CN105924063A - Anticrack anticorrosion mass concrete and preparation method thereof - Google Patents
Anticrack anticorrosion mass concrete and preparation method thereof Download PDFInfo
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- CN105924063A CN105924063A CN201610273964.2A CN201610273964A CN105924063A CN 105924063 A CN105924063 A CN 105924063A CN 201610273964 A CN201610273964 A CN 201610273964A CN 105924063 A CN105924063 A CN 105924063A
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- concrete
- mass concrete
- cracking resistance
- water reducer
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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
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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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 anticrack anticorrosion mass concrete and a preparation method thereof and belongs to the technical field of building materials. The invention provides the anti-crack anticorrosion mass concrete. The anticrack anticorrosion mass concrete is prepared from 1 part by weight of cement, 0.25-0.41 parts by weight of hearthstone powder, 0.50-0.65 parts by weight of water, 3.21-3.85 parts by weight of coarse aggregate, 2.51-3.5 parts by weight of fine aggregate, 0.015-0.032 parts by weight of a corrosion inhibitor, 0.005-0.012 parts by weight of a water reducer and 0.001-0.006 parts by weight of polypropylene fibers. The blast furnace base anticrack anticorrosion mass concrete, which is prepared from specific components and satisfies saline-alkali geological environment requirements, has good workability and high strength, is convenient for construction work control and concrete construction, has a simple formula, greatly saves a cost, is prepared through simple and easy processes, is free of mineral admixtures and can be promoted in saline-alkali geological environments in Vietnam and China.
Description
Technical field
The present invention relates to anti-rotten mass concrete of cracking resistance and preparation method thereof, belong to building material technical field.
Background technology
For marine structure, sea sand building and varieties in saline-alkali areas building, in varieties in saline-alkali areas or surrounding containing substantial amounts of chloride ion and
Sulfate ion, easily produces corrosion effect to reinforcing bar and concrete, reduces concrete basicity, destroy the passivating film of rebar surface,
Causing steel bar corrosion and expansion, further result in crack and peeling, structure uses function and mechanical property continuous
Deterioration.To this end, expert proposes the antiseptic power of all measures raising xoncrete structure both at home and abroad, in concrete, wherein add resistance
Rust agent is exactly a kind of economical and practical, effective measures of easy construction.
And modern architecture relates to mass concrete construction often, such as high-rise building basis, large equipment base, high furnace foundation
Plinth, water resources dam etc..Its main feature is exactly that volume is big, and general entity minimum dimension is more than or equal to 1m.Its surface system
Number is smaller, and hydration heat of cement release ratio is relatively concentrated, and the internal ratio that heats up is very fast.When temperature difference between inside and outside concrete is bigger, coagulation can be made
The raw thermal cracking of local products, affects structural safety and normal use.Additionally, due to the impact of ambient temperature, if ground temperature is worked as in construction
Higher, after concreting molding, internal-external temperature difference is also easily generated thermal cracking relatively greatly.
Therefore, at salt-soda soil or the mass concrete of coastal region, good cracking resistance corrosion resistance is needed badly, at concrete matched
Composition and division in a proportion design aspect must take into the cracking resistance of xoncrete structure, anti-rotten characteristic, it has also become the major issue in Practical Project.
At present, the thinking of mix proportion design of mass concrete is " low hydration heat, low internal stress, low early strength ", i.e. adopts
With low hydration heat cement as the cementitious matter of mass concrete, the early stage internal stress making concrete is low, and early strength is also simultaneously
The lowest.And require higher for strength grade and the construction period is required tighter mass concrete, use existing match ratio
Relate to technology it is difficult to ensure that do not ftracture.For the antiseptic property of concrete, conventional method is for adding corrosion inhibitor.
Patent CN 105174857A discloses a kind of fiber concrete prefabricated components, solves existing concrete prefabricated components perishable
The problems such as erosion, cracking, fire resistance property difference, described fiber concrete is made up of the raw material of following weight portion: cement 300～500 parts,
Sand 600～800 parts, aggregate 700～900 parts, steel fibre or carbon fiber 15～25 parts, polystyrene 10～20 parts, phenol
2～5 parts, polyvinyl alcohol 2～5 parts, acetate 2～5 parts, water reducer 15～50 parts, corrosion inhibitor 15～50 parts, slag 30～
100 parts.This concrete prefabricated element uses multiple fiber to be raw material, and it is relatively costly, and the function of crack resistence is limited, uncomfortable
For mass concrete.While its antiseptic property is mainly by adding corrosion inhibitor water reducer in fiber concrete, in reality
Also set up what anti-corrosion resin layer realized in heart stake, its complicated process of preparation.
Summary of the invention
Present invention solves the technical problem that and be to provide the anti-rotten mass concrete of cracking resistance.
The anti-rotten mass concrete of cracking resistance of the present invention, is made up of the component of following weight portion:
Wherein, described cement is preferably Portland cement, more preferably P.O42.5R cement.
Described coarse aggregate is preferably rubble, and more preferably using particle diameter is 5～20mm continuous grading rubbles, and its rubble meets GB GB/T
Regulation to continuous size fraction in 14685-2011.
Described fine aggregate is preferably fluvial sand, more preferably uses the fluvial sand of modulus of fineness 2.7～2.9, more preferably uses modulus of fineness
2.84 fluvial sand.
Corrosion inhibitor commonly used in the art is all applicable to the present invention, as multiple in nitrite, phosphate, carbonate, fatty acid ester, MCI
Mould assembly corrosion inhibitor etc..
Preferably, described water reducer is at least one in poly carboxylic acid series water reducer, naphthalene water reducer, ligninsulfonate water reducer,
More preferably poly carboxylic acid series water reducer.
The anti-rotten mass concrete of cracking resistance of the present invention, is preferably made up of the component of following weight portion:
Second technical problem that the present invention solves is to provide the preparation method of the anti-rotten mass concrete of cracking resistance of the present invention.
The preparation method of the anti-rotten mass concrete of cracking resistance of the present invention, by proportioning successively by coarse aggregate, fine aggregate, cement and
Hearthstone powder, corrosion inhibitor, polypropylene fibre join in concrete mixer and stir, and water reducer are joined concrete simultaneously
Mix homogeneously in mixing water, then joins in concrete mixer by water and water reducer mixing liquid, be sufficiently stirred for 1min～
After 2.5min, concrete mix draws off from blender, concrete tank transport job site, carries out follow-up construction.
The present invention mainly by choosing the raw materials such as concrete cement, sand, stone, additive, carries out mix Design,
Corrosion inhibitor and the hearthstone powder of certain ingredients is added, without mineral admixture, and from reducing concrete in concrete mix
The heat of hydration and add the cracking resistance of concrete from the standpoint of a certain amount of fiber two.Tested by mix Design,
Use specific components and proportioning to prepare and meet blast furnace foundation cracking resistance under saline and alkaline geological environment, the mass concrete of anti-rotten characteristic.
Compared with prior art, there is advantages that
1) the anti-rotten concrete workability of cracking resistance of the present invention is good, intensity is C40 level, and intensity is high, and its setting time can be by adjusting
The consumption of water reducer controls, and the engineering time is easy to control, and concrete construction is convenient.Can use P.O42.5R cement, obtain is mixed
Solidifying soil early strength is high, it is adaptable to the construction period requires tighter mass concrete.
2) present invention uses the cement of certain content, sand, stone, water reducer and water, coordinates and adds specific hearthstone powder, corrosion inhibitor
And polypropylene fibre so that it is the cracking resistance of concrete, corrosion resistance are greatly improved, and meet blast furnace foundation under saline and alkaline geological environment
Cracking resistance, the technology of anti-rotten mass concrete require to have good cracking resistance, corrosion resistance, it is possible to as under the environment of salt-soda soil
Blast furnace foundation concrete use.
3) the anti-rotten concrete formulation of cracking resistance of the present invention is simple, has saved great amount of cost, and compound method is simple, it is not necessary to mineral are mixed
And material, can be applicable under Vietnam and domestic saline and alkaline geological environment.
Detailed description of the invention
The anti-rotten mass concrete of cracking resistance of the present invention, is made up of the component of following weight portion:
Cement 1 part；Hearthstone powder 0.25～0.41 part；Water 0.50～0.65 part；Coarse aggregate 3.21～3.85 parts；Fine aggregate
2.51～3.5 parts；Corrosion inhibitor 0.015～0.032 part；Water reducer 0.005～0.012 part；Polypropylene fibre 0.001～0.006
Part.
Wherein, described cement is preferably Portland cement, more preferably P.O42.5R cement.
Described coarse aggregate is preferably rubble, and more preferably using particle diameter is 5～20mm continuous grading rubbles, and its rubble meets GB GB/T
Regulation to continuous size fraction in 14685-2011.
Described fine aggregate is preferably fluvial sand, more preferably uses the fluvial sand of modulus of fineness 2.7～2.9, more preferably uses modulus of fineness
2.84 fluvial sand.
Corrosion inhibitor commonly used in the art is all applicable to the present invention, as multiple in nitrite, phosphate, carbonate, fatty acid ester, MCI
Mould assembly corrosion inhibitor etc..
Water reducer commonly used in the art is all applicable to the present invention, it is preferred that described water reducer is that poly carboxylic acid series water reducer, naphthalene system subtract
At least one in water preparation, ligninsulfonate water reducer, more preferably poly carboxylic acid series water reducer.
Hearthstone powder of the present invention is a kind of blast furnace stone powder, for steel mill during the refining pig iron, in order to reduce production temperature
Spend and add the product that limestone makes ferrum oxide reduction be derived as flux, cool down through water quenching method, grind to form fine-powdered,
For blast furnace stone powder, it is called for short hearthstone powder.Its chemical composition is mainly silicon oxide, aluminium oxide, calcium oxide and magnesium oxide four kinds.
The anti-rotten mass concrete of cracking resistance of the present invention, is preferably made up of the component of following weight portion: cement 1 part；Hearthstone powder 0.33
Part；0.59 part of water；Coarse aggregate 3.60 parts；Fine aggregate 2.82 parts；Corrosion inhibitor 0.025 part；Water reducer 0.008 part；Poly-third
Alkene fiber 0.003 part.
The preparation method of the anti-rotten mass concrete of cracking resistance of the present invention, by proportioning successively by coarse aggregate, fine aggregate, cement and
Hearthstone powder, corrosion inhibitor, polypropylene fibre join in concrete mixer and stir, and water reducer are joined concrete simultaneously
Mix homogeneously in mixing water, then joins in concrete mixer by water and water reducer mixing liquid, be sufficiently stirred for 1min～
After 2.5min, concrete mix draws off from blender, concrete tank transport job site, carries out follow-up construction.
Below in conjunction with embodiment, the detailed description of the invention of the present invention is further described, the most therefore limits the present invention to institute
Among the scope of embodiments stated.Raw material cement in embodiment uses PCB40 cement (being equivalent to domestic common 42.5R cement)；
Hearthstone powder is purchased from curing cement limited company of Taiwan system；Coarse aggregate uses particle diameter to be 5～20mm continuous grading rubbles；Fine aggregate
Using modulus of fineness is the fluvial sand of 2.84；Water reducer uses western card water reducer；Corrosion inhibitor uses Jian Yan the Kunlun, Beijing science and technology limited
The CABR-MS605 corrosion inhibitor that company produces；The polypropylene fibre that Chengdu Xin Disheng Science and Technology Ltd. produces selected by fiber, and water accords with
Close concrete-agitating water supply standard.
Embodiment 1
Moulding No. 1, No. 2 blast furnace engineering EPC Project of river quiet iron and steel industrial responsibility company limited for relying on more South Platform, preparation is more
South Platform moulds blast furnace foundation, and platform is moulded blast furnace foundation side's platform and is designed as long 43.8 meters, and wide 30.8 meters, foundation ditch elevation of bottom is FL-
4.100m, concrete square platform design grade is C40, theoretical total amount 5396m3, concrete once-cast amount is 5300m3If,
Counting its strength grade requirement is C40.
By choosing the raw materials such as Vietnam's locality concrete cement, sand, stone, additive, carry out mix Design, main
Will be by adding corrosion inhibitor and the hearthstone powder of certain ingredients in concrete mix, because Vietnam locality does not has mineral admixture,
The mainly cracking resistance of concrete from the standpoint of the heat of hydration reducing concrete and a certain amount of fiber two of interpolation.Pass through concrete
Mix-design is tested, and meets blast furnace foundation cracking resistance under the saline and alkaline geological environment of Vietnam, the large volume coagulation of anti-rotten characteristic to prepare
Soil.
According to technical scheme, after mixtures optimal design, weigh cement 281kg, hearthstone powder 94kg, 5～20mm respectively with weighing balance
Continuous grading rubble 1011kg, fluvial sand 793kg, mixing water 165kg, western card water reducer 2.25kg, corrosion inhibitor 7kg,
Polypropylene fibre 0.9kg.Successively rubble, fluvial sand, cement and hearthstone powder, corrosion inhibitor, polypropylene fibre are joined concrete
Stirring in blender, notice that first water reducer must join in concrete-agitating water simultaneously and go mixing, then Jiang Shui is with outer
Adding agent mixing liquid and join in concrete mixer, after being sufficiently stirred for 1min～2.5min, concrete mix is from blender
Draw off, concrete tank transport job site, carry out follow-up construction.
After concrete construction completes, its intensity meets the requirements, and concrete free from flaw, and its cracking resistance, decay resistance are good.
The tensile strength index of actual measurement concrete, after adding polypropylene fibre, the tensile strength of concrete brings up to from 1.71MPa
2.0～2.7MPa, it is effectively improved the cracking resistance of concrete.The total alkali of detection concrete and chloride ion content, through inspection
Survey concrete alkali content: 2.38/m3, concrete chloride ion content: 0.033%, the two content compliant standard.
The present invention uses hearthstone powder, it is not necessary to add breeze, because adding the hearthstone powder of high-quality, corrosion inhibitor and poly-third in this concrete
Alkene fiber, concrete anticracking, corrosion resistance are greatly improved, and meet blast furnace foundation cracking resistance under the saline and alkaline geological environment of Vietnam, resist
The technology requirement of rotten mass concrete.The present invention Successful utilization to more South Platform mould No. 1, No. 2 blast furnace foundations 10,000 in many ways
In concrete, apply respond well.This technology efficiently utilizes Vietnam's locality concrete raw material, has saved great amount of cost,
Its compound method is simple, can under Vietnam and domestic saline and alkaline geological environment wide popularization and application.
Comparative example 1
Cement 281kg, 5～20mm continuous grading rubble 1011kg, fluvial sand 793kg, mixing water is weighed respectively with weighing balance
165kg, western card water reducer 2.25kg, corrosion inhibitor 7kg, polypropylene fibre 0.9kg.Successively by rubble, fluvial sand, cement,
Corrosion inhibitor, polypropylene fibre join in concrete mixer and stir, and notice that first water reducer must join concrete simultaneously
Mixing water goes mixing, then water and additive mixing liquid are joined in concrete mixer, be sufficiently stirred for 1min～
After 2.5min, concrete mix draws off from blender, concrete tank transport job site, carries out follow-up construction.
Using the concrete that this kind of match ratio is prepared out, concrete slump is very big, and concrete isolates most probably, concrete pump
Send the most stifled pump, do not reach the requirement of C40 prevention of mass concrete.
Visible, the present invention adds hearthstone powder and can substitute for part of cement, reduce the heat of hydration, it is ensured that the intensity of concrete.
Claims (7)
1. the anti-rotten mass concrete of cracking resistance, it is characterised in that be made up of the component of following weight portion:
The anti-rotten mass concrete of cracking resistance the most according to claim 1, it is characterised in that: described cement is common silicic acid
Salt cement, preferably P.O42.5R cement.
The anti-rotten mass concrete of cracking resistance the most according to claim 1, it is characterised in that: described coarse aggregate is rubble, excellent
Choosing uses particle diameter to be 5～20mm continuous grading rubbles.
The anti-rotten mass concrete of cracking resistance the most according to claim 1, it is characterised in that: described fine aggregate is fluvial sand, excellent
Choosing uses the fluvial sand of modulus of fineness 2.7～2.9, more preferably uses the fluvial sand of modulus of fineness 2.84.
The anti-rotten mass concrete of cracking resistance the most according to claim 1, it is characterised in that: described water reducer is polycarboxylic-acid
At least one in water reducer, naphthalene water reducer, ligninsulfonate water reducer, preferably poly carboxylic acid series water reducer.
6. according to the anti-rotten mass concrete of the cracking resistance described in any one of Claims 1 to 5, it is characterised in that by following weight
The component of part is made:
7. the preparation method of the anti-rotten mass concrete of cracking resistance described in any one of claim 1～6, it is characterised in that: successively
Coarse aggregate, fine aggregate, cement and hearthstone powder, corrosion inhibitor, polypropylene fibre are joined in concrete mixer and stir,
Water reducer is joined mix homogeneously in concrete-agitating water simultaneously, then water and water reducer mixing liquid is joined concrete
In blender, after being sufficiently stirred for 1～2.5min, take out, after construction, obtain the anti-rotten mass concrete of cracking resistance.
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| CN201610273964.2A CN105924063A (en) | 2016-04-28 | 2016-04-28 | Anticrack anticorrosion mass concrete and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108191315A (en) * | 2018-01-25 | 2018-06-22 | 江苏省建筑工程集团有限公司 | A kind of concrete prepared using beach sand |
| CN109020408A (en) * | 2018-10-10 | 2018-12-18 | 扬州工业职业技术学院 | A kind of mass concrete anti-cracking method using a variety of admixtures |
| CN110002822A (en) * | 2019-04-23 | 2019-07-12 | 北京中科惠景储能材料科技有限公司 | A kind of preparation method of high intensity frost-resistant concrete |
| CN113955988A (en) * | 2021-10-18 | 2022-01-21 | 浙江艮威水利建设有限公司 | Large-volume concrete block, pouring construction method and poured dam |
| CN117800682A (en) * | 2023-12-29 | 2024-04-02 | 广东工建混凝土有限公司 | Production method of high-crack-resistance concrete |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200513575A (en) * | 2003-10-09 | 2005-04-16 | Marble Plant Rsea Engineering Corp | Construction site cover board |
| TW200513450A (en) * | 2003-10-09 | 2005-04-16 | Jung Min Engineering Corp | Eugenic concrete |
| TW201100349A (en) * | 2009-06-25 | 2011-01-01 | Univ Nat Taiwan Science Tech | Composition of pervious plant-growing concrete and its preparation |
| CN103723968A (en) * | 2013-12-27 | 2014-04-16 | 中核混凝土股份有限公司 | Concrete for volute casing pump structure of nuclear power plant PX pump room and pouring forming method of concrete |
-
2016
- 2016-04-28 CN CN201610273964.2A patent/CN105924063A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200513575A (en) * | 2003-10-09 | 2005-04-16 | Marble Plant Rsea Engineering Corp | Construction site cover board |
| TW200513450A (en) * | 2003-10-09 | 2005-04-16 | Jung Min Engineering Corp | Eugenic concrete |
| TW201100349A (en) * | 2009-06-25 | 2011-01-01 | Univ Nat Taiwan Science Tech | Composition of pervious plant-growing concrete and its preparation |
| CN103723968A (en) * | 2013-12-27 | 2014-04-16 | 中核混凝土股份有限公司 | Concrete for volute casing pump structure of nuclear power plant PX pump room and pouring forming method of concrete |
Non-Patent Citations (1)
| Title |
|---|
| 戴会生: "《混凝土搅拌站实用技术》", 31 August 2014, 中国建材工业出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108191315A (en) * | 2018-01-25 | 2018-06-22 | 江苏省建筑工程集团有限公司 | A kind of concrete prepared using beach sand |
| CN109020408A (en) * | 2018-10-10 | 2018-12-18 | 扬州工业职业技术学院 | A kind of mass concrete anti-cracking method using a variety of admixtures |
| CN110002822A (en) * | 2019-04-23 | 2019-07-12 | 北京中科惠景储能材料科技有限公司 | A kind of preparation method of high intensity frost-resistant concrete |
| CN113955988A (en) * | 2021-10-18 | 2022-01-21 | 浙江艮威水利建设有限公司 | Large-volume concrete block, pouring construction method and poured dam |
| CN113955988B (en) * | 2021-10-18 | 2022-09-23 | 浙江艮威水利建设有限公司 | Large-volume concrete block, pouring construction method and poured dam |
| CN117800682A (en) * | 2023-12-29 | 2024-04-02 | 广东工建混凝土有限公司 | Production method of high-crack-resistance concrete |
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Application publication date: 20160907 |