CN101348346B - Concrete pipe pile plasticizer, preparation thereof and method for producing pipe pile with the same - Google Patents
Concrete pipe pile plasticizer, preparation thereof and method for producing pipe pile with the same Download PDFInfo
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- CN101348346B CN101348346B CN200810021881XA CN200810021881A CN101348346B CN 101348346 B CN101348346 B CN 101348346B CN 200810021881X A CN200810021881X A CN 200810021881XA CN 200810021881 A CN200810021881 A CN 200810021881A CN 101348346 B CN101348346 B CN 101348346B
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- Prior art keywords
- pipe pile
- plasticizer
- concrete
- concrete pipe
- pile
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/56—Compositions suited for fabrication of pipes, e.g. by centrifugal casting, or for coating concrete pipes
Abstract
The invention relates to a concrete pipe pile plasticizer, a method for preparing the concrete pipe pile plasticizer and a method for producing the pipe pile, wherein the concrete pipe pile plasticizer consists of the following components in weight percentage: 33.9 to 60.2 percent of polyocarboxy acid water reducing agent, 3.2 to 4.0 percent of alkanolamine, 32.2 to 56.5 percent of nitride, nitrite or hydrosulfate and 4.3 to 5.6 percent of organic lower alcohol; the concrete pipe pile plasticizer of the invention is mixed with concrete raw materials, under the conditions of not changing original concrete raw materials, stirring technical parameters, technological conditions and technical parameters, the concrete pipe pile plasticizer does not need high pressure curing but only normal pressure steam curing, and the compression strength of concrete reaches 96.7MPa, and the C90 class requirements of PHC pipe pile are realized; moreover, the product has the characteristics of super high strength, high durability, simple process, convenience, practicability and energy conservation and environmental protection.
Description
Technical field
The present invention relates to a kind of concrete plasticiser and preparation method thereof and using method, specifically relate to a kind of concrete pipe pile plasticizer that is used for production high strength pile tube and preparation method thereof and the method for utilizing its production high strength pile tube, belong to concrete high strength pile tube technical field.
Background technology
Along with the city's constant development construction, skyscraper is more and more, and highway, railway, bridge etc. also develop rapidly, generally all will use pile tube and carry out capital construction in these are built.Because very big weight need be born in the basis of high building, and will reach certain shock strength, therefore require also higher to its structural strength.Traditional scene pouring formula, the production cycle is long, and concrete condenses fully and has certain intensity probably needs about 1 month time, makes that the construction period is prolonged greatly; And its structural strength is also not enough, does not reach high level shockproof requirements.
Continuous development along with technology, China has adopted external pile tube technology in groping, that is: will in factory, produce in advance as the pile tube of building foundation, pile tube being transported to mode such as field by using hydraulic pressure in when building is driven underground pile tube, rub and the support dual function owing to push tight with ground and have, the bearing capacity height, the shearing resistance height, anti-seismic performance is good, and control tube quality of pile well when prefabricated tubular pile, whether the every performance that detects pile tube easily is up to standard, and therefore application is very universal, and has formed a series of place and national standard.
Used pile tube much all is the PHC pile tube at present, PHC pile tube full name is the prestressed high strength concrete pile tube, pile concrete is generally C80 level concrete, and its main production is: lay concrete material, apply prestress, high speed centrifugation moulding, saturated vapo(u)r maintenance, the demoulding, autoclave.The PHC pile tube has characteristics such as high strength, high-density, low water-cement ratio, hyposmosis, shock-resistant, structural bearing capacity height, has been widely used in industry and all kinds of engineering structures such as covil construction, highway and railroad bridge, port and pier.When producing pile tube, all in concrete, add fluidizer at present, not only can reduce water consumption, make the intensity of pile tube guarantee to some extent, and the production cycle is shortened, and improve the concrete structure of pile tube, improve the performance of pile tube.Through constantly improving, fluidizer has developed into the third generation up till now, and it has improved every performance of pile tube effectively.But, its water-reducing rate of present fluidizer is all less than 25%, therefore in the process of producing pile tube, solidify and to have time of certain intensity longer, make the production cycle elongated, early strength is lower, and must carry out high-pressure curing to pile tube in the later stage, the high pressure steam of utilizing the high-duty boiler generation is controlled the requirement that pile concrete reaches C80 level concrete crushing strength through regular hour, temperature in autoclave.Because will use high-duty boiler aborning, therefore cause production cost higher, and environmental pollution is heavier, even the flue dust that produces, sulfurous gas, waste residue, sewage are through handling, when increasing cost, also can't handle clean fully, environmental pollution is bigger, consumes more natural resources.
In addition, adopt the high-strength pipe pile of present explained hereafter, its frost resistance is bad, and freezing-thawing cycles is generally less than 50 times, and resisting chloride ion penetration performance and erosion resistance are lower.Pile tube in use, it is faced with harmful ion erosive problem, corrode and north salt in winter freezes erosion or the like as coastal waters such as the infiltration of (containing acid, alkali, salt) solubility particle in the underground water erosion of (containing acid, alkali, salt), the soil and port and pier, maritime works's engineering chlorion, the weather resistance of present pile tube is not high, after corroding and permeating, shortened the work-ing life of pile tube, and possible serious threat building safety can not satisfy the requirement of national priority project high-durability.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of in process of production without high-pressure steaming and cultivating, after normal pressure vapor cure, concrete strength of pile can reach above concrete pipe pile plasticizer that requires of C80 level and preparation method thereof and utilize it to produce the method for pile tube, energy-conserving and environment-protective, and the concrete strength and the weather resistance of raising pile tube.
For achieving the above object, the present invention is achieved by the following technical solutions:
Concrete pipe pile plasticizer is characterized in that being made by following component in percentage by weight:
33.9～60.2% polycarboxylate water-reducer, 3.2～4.0% alkanolamine, 32.2～56.5% nitrate or organic lower alcohol of nitrite or sulfur hydrogen salt and 4.3～5.6%.
The method for preparing aforesaid concrete pipe pile plasticizer, it is characterized in that measuring respectively according to above-mentioned weight percent comparison polycarboxylate water-reducer, alkanolamine, nitrate or nitrite or sulfur hydrogen salt, organic lower alcohol, with the mixing, stirring, homogenize 30～50 minutes that feed intake successively of each constituent of above-mentioned metering, it is qualified to detect, the finished product jar of packing into.
Utilize aforesaid concrete pipe pile plasticizer to produce the method for PHC pile tube, it is characterized in that may further comprise the steps:
(1), concrete pipe pile plasticizer measured respectively with concrete raw material mixes, stir, added concrete pipe pile plasticizer is 0.46～1.24% of an agglutinate weight;
(2), with the concrete material cloth in the punching block of Steel Reinforcement Cage is housed that stirs, matched moulds;
(3), pile tube is applied prestress, and the high speed centrifugation moulding;
(4), plasma discharge, carry out atmospheric steam curing;
(5), the demoulding, product is deposited.
The invention has the beneficial effects as follows: the concrete pipe pile plasticizer among the present invention, with the concrete raw material mix, under the situation that does not change original concrete raw material, stirring technique parameter and processing condition and technical parameter, do not need autoclave curing, only need pass through atmospheric steam curing, can make concrete reach ultimate compression strength 96.7MPa, realize the requirement of PHC pile tube ultimate compression strength C90 level, and make product have that superelevation is strong, the characteristic of high-durability, technology is simple, convenient, practical, energy-conserving and environment-protective.
Description of drawings
Fig. 1 is preparation technology's schema of the concrete pipe pile plasticizer among the present invention;
Fig. 2 is the process flow sheet of the concrete plasticiser among the present invention when being used to produce the PHC pile tube.
Embodiment
Below in conjunction with accompanying drawing the present invention is done concrete introduction.
Concrete pipe pile plasticizer among the present invention, comprise 33.9～60.2% polycarboxylate water-reducer, 3.2～4.0% alkanolamine, 32.2～56.5% nitrate or organic lower alcohol of nitrite or sulfur hydrogen salt and 4.3～5.6%, above per-cent is weight percentage.
Embodiment 1:
According to the polyester polycarboxylate water-reducer of weight percent metering 60.2%, 3.2% amino ethyl ethanolamine, 32.2% Sodium Nitrite and 4.3% ethylene glycol, above-mentioned raw materials is mixed, stirred homogenize 30～50 minutes, the product jar of packing into after qualified after testing is standby.
Embodiment 2:
According to the polyethers polycarboxylate water-reducer of weight percent metering 40.2%, 3.5% diethanolamine, 51.7% nitrocalcite and 4.6% glycerol, above-mentioned raw materials is mixed, stir homogenize 30～50 minutes, the product jar of packing into after qualified after testing is standby.
Embodiment 3:
According to the hyperbranched class polycarboxylate water-reducer of weight percent metering 33.9%, 4.0% diethyl Propanolamine, 56.5% sulphur hydracid iron and 5.6% propylene glycol, above-mentioned raw materials is mixed, stirred homogenize 30～50 minutes, the product jar of packing into after qualified after testing is standby.
In above-mentioned three embodiment, concrete pipe pile plasticizer and the concrete raw material of producing measured respectively mix stirring, the concrete pipe pile plasticizer that is added is respectively 0.46%, 0.85%, 1.24% of agglutinate weight.With concrete material cloth, the matched moulds in the punching block of Steel Reinforcement Cage is housed that stirs, pile tube is applied prestress, after the high speed centrifugation moulding, plasma discharge, atmospheric steam curing, after treating that pile tube meets the requirements of technical parameter, the demoulding can directly be put into product the finished product stockyard, need not to carry out autoclave curing again.
The present invention's existing P HC pile tube production technique of comparing, the link that has saved autoclave, no longer need high-duty boiler, saved the expense of fuel and processing flue dust, waste gas, waste residue, waste water, reduce investment, saved production cost, reduced waste discharge, shortened the production cycle, environment-friendly high-efficiency.The present invention does not change starting material and processing condition and the parameter in the production process, so technology is simple, convenient, practical.
And the performance of the pile tube of producing also is much higher than the performance of the pile tube that present technology produces:
1, superelevation is strong: PHC tubular pile concrete ultimate compression strength can reach 96.7MPa, is much higher than the 85.0MPa that present technology can reach;
2, high-durability:
(1) resisting chloride ion penetration: displacement flux＜900c, and the displacement flux of the PHC pile tube of technology production is at present wanted〉1100c; Chlorion expands number system number＜1.2 * 10
-12m
2/ s, and the number system of the chlorion of technology expansion at present number is wanted〉3.4 * 10
-12m
2/ s;
(2) frost resistance: freezing-thawing cycles 〉=300 time, and technology is wanted＜50 times at present;
(3) erosion resistance: drying and watering cycle COEFFICIENT K
x1.32, and K in the present technology
x＜0.80.
The foregoing description does not limit the present invention in any form, and all technical schemes that mode obtained of taking to be equal to replacement or equivalent transformation all drop in protection scope of the present invention.
Claims (3)
1. concrete pipe pile plasticizer is characterized in that being made by following component in percentage by weight:
33.9～60.2% polycarboxylate water-reducer, 3.2～4.0% alkanolamine, 32.2～56.5% nitrate or organic lower alcohol of nitrite or sulfur hydrogen salt and 4.3～5.6%.
2. the method for preparing the described concrete pipe pile plasticizer of claim 1, it is characterized in that measuring respectively according to the weight percent of claim 1 comparison polycarboxylate water-reducer, alkanolamine, nitrate or nitrite or sulfur hydrogen salt, organic lower alcohol, each constituent of above-mentioned metering is mixed, stirs homogenize 30～50 minutes, it is qualified to detect, the finished product jar of packing into.
3. the method for utilizing the described concrete pipe pile plasticizer of claim 1 to produce the PHC pile tube is characterized in that may further comprise the steps:
(1), concrete pipe pile plasticizer measured respectively with concrete raw material mixes, stir, added concrete pipe pile plasticizer is 0.46～1.24% of an agglutinate weight;
(2), with the concrete material cloth in the punching block of Steel Reinforcement Cage is housed that stirs, matched moulds;
(3), pile tube is applied prestress, and the high speed centrifugation moulding;
(4), plasma discharge, carry out atmospheric steam curing;
(5), the demoulding, product is deposited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021881XA CN101348346B (en) | 2008-08-26 | 2008-08-26 | Concrete pipe pile plasticizer, preparation thereof and method for producing pipe pile with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021881XA CN101348346B (en) | 2008-08-26 | 2008-08-26 | Concrete pipe pile plasticizer, preparation thereof and method for producing pipe pile with the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101348346A CN101348346A (en) | 2009-01-21 |
| CN101348346B true CN101348346B (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810021881XA Expired - Fee Related CN101348346B (en) | 2008-08-26 | 2008-08-26 | Concrete pipe pile plasticizer, preparation thereof and method for producing pipe pile with the same |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557517B (en) * | 2012-01-12 | 2013-09-11 | 四川路加四通科技发展有限公司 | High-efficiency admixture of subway shield segments, preparation method and use method thereof |
| CN103641400B (en) * | 2013-11-25 | 2015-01-14 | 江苏东浦管桩有限公司 | Energy-saving low-carbon method for producing tubular pile |
| EP3438073A1 (en) * | 2017-07-31 | 2019-02-06 | Chryso | Additive for hydraulic binder useful to prevent the formation of rust-colored stains at the surface of hydraulic compositions |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200354A (en) * | 2007-11-30 | 2008-06-18 | 苏州二建建筑集团有限公司 | Concrete super instant coagulant |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200354A (en) * | 2007-11-30 | 2008-06-18 | 苏州二建建筑集团有限公司 | Concrete super instant coagulant |
Non-Patent Citations (1)
| Title |
|---|
| 仲以林等.新型改性萘磺酸盐甲醛缩合物超塑化剂在高强管桩中的应用.《纪念中国混凝土外加剂协会成立20周年论文集》.2006,88－94. * |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20090121 Assignee: Nanjing and building materials Co.,Ltd. Assignor: Tong Changrong Contract record no.: 2010320000364 Denomination of invention: Concrete pipe pile plasticizer, preparation thereof and method for producing pipe pile with the same License type: Exclusive License Record date: 20100407 |
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Effective date of registration: 20190308 Address after: 239001 Room 3 # 120, Science Creation Industrial Park, Nanzhao District, Chuzhou City, Anhui Province Patentee after: Anhui Fusaite New Materials Co.,Ltd. Address before: Room 401, Unit 1, No. 5, Hanzhongmenwai Street, Gulou District, Nanjing City, Jiangsu Province Patentee before: Tong Changrong |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20210826 |