen starts to become close to damaged
During shape, Adjustment Tests machine oil door should be stopped, until test specimen is destroyed, then record failing load.Concrete cube test specimen resistance to compression
Intensity fcuCan be calculated by following formula：
fcu=P/A
P- failing loads (kN)
A- test specimen bearing areas (mm2)
Through overtesting, calculate this test specimen compression strength be 58.6MPa
Agent on crack resistance of concrete freeze thawing is detected：Prepare test specimen：Size is 100mm × 100mm × 400mm, and regulation is reached in test specimen
After curing age, taken out in Self-curing pond.Surface moisture is wiped, just starting weight is weighed, and measure initial dynamic modulus of elasticity.By test specimen
Load in the rubber lined test specimen bucket of bucket bottom and bucket wall, injection freeze thawing medium submergence test specimen top surface 20mm.Often experience 50 jellies
After melting circulation, dynamic modulus of elasticity and weight check are carried out to test specimen.After 350 Frozen-thawed cycleds are experienced, test specimen is with respect to dynamic elasticity
Modulus 93% (＞ 75%), rate of weight loss is 0.89% (＜ 5%), therefore freeze thawing resistance meets F350 standards.
The above-mentioned detailed description carried out to a kind of frost-resistant concrete of use steam curing process with reference to embodiment, is illustrative
Rather than limited, several embodiments can be included according to limited scope, therefore do not departing from totality structure of the invention
Changing and modifications under thinking, should belong within protection scope of the present invention.
Claims (6)
1. a kind of frost-resistant concrete of use steam curing process, it is characterized in that：The freeze-thaw resistance coagulation local soil type being made by weight
It is divided into,
2. the frost-resistant concrete of use steam curing process according to claim 1, it is characterized in that：The freeze-thaw resistance concrete
Best composition is：By weight
3. the frost-resistant concrete of use steam curing process according to claim 1 and 2, it is characterized in that：The cement is common
Portland cement, strength grade is 42.5；SILICA FUME specific surface area >=20000 ㎡/㎏, dioxide-containing silica >=94%；Miberal powder
It is S95 grades；Fine aggregate chooses river sand, and Ji Pei areas are IIth area, and fineness is middle sand；Coarse aggregate is 5~25mm rubbles from particle diameter,
With being continuous size fraction, nominal maximum aggregate size is 26.5mm to grade.
4. the frost-resistant concrete of use steam curing process according to claim 1 and 2, it is characterized in that：The water reducer is poly-
Carboxylic acid high-performance water reducing agent, water-reducing rate >=18%.
5. the frost-resistant concrete of use steam curing process according to claim 1 and 2, it is characterized in that：The air entraining agent is pine
Fragrant air entraining agent.
6. the frost-resistant concrete of use steam curing process according to claim 1, it is characterized in that：The water-cement ratio of the concrete
To be not more than 0.31.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710070572.0A CN106830835A (en) | 2017-02-09 | 2017-02-09 | Using the frost-resistant concrete of steam curing process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710070572.0A CN106830835A (en) | 2017-02-09 | 2017-02-09 | Using the frost-resistant concrete of steam curing process |
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| CN106830835A true CN106830835A (en) | 2017-06-13 |
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| CN201710070572.0A Pending CN106830835A (en) | 2017-02-09 | 2017-02-09 | Using the frost-resistant concrete of steam curing process |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108840608A (en) * | 2018-07-02 | 2018-11-20 | 深圳市东大洋建材有限公司 | A kind of frost-resistant concrete and preparation method thereof |
| CN110342882A (en) * | 2019-07-19 | 2019-10-18 | 河海大学 | A kind of concrete and preparation method thereof for low temperature environment |
| CN110509425A (en) * | 2019-08-27 | 2019-11-29 | 广东粤腾建设有限公司 | A kind of concrete prefabricated wallboard and its production technology |
| CN112062520A (en) * | 2020-09-08 | 2020-12-11 | 天津市堃淏混凝土有限公司 | Antifreezing concrete composition and preparation method thereof |
| CN112110693A (en) * | 2020-08-27 | 2020-12-22 | 中国水电建设集团十五工程局有限公司 | Anti-freezing concrete suitable for alpine and high-altitude areas |
| CN112897952A (en) * | 2021-03-03 | 2021-06-04 | 曙光装配式建筑科技（浙江）有限公司 | Anti-freezing concrete member and production process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103641398A (en) * | 2013-11-21 | 2014-03-19 | 江苏东浦管桩有限公司 | Oxygen steaming-free high-strength concrete anticorrosive pipe pile and production method thereof |
| CN103848603A (en) * | 2014-02-25 | 2014-06-11 | 安徽省皖北煤电集团有限责任公司含山恒泰非金属材料分公司 | Non-autoclave primary health care (PHC) pipe pile concrete containing early strength composite mineral material and preparation method thereof |
| CN106007530A (en) * | 2016-05-25 | 2016-10-12 | 句容联众科技开发有限公司 | Frost-resistant concrete |
-
2017
- 2017-02-09 CN CN201710070572.0A patent/CN106830835A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103641398A (en) * | 2013-11-21 | 2014-03-19 | 江苏东浦管桩有限公司 | Oxygen steaming-free high-strength concrete anticorrosive pipe pile and production method thereof |
| CN103848603A (en) * | 2014-02-25 | 2014-06-11 | 安徽省皖北煤电集团有限责任公司含山恒泰非金属材料分公司 | Non-autoclave primary health care (PHC) pipe pile concrete containing early strength composite mineral material and preparation method thereof |
| CN106007530A (en) * | 2016-05-25 | 2016-10-12 | 句容联众科技开发有限公司 | Frost-resistant concrete |
Non-Patent Citations (2)
| Title |
|---|
| 刘宝举等: "蒸养超细粉煤灰混凝土的强度与耐久性", 《建筑材料学报》 * |
| 石中林: "《建筑材料检测》", 28 February 2013, 武汉：华中科技大学出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108840608A (en) * | 2018-07-02 | 2018-11-20 | 深圳市东大洋建材有限公司 | A kind of frost-resistant concrete and preparation method thereof |
| CN108840608B (en) * | 2018-07-02 | 2021-04-02 | 深圳市东大洋建材有限公司 | Anti-freezing concrete and preparation method thereof |
| CN110342882A (en) * | 2019-07-19 | 2019-10-18 | 河海大学 | A kind of concrete and preparation method thereof for low temperature environment |
| CN110509425A (en) * | 2019-08-27 | 2019-11-29 | 广东粤腾建设有限公司 | A kind of concrete prefabricated wallboard and its production technology |
| CN110509425B (en) * | 2019-08-27 | 2020-09-11 | 广东粤腾建设有限公司 | Concrete prefabricated wallboard and production process thereof |
| CN112110693A (en) * | 2020-08-27 | 2020-12-22 | 中国水电建设集团十五工程局有限公司 | Anti-freezing concrete suitable for alpine and high-altitude areas |
| CN112062520A (en) * | 2020-09-08 | 2020-12-11 | 天津市堃淏混凝土有限公司 | Antifreezing concrete composition and preparation method thereof |
| CN112897952A (en) * | 2021-03-03 | 2021-06-04 | 曙光装配式建筑科技（浙江）有限公司 | Anti-freezing concrete member and production process thereof |
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Application publication date: 20170613 |