CN116606163A - Super-permeable concrete surface reinforcing agent and preparation method and application thereof - Google Patents
Super-permeable concrete surface reinforcing agent and preparation method and application thereof Download PDFInfo
- Publication number
- CN116606163A CN116606163A CN202310582753.7A CN202310582753A CN116606163A CN 116606163 A CN116606163 A CN 116606163A CN 202310582753 A CN202310582753 A CN 202310582753A CN 116606163 A CN116606163 A CN 116606163A
- Authority
- CN
- China
- Prior art keywords
- concrete surface
- super
- concrete
- nano
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012744 reinforcing agent Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000003623 enhancer Substances 0.000 claims abstract description 25
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 239000002270 dispersing agent Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 33
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 30
- 239000003638 chemical reducing agent Substances 0.000 claims description 18
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 16
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 16
- 229920005646 polycarboxylate Polymers 0.000 claims description 16
- -1 potassium fluorosilicates Chemical class 0.000 claims description 15
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 13
- 239000011777 magnesium Substances 0.000 claims description 13
- 229910052749 magnesium Inorganic materials 0.000 claims description 13
- 229940104869 fluorosilicate Drugs 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 235000012239 silicon dioxide Nutrition 0.000 claims description 12
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 11
- 239000005543 nano-size silicon particle Substances 0.000 claims description 11
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 10
- 239000011734 sodium Substances 0.000 claims description 10
- 229910052708 sodium Inorganic materials 0.000 claims description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 8
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 2
- 239000005642 Oleic acid Substances 0.000 claims description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 239000004568 cement Substances 0.000 abstract description 5
- 239000000499 gel Substances 0.000 abstract description 4
- 239000006227 byproduct Substances 0.000 abstract description 3
- 238000003763 carbonization Methods 0.000 abstract description 3
- 230000036571 hydration Effects 0.000 abstract description 3
- 238000006703 hydration reaction Methods 0.000 abstract description 3
- 239000012466 permeate Substances 0.000 abstract description 3
- 239000003153 chemical reaction reagent Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 8
- 230000002195 synergetic effect Effects 0.000 description 8
- 239000004615 ingredient Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 230000010220 ion permeability Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000009096 changqing Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/65—Coating or impregnation with inorganic materials
- C04B41/66—Fluorides, e.g. ocratation
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5035—Silica
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
The invention relates to a super-permeable concrete surface reinforcing agent, a preparation method and application thereof. The preparation raw materials of the super-permeable concrete surface reinforcing agent comprise dispersing agents, fluorosilicates, nano oxides, early strength agents and water. The super-permeable concrete surface reinforcing agent disclosed by the invention has a good permeation effect, and the chemical reaction generated by permeation to the concrete surface and concrete is milder and the action time is longer. The concrete surface enhancer disclosed by the invention is a multi-component chemical reagent, has small viscosity, can be coated or sprayed on the surface of concrete, can quickly permeate into the concrete, reacts with byproducts of cement hydration in the concrete to generate a large amount of gels, and can block capillary micropores in the concrete, so that the surface properties of the concrete such as compactness, compressive strength, hardness, wear resistance, air tightness, impermeability and carbonization resistance are improved.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a super-permeable concrete surface reinforcing agent, and a preparation method and application thereof.
Background
In recent years, along with the acceleration of urban construction process in China, building engineering is a focus of attention. At present, a certain problem exists in the application of the concrete construction technology in the construction process of a plurality of domestic building projects, a series of quality problems caused by the poor application of the concrete construction technology appear in succession after production and operation in a plurality of building projects, and the requirements of society on the quality of the building projects cannot be met. Under the condition, the construction unit actively takes effective measures to promote the overall level of the concrete construction technology in the construction process of the building engineering, so that the quality of the whole engineering can be kept up, further the expectations and the demands of people are met, and the development process of the construction of the building engineering project is promoted.
The surface treatment of concrete is a method capable of effectively improving the durability and service life of concrete. The main action principle is that the microscopic defects and pores of the concrete surface are blocked by using the fillers such as C-S-H gel, AFt, high molecular compounds and the like generated in the microscopic defects and pores of the concrete surface by utilizing the physical-chemical reaction between the surface treating agents or the physical-chemical reaction between the surface treating agents and the concrete surface, so that the microscopic structure of the concrete surface is smoother and denser. The silicate type and residual substances in the concrete can generate calcium silicate, but a large amount of silicon dioxide in the silicate can be rapidly hydrolyzed to form a film on the surface of the concrete, so that further infiltration of the silicate is prevented. The surface enhancers of the prior art are not very ideal.
The concrete surface reinforcing agent is divided into a single-component type and a multi-component type according to the reaction condition among the components in the concrete surface reinforcing agent. Because the single-component concrete surface reinforcing agent cannot be flexibly prepared according to the actual use environment, has complex components and uncontrollable reaction, the multi-component concrete surface reinforcing agent has great development potential at present, and the multi-component concrete surface reinforcing agent also gets the extensive attention of researchers in the field
Chinese patent CN111170765a discloses a multicomponent concrete surface enhancer, but the enhancer has poor permeability, which causes the concrete surface enhancer to be prone to be ineffective in the concrete part, so we propose a super-permeable concrete surface enhancer.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a super-permeable concrete surface reinforcing agent, and a preparation method and application thereof.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
in a first aspect, the invention provides a super-permeable concrete surface enhancer, wherein the super-permeable concrete surface enhancer is prepared from raw materials including a dispersing agent, fluorosilicate, nano-oxide, an early strength agent and water.
The super-permeable concrete surface reinforcing agent disclosed by the invention has a good permeation effect, and the chemical reaction generated by permeation to the concrete surface and concrete is milder and the action time is longer. The addition of the dispersing agent improves the dispersing effect and the penetrating effect of the concrete surface reinforcing agent. The addition of the fluorosilicate can effectively improve the durability of the concrete. The nano oxide can improve the strength, the wear resistance and the durability of the concrete. The early strength agent can also improve the strength of concrete.
The concrete surface enhancer is a multi-component chemical agent, has small viscosity, can be coated or sprayed on the surface of concrete, can quickly permeate into the concrete, reacts with byproducts of cement hydration in the concrete to generate a large amount of gels, and can block capillary micropores in the concrete, so that the surface properties of the concrete, such as compactness, compressive strength, hardness, wear resistance, air tightness, impermeability and carbonization resistance, are improved.
Preferably, the preparation raw materials of the super-permeable concrete surface reinforcing agent comprise, by mass, 6-12 parts of dispersing agents, 5-10 parts of fluorosilicates, 3-7 parts of nano oxides, 6-10 parts of early strength agents and water.
When combined in the above specific mass ratios, the effects of improving durability, wear resistance, compression resistance of the concrete surface can be maximized.
The mass parts of the dispersing agent may be 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts, 10.5 parts, 11 parts, 11.5 parts, 12 parts, etc., the mass parts of the fluorosilicate may be 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts, etc., the mass parts of the nano-oxide may be 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, etc., the mass parts of the early strength agent may be 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts, etc., and other specific point values within the above numerical ranges may be selected, and will not be described herein.
Preferably, the nano-oxide includes nano-silica, nano-alumina and nano-calcium carbonate.
The invention creatively discovers that nano silicon dioxide, nano aluminum oxide and nano calcium carbonate in the nano oxide have a certain synergistic effect in improving the durability, wear resistance and compressive strength of the concrete surface.
Preferably, the mass ratio of the nano silicon dioxide, the nano aluminum oxide and the nano calcium carbonate in the nano oxide is (1-2): 1.2-3.
Wherein, the specific point values in (1-2) can be 1, 1.5, 2, etc., the specific point values in (1.2-3) can be 1.2, 1.5, 1.8, 2, 2.5, 2.8, 3, etc., and other specific point values in the above numerical range can be selected, and the details are not repeated here.
When combined in the specific mass ratio relationship described above, the effects in terms of improving durability, wear resistance, compression resistance of the concrete surface can be maximized.
Preferably, the fluorosilicate comprises any one or a combination of at least two of magnesium fluorosilicate, sodium fluorosilicate or potassium fluorosilicate, preferably a combination of magnesium fluorosilicate and sodium fluorosilicate.
The magnesium fluosilicate and the sodium fluosilicate in the fluosilicate have a certain synergistic effect in effectively improving the durability of the concrete.
The fluorosilicate and the nano oxide also have a certain synergistic effect on the above effects.
Preferably, the mass ratio of magnesium fluosilicate to sodium fluosilicate in the fluosilicate is (1-2): 1-2, wherein specific point values in (1-2) can be selected from 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2 and the like, and other specific point values in the numerical range can be selected, so that the detailed description is omitted.
Preferably, the early strength agent comprises any one or a combination of at least two of triethanolamine, glycerol or diethanolamine.
The dispersing agent comprises any one or a combination of at least two of polycarboxylate water reducer, oleic acid, stearic acid or cetyltrimethylammonium bromide.
Preferably, the dispersant is a combination of a polycarboxylate water reducer and cetyltrimethylammonium bromide.
When the dispersing agent is the combination of the polycarboxylate water reducing agent and the cetyltrimethylammonium bromide, the effect of enhancing the permeability of the concrete surface enhancer is best, and the polycarboxylate water reducing agent and the cetyltrimethylammonium bromide have a certain synergistic effect.
Preferably, the mass ratio of the polycarboxylate water reducer to the cetyltrimethylammonium bromide in the dispersant is (1.5-2.5): 0.5-1.5, wherein specific point values in (1.5-2.5) can be selected from 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4, 2.5 and the like, and specific point values in (0.5-1.5) can be selected from 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3, 1.4, 1.5 and the like, and other specific point values in the numerical range can be selected, so that the details are not repeated.
In a second aspect, the present invention provides a method for preparing the super-permeable concrete surface enhancer according to the first aspect, the method comprising: mixing the dispersing agent with water, and sequentially adding fluorosilicate, nano oxide and early strength agent.
In a third aspect, the present invention provides the use of a super-permeable concrete surface enhancer according to the first aspect in concrete.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a concrete surface reinforcing agent. The concrete surface reinforcing agent not only has good penetration effect, but also has milder chemical reaction and longer action time when penetrating to the surface of the concrete. The concrete surface enhancer is a multi-component chemical agent, has small viscosity, can be coated or sprayed on the surface of concrete, can quickly permeate into the concrete, reacts with byproducts of cement hydration in the concrete to generate a large amount of gels, and can block capillary micropores in the concrete, so that the surface properties of the concrete, such as compactness, compressive strength, hardness, wear resistance, air tightness, impermeability and carbonization resistance, are improved.
Detailed Description
In order to further describe the technical means adopted by the present invention and the effects thereof, the following describes the technical scheme of the present invention in combination with the preferred embodiments of the present invention, but the present invention is not limited to the scope of the embodiments.
The sources of the functional components contained in the products related to the following examples and comparative examples are as follows (only the functional components are represented, and the necessary auxiliary materials contained in other commercial raw materials are not described in detail):
the polycarboxylate water reducer is derived from a polycarboxylate water reducer jm04 product with the trade name of Changqing New Material Co-Ltd in Guangzhou market;
the nano silicon dioxide is from a product with the trade name of nano silicon dioxide of 20 nanometers, which is purchased from Zhongzhi new materials company;
the nano alumina is obtained from a product with the trade name of nano alumina of 20 nanometers purchased from Zhongzhi new materials company;
the nano calcium carbonate is obtained from a product which is purchased from Yuanjiang chemical industry company and has the trade name of nano calcium carbonate.
Example 1
The embodiment provides a super-permeable concrete surface reinforcing agent, which comprises 9 parts of polycarboxylate water reducer, 4 parts of magnesium fluosilicate, 4 parts of sodium fluosilicate, 1.5 parts of nano silicon dioxide, 1.5 parts of nano aluminum oxide, 3 parts of nano calcium carbonate, 8 parts of triethanolamine and the balance of water in parts by mass.
The preparation method comprises the following steps:
and mixing the polycarboxylate water reducer with water, and sequentially adding magnesium fluosilicate, sodium fluosilicate, nano silicon dioxide, nano aluminum oxide, nano calcium carbonate and triethanolamine to obtain the water reducer.
Example 2
The embodiment provides a super-permeable concrete surface reinforcing agent, which comprises, by mass, 12 parts of a polycarboxylate water reducer, 2 parts of magnesium fluosilicate, 3 parts of sodium fluosilicate, 1 part of nano silicon dioxide, 1 part of nano aluminum oxide, 2 parts of nano calcium carbonate, 10 parts of glycerin and the balance of water.
The preparation method is described in example 1.
Example 3
The embodiment provides a super-permeable concrete surface reinforcing agent, which comprises 7 parts of polycarboxylate water reducer, 3 parts of magnesium fluosilicate, 2 parts of sodium fluosilicate, 2 parts of nano silicon dioxide, 2 parts of nano aluminum oxide, 3 parts of nano calcium carbonate, 7 parts of diethanolamine and the balance of water in parts by mass.
The preparation method is described in example 1.
Example 4
This example provides a super-permeable concrete surface enhancer that differs from example 1 only in that it does not contain magnesium fluorosilicate, its reduced mass is distributed over the mass of sodium fluorosilicate, and other ingredients and contents remain unchanged.
The preparation method is described in example 1.
Example 5
This example provides a super-permeable concrete surface enhancer which differs from example 1 only in that it does not contain sodium fluorosilicate, its reduced mass is distributed over the mass of magnesium fluorosilicate, and other ingredients and contents remain unchanged.
The preparation method is described in example 1.
Example 6
This example provides a super-permeable concrete surface enhancer which differs from example 1 only in that it does not contain nano alumina, its reduced mass is proportionally distributed over the mass of nano silica and nano calcium carbonate, the other ingredients and content remain unchanged.
The preparation method is described in example 1.
Example 7
This example provides a super-permeable concrete surface enhancer which differs from example 1 only in that it does not contain nanosilica, and its reduced mass is proportionally distributed over the mass of nanosilica and nanosilica carbonate, with the other ingredients and content remaining unchanged.
The preparation method is described in example 1.
Example 8
This example provides a super-permeable concrete surface enhancer which differs from example 1 only in that it does not contain nano calcium carbonate, its reduced mass is proportionally distributed over the mass of nano alumina and nano silica, and the other ingredients and contents remain unchanged.
The preparation method is described in example 1.
Example 9
The embodiment provides a super-permeable concrete surface reinforcing agent, which comprises, by mass, 6 parts of a polycarboxylate water reducer, 3 parts of cetyl trimethyl ammonium bromide, 4 parts of magnesium fluosilicate, 4 parts of sodium fluosilicate, 1.5 parts of nano silicon dioxide, 1.5 parts of nano aluminum oxide, 3 parts of nano calcium carbonate, 8 parts of triethanolamine and the balance of water.
The preparation method is described in example 1.
Example 10
The embodiment provides a super-permeable concrete surface reinforcing agent, which comprises 9 parts of hexadecyl trimethyl ammonium bromide, 4 parts of magnesium fluosilicate, 4 parts of sodium fluosilicate, 1.5 parts of nano silicon dioxide, 1.5 parts of nano aluminum oxide, 3 parts of nano calcium carbonate, 8 parts of triethanolamine and the balance of water in parts by mass.
The preparation method is described in example 1.
Comparative example 1
This comparative example provides a concrete surface enhancer which differs from example 1 only in that it does not contain magnesium and sodium fluorosilicates, and its reduced mass is apportioned to the mass of nanosilica, nanosilica and nanosilica, with the other ingredients and contents remaining unchanged.
The preparation method is described in example 1.
Comparative example 2
This comparative example provides a concrete surface enhancer which differs from example 1 only in that it does not contain nanosilica, nanosilica and nanosilica, and the reduced mass thereof is proportionally distributed over the mass of magnesium and sodium fluorosilicate, with the other ingredients and contents remaining unchanged.
The preparation method is described in example 1.
Test example 1
And (3) detecting the effect of the concrete surface reinforcing agent:
the concrete used is the same grade C40, and the concrete formula is as follows:
the conch PO42.5 cement is adopted, and the concrete mixing ratio is as follows: cement, fly ash, sand, stone, water=320:130:750:1160:175. The mixing amount of the water reducer is 0.15 percent (folded and fixed) of the cementing material.
Equivalent amounts of the super-permeable concrete surface enhancers described in examples 1-10 and comparative examples 1-2 were sprayed onto the surface of a concrete test piece, as follows:
rebound value: and (3) testing the rebound value of the 28d concrete test piece by referring to a standard method of JGJ/T23-2001, which is technical procedure for detecting the compressive strength of the concrete by a rebound method.
Durability test: concrete is cut into concrete test pieces with the diameter of 100mm and the height of 50mm, and the chloride ion permeability of the concrete is tested by referring to the standard GB/T50082-2009 Standard of test method for the long-term Performance and durability of common concrete. The chloride ion permeability indicates the rate of penetration of chloride ions into the concrete, expressed as the chloride ion diffusion coefficient.
Abrasion resistance test: the abrasion resistance means abrasion force which can be born when the material is abraded to a certain depth, and the larger the abrasion resistance value is, the better the abrasion resistance is. The test piece size was 100mm X100 mm, with reference to the standard GB/T16925-1997 method for testing the abrasion resistance of concrete and its products.
TABLE 1
| Group of | Rebound value (MPa) | Diffusion coefficient of chloride ion for 90 days (. Times.10) -12 m 2 /s) | Wear resistance |
| Example 1 | 48.2 | 1.323 | 4.3 |
| Example 2 | 44.8 | 1.426 | 4.1 |
| Example 3 | 45.2 | 1.534 | 4.0 |
| Example 4 | 46.3 | 1.398 | 4.1 |
| Example 5 | 47.1 | 1.403 | 3.9 |
| Example 6 | 46.3 | 1.426 | 3.7 |
| Example 7 | 47.6 | 1.468 | 3.5 |
| Example 8 | 45.9 | 1.501 | 3.3 |
| Example 9 | 50.3 | 1.245 | 4.6 |
| Example 10 | 48.5 | 1.301 | 4.4 |
| Comparative example 1 | 42.1 | 1.587 | 3.1 |
| Comparative example 2 | 43.2 | 1.602 | 3.2 |
As can be seen from the data in Table 1, the super-permeable concrete surface reinforcing agent provided by the invention has stronger compressive strength, durability and wear resistance. The invention creatively discovers that fluorosilicate and nano-oxide have a certain synergistic effect on the effects, sodium fluorosilicate and magnesium fluorosilicate in fluorosilicate have a certain synergistic effect, nano-silica, nano-alumina and nano-calcium carbonate in nano-oxide have a certain synergistic effect, the addition of the dispersing agent improves the permeability of the concrete surface enhancer, and the polycarboxylate water reducer and hexadecyl trimethyl ammonium bromide have a certain synergistic effect on the effects.
The applicant states that the present invention is illustrated by the above examples as a super-permeable concrete surface reinforcing agent, and a method of preparing and using the same, but the present invention is not limited to the above examples, i.e., it does not mean that the present invention must be practiced by relying on the above examples. It should be apparent to those skilled in the art that any modification of the present invention, equivalent substitution of raw materials for the product of the present invention, addition of auxiliary components, selection of specific modes, etc., falls within the scope of the present invention and the scope of disclosure.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Claims (10)
1. The super-permeable concrete surface reinforcing agent is characterized in that the preparation raw materials of the super-permeable concrete surface reinforcing agent comprise dispersing agents, fluorosilicate, nano oxides, early strength agents and water.
2. The super-permeable concrete surface enhancer of claim 1, wherein the preparation raw materials of the super-permeable concrete surface enhancer comprise, by mass, 6-12 parts of a dispersing agent, 5-10 parts of fluorosilicate, 3-7 parts of a nano oxide, 6-10 parts of an early strength agent and water.
3. The super permeable concrete surface reinforcing agent according to claim 1 or 2, wherein the nano oxide comprises nano silica, nano alumina and nano calcium carbonate;
preferably, the mass ratio of the nano silicon dioxide, the nano aluminum oxide and the nano calcium carbonate in the nano oxide is (1-2): 1.2-3.
4. A super permeable concrete surface strengthening agent according to any one of claims 1 to 3, wherein the fluorosilicate comprises any one or a combination of at least two of magnesium, sodium or potassium fluorosilicates, preferably magnesium, sodium fluorosilicates;
preferably, the mass ratio of the magnesium fluosilicate to the sodium fluosilicate in the fluosilicate is (1-2) to (1-2).
5. The super permeable concrete surface strengthening agent according to any one of claims 1 to 4, wherein the early strength agent comprises any one or a combination of at least two of triethanolamine, glycerol, or diethanolamine.
6. The super permeable concrete surface strengthening agent according to any one of claims 1 to 5, wherein the dispersant comprises any one or a combination of at least two of a polycarboxylate water reducing agent, oleic acid, stearic acid or cetyltrimethylammonium bromide.
7. The super permeable concrete surface strengthening agent according to any one of claims 1 to 6, wherein the dispersant is a combination of a polycarboxylate water reducing agent and cetyltrimethylammonium bromide.
8. The super permeable concrete surface reinforcing agent according to claim 7, wherein the mass ratio of the polycarboxylate water reducing agent to cetyltrimethylammonium bromide in the dispersing agent is (1.5-2.5) (0.5-1.5).
9. The method of preparing a super permeable concrete surface reinforcing agent according to any one of claims 1 to 8, comprising: mixing the dispersing agent with water, and sequentially adding fluorosilicate, nano oxide and early strength agent.
10. Use of the super permeable concrete surface enhancer according to any one of claims 1 to 8 in concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310582753.7A CN116606163A (en) | 2023-05-23 | 2023-05-23 | Super-permeable concrete surface reinforcing agent and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310582753.7A CN116606163A (en) | 2023-05-23 | 2023-05-23 | Super-permeable concrete surface reinforcing agent and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116606163A true CN116606163A (en) | 2023-08-18 |
Family
ID=87683110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310582753.7A Pending CN116606163A (en) | 2023-05-23 | 2023-05-23 | Super-permeable concrete surface reinforcing agent and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116606163A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117024177A (en) * | 2023-08-22 | 2023-11-10 | 日照弗尔曼新材料科技有限公司 | Surface reinforcing agent for concrete and preparation method thereof |
-
2023
- 2023-05-23 CN CN202310582753.7A patent/CN116606163A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117024177A (en) * | 2023-08-22 | 2023-11-10 | 日照弗尔曼新材料科技有限公司 | Surface reinforcing agent for concrete and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108059411B (en) | Steel fiber concrete containing regenerated micro powder | |
| CN111056776B (en) | High slump retaining recycled concrete and preparation method thereof | |
| CN112358224B (en) | Concrete glue reducing agent and preparation method and application thereof | |
| CN103145365A (en) | Concrete anti-cracking repairing agent and concrete applying the same | |
| CN104016617A (en) | A concrete reinforcing agent and a preparing method thereof | |
| CN113292280B (en) | Polyurethane composite light aggregate concrete and preparation method thereof | |
| CN116606163A (en) | Super-permeable concrete surface reinforcing agent and preparation method and application thereof | |
| CN110698102A (en) | Marine admixture | |
| CN112897954A (en) | High-elasticity-modulus ultrahigh-performance concrete and preparation method thereof | |
| CN114315214B (en) | Anti-crack concrete additive and preparation method thereof | |
| CN113501685B (en) | Regenerated concrete resistant to sulfate and chloride corrosion and preparation method thereof | |
| CN110590203A (en) | Marine engineering cementing material and preparation method thereof | |
| CN113185174B (en) | Steel slag activity excitant, active steel slag powder and application thereof | |
| CN111170765B (en) | Multi-component concrete surface reinforcing agent and reinforcing method thereof | |
| CN111606736B (en) | Concrete surface reinforcing agent and preparation and use methods thereof | |
| CN109133782A (en) | A kind of eco-cement base concrete enhancing coating and preparation method thereof | |
| CN112430005B (en) | Cement admixture for inhibiting alkali aggregate reaction and preparation method thereof | |
| CN109336457A (en) | A kind of concrete liquid macroimolecule contraction reducing type compacting agent | |
| CN110950566A (en) | High-corrosion-resistance submicron composite material and application thereof | |
| CN115093185A (en) | Antibacterial and corrosion-resistant concrete for profound pollution discharge and preparation method thereof | |
| CN108455934A (en) | A kind of anaerobic bacteria self-healing crackle concrete | |
| CN107746289B (en) | Preparation process of corrosion-resistant and freezing-resistant aerated brick | |
| CN115432952B (en) | Early-stage steel slag activity excitant and preparation method and application thereof | |
| CN113929385B (en) | Ultrahigh-strength concrete mixture with low shrinkage performance | |
| CN106986573B (en) | Metakaolin-phosphogypsum-based enhanced cement-based material shrinkage reducing agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |