CN102992672B - Anti-crack water-proof agent for concrete - Google Patents
Anti-crack water-proof agent for concrete Download PDFInfo
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- CN102992672B CN102992672B CN201210492156.7A CN201210492156A CN102992672B CN 102992672 B CN102992672 B CN 102992672B CN 201210492156 A CN201210492156 A CN 201210492156A CN 102992672 B CN102992672 B CN 102992672B
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- slag
- concrete
- proof agent
- aluminium
- crack water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
A kind of take aluminium ground-slag, steel-making slag powder, slag, flyash etc. as the new concrete anti-crack water-proof agent-aluminium slag powder concrete anti-crack water-proof agent of starting material and a small amount of admixture, this material is prepared by each component of following weight percent: aluminium ground-slag 3 ~ 7 ‰, steel-making slag powder 10 ~ 30%, slag 20 ~ 70%, flyash 5 ~ 20%, admixture 1 ~ 3%, the weight percent sum of above each component is 100%.This anti-crack water-proof agent for concrete construction cost is low, maintenance is easier to, volume easily controls.
Description
Technical field
The present invention relates to the subsidiary material technical field of material of construction, be specifically related to a kind of anti-crack water-proof agent for concrete.
Background technology
Along with the quickening of urbanization process, people to building safety and reliability requirement more and more higher, concrete is main material of construction, and the performances such as concrete intensity and weather resistance directly affect structural quality, and the safety of structural quality and resident family and satisfaction closely bound up.Concrete is as heterogeneous hard brittle material; often there will be shrinkage cracking phenomenon; especially in reinforced concrete construction process; shrinking appears in concrete after setting and harden; owing to producing cracking phenomena by reinforced binding effect; have a strong impact on concrete weather resistance, in order to solve this phenomenon, people successively have employed adjustment mix proportion, interpolation sanforzing agent, swelling agent, fiber etc. and improve concrete resistance to cleavage.Anti-crack water-proof agent is used for, in cement concrete, playing shrinkage-compensating effect, preventing concrete cracking.But existing anti-crack water-proof agent needs when using to add swelling agent, fiber etc., and construction cost is high; Construction requirement as swelling agent needs just can be effective in wet condition, and higher to environmental requirement during construction, general construction environment is not easy to reach construction requirement, and concrete causes by this affects to shrink to be increased; Fiber is easily agglomerating in use and not easily stir, even if with the addition of enough amounts, is still difficult to get a desired effect, and the amount thinking to add fiber during construction increases the volume of fiber not, thus makes volume wayward, strength degradation.
summary of the invention:
The present invention is directed to the above-mentioned deficiency of prior art, provide that a kind of construction cost is low, maintenance is easier to, volume holds manageable anti-crack water-proof agent for concrete.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of take aluminium ground-slag, steel-making slag powder, slag, flyash etc. as the new concrete anti-crack water-proof agent-aluminium slag powder concrete anti-crack water-proof agent of starting material and a small amount of admixture, this material is prepared by each component of following weight percent: aluminium ground-slag 3 ~ 7 ‰, steel-making slag powder 10 ~ 30%, slag 20 ~ 70%, flyash 5 ~ 20%, admixture 1 ~ 3%, the weight percent sum of above each component is 100%.
In its moiety, the volume of aluminium ground-slag is 3 ~ 7 ‰, and the volume as aluminium ground-slag is less than 3 ‰, and cause expansion capacity of concrete inadequate, the volume as aluminium ground-slag is greater than 7 ‰, causes expansion capacity of concrete excessive and affects concrete performance; The volume of steel-making slag powder is 10 ~ 30%, and the volume as steel-making slag powder is greater than 30%, due to the existence of f-CaO in steel-making slag powder, causes expansion capacity of concrete excessive and affects concrete strength, and the excessive early age strength of concrete that also can make of steel-making slag powder volume declines.Volume as steel-making slag powder is less than 10%, causes expansion capacity of concrete inadequate; Fine slag contents is 20 ~ 70%, and in allowed band, the high slag that makes of fine slag contents is fully used, and reduces costs, if but exceed 70%, other composition incorporation reduces will affect anti-crack water-proof agent for concrete performance; Doping quantity of fly ash is 5 ~ 20%, and flyash plays water-reduction, compaction and homogeneous effect, and if doping quantity of fly ash is lower than 5%, concrete anticracking effect is poor, if doping quantity of fly ash is higher than 20%, can affect the intensity of concrete batching; If if admixture dosage is higher than 3%, increase not obvious to ground-slag, slag, flyash excitation, and cost can be too high.
As preferably, described steel-making slag powder f-CaO content 5% ~ 10%, f-CaO too high levels can affect concrete intensity, and in steel-making slag powder, f-CaO content is little on concrete performance impact while 5% ~ 10% plays expansion.
As preferably, described admixture is one or more in water glass, sodium sulfate, kaolin, Tai-Ace S 150, Calucium Silicate powder, white lime, trolamine, admixture can improve steel-making slag powder, slag, flyash and aluminium ground-slag aquation and chemical reaction ability as exciting agent, accelerate early response speed, wherein kaolin can play the effect regulating aluminium ground-slag foaming and intumescing degree, makes concrete be unlikely to expand excessive and affect concrete performance.
Described aluminium ground-slag be produce in Aluminum Electrolysis Production process after 100 DEG C of oven dry, grinding, obtain fineness ratio surface-area be greater than 350 ~ 500m containing aluminium solid waste
2the material of/kg, recycles containing aluminium solid waste, realizes alleviating enterprise's waste discharge burden, improves the ecological environment.
Advantage of the present invention and beneficial effect:
The present invention adopts steel-making slag powder, aluminium ground-slag plays double contraction compensating action, prevents Shrinkage Cracking of Concrete; Aluminium ground-slag plays concrete expansion effect as expansion sources, adopts admixture to improve steel-making slag powder, slag, flyash and aluminium ground-slag aquation and chemical reaction ability as exciting agent.
The anti-crack water-proof agent prepared can improve concrete resistance to cleavage, does not have large impact to concrete intensity, and compared with existing anti-crack water-proof agent, do not need to add swelling agent, fiber, construction cost is low, also more easily reaches construction requirement, and maintenance is easier to; Owing to not needing to add fiber, therefore the raw material such as aluminium ground-slag, steel-making slag powder, slag is easier to stir, and volume easily controls.
Embodiment
Below by embodiment, the present invention is described in further detail, but the present invention is not only confined to following examples.
Embodiment 1
Aluminium slag powder concrete anti-crack water-proof agent proportioning is aluminium ground-slag 3 ‰, steel-making slag powder 30%, slag 50%, flyash 17%, admixture 2.7%.
In concrete, mix 10% aluminium slag powder concrete anti-crack water-proof agent, concrete impervious grade is never mixed 6 of aluminium slag powder concrete anti-crack water-proof agent and is brought up to 10, and strength grade of concrete is constant.
Embodiment 2
Aluminium slag powder concrete anti-crack water-proof agent proportioning is aluminium ground-slag 7 ‰, steel-making slag powder 20%, slag 60%, flyash 17%, admixture 2.3%.
In concrete, mix 10% aluminium slag powder concrete anti-crack water-proof agent, concrete impervious grade is never mixed 6 of aluminium slag powder concrete anti-crack water-proof agent and is brought up to 12, and strength grade of concrete is constant.
Embodiment 3
Aluminium slag powder concrete anti-crack water-proof agent proportioning is aluminium ground-slag 5 ‰, steel-making slag powder 25%, slag 60%, flyash 12%, admixture 2.5%.
In concrete, mix 10% aluminium slag powder concrete anti-crack water-proof agent, concrete impervious grade is never mixed 6 of aluminium slag powder concrete anti-crack water-proof agent and is brought up to 8, and strength grade of concrete is constant.
Claims (1)
1. an anti-crack water-proof agent for concrete, is characterized in that: it is prepared by each component of following weight percent: aluminium ground-slag 3 ~ 7 ‰, steel-making slag powder 10 ~ 30%, slag 20 ~ 70%, flyash 5 ~ 20%, admixture 1 ~ 3%, the weight percent sum of above each component is 100%;
Described steel-making slag powder f-CaO content 5% ~ 10%;
Described admixture is one or more in water glass, sodium sulfate, kaolin, Tai-Ace S 150, Calucium Silicate powder, white lime, trolamine;
Described aluminium ground-slag be produce in Aluminum Electrolysis Production process after 100 DEG C of oven dry, grinding, obtain fineness ratio surface-area be greater than 350 ~ 500m containing aluminium solid waste
2the material of/kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210492156.7A CN102992672B (en) | 2012-11-28 | 2012-11-28 | Anti-crack water-proof agent for concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210492156.7A CN102992672B (en) | 2012-11-28 | 2012-11-28 | Anti-crack water-proof agent for concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102992672A CN102992672A (en) | 2013-03-27 |
| CN102992672B true CN102992672B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210492156.7A Expired - Fee Related CN102992672B (en) | 2012-11-28 | 2012-11-28 | Anti-crack water-proof agent for concrete |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466990B (en) * | 2013-09-06 | 2016-03-23 | 山东省建筑科学研究院 | A kind of based on freezing process pit shaft anti-crack water-proof agent for concrete |
| CN104496306A (en) * | 2014-12-08 | 2015-04-08 | 青阳县天工预拌商品砂浆有限公司 | Anti-crack concrete and preparation method thereof |
| CN104844266A (en) * | 2015-04-30 | 2015-08-19 | 马健 | High-cracking-resistance concrete curing agent |
| CN105254202A (en) * | 2015-09-24 | 2016-01-20 | 滁州京安工贸有限责任公司 | Chlorine-free concrete and mortar waterproof agent |
| CN106746844A (en) * | 2016-05-31 | 2017-05-31 | 徐月苗 | A kind of anti-crack water-proof agent for concrete and preparation method thereof |
| CN106116201A (en) * | 2016-06-23 | 2016-11-16 | 邓世凌 | A kind of concrete anticracking adulterating agent |
| CN106630740A (en) * | 2016-09-28 | 2017-05-10 | 四会市恒星智能科技有限公司 | Compound waterproofing agent for concrete and preparation method thereof |
| CN109095809B (en) * | 2018-08-16 | 2021-12-14 | 海南胜凯建材有限公司 | Expansion anti-cracking waterproof agent and application method thereof |
| CN113636776A (en) * | 2020-04-27 | 2021-11-12 | 彭立坚 | Efficient corrosion-resistant freeze-thaw-resistant waterproof agent |
| CN112646402A (en) * | 2020-12-07 | 2021-04-13 | 潍坊昌大建设集团有限公司 | Building roof waterproof agent with good waterproof effect and construction method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531452A (en) * | 2010-12-10 | 2012-07-04 | 苏笮斌 | Anti-corrosion anti-cracking reinforcing agent composition and preparation method thereof |
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- 2012-11-28 CN CN201210492156.7A patent/CN102992672B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531452A (en) * | 2010-12-10 | 2012-07-04 | 苏笮斌 | Anti-corrosion anti-cracking reinforcing agent composition and preparation method thereof |
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| CN102992672A (en) | 2013-03-27 |
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Granted publication date: 20160106 Termination date: 20161128 |