CN106242437A - A kind of prestressed high-strength concrete pile of non-evaporating pressure and preparation method thereof - Google Patents
A kind of prestressed high-strength concrete pile of non-evaporating pressure and preparation method thereof Download PDFInfo
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- CN106242437A CN106242437A CN201610763936.9A CN201610763936A CN106242437A CN 106242437 A CN106242437 A CN 106242437A CN 201610763936 A CN201610763936 A CN 201610763936A CN 106242437 A CN106242437 A CN 106242437A
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- concrete
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/58—Prestressed concrete piles
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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
- 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
Abstract
The invention discloses prestressed high-strength concrete pile of a kind of non-evaporating pressure and preparation method thereof, this concrete comprises Binder Materials, high-efficiency water-reducing agent of poly-carboxylic acid and coarse-fine aggregate and water；Wherein, Binder Materials is made up of cement and breeze, accounts for the 15～20% of concrete gross mass, and high-efficiency water-reducing agent of poly-carboxylic acid water-reducing rate is higher than 25%, accounts for the 0.2 ~ 0.5% of concrete gross mass；Coarse-fine aggregate includes coarse aggregate and fine aggregate, and coarse aggregate is 5 ~ 25mm continuous grading granite stones, accounts for the 45 ~ 55% of concrete gross mass；Fine aggregate is the nickel minerals slag sand of modulus of fineness 2.5 ~ 3.2, accounts for the 25 ~ 30% of concrete gross mass, and water accounts for the 5.0～6.0% of concrete gross mass.The PHC comprcssive strength that the present invention prepares is more than 85MPa, and presentation quality, dimensional discrepancy and mechanical property etc. all meet country's pile tube standard-required.
Description
Technical field
The present invention relates to a kind of non-evaporating pressure prestressed high-strength concrete pile (PHC) technology, in particular with nickel minerals slag
Non-evaporating pressure prestressed high-strength concrete pile prepared by sand and method thereof.
Background technology
Along with economic development, living standard quality constantly improves, and protection of resources consciousness constantly strengthens, right
Living environment demand is gradually increased, in recent years conservation of nature environment, optimizing network resource utilization, seek the sustainable of harmony between man and nature
Idea of development key subjects, it has been suggested that come, the need that the later development condition of building industry necessarily protects environment to meet the mankind
Ask, the research and development most effective and minimum consumption resource of energy the technology can coordinated mutually with ecological environment, selection resource-conserving,
Pollute low profile, quality and efficiency and the development pattern of science type pilot, walk sustainable development path, be historical development must
So.
First Binder Materials and coarse-fine aggregate are being mixed at blender during tradition prestressed concrete high-strength pipe pile produces at present
Close stirring, carry out atmospheric steam curing carry out steam pressure again through concrete formation centrifuging process, employing atmospheric steam curing technique
Maintenance forms tobermorite crystalline solid and reaches C80 requirement of strength, and traditional mode of production prestressed high-strength concrete pile exists to be needed
The problem solved:
1, tradition steam press maintenance coal consumption too high air pollution is big, the every mitron stake of high pressure steam press maintenance need to consume 3 kilogram 5000 big
Card standard fire coal produces 7.5 kilograms of carbon dioxide；
2, tradition steam press maintenance high-pressure bottle uses dangerous, and tube pile high-pressure steam press maintenance has operator safety accident casualty to send out
Raw；
3, traditional natural resource coarse-fine aggregate sandstone always has that time exploited；
4, traditional mode of production high-strength prestressed concrete pipe pile needs high-quality coarse-fine aggregate and Binder Materials, high-quality resource always to have
That time exploited.
Summary of the invention
The present invention is to overcome the deficiencies in the prior art, it is provided that a kind of non-evaporating pressure PHC prestressed high-strength concrete pile technology,
This technology produces PHC prestressed high-strength concrete pile only with atmospheric steam curing and natural conditions maintenance, it is not necessary to high pressure
Steam press maintenance reaches the design requirement of PHC prestressed high-strength concrete pile, not only reduces production cost, protects environment, also
Appropriate application industrial slag mine tailing, also improves prestressed high-strength concrete pile combination property simultaneously.
The present invention solves prior art problem employing technical scheme:
A kind of prestressed high-strength concrete pile of non-evaporating pressure, this concrete comprise Binder Materials, high-efficiency water-reducing agent of poly-carboxylic acid and
Coarse-fine aggregate and water.Wherein, Binder Materials is made up of cement and breeze, accounts for the 15～20% of concrete gross mass, and polycarboxylic acids is efficient
Water reducer water-reducing rate is higher than 25%, accounts for the 0.2 ~ 0.5% of concrete gross mass；Coarse-fine aggregate includes coarse aggregate and fine aggregate, thick bone
Material is 5 ~ 25mm continuous grading granite stones, accounts for the 45 ~ 55% of concrete gross mass；Fine aggregate is modulus of fineness 2.5 ~ 3.2
Nickel minerals slag sand, accounts for the 25 ~ 30% of concrete gross mass, and water accounts for the 5.0～6.0% of concrete gross mass.
Further, in Binder Materials, cement and breeze respectively account for the 60～80% and 20～40% of Binder Materials quality.
Further, the cement that the present invention uses is Portland cement or portland cement.
Further, the breeze that the present invention uses is S95 level breeze.
Further, the crush values of coarse aggregate that the present invention uses is 8%, elongated particles is 4%, clay content is 0.8%.
Further, the nickel minerals slag sand that the present invention uses is to be by machined for the nickel minerals slag modulus of fineness that reaches
2.7。
The prestressed concrete high-strength pipe pile of non-evaporating pressure of the present invention uses following steps to prepare: take gelling in proportion
Material, high-efficiency water-reducing agent of poly-carboxylic acid and coarse-fine aggregate and water mix in blender is uniform, through concrete formation centrifugal forming,
Stand, atmospheric steam curing more than 6 hours under conditions of curing temperature is 80 ± 5 DEG C, the most naturally support
Protect 7 days and i.e. obtain described concrete high-strength pile tube.
Compared with prior art, the invention have the advantage that
1. the concrete high-strength pile tube comprcssive strength that prepared by the present invention is more than 85MPa, presentation quality, dimensional discrepancy and mechanical property
Deng all meeting country's pile tube standard-required；
2. the present invention utilizes nickel minerals slag sand to prepare non-evaporating pressure prestressed high-strength concrete pile, reduces production cost, simultaneously
Also environment is protected, Appropriate application industrial slag mine tailing.
3. provide necessary guarantee for pile tube enterprise safety operation, it is to avoid the generation of still kettle security incident.
Detailed description of the invention
Embodiment 1:
Take 94 kilograms of breezes and 374 kilograms of cement are combined into Binder Materials, then take 10 kilograms of water reducers, 650 kilograms of nickel minerals slags
Sand and 1320 kilograms of rubbles, 142 kg of water, each component accounts for concrete sum-rate and is: breeze 3.63%, cement 14.44%, diminishing
Agent 0.39%, nickel minerals sand 25.10%, rubble 50.97%, water 5.48%, uniformly stir in feeding is put into blender by continuous data
With, through concrete formation centrifugal forming, stand 1.5 hours, atmospheric steam curing under conditions of curing temperature is 80 ± 5 DEG C
6 hours, the design requirement of PHC high-strength concrete tubular pile within 7 days, can be reached subsequently into the maintenance under field conditions (factors) of place, stockyard.
Embodiment 2:
Take 141 kilograms of breezes and 329 kilograms of cement are combined into Binder Materials, then take 10 kilograms of water reducers, 670 kilograms of nickel minerals slags
Sand and 1300 kilograms of rubbles, 140 kg of water, each component accounts for concrete sum-rate and is: breeze 5.44%, cement 12.70%, diminishing
Agent 0.39%, nickel minerals sand 25.87%, rubble 50.19%, water 5.40%, uniformly stir in feeding is put into blender by continuous data
With, through concrete formation centrifugal forming, stand 1.5 hours, atmospheric steam curing under conditions of curing temperature is 80 ± 5 DEG C
6 hours, the design requirement of PHC high-strength concrete tubular pile within 7 days, can be reached subsequently into the maintenance under field conditions (factors) of place, stockyard.
Embodiment 3:
Take 188 kilograms of breezes and 282 kilograms of cement are combined into Binder Materials, then take 10 kilograms of water reducers, 709 kilograms of nickel minerals slags
Sand and 1261 kilograms of rubbles, 140 kg of water, each component accounts for concrete sum-rate and is: breeze 7.25%, cement 10.91%, subtract
Water preparation 0.39%, nickel minerals sand 27.30%, rubble 48.61%, water 5.40% uniformly stir in feeding is put into blender by continuous data
With, through concrete formation centrifugal forming, stand 1.5 hours, atmospheric steam curing under conditions of curing temperature is 80 ± 5 DEG C
6 hours, within 7 days, setting of PHC prestressed high-strength concrete pile can be reached subsequently into the maintenance under field conditions (factors) of place, stockyard
Meter requirement.
The PHC comprcssive strength that above-described embodiment 1-3 prepares is more than 85MPa, presentation quality, dimensional discrepancy and mechanical property etc.
All meet country's pile tube standard-required.
Comparative example:
Take 188 kilograms of breezes and 282 kilograms of cement be combined into Binder Materials, then take 10 kilograms of water reducers, 709 kilograms of yellow ground and
1261 kilograms of rubbles, 140 kg of water, each component accounts for concrete sum-rate and is: breeze 7.25%, cement 10.91%, water reducer
0.39%, yellow ground 27.30%, rubble 48.61%, water 5.50%, uniformly mix in feeding is put into blender by continuous data, warp
Crossing concrete formation centrifugal forming, stand 1.5 hours, under conditions of curing temperature is 80 ± 5 DEG C, atmospheric steam curing 6 is little
Time, the design that can reach PHC prestressed high-strength concrete pile subsequently into the maintenance under field conditions (factors) of place, stockyard for 7 days is wanted
Ask.
The PHC comprcssive strength that above-mentioned comparative example prepares is in about 80-81MPa, presentation quality, dimensional discrepancy and mechanical property
Deng all meeting country's pile tube standard-required.
Claims (7)
1. a prestressed high-strength concrete pile for non-evaporating pressure, this concrete comprises Binder Materials, high-efficiency water-reducing agent of poly-carboxylic acid
With coarse-fine aggregate and water；It is characterized in that, Binder Materials is made up of cement and breeze, accounts for the 15～20% of concrete gross mass, poly-
Carboxylic acid high efficiency water reducing agent water-reducing rate is higher than 25%, accounts for the 0.2 ~ 0.5% of concrete gross mass；Coarse-fine aggregate includes coarse aggregate and thin bone
Material, coarse aggregate is 5 ~ 25mm continuous grading granite stones, accounts for the 45 ~ 55% of concrete gross mass；Fine aggregate is modulus of fineness
The nickel minerals slag sand of 2.5 ~ 3.2, accounts for the 25 ~ 30% of concrete gross mass, and water accounts for the 5.0～6.0% of concrete gross mass.
The prestressed high-strength concrete pile of non-evaporating pressure the most as claimed in claim 1, it is characterised in that cement in Binder Materials
The 60～80% and 20～40% of Binder Materials quality are respectively accounted for breeze.
The prestressed high-strength concrete pile of non-evaporating pressure the most as claimed in claim 1, it is characterised in that cement is common silicic acid
Salt cement or portland cement.
The prestressed high-strength concrete pile of non-evaporating pressure the most as claimed in claim 1, it is characterised in that breeze is S95 level ore deposit
Powder.
The prestressed high-strength concrete pile of non-evaporating pressure the most as claimed in claim 1, it is characterised in that the crush values of coarse aggregate
Be 8%, elongated particles be 4%, clay content be 0.8%.
The prestressed high-strength concrete pile of non-evaporating pressure the most as claimed in claim 1, it is characterised in that nickel minerals slag sand be by
The machined modulus of fineness that reaches of nickel minerals slag is 2.7.
7. the preparation method of the prestressed concrete high-strength pipe pile of the non-evaporating pressure as described in claim 1-6 is arbitrary, its feature exists
In, comprise the steps: to take Binder Materials, high-efficiency water-reducing agent of poly-carboxylic acid and coarse-fine aggregate and water mix in blender in proportion
Uniformly, through concrete formation centrifugal forming, standing, atmospheric steam curing 6 hours under conditions of curing temperature is 80 ± 5 DEG C
Above, natural curing i.e. obtains described concrete high-strength pile tube for 7 days the most under field conditions (factors).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763936.9A CN106242437A (en) | 2016-08-31 | 2016-08-31 | A kind of prestressed high-strength concrete pile of non-evaporating pressure and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763936.9A CN106242437A (en) | 2016-08-31 | 2016-08-31 | A kind of prestressed high-strength concrete pile of non-evaporating pressure and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106242437A true CN106242437A (en) | 2016-12-21 |
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ID=57598173
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610763936.9A Pending CN106242437A (en) | 2016-08-31 | 2016-08-31 | A kind of prestressed high-strength concrete pile of non-evaporating pressure and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108162154A (en) * | 2017-12-20 | 2018-06-15 | 中交第三航务工程局有限公司 | The non-evaporating foster maintenance process of Big Pipe Pile and production technology |
| CN111377630A (en) * | 2019-12-06 | 2020-07-07 | 谢长田 | Application of nickel slag sand in PHC concrete pipe pile |
| CN111763042A (en) * | 2020-06-09 | 2020-10-13 | 浙江金鑫管桩有限公司 | Non-autoclaved PHC concrete pipe pile |
| CN114873985A (en) * | 2022-05-27 | 2022-08-09 | 惠州市三环构件有限公司 | PHC tubular pile concrete and PHC tubular pile |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478368A (en) * | 2014-12-29 | 2015-04-01 | 扬州大学 | Wear-resisting concrete doped with nickel slags |
| CN105777008A (en) * | 2016-03-15 | 2016-07-20 | 东南大学 | Autoclaving-free prestressed high-strength tube pile concrete and tube pile manufacturing method |
| CN105819718A (en) * | 2015-01-05 | 2016-08-03 | 中国建筑材料科学研究总院 | Concrete high-strength admixture, cement mixture and non-autoclaved ultra-high strength concrete product |
-
2016
- 2016-08-31 CN CN201610763936.9A patent/CN106242437A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478368A (en) * | 2014-12-29 | 2015-04-01 | 扬州大学 | Wear-resisting concrete doped with nickel slags |
| CN105819718A (en) * | 2015-01-05 | 2016-08-03 | 中国建筑材料科学研究总院 | Concrete high-strength admixture, cement mixture and non-autoclaved ultra-high strength concrete product |
| CN105777008A (en) * | 2016-03-15 | 2016-07-20 | 东南大学 | Autoclaving-free prestressed high-strength tube pile concrete and tube pile manufacturing method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108162154A (en) * | 2017-12-20 | 2018-06-15 | 中交第三航务工程局有限公司 | The non-evaporating foster maintenance process of Big Pipe Pile and production technology |
| CN111377630A (en) * | 2019-12-06 | 2020-07-07 | 谢长田 | Application of nickel slag sand in PHC concrete pipe pile |
| CN111763042A (en) * | 2020-06-09 | 2020-10-13 | 浙江金鑫管桩有限公司 | Non-autoclaved PHC concrete pipe pile |
| CN114873985A (en) * | 2022-05-27 | 2022-08-09 | 惠州市三环构件有限公司 | PHC tubular pile concrete and PHC tubular pile |
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Application publication date: 20161221 |
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