CN103214207B - Concrete anticorrosive and rust-inhibiting pumping agent - Google Patents
Concrete anticorrosive and rust-inhibiting pumping agent Download PDFInfo
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- CN103214207B CN103214207B CN201310063597.XA CN201310063597A CN103214207B CN 103214207 B CN103214207 B CN 103214207B CN 201310063597 A CN201310063597 A CN 201310063597A CN 103214207 B CN103214207 B CN 103214207B
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Abstract
The invention relates to a concrete anticorrosive and rust-inhibiting pumping agent which is compounded by using a water-reducing component, a slump-retaining component, a rust-inhibiting component, an expansion component, an air-entraining component, and a defoaming component. The pumping agent satisfies various performance specifications of three national industry standards which are JC473-2001 concrete pumping agent, JC/T1011-2006 of concrete sulfate-erosion-resistant preservative, and JT/T537-2004 reinforced concrete rust inhibitor. With one time of dosing, concrete corrosion prevention, reinforcement rust inhibition, and pumping construction requirements can be satisfied.
Description
Technical field
The invention belongs to a kind of concrete corrosion-prevention rust-resistance pumping agent.
Background technology
Concrete pump-feed agent is a kind of admixture that can improve concrete mix pump-conveying property, make concrete mix have can be smoothly by transport pipe, do not block, do not emanate, performance that visco-plasticity is good, it is composited by water reducer, retardant etc. conventionally.Along with the development of concrete construction engineering, concrete performance is also had higher requirement, dragon its be the concrete durability index such as concrete anticorrosion, reinforcing bar resistance rust show more outstanding.Current for meeting the joint demand of concrete performance and construction, usual method is in concrete, add respectively one or two kinds of functional admixtures, and pumping agent forms mixture, this has not only increased difficulty of construction and production cost, and very easily occur that in several concrete admixtures, identical or close effect component repeats to mix, cause mix excessive or leak add, the situation such as add, especially while running into the bad several concrete admixture that even can not mix of intermiscibility, can reduce the usefulness of admixture, its result the lighter causes the secret water of concrete, segregation, harden, reduce until lose serviceability, thereby can not pumping, severe one can cause construction safety accident and serious concrete quality accident, thereby jeopardize the building safety life-span.Therefore, develop a kind of existing antiseptic concrete, reinforcing bar rust prevention function, can meet again pumping agent performance requriements, meet the concrete admixture of pumping construction demand, tool is of great significance.
Summary of the invention
For solving the problems of the technologies described above, the present invention aims to provide a kind of concrete corrosion-prevention rust-resistance pumping agent, this product is meeting JC473-2001 " concrete pump-feed agent ", JC/T1011-2006 " agent on crack resistance of concrete Sulfates corrodes sanitas " and JT/T537-2004 " antirust for reinforced concrete ", when three national sector standard properties technical indicators, have advantages of once to add and just can realize antiseptic concrete, reinforcing bar resistance rust and meet pumping construction demand.
The technical scheme addressing the above problem is as follows, and this concrete corrosion-prevention rust-resistance pumping agent is composited by the raw material of following weight part, wherein:
8～18 parts of diminishing components
Collapse 5～10 parts of components of guarantor
10～15 parts of resistance rust components
60～70 parts of expansion components
0.2～0.5 part of bleed component
0.1～0.5 part of froth breaking component.
When concrete enforcement, in described raw material, be respectively with listed as parts by weight: 15 parts of diminishing components, protect 8 parts of the components of collapsing, 12 parts of components of resistance rust, 65 parts of expansion components, 0.3 part of bleed component, 0.3 part of froth breaking component.
When concrete enforcement, described diminishing component is a kind of in methacrylic polyether graft copolymers, naphthalenesulfonate condensation compound, sulfamate condenses or aliphatic sulfonate condenses or two kinds.
When concrete enforcement, the described guarantor component of collapsing is the combination of heptose sodium sugar, dextrin or Seignette salt and tripoly phosphate sodium STPP, mixes in the ratio of 2:8.
When concrete enforcement, described resistance rust component is the combination of Sodium Silicofluoride and Sodium Benzoate, mixes in the ratio of 1:1.
When concrete enforcement, described expansion component is calcium sulphoaluminate high-efficiency expanding agent powder.
When concrete enforcement, described bleed component is sodium alkyl sulfate.
When concrete enforcement, described froth breaking component is German AGITAN powder defoamer P803.
Beneficial effect: concrete corrosion-prevention rust-resistance pumping agent of the present invention belongs to solid state powder shape, each component intermiscibility is good, chemical reaction can not occur, and producing compound tense, to be easy to mix even, and it is long that final product is easy to packaging, long-distance transportation cost saving, period of storage; Be particularly useful for C20～C80 and have pump concrete and commerical ready-mixed concrete anticorrosion, that resistance rust requires; Volume be in concrete gelling material weight 4～5%.
The concrete that efficient diminishing component in pumping agent of the present invention can make is under the constant condition of water consumption, and the slump significantly increases concrete flowability more than being increased to 210mm from 100mm, realizes concrete pumping, and keeps concrete strength constant, guarantor's component of collapsing can effectively delay C3A(tricalcium aluminate in cement) and C3S(tricalcium silicate) aquation, reduce hydration rate, postpone cement exothermic peak, reduce cement exothermic peak, reduce concrete internal temperature, ensure that 1 hour retention value of concrete slump is greater than 150mm on the one hand, there is longer construction open season, guarantee pumping, reduce on the other hand the concrete inside and outside temperature difference, avoid concrete to produce temperature difference crack, improve agent on crack resistance of concrete vitriol and salt (chlorine) ion, the performance that chemical substance is infiltrated: protecting the tripoly phosphate sodium STPP collapsing in component again can be by the protective membrane that is adsorbed on the densification of rebar surface cathodic area formation one deck to reinforcing bar, oxygen is played to barrier action, stop steel bar corrosion, in resistance rust component, Sodium Silicofluoride and Sodium Benzoate can be participated in interfacial chemical reaction directly, form the passive film of ferric oxide in rebar surface positive column to improve reinforcing bar resistance of chloride ion penetration, stop the loss of iron ion to stop steel bar corrosion, can effectively suppress alkali-aggregate reaction simultaneously, by the common mixing effect of above-mentioned two kinds of resistance rust modes, realize reinforcing bar the moon, sun the two poles of the earth are protected simultaneously, improve the ability that concrete stops steel bar corrosion, the crystal that expansion component calcium sulphoaluminate and cement minerals component reaction generate has the effect of filling, obstruction, closed concrete capillary pore, increase concrete density, the concrete drying shrinkage of effective compensation, prevent or reduce the generation of the harmful crackle of drying shrinkage, improve the performance of agent on crack resistance of concrete vitriol and salt (chlorine) ion, chemical substance infiltration, bleed component and froth breaking component can make inside concrete generation be uniformly distributed, sealing, stable, it is discontinuous that (interval 100～200 μ m), diameter is at the miniature spherical bubble of 20～200 μ m, eliminate diameter and be greater than 200 μ m bullas, miniature spherical bubble can be blocked, closed concrete capillary pore, improve concrete plasticity and cohesion, reduce plastic crack and settlement crack, improve concrete water-retentivity, reduce slump-loss, improve concrete pumpability, can obviously delay alkali-aggregate reaction, strengthen agent on crack resistance of concrete vitriol and salt (chlorine) ion, the performance that chemical substance is infiltrated.
The present invention is by the synergy of each constituent materials, the concrete that makes to mix concrete corrosion-prevention rust-resistance pumping agent meets the requirement of the properties technical indicator of national sector standard JC473-2001 " concrete pump-feed agent ", JC/T1011-2006 " agent on crack resistance of concrete Sulfates corrodes sanitas ", three standards in JT/T537-2004 " antirust for reinforced concrete " simultaneously, realize concrete and prevent that vitriol and salt (chlorine) ion intrusion burn into from stoping the object of steel bar corrosion, pumping construction, and use is especially convenient.
Embodiment
Under normal temperature, atmospheric pressure state, by selected raw material and weight part, add in LDH type colter mixer according to diminishing component, the order of protecting the component of collapsing, resistance rust component, expansion component, bleed component, froth breaking component, stir 10-15 minutes, after mixing, be discharged into wrapping machine packaging, obtain concrete corrosion-prevention rust-resistance pumping agent finished product.Especially taking weight part: 15 parts of diminishing components, guarantor are collapsed 8 parts of components, 12 parts of components of resistance rust, 65 parts of expansion components, 0.3 part of bleed component and 0.3 part of mixing manufacture of froth breaking component as good.
The purity of selected raw material is technical grade standard.
Below in conjunction with embodiment, process of the present invention and effect are described further:
Embodiment 1: a kind of concrete corrosion-prevention rust-resistance pumping agent, each component raw material and composition by weight are: naphthalenesulfonate condensation compound 45kg, aliphatic sulfonate condenses 105 kg, dextrin 16 kg, tripoly phosphate sodium STPP 64 kg, Sodium Silicofluoride 60 kg, Sodium Benzoate 60 kg, calcium sulphoaluminate high-efficiency expanding agent 650 kg, sodium alkyl sulfate 3 kg, P803 defoamer 3 kg.
Embodiment 2: a kind of concrete corrosion-prevention rust-resistance pumping agent, each component raw material and composition by weight are: methacrylic polyether graft copolymers 80 kg, dextrin 16 kg, tripoly phosphate sodium STPP 64 kg, Sodium Silicofluoride 70 kg, Sodium Benzoate 70 kg, calcium sulphoaluminate high-efficiency expanding agent 700 kg, sodium alkyl sulfate 2 kg, P803 defoamer 5 kg.
Embodiment 3: a kind of concrete corrosion-prevention rust-resistance pumping agent, each component raw material and composition by weight are: naphthalenesulfonate condensation compound 150 kg, heptose sodium sugar 20 kg, tripoly phosphate sodium STPP 80 kg, Sodium Silicofluoride 50 kg, Sodium Benzoate 50 kg, calcium sulphoaluminate high-efficiency expanding agent 650 kg, sodium alkyl sulfate 2 kg, P803 defoamer 3 kg.
Embodiment 4: a kind of concrete corrosion-prevention rust-resistance pumping agent, each component raw material and composition by weight are: naphthalenesulfonate condensation compound 90kg, sulfamate condenses 39 kg, Seignette salt 20 kg, tripoly phosphate sodium STPP 80 kg, Sodium Silicofluoride 65 kg, Sodium Benzoate 65 kg, calcium sulphoaluminate high-efficiency expanding agent 640 kg, sodium alkyl sulfate 4 kg, P803 defoamer 3 kg.
The concrete corrosion-prevention rust-resistance pumping agent that each embodiment makes above, test subject and method according to national sector standard JC473-2001 " concrete pump-feed agent ", JC/T1011-2006 " agent on crack resistance of concrete Sulfates corrodes sanitas ", JT/T537-2004 " antirust for reinforced concrete " regulation are tested detection, detecting volume is 4.5% of gelling material weight, the results are shown in following table:
Can find out from detected result, the every technical performance index of a kind of concrete corrosion-prevention rust-resistance pumping agent of the present invention meets the requirement of the properties technical indicator of national sector standard JC473-2001 " concrete pump-feed agent ", JC/T1011-2006 " agent on crack resistance of concrete Sulfates corrodes sanitas ", three standards in JT/T537-2004 " antirust for reinforced concrete " simultaneously completely, and pump-conveying property is more excellent.
Claims (1)
1. a concrete corrosion-prevention rust-resistance pumping agent, is characterized in that: the raw material by following weight part is composited, wherein:
15 parts of diminishing components,
Guarantor collapse 8 parts of components,
12 parts of components of resistance rust,
65 parts of expansion components,
0.3 part of bleed component,
0.3 part of froth breaking component;
Described diminishing component is two kinds that a kind of or arbitrary proportion in methacrylic polyether graft copolymers, naphthalenesulfonate condensation compound, sulfamate condenses or aliphatic sulfonate condenses mixes;
Guarantor's component of collapsing is the combination of heptose sodium sugar and tripoly phosphate sodium STPP, mix by the part by weight of 2:8, or the combination of dextrin and tripoly phosphate sodium STPP, mix by the part by weight of 2:8, or the combination of Seignette salt and tripoly phosphate sodium STPP, mixes by the part by weight of 2:8;
Resistance rust component is the combination of Sodium Silicofluoride and Sodium Benzoate, mixes by the part by weight of 1:1;
Expansion component is calcium sulphoaluminate high-efficiency expanding agent powder;
Bleed component is sodium alkyl sulfate;
Froth breaking component is German AGITAN powder defoamer P803.
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| CN201310063597.XA CN103214207B (en) | 2013-02-28 | 2013-02-28 | Concrete anticorrosive and rust-inhibiting pumping agent |
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| CN201310063597.XA CN103214207B (en) | 2013-02-28 | 2013-02-28 | Concrete anticorrosive and rust-inhibiting pumping agent |
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| CN103214207B true CN103214207B (en) | 2014-11-05 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348642A (en) * | 2016-11-30 | 2017-01-25 | 张松波 | Low-slump-loss concrete pumping agent |
| CN107698188B (en) * | 2017-11-13 | 2020-10-27 | 佛山市南海区沥建混凝土有限公司 | Reinforced pumping agent for concrete |
| CN109704675B (en) * | 2019-01-17 | 2022-02-25 | 深圳市利建混凝土有限公司 | Anti-corrosion and anti-rust concrete and application thereof |
| CN110015878A (en) * | 2019-04-23 | 2019-07-16 | 中交浚浦建筑科技(上海)有限公司 | A kind of prefabricated component concrete and its preparation process |
| CN112028531B (en) * | 2020-08-24 | 2022-06-17 | 潍坊纵横建材有限公司 | Concrete corrosion-proof rust-proof composite additive and preparation method thereof |
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| JP2006336365A (en) * | 2005-06-03 | 2006-12-14 | Yahagi Construction Co Ltd | Asr countermeasure method and asr countermeasure structure |
| CN101412601A (en) * | 2008-04-08 | 2009-04-22 | 北京冶建新技术有限公司 | Composite anti-corrosive rust inhibitor for preparing high-durability concrete |
| CN101475334A (en) * | 2008-09-08 | 2009-07-08 | 云南省建筑科学研究院 | Composite concrete antiseptic agent |
| CN102531458A (en) * | 2010-12-09 | 2012-07-04 | 苏笮斌 | Anti-crack and anti-corrosion plasticizer composition and preparation method thereof |
| CN102690077A (en) * | 2011-03-25 | 2012-09-26 | 苏琳 | Anticorrosion expansion compacting agent composition and preparation method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006336365A (en) * | 2005-06-03 | 2006-12-14 | Yahagi Construction Co Ltd | Asr countermeasure method and asr countermeasure structure |
| CN101412601A (en) * | 2008-04-08 | 2009-04-22 | 北京冶建新技术有限公司 | Composite anti-corrosive rust inhibitor for preparing high-durability concrete |
| CN101475334A (en) * | 2008-09-08 | 2009-07-08 | 云南省建筑科学研究院 | Composite concrete antiseptic agent |
| CN102531458A (en) * | 2010-12-09 | 2012-07-04 | 苏笮斌 | Anti-crack and anti-corrosion plasticizer composition and preparation method thereof |
| CN102690077A (en) * | 2011-03-25 | 2012-09-26 | 苏琳 | Anticorrosion expansion compacting agent composition and preparation method thereof |
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Denomination of invention: A concrete anti-corrosion and rust resistant pumping agent Effective date of registration: 20230829 Granted publication date: 20141105 Pledgee: Bank of China Limited Jiangshan Branch Pledgor: ZHEJIANG LAOHUSHAN BUILDING MATERIALS Co.,Ltd. Registration number: Y2023330001871 |
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