CN105400249B - Dam concrete moisturizing material in high-altitude area and preparation and use method thereof - Google Patents
Dam concrete moisturizing material in high-altitude area and preparation and use method thereof Download PDFInfo
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- CN105400249B CN105400249B CN201510828611.XA CN201510828611A CN105400249B CN 105400249 B CN105400249 B CN 105400249B CN 201510828611 A CN201510828611 A CN 201510828611A CN 105400249 B CN105400249 B CN 105400249B
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- 230000003020 moisturizing effect Effects 0.000 title claims abstract description 66
- 239000000463 material Substances 0.000 title claims abstract description 60
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- IPGANOYOHAODGA-UHFFFAOYSA-N dilithium;dimagnesium;dioxido(oxo)silane Chemical compound [Li+].[Li+].[Mg+2].[Mg+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O IPGANOYOHAODGA-UHFFFAOYSA-N 0.000 claims abstract description 33
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims abstract description 24
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 17
- 150000003926 acrylamides Chemical class 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 238000000576 coating method Methods 0.000 claims abstract description 17
- -1 potassium ferricyanide Chemical compound 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims description 27
- 239000010410 layer Substances 0.000 claims description 19
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 10
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 9
- 230000001680 brushing effect Effects 0.000 claims description 8
- 239000011247 coating layer Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- NIGHVOJLIQEZBQ-UHFFFAOYSA-N C(C)(C)C(C(=O)N)=C.[N] Chemical compound C(C)(C)C(C(=O)N)=C.[N] NIGHVOJLIQEZBQ-UHFFFAOYSA-N 0.000 claims description 6
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 6
- 235000019394 potassium persulphate Nutrition 0.000 claims description 6
- FCYRHQNLKAYVOG-UHFFFAOYSA-N [Li].[Mg].[Si](O)(O)(O)O Chemical compound [Li].[Mg].[Si](O)(O)(O)O FCYRHQNLKAYVOG-UHFFFAOYSA-N 0.000 claims 1
- 150000001408 amides Chemical class 0.000 claims 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 239000003431 cross linking reagent Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000010526 radical polymerization reaction Methods 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 abstract 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052919 magnesium silicate Inorganic materials 0.000 abstract 1
- 235000019792 magnesium silicate Nutrition 0.000 abstract 1
- 239000000391 magnesium silicate Substances 0.000 abstract 1
- 239000002135 nanosheet Substances 0.000 abstract 1
- 231100000252 nontoxic Toxicity 0.000 abstract 1
- 230000003000 nontoxic effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- 239000011591 potassium Substances 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- GCICAPWZNUIIDV-UHFFFAOYSA-N lithium magnesium Chemical compound [Li].[Mg] GCICAPWZNUIIDV-UHFFFAOYSA-N 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012956 testing procedure Methods 0.000 description 2
- 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 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940031098 ethanolamine Drugs 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 150000004968 peroxymonosulfuric acids Chemical group 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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- Aftertreatments Of Artificial And Natural Stones (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a dam concrete surface moisturizing material, which is characterized in that: a, B, wherein A comprises 60-94 parts by weight of water, 3-20 parts by weight of acrylamide derivatives, 3-20 parts by weight of lithium magnesium silicate, 0.01-0.05 part by weight of triethanolamine and 0-0.03 part by weight of potassium ferricyanide, and B comprises 90-98 parts by weight of water and 2-10 parts by weight of persulfate. The invention also discloses a preparation and use method of the dam concrete moisturizing coating material in the high-altitude area. The invention has wide raw material sources, adopts one-step synthesis by a free radical polymerization method, has simple and convenient process and is beneficial to industrial production; the natural inorganic magnesium silicate lithium nanosheet is used as a cross-linking agent, so that the material is non-toxic and environment-friendly, and has better toughness; the coating material is directly brushed or sprayed on the surface of concrete and cured in natural environment to form a coating material with excellent mechanical property.
Description
Technical field
The present invention relates to concrete moisture retention conserving material fields, particularly relate to a kind of high altitude localities dam concrete moisturizing
Material, the invention further relates to the preparation application methods of this high altitude localities dam concrete moisturizing material.
Background technique
In recent years, hydroelectric development peak in China's is gradually shifted to the High Altitude in West China area such as Tibet, Xinjiang, Yunnan, Qinghai,
However, since the environment in High Altitude in West China area has the spies such as dry, sunshine is strong, wind speed is high, air pressure is low, evaporation capacity is big
Point, dam concrete placement quality are greatly affected.In concreting process, part mixing water is lacked from surface evaporation
Weary necessary moisture-keeping maintaining will will lead to the reduction of concrete properties, such as volume stability, compressive property, anti-permeability performance, resist
Freeze thawing performance etc..Therefore, concrete early age is under suitable humidity environment, and concrete properties may make to obtain health
Development.
The effective maintenance process of concrete depends on the performance requirement of raw material, construction technology, concrete, generallys use feeding
The methods of shield agent, film, wet burlap, spray sprinkler are conserved.Different maintenance processes has the characteristics that different, and wet burlap can
To guarantee that entire concrete surface can be conserved, but a large amount of manpower and fresh water are needed to keep burlap to be in wet always
State, drying and watering cycle will cause Shrinkage Cracking of Concrete once being formed, serious to reduce concrete surface performance；Film is not suitable for
The environment high for temperature be easy to cause concrete internal temperature excessively high, when removing film because film has regenerative effect
Easily because surface concrete temperature reduce it is too fast due to cause to crack, and film wrinkle, so that concrete surface becomes out-of-flatness；
Spray sprinkler can be improved the relative humidity of concrete surface air, to keep the evaporation of concrete surface moisture slack-off, but the party
The higher cost of method, and need sufficient fresh water and careful management.
Therefore, research and develop it is a kind of it is economical and practical, have while with good performance of keeping humidity preferable mechanical property and
The high altitude localities dam concrete moisturizing coating material for repeating the performance of dehydration water absorption course seems particularly important.
Summary of the invention
The first object of the present invention is to overcome the shortcoming of above-mentioned existing background technique, and provides a kind of economical and practical
High altitude localities dam concrete moisturizing coating material, while with good performance of keeping humidity have preferable mechanics
Performance and the performance for repeating dehydration water absorption course.
The preparation that the second object of the present invention is to provide this high altitude localities dam concrete moisturizing coating material uses
Method.
The first object of the present invention is reached by following measure: a kind of dam concrete surface moisturizing material,
Be characterized in that: being in mass ratio that 5~20 ︰ 1 are formed by A, B, wherein A by the water of 60~94 parts by weight, 3~20 parts by weight third
The derivative of acrylamide, the lithium magnesium silicate of 3~20 parts by weight, the triethanolamine of 0.01~0.05 parts by weight, 0~0.03 parts by weight
Potassium ferricyanide composition, B is made of the water of 90~98 parts by weight and the persulfate of 2~10 parts by weight.
Preferably, dam concrete surface moisturizing material is that 8~13 ︰ 1 are formed by A, B in mass ratio.
Further, the derivative of acrylamide be nitrogen-nitrogen-dimethylacrylamide, nitrogen-isopropyl-acrylamide or
The mixture of the two.
Further, lithium magnesium silicate is the lithium magnesium silicate of nanoscale sheet, and maximum gauge is 30~50nm, thickness
For 2~5nm.
Further, persulfate is the mixture of potassium peroxydisulfate, sodium peroxydisulfate or both.
The second object of the present invention is reached by following measure:
The preparation application method of above-mentioned dam concrete surface moisturizing material, includes the following steps:
1) water, the derivative of acrylamide, lithium magnesium silicate, triethanolamine, iron cyaniding the preparation of A: are weighed according to parts by weight
Potassium is uniformly mixed；
2) preparation of B: weighing water and persulfate according to parts by weight, is uniformly mixed；
3) A, B in step 1) and step 2) are mixed in mass ratio, stirs evenly, obtains dam concrete surface moisturizing material
Material；
4) by mixture brushing obtained in step 3) or it is sprayed at dam concrete surface, dam concrete surface is formed
Sticky layer；
5) sticky layer described in step 4) is placed into 0.5~2h in air, dam concrete surface forms moisturizing
Coating.
Preferably, in step 5), the moisturizing coating layer thickness is 0.3~0.5cm.
The reaction principle of dam concrete moisturizing coating material provided by the invention are as follows: persulfate is in promotor three first
Free radical is generated under the action of ethanol amine, causes acrylamide and polymerization reaction generation polyacrylamide occurs, with lithium magnesium silicate
Nanometer sheet crosslinking forms the compound with three-dimensional net structure by non-covalent electrostatic interaction, by hydropexis in wherein, loses
Network structure is shunk when water, and when keeping the skin wet, network structure absorbs moisture and restores, and can be absorbed by swelling action more
Moisture.
The present invention has the advantages that
First, raw material sources of the present invention are extensive, using radical polymerization one-step synthesis, simple process is conducive to industrialization
Production；
Second, the present invention using the lithium magnesium silicate of natural nanoscale sheet as crosslinking agent, substitutes common organic double third
Acrylamide, lithium magnesium silicate form three-dimensional net structure by organic polymer polymerization reaction, and the gelinite of formation is able to maintain solid
State form, at the same moisture can free exchange, repeat the process of dehydration water suction, realize the efficient using asepsis environment-protecting of moisture, together
When material have better toughness；
Third, forming thick predecessor after the mixing of A of the present invention, B component, concrete surface is directly brushed or is sprayed at,
It is cured in natural environment, forms the coating material of excellent in mechanical performance.
Detailed description of the invention
Fig. 1 is the transmission electron microscope picture of the dam concrete surface moisturizing material of the embodiment of the present invention 1；
Fig. 2 is the Mechanics Performance Testing procedure chart and test result curve graph of 1 moisturizing coating of the embodiment of the present invention；
Fig. 3 is that 1 dam concrete surface moisturizing material of the embodiment of the present invention is coated on concrete surface effect figure and coagulation
Native surface is not coated by the comparison of moisturizing material result figure.
Specific embodiment
Below with reference to the embodiment performance that the present invention will be described in detail, but they and do not constitute a limitation of the invention,
It is only for example.Simultaneously by illustrating that advantages of the present invention will become clearer and be readily appreciated that.
A kind of dam concrete surface moisturizing material is that 5~20 ︰ 1 are formed by A, B, wherein A is by 60~94 in mass ratio
The water of parts by weight, the derivative of the acrylamide of 3~20 parts by weight, the lithium magnesium silicate of 3~20 parts by weight, 0.01~0.05 weight
The triethanolamine of part, the potassium ferricyanide of 0~0.03 parts by weight form, and B is by the water of 90~98 parts by weight and the mistake of 2~10 parts by weight
Sulfate composition.
Preferably, dam concrete surface moisturizing material is that 8~13 ︰ 1 are formed by A, B in mass ratio.
Further, the derivative of acrylamide be nitrogen-nitrogen-dimethylacrylamide, nitrogen-isopropyl-acrylamide or
The mixture of the two.
Further, lithium magnesium silicate is the lithium magnesium silicate of nanoscale sheet, and maximum gauge is 30~50nm, thickness
For 2~5nm.
Further, persulfate is the mixture of potassium peroxydisulfate, sodium peroxydisulfate or both.
The second object of the present invention is reached by following measure:
The preparation application method of above-mentioned dam concrete surface moisturizing material, includes the following steps:
1) water, the derivative of acrylamide, lithium magnesium silicate, triethanolamine, iron cyaniding the preparation of A: are weighed according to parts by weight
Potassium is uniformly mixed；
2) preparation of B: weighing water and persulfate according to parts by weight, is uniformly mixed；
3) A, B in step 1) and step 2) are mixed in mass ratio, stirs evenly, obtains dam concrete surface moisturizing material
Material；
4) by mixture brushing obtained in step 3) or it is sprayed at dam concrete surface, dam concrete surface is formed
Sticky layer；
5) sticky layer described in step 4) is placed into 0.5~2h in air, dam concrete surface forms moisturizing
Coating.
Preferably, in step 5), the moisturizing coating layer thickness is 0.3~0.5cm.
Embodiment 1
A kind of dam concrete surface moisturizing material is that 5 ︰ 1 are formed by A, B, wherein A is by 60 parts by weight in mass ratio
Water, the derivative of the acrylamide of 3 parts by weight, the lithium magnesium silicate of 15 parts by weight, the triethanolamine of 0.05 parts by weight, 0.02 weight
The potassium ferricyanide composition of part, B are made of the water of 90 parts by weight and the persulfate of 6 parts by weight.The derivative of acrylamide is nitrogen-
Nitrogen-dimethylacrylamide.Lithium magnesium silicate of the lithium magnesium silicate for nanoscale sheet, maximum gauge 45nm, with a thickness of
2nm.Persulfate is potassium peroxydisulfate.
The preparation application method of above-mentioned dam concrete surface moisturizing material, includes the following steps:
1) water, the derivative of acrylamide, lithium magnesium silicate, triethanolamine, iron cyaniding the preparation of A: are weighed according to parts by weight
Potassium is uniformly mixed；
2) preparation of B: weighing water and persulfate according to parts by weight, is uniformly mixed；
3) A, B in step 1) and step 2) are mixed in mass ratio, stirs evenly, obtains dam concrete surface moisturizing material
Material；
4) by mixture brushing obtained in step 3) or it is sprayed at dam concrete surface, dam concrete surface is formed
Sticky layer；
5) sticky layer described in step 4) is placed into 0.5h in air, dam concrete surface forms moisturizing painting
Layer, moisturizing coating layer thickness are 0.3cm.
Embodiment 2
A kind of dam concrete surface moisturizing material is that 20 ︰ 1 are formed by A, B, wherein A is by 70 parts by weight in mass ratio
Water, the derivative of the acrylamide of 5 parts by weight, the lithium magnesium silicate of 5 parts by weight, the triethanolamine of 0.03 parts by weight, 0.01 weight
The potassium ferricyanide composition of part, B are made of the water of 92 parts by weight and the persulfate of 8 parts by weight.The derivative of acrylamide is nitrogen-
Isopropyl-acrylamide.Lithium magnesium silicate is the lithium magnesium silicate of nanoscale sheet, maximum gauge 35nm, with a thickness of 4nm.
Persulfate is sodium peroxydisulfate.
The preparation application method of above-mentioned dam concrete surface moisturizing material, includes the following steps:
1) water, the derivative of acrylamide, lithium magnesium silicate, triethanolamine, iron cyaniding the preparation of A: are weighed according to parts by weight
Potassium is uniformly mixed；
2) preparation of B: weighing water and persulfate according to parts by weight, is uniformly mixed；
3) A, B in step 1) and step 2) are mixed in mass ratio, stirs evenly, obtains dam concrete surface moisturizing material
Material；
4) by mixture brushing obtained in step 3) or it is sprayed at dam concrete surface, dam concrete surface is formed
Sticky layer；
5) sticky layer described in step 4) is placed into 2h in air, dam concrete surface forms moisturizing coating,
Moisturizing coating layer thickness is 0.45cm.
Embodiment 3
A kind of dam concrete surface moisturizing material is that 8 ︰ 1 are formed by A, B, wherein A is by 80 parts by weight in mass ratio
Water, the derivative of the acrylamide of 10 parts by weight, the lithium magnesium silicate of 10 parts by weight, the triethanolamine of 0.04 parts by weight, 0.03 weight
The potassium ferricyanide composition of part is measured, B is made of the water of 93 parts by weight and the persulfate of 2 parts by weight.The derivative of acrylamide is
Nitrogen-nitrogen-dimethylacrylamide, nitrogen-isopropyl-acrylamide mixture.Lithium magnesium silicate is the silicic acid of nanoscale sheet
Magnesium lithium, maximum gauge 50nm, with a thickness of 3nm.Persulfate is the mixture of potassium peroxydisulfate, sodium peroxydisulfate.
The preparation application method of above-mentioned dam concrete surface moisturizing material, includes the following steps:
1) water, the derivative of acrylamide, lithium magnesium silicate, triethanolamine, iron cyaniding the preparation of A: are weighed according to parts by weight
Potassium is uniformly mixed；
2) preparation of B: weighing water and persulfate according to parts by weight, is uniformly mixed；
3) A, B in step 1) and step 2) are mixed in mass ratio, stirs evenly, obtains dam concrete surface moisturizing material
Material；
4) by mixture brushing obtained in step 3) or it is sprayed at dam concrete surface, dam concrete surface is formed
Sticky layer；
5) sticky layer described in step 4) is placed into 1h in air, dam concrete surface forms moisturizing coating,
Moisturizing coating layer thickness is 0.4cm.
Embodiment 4
A kind of dam concrete surface moisturizing material is that 13 ︰ 1 are formed by A, B, wherein A is by 90 parts by weight in mass ratio
Water, the derivative of the acrylamide of 15 parts by weight, the lithium magnesium silicate of 3 parts by weight, the triethanolamine of 0.02 parts by weight, 0.01 weight
The potassium ferricyanide composition of part, B are made of the water of 98 parts by weight and the persulfate of 10 parts by weight.The derivative of acrylamide is
Nitrogen-nitrogen-dimethylacrylamide, nitrogen-isopropyl-acrylamide mixture.Lithium magnesium silicate is the silicic acid of nanoscale sheet
Magnesium lithium, maximum gauge 30nm, with a thickness of 5nm.Persulfate is potassium peroxydisulfate.
The preparation application method of above-mentioned dam concrete surface moisturizing material, includes the following steps:
1) water, the derivative of acrylamide, lithium magnesium silicate, triethanolamine, iron cyaniding the preparation of A: are weighed according to parts by weight
Potassium is uniformly mixed；
2) preparation of B: weighing water and persulfate according to parts by weight, is uniformly mixed；
3) A, B in step 1) and step 2) are mixed in mass ratio, stirs evenly, obtains dam concrete surface moisturizing material
Material；
4) by mixture brushing obtained in step 3) or it is sprayed at dam concrete surface, dam concrete surface is formed
Sticky layer；
5) sticky layer described in step 4) is placed into 1.5h in air, dam concrete surface forms moisturizing painting
Layer, moisturizing coating layer thickness are 0.35cm.
Embodiment 5
A kind of dam concrete surface moisturizing material is that 10 ︰ 1 are formed by A, B, wherein A is by 94 parts by weight in mass ratio
Water, the derivative of the acrylamide of 20 parts by weight, the lithium magnesium silicate of 20 parts by weight, 0.01 parts by weight triethanolamine composition, B by
The water of 95 parts by weight and the persulfate of 5 parts by weight composition.The derivative of acrylamide is nitrogen-nitrogen-dimethylacrylamide.Silicon
Sour magnesium lithium is the lithium magnesium silicate of nanoscale sheet, maximum gauge 38nm, with a thickness of 3.5nm.Persulfate is persulfuric acid
Sodium.
The preparation application method of above-mentioned dam concrete surface moisturizing material, includes the following steps:
1) preparation of A: water, the derivative of acrylamide, lithium magnesium silicate, triethanolamine are weighed according to parts by weight, mixing is equal
It is even；
2) preparation of B: weighing water and persulfate according to parts by weight, is uniformly mixed；
3) A, B in step 1) and step 2) are mixed in mass ratio, stirs evenly, obtains dam concrete surface moisturizing material
Material；
4) by mixture brushing obtained in step 3) or it is sprayed at dam concrete surface, dam concrete surface is formed
Sticky layer；
5) sticky layer described in step 4) is placed into 1.8h in air, dam concrete surface forms moisturizing painting
Layer, moisturizing coating layer thickness are 0.5cm.
Such as figure, Fig. 1 is the transmission electron microscope picture of the dam concrete surface moisturizing material of the embodiment of the present invention 1；It can from figure
To find out: the lithium magnesium silicate of nanoscale sheet is homogeneously dispersed in gel rubber system as crosslinking agent；
Fig. 2 is the Mechanics Performance Testing procedure chart and test result curve graph of 1 moisturizing coating of the embodiment of the present invention；From figure
It can be seen that moisturizing coating has excellent toughness, it is not crushed under 90% deformation condition；
Fig. 3 is that 1 dam concrete surface moisturizing material of the embodiment of the present invention is coated on concrete surface effect figure and coagulation
Native surface is not coated by the comparison of moisturizing material result figure.It wherein, is that concrete surface is not coated by moisturizing material result on the left of Fig. 3
Figure, right side are that 1 dam concrete surface moisturizing material of the embodiment of the present invention is coated on concrete surface effect figure.It can be with from figure
Find out: coating can directly be painted on concrete substrate surface, and be translucent shape, easy to use without special maintenance.
Other parts not being described in detail are the prior art.
Claims (5)
1. high altitude localities dam concrete surface moisturizing material, it is characterised in that: it is in mass ratio that 8~13 ︰ 1 are formed by A, B,
Wherein, the A by the water of 60~94 parts by weight, the derivative of the acrylamide of 3~15 parts by weight, 3~20 parts by weight silicic acid
Magnesium lithium, the triethanolamine of 0.01~0.05 parts by weight, 0.01~0.03 parts by weight the potassium ferricyanide composition, the B is by 90~98
The water of parts by weight and the persulfate of 2~10 parts by weight composition, the lithium magnesium silicate are the lithium magnesium silicate of nanoscale sheet,
Maximum gauge is 30~50nm, with a thickness of 2~5nm.
2. high altitude localities dam concrete according to claim 1 surface moisturizing material, it is characterised in that: the propylene
The derivative of amide is the mixture of nitrogen-nitrogen-dimethylacrylamide, nitrogen-isopropyl-acrylamide or both.
3. high altitude localities dam concrete according to claim 1 surface moisturizing material, it is characterised in that: the over cure
Hydrochlorate is the mixture of potassium peroxydisulfate, sodium peroxydisulfate or both.
4. the preparation application method of high altitude localities dam concrete according to claim 1 surface moisturizing material, special
Sign is: including the following steps:
1) preparation of A: weighing water, the derivative of acrylamide, lithium magnesium silicate, triethanolamine, the potassium ferricyanide according to parts by weight, mixes
It closes uniform；
2) preparation of B: weighing water and persulfate according to parts by weight, is uniformly mixed；
3) A, B in step 1) and step 2) are mixed in mass ratio, stirs evenly, obtains dam concrete surface moisturizing material；
4) by mixture brushing obtained in step 3) or it is sprayed at dam concrete surface, dam concrete surface forms sticky
Layer；
5) sticky layer described in step 4) is placed into 0.5~2h in air, dam concrete surface forms moisturizing coating.
5. the preparation application method of high altitude localities dam concrete according to claim 4 surface moisturizing material, special
Sign is: in the step 5), moisturizing coating layer thickness is 0.3~0.5cm.
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| 不同种类水凝胶对结晶紫染料的吸附性能研究;张青松等;《材料工程》;20111231(第12期);第20-24页 * |
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