CN105293978B - A kind of concrete reinforcing aids - Google Patents
A kind of concrete reinforcing aids Download PDFInfo
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- CN105293978B CN105293978B CN201510690010.7A CN201510690010A CN105293978B CN 105293978 B CN105293978 B CN 105293978B CN 201510690010 A CN201510690010 A CN 201510690010A CN 105293978 B CN105293978 B CN 105293978B
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- 239000004567 concrete Substances 0.000 title claims abstract description 101
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 16
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 26
- 229920000570 polyether Polymers 0.000 claims abstract description 26
- 239000003999 initiator Substances 0.000 claims abstract description 18
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910001868 water Inorganic materials 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000178 monomer Substances 0.000 claims abstract description 9
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000006277 sulfonation reaction Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000004568 cement Substances 0.000 description 13
- 239000000654 additive Substances 0.000 description 12
- 230000000996 additive effect Effects 0.000 description 12
- 239000007788 liquid Substances 0.000 description 8
- 230000009967 tasteless effect Effects 0.000 description 8
- 231100000252 nontoxic Toxicity 0.000 description 7
- 230000003000 nontoxic effect Effects 0.000 description 7
- 239000011148 porous material Substances 0.000 description 7
- 238000011161 development Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000004574 high-performance concrete Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000010534 mechanism of action Effects 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a kind of new concrete reinforcing aids, it is prepared by following methods：Polyether macromonomer is added in water, sulfonate, heat up 60 degree, sulfonation half an hour, add initiator, acrylic monomers is added dropwise while stirring, time for adding was controlled at 0.5 1 hours, dripped constant temperature one hour, it is cooled to 45 degree, hydramine is added dropwise, time for adding was controlled at 0.5 1 hours, and it is finished product to drip off constant temperature one hour.The mass ratio of the sulfonate and polyether macromonomer is 1:3 3.5, the mass ratio of the initiator and polyether macromonomer is 1:2.5‑3.While the performance of concrete is integrally improved, it was found that specifically formula has extremely significantly, the effect of the unexpected outstanding anti-contracility energy for improving concrete.
Description
Technical field
The present invention relates to concrete additive technical field, especially a kind of concrete reinforcing aids.
Background technology
With the continuous progress of concrete technology, it is intended that concrete has more excellent performance, such as high intensity, senior engineer
The property made and and high-durability.In addition to common C10, C30, C40, the appearance of the high performance concrete of such as C60, C80 such as causes
Domestic and foreign scholars and the interest of engineer, and have been applied in nuclear power nuclear island, marine structure, skyscraper, overpass and prevent
Ooze in wall engineering.Domestic research and application to high-strength high-performance concrete is started late, but high-performance coagulation nearly ten years
The research and application development of soil are very fast, and new, efficient, complex function type concrete admixture continually develop also promotes
The development of high performance concrete.
Efficient additive is one of indispensable component of modern concrete.Since the initial stage sixties Japan and Germany should
Since, extensive development and application have been obtained in countries in the world, and has been turned into after armored concrete, prestressed concrete,
The third time of concrete technology breaks through.Using high efficiency water reducing agent except cement and the energy can be saved, speed of application and construction are improved
Quality, improve outside technique and working condition, it is often more important that concrete is obtained unprecedented high-performance.It can be said that do not have
There is efficient additive, just there is no high performance concrete.With the development of concrete works technology, concrete performance is proposed perhaps
More new requirement.As pump concrete requires high mobility；Winter construction requires high early strength；Skyscraper, ocean
Structural requirement is high-strength, high-durability.The realization of these performances is, it is necessary to using high performance additive.Because additive is to concrete
The improvement of technical performance, the ratio that it is applied in engineering is increasing, and many countries have been accounted for using the concrete for mixing additive
The 60%~90% of concrete total amount.Therefore, additive is also just increasingly becoming the 5th kind of composition in concrete.
Because general additive is present, volume is larger, water-reducing rate is not high enough, not very notable and cement the adaptation of enhancing effect
Property it is wideless, concrete slump loss is larger；Some toxic and harmful substances are especially used in process of production, existed
The shortcomings of being unfavorable for sustainable development, so as to partly constrain further popularization and application.Thus research and development performance function is answered
Mould assembly additive turns into the task of top priority, and research and development focus both domestic and external at present.
Compared with naphthalene system, melamine class additive, new and effective, complex function type concrete admixture the mechanism of action is
Difference, it has comb shaped molecular structure, multiple active groups is carried on main chain, and polarity is stronger, and side chain carries hydrophilic work
Property group.Main chain is adsorbed in cement particle surface, is separated cement particle and water by electrical charge rejection；Side chain to cement particle and
Water carries out space obstacle, reaches high water-reducing rate, and increases the glutinous poly- property of concrete, improves the homogeneity of concrete.Main chain
The additive retention property longer, side chain is shorter is better；The admixtures water-reducing ratio that main chain is shorter, side chain is longer is higher；During production
The viscosity requirement of different workability of concrete, retention property and concrete can be met by adjusting the length of main chain and side chain.
Because main chain does not cover on cement particle surface all, therefore unmasked portion can carry out aquation, with the increase of basicity, break
Be broken electrical charge rejection and space obstacle, cement can rapid aquation, so the existing longer workability of the additive of this type is protected
Performance is held, and does not influence the normal condensation of concrete.
Just because of its special mechanism of action, it can be greatly enhanced and efficiently control in the case of compared with low-dosage
The workability of concrete, concrete plasticizing can be kept the longer time, and concrete mixing image liquid-like is soft, in concrete
Poly- power is strong (do not isolate, disperse or bleeding), while can adjust setting time and air content as needed.Concrete after hardening
With high-strength, lower shrinkage, hypotonicity, there is preferable anti-carbonation and the concrete surface of chemical corrosion and uniformity.
In recent years, flourishing with China's real estate, ready-mixed concrete has also obtained very big development space, respectively
The concrete mixing plant quantity on ground is increasing, and this also increases the market competition of ready-mixed concrete manufacturing enterprise, specific mass, ratio
Price has been increasingly becoming common recognition in the industry.Studying data at home and abroad shows, under the environment of routine, it there are about 10% in concrete~
30% cement can not normally play effect, and this part can only play the cement of inserts effect, be in concrete application
Maximum cost wastes.Concrete reinforcing aids is exactly a kind of new concrete admixture, and its reactivity worth is extremely strong, incorporation
The interface zone to aggregate and cement slurry can be fully distributed in concrete, fully excites SiO2 and Al2O3 and water
Muddy water metaplasia into Ca (OH) 2 multiple aquation occurs, produce CSH gelinites, CSH gelinites is had more number than normal concrete
Times, so as to substantially increase the performances such as the intensity of concrete, durability.In the case where ensureing concrete combination property, volume
For the 0.6%~1.0% of binder materials, compared with normal concrete, cement consumption 12%~20% can be reduced.
The present invention is intended to provide a kind of new concrete reinforcing aids, this product is environmentally friendly colourless transparent liquid (tasteless, nothing
It is malicious, non-ignitable).The hard insoluble matter that this product can react generation can fill the pore blocked in concrete, increase in concrete
The compactness in portion improves the intensity and wearability of concrete.The regulation modification enhancing that this product belongs to cement-base concrete is multi-functional outer
Add agent kind, by introducing difference in functionality component, make binder materials fine dispersion in concrete and excite the reaction of mineralogical composition
Property, hydrated product crystalline mineral quantity is reduced, makes full use of the respond of admixture；The workability of concrete mortar is improved,
Optimised coagulation air in soil bubble structure is adjusted, concrete encapsulation substantially improves, and anti-bleeding capacity improves, and pumping frictional force reduces,
Partially viscous type cement concrete (such as high-grade concrete) can be gone to glue, low-grade concrete can also be viscosified, can be effectively
Ensure the intensity and durability of concrete.
The content of the invention
It is an object of the invention to provide provide a kind of new concrete reinforcing aids for base.
Technical scheme is as follows：
A kind of new concrete reinforcing aids, it is prepared by following methods：
Polyether macromonomer is added in water, sulfonate, is heated up 60 degree, sulfonation half an hour, initiator is added, drips while stirring
Add acrylic monomers, time for adding was controlled in 0.5-1 hours, dripped constant temperature one hour, was cooled to 45 degree, and hydramine, drop is added dropwise
Add time control in 0.5-1 hours, it is finished product to drip off constant temperature one hour.
The mass ratio of the sulfonate and polyether macromonomer is 1:3-3.5
The mass ratio of the initiator and polyether macromonomer is 1:2.5-3；
The key point of this product technique is：
1st, the ratio of the ratio of sulfonate and polyether macromonomer, initiator and polyether macromonomer
2nd, the time added after initiator, the length of time control is different, has considerable influence to the performance of product.
3rd, the time control during acrylic monomers is added dropwise, has large effect to the performance of product.
Environmentally friendly colourless transparent liquid (tasteless, nontoxic, non-ignitable) is made.
The present invention is advantageous in that：
Product is environmentally friendly colourless transparent liquid (tasteless, nontoxic, non-ignitable).The hard insoluble matter that this product can react generation can
Filling blocks the pore in concrete, and the compactness for increasing inside concrete improves the intensity and wearability of concrete.This product
The regulation for belonging to cement-base concrete is modified the multi-functional additive kind of enhancing, by introducing difference in functionality component, makes concrete
Middle binder materials fine dispersion simultaneously excites the reactivity of mineralogical composition, reduces hydrated product crystalline mineral quantity, makes full use of and mix
Close the respond of material；The workability of concrete mortar is improved, adjusts optimised coagulation air in soil bubble structure, concrete encapsulation is bright
Aobvious to improve, anti-bleeding capacity is improved, and pumping frictional force reduces, and partially viscous type cement concrete (such as high-grade concrete) can be gone
It is viscous.
Brief description of the drawings
Accompanying drawing 1 is process chart of the invention.
Embodiment
Embodiment 1：
Concrete reinforcing aids, it is prepared by following methods：
Polyether macromonomer is added in water, sulfonate, is heated up 60 degree, sulfonation half an hour, initiator is added, drips while stirring
Add acrylic monomers, time for adding was controlled at 0.5 hour, dripped constant temperature one hour, was cooled to 45 degree, and hydramine is added dropwise, and was added dropwise
For time control at 1 hour, it was finished product to drip off constant temperature one hour.
The mass ratio of the sulfonate and polyether macromonomer is 1:3,
The mass ratio of the initiator and polyether macromonomer is 1:3.
Environmentally friendly colourless transparent liquid (tasteless, nontoxic, non-ignitable) is made.
The hard insoluble matter that this product can react generation can fill the pore blocked in concrete, increase inside concrete
Compactness improve concrete intensity and wearability.Compression strength 40% and wearability 55%.The impervious of concrete can be improved
Ability is up to more than 30%.
Embodiment 2：
Concrete reinforcing aids, it is prepared by following methods：
Polyether macromonomer is added in water, sulfonate, is heated up 60 degree, sulfonation half an hour, initiator is added, drips while stirring
Add acrylic monomers, time for adding was controlled at 1 hour, dripped constant temperature one hour, was cooled to 45 degree, was added dropwise hydramine, during dropwise addition
Between control at 0.5 hour, it is finished product to drip off constant temperature one hour.
Environmentally friendly colourless transparent liquid (tasteless, nontoxic, non-ignitable) is made.
The mass ratio of the sulfonate and polyether macromonomer is 1:3.5
The mass ratio of the initiator and polyether macromonomer is 1:2.5.
The hard insoluble matter that this product can react generation can fill the pore blocked in concrete, increase inside concrete
Compactness improve concrete intensity and wearability.Compression strength 50% and wearability 40%.The impervious of concrete can be improved
Ability is up to more than 30%.
Embodiment 3：
Concrete reinforcing aids, it is prepared by following methods：
Polyether macromonomer is added in water, sulfonate, is heated up 60 degree, sulfonation half an hour, initiator is added, drips while stirring
Add acrylic monomers, time for adding was controlled at 0.6 hour, dripped constant temperature one hour, was cooled to 45 degree, and hydramine is added dropwise, and was added dropwise
For time control at 0.9 hour, it was finished product to drip off constant temperature one hour.
The mass ratio of the sulfonate and polyether macromonomer is 1:3.1
The mass ratio of the initiator and polyether macromonomer is 1:2.9.
Environmentally friendly colourless transparent liquid (tasteless, nontoxic, non-ignitable) is made.
The hard insoluble matter that this product can react generation can fill the pore blocked in concrete, increase inside concrete
Compactness improve concrete intensity and wearability.Compression strength 41% and wearability 54%.The impervious of concrete can be improved
Ability is up to more than 30%.
Embodiment 4：
Concrete reinforcing aids, it is prepared by following methods：
Polyether macromonomer is added in water, sulfonate, is heated up 60 degree, sulfonation half an hour, initiator is added, drips while stirring
Add acrylic monomers, time for adding was controlled at 0.9 hour, dripped constant temperature one hour, was cooled to 45 degree, and hydramine is added dropwise, and was added dropwise
For time control at 0.6 hour, it was finished product to drip off constant temperature one hour.
The mass ratio of the sulfonate and polyether macromonomer is 1:3.4
The mass ratio of the initiator and polyether macromonomer is 1:2.6.
Environmentally friendly colourless transparent liquid (tasteless, nontoxic, non-ignitable) is made.
The hard insoluble matter that this product can react generation can fill the pore blocked in concrete, increase inside concrete
Compactness improve concrete intensity and wearability.Compression strength 49% and wearability 41%.The impervious of concrete can be improved
Ability is up to more than 30%.
Embodiment 5：
Prepare concrete reinforcing aids：
Polyether macromonomer is added in water, sulfonate, is heated up 60 degree, sulfonation half an hour, initiator is added, is added dropwise while stirring
Acrylic monomers, time for adding were controlled at 1 hour, dripped constant temperature one hour, were cooled to 45 degree, and hydramine, time for adding is added dropwise
At 0.5 hour, it was finished product to drip off constant temperature one hour for control.
The proportion of the sulfonate and polyether macromonomer is 1:3.5
The proportion of the initiator and polyether macromonomer is 1:2.5；
Environmentally friendly colourless transparent liquid (tasteless, nontoxic, non-ignitable) is made.
The hard insoluble matter that this product can react generation can fill the pore blocked in concrete, increase inside concrete
Compactness improve concrete intensity and wearability.Compression strength 42% and wearability 53%.The impervious of concrete can be improved
Ability is up to more than 30%.
Embodiment 6：
Continue to carry out anti-freezing property test to concrete reinforcing aids made from embodiment 1-5 and shrinkage is surveyed
Examination, the concrete come is made according to the match ratio of addition content 0.5%, after curing age reaches 28 days, is followed by 200 freeze thawing
After ring, the mass loss rate and relative dynamic elastic modulus of concrete test block are tested, its result is such as shown in Table 1.
The inventors discovered that the improvement of unexpected anti-freezing property and shrinkage, as a result following Tables 1 and 2 institute
Show：
Table 1
| Proportioning numbering | Mass loss rate/% | Relative dynamic elastic modulus/% |
| Embodiment 1 | 1.5 | 76.5 |
| Embodiment 2 | 1.6 | 81.3 |
| Embodiment 3 | 1.3 | 80.3 |
| Embodiment 4 | 1.4 | 81.5 |
| Embodiment 5 | 0.5 | 98.1 |
| Benchmark (blank control) | 1.5 | 78.1 |
Table 2
It can be seen that concrete reinforcing aids of the invention can also integrally improve the anti-freezing property and shrinkage of concrete.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (1)
1. a kind of new concrete reinforcing aids, it is prepared by following methods：
Polyether macromonomer is added in water, sulfonate, is heated up 60 degree, sulfonation half an hour, initiator is added, third is added dropwise while stirring
Acrylic monomer, time for adding control drip constant temperature one hour in 0.5-1 hours, are cooled to 45 degree, are added dropwise hydramine, during dropwise addition
Between control in 0.5-1 hours, it is finished product to drip off constant temperature one hour；
The proportion of the sulfonate and polyether macromonomer is 1:3,
The proportion of the initiator and polyether macromonomer is 1:3；
After it is mixed in concrete according to 0.5% mass ratio, the shrinkage value * 10 of cement-630 days/ages were 108.
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| CN201510690010.7A CN105293978B (en) | 2015-10-22 | 2015-10-22 | A kind of concrete reinforcing aids |
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| CN201510690010.7A CN105293978B (en) | 2015-10-22 | 2015-10-22 | A kind of concrete reinforcing aids |
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| CN105293978B true CN105293978B (en) | 2018-02-27 |
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| CN110104985A (en) * | 2019-05-24 | 2019-08-09 | 山西桑穆斯建材化工有限公司 | A kind of wear-resisting water-reducing agent of HF type concrete impact-resistant |
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| CN101735411B (en) * | 2010-01-08 | 2011-08-10 | 北京工业大学 | Method for preparing sustained-release polycarboxylic water reducer |
| CN102391435B (en) * | 2011-10-09 | 2013-03-13 | 浙江五龙新材股份有限公司 | Slump-retaining polycarboxylic acid type water reducing agent and preparation method thereof |
| CN102815882B (en) * | 2012-08-03 | 2014-02-19 | 山西科腾环保科技有限公司 | High-performance water reducer of polycarboxylic acid, and preparation method thereof |
| CN102796234A (en) * | 2012-08-15 | 2012-11-28 | 聊城天成水泥科技研发有限公司 | Preparation method of high efficiency controllable polycarboxylic acids series cement grinding aid |
| CN103772624B (en) * | 2014-01-10 | 2016-04-27 | 陕西科技大学 | A kind of early-strength type polycarboxylate concrete dehydragent and preparation method thereof |
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Address after: 313000 Zhejiang city of Huzhou province Daixi shangqiang Industrial Park Patentee after: Huzhou Green Building Materials Development Co., Ltd. Address before: 313000 Guanbian Village, Dixi Town, Wuxing District, Huzhou City, Zhejiang Province Patentee before: HUZHOU GREEN BUILDING MATERIALS DEVELOPMENT CO., LTD. |
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Denomination of invention: A kind of concrete reinforcing agent Effective date of registration: 20210113 Granted publication date: 20180227 Pledgee: Daixi sub branch of Huzhou Wuxing Rural Commercial Bank Co.,Ltd. Pledgor: HUZHOU NEW GREEN MATERIAL Co.,Ltd. Registration number: Y2021330000035 |