CN105400249A - Dam concrete moisture retaining material for high altitude areas and preparation and application method of dam concrete moisture retaining material - Google Patents
Dam concrete moisture retaining material for high altitude areas and preparation and application method of dam concrete moisture retaining material Download PDFInfo
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- CN105400249A CN105400249A CN201510828611.XA CN201510828611A CN105400249A CN 105400249 A CN105400249 A CN 105400249A CN 201510828611 A CN201510828611 A CN 201510828611A CN 105400249 A CN105400249 A CN 105400249A
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- 239000000463 material Substances 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 22
- 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 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims abstract description 26
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 20
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims description 42
- 230000003020 moisturizing effect Effects 0.000 claims description 23
- 229960004418 trolamine Drugs 0.000 claims description 17
- BYGOPQKDHGXNCD-UHFFFAOYSA-N tripotassium;iron(3+);hexacyanide Chemical compound [K+].[K+].[K+].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] BYGOPQKDHGXNCD-UHFFFAOYSA-N 0.000 claims description 14
- 150000003926 acrylamides Chemical class 0.000 claims description 12
- 230000001680 brushing effect Effects 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- GNWBLLYJQXKPIP-ZOGIJGBBSA-N (1s,3as,3bs,5ar,9ar,9bs,11as)-n,n-diethyl-6,9a,11a-trimethyl-7-oxo-2,3,3a,3b,4,5,5a,8,9,9b,10,11-dodecahydro-1h-indeno[5,4-f]quinoline-1-carboxamide Chemical compound CN([C@@H]1CC2)C(=O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H](C(=O)N(CC)CC)[C@@]2(C)CC1 GNWBLLYJQXKPIP-ZOGIJGBBSA-N 0.000 claims description 7
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 6
- 239000004159 Potassium persulphate Substances 0.000 claims description 6
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical group [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
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000010526 radical polymerization reaction Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 239000003431 cross linking reagent Substances 0.000 abstract 1
- 238000009776 industrial production Methods 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
- -1 potassium ferricyanide Chemical compound 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 238000002156 mixing Methods 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
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002243 precursor Substances 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
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material 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
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a dam concrete surface moisture retaining material. The dam concrete surface moisture retaining material is characterized by comprising a component A and a component B in a mass ratio being (5-20): 1, wherein the component A comprises materials in parts by weight as follows: 60-94 parts of water, 3-20 parts of an acrylamide derivate, 3-20 parts of magnesium lithium silicate, 0.01-0.05 parts of triethanolamine and 0-0.03 parts of potassium ferricyanide; the component B comprises materials in parts by weight as follows: 90-98 parts of water and 2-10 parts of persulfate. The invention further discloses a preparation and application method of the dam concrete moisture retaining coating material for the high altitude areas. The raw material sources are wide, a free radical polymerization method is adopted for one-step synthesis, the technology is simple and convenient, and industrial production is facilitated; a natural inorganic magnesium lithium silicate nanosheet is taken as a cross-linking agent, and the material is non-toxic and environment-friendly and has better toughness; the material is directly painted or sprayed on the concrete surface and is cured in the natural environment, and the coating material with excellent mechanical properties is formed.
Description
Technical field
The present invention relates to concrete moisture retention conserving material field, refer to a kind of high altitude localities dam concrete material which can retain moisture especially, the invention still further relates to the preparation using method of this high altitude localities dam concrete material which can retain moisture.
Background technology
In recent years, China's hydroelectric development peak progressively to Tibet, Xinjiang, Yunnan, the transfer of the High Altitude in West China such as Qinghai area, but, environment due to High Altitude in West China area has the features such as dry, sunshine is strong, wind speed is high, air pressure is low, steam output is large, and dam concrete placement quality is greatly affected.In concreting process, part mixing water, from surface evaporation, lacks necessary moisture-keeping maintaining and concrete properties will be caused to reduce, as volume stability, compressive property, anti-permeability performance, freezing and thawing performance etc.Therefore, concrete can make concrete properties be developed in a healthy way under being early in suitable humidity environment the length of time.
Starting material, construction technology, concrete performance requriements are depended in the effective maintenance process of concrete, usually adopt curing agent, film, the wet method such as burlap, spray sprinkler carries out maintenance.Different maintenance processes has different features, wet burlap can ensure that whole concrete surface can obtain maintenance, but need a large amount of manpowers and fresh water to be in moisture state all the time to keep burlap, once form drying and watering cycle will cause Shrinkage Cracking of Concrete, serious reduction concrete surface performance; Film is not suitable for for the high environment of temperature, because film has regenerative effect, easily causing concrete internal temperature too high, very easily causing cracking because surface concrete temperature reduces too fast when removing film, and film wrinkle, make concrete surface become unfairness; Spray sprinkler can improve the relative humidity of concrete surface air, thus it is slack-off that concrete surface moisture is evaporated, but the cost of the method is higher, and needs sufficient fresh water and careful management.
Therefore, research and develop a kind of economical and practical, that there is good mechanical property and the performance that repeats dehydration water absorption course while there is good performance of keeping humidity high altitude localities dam concrete moisturizing coated material and seem very important.
Summary of the invention
The first object of the present invention is the weak point overcoming above-mentioned existing background technology, and provide a kind of economical and practical high altitude localities dam concrete moisturizing coated material, its performance that there is good mechanical property while there is good performance of keeping humidity and repeat dehydration water absorption course.
The second object of the present invention is to provide the preparation using method of this high altitude localities dam concrete moisturizing coated material.
The first object of the present invention is reached by following measure: a kind of dam concrete surface material which can retain moisture, it is characterized in that: be that 5 ~ 20 ︰ 1 form in mass ratio by A, B, wherein, A is made up of the derivative of the water of 60 ~ 94 weight parts, the acrylamide of 3 ~ 20 weight parts, the lithium magnesium silicate of 3 ~ 20 weight parts, the trolamine of 0.01 ~ 0.05 weight part, the Tripotassium iron hexacyanide of 0 ~ 0.03 weight part, and B is made up of the water of 90 ~ 98 weight parts and the persulphate of 2 ~ 10 weight parts.
Preferably, dam concrete surface material which can retain moisture is that 8 ~ 13 ︰ 1 form by A, B in mass ratio.
Further, the derivative of acrylamide Wei Dan ?Dan ?DMAA, Dan ?Yi Bing Ji ?acrylamide or both mixtures.
Further, lithium magnesium silicate is the lithium magnesium silicate of nano level sheet, and its maximum diameter is 30 ~ 50nm, and thickness is 2 ~ 5nm.
Further, persulphate is Potassium Persulphate, Sodium Persulfate or both mixtures.
The second object of the present invention is reached by following measure:
The preparation using method of above-mentioned dam concrete surface material which can retain moisture, comprises the steps:
1) preparation of A: take water, the derivative of acrylamide, lithium magnesium silicate, trolamine, the Tripotassium iron hexacyanide according to weight part, mix;
2) preparation of B: take water and persulphate according to weight part, mix;
3) by step 1) and step 2) in A, B mix in mass ratio, stir, obtain dam concrete surface material which can retain moisture;
4) by step 3) in gained mixture brushing or be sprayed at dam concrete surface, dam concrete surface forms thickness layer;
5) by step 4) described in thickness layer place 0.5 ~ 2h in atmosphere, namely dam concrete surface forms moisturizing coating.
Preferably, step 5) in, described moisturizing coat-thickness is 0.3 ~ 0.5cm.
The reaction principle of dam concrete moisturizing coated material provided by the invention is: first persulphate generates free radical under the effect of promotor trolamine, acrylamide triggered polymerization reaction take place generates polyacrylamide, itself and lithium magnesium silicate nanometer sheet are cross-linked, by non-covalent electrostatic interaction, form the mixture with three-dimensional net structure, by hydropexis in wherein, during dehydration, network structure is shunk, when keeping the skin wet, network structure absorbs moisture and recovers, and can absorb more moisture by swelling action.
The invention has the advantages that:
One, raw material sources of the present invention are extensive, and adopt radical polymerization one-step synthesis, simple process, is beneficial to suitability for industrialized production;
They are two years old, the present invention with the lithium magnesium silicate of natural nano level sheet for linking agent, substitute conventional organic bisacrylamide, lithium magnesium silicate forms three-dimensional net structure by organic polymer polyreaction, the gelinite formed can keep solid states, and simultaneously moisture can free exchange, repeats the process of dehydration water suction, realize the efficiency utilization asepsis environment-protecting of moisture, material has better toughness simultaneously;
Its three, A of the present invention, B component mixing after formed thick precursor, directly brush or be sprayed at concrete surface, solidifying in physical environment, formation excellent in mechanical performance coated material.
Accompanying drawing explanation
Fig. 1 is the transmission electron microscope picture of the dam concrete surface material which can retain moisture of the embodiment of the present invention 1;
Fig. 2 is Mechanics Performance Testing procedure chart and the test result graphic representation of the embodiment of the present invention 1 moisturizing coating;
Fig. 3 is that the embodiment of the present invention 1 dam concrete surface material which can retain moisture is coated on the contrast that concrete surface effect figure and concrete surface do not apply material which can retain moisture design sketch.
Embodiment
Describe performance of the present invention in detail below in conjunction with embodiment, but they do not form limitation of the invention, only for example.Simultaneously by illustrating that advantage of the present invention will become clearly and easy understand.
A kind of dam concrete surface material which can retain moisture, be that 5 ~ 20 ︰ 1 form in mass ratio by A, B, wherein, A is made up of the derivative of the water of 60 ~ 94 weight parts, the acrylamide of 3 ~ 20 weight parts, the lithium magnesium silicate of 3 ~ 20 weight parts, the trolamine of 0.01 ~ 0.05 weight part, the Tripotassium iron hexacyanide of 0 ~ 0.03 weight part, and B is made up of the water of 90 ~ 98 weight parts and the persulphate of 2 ~ 10 weight parts.
Preferably, dam concrete surface material which can retain moisture is that 8 ~ 13 ︰ 1 form by A, B in mass ratio.
Further, the derivative of acrylamide Wei Dan ?Dan ?DMAA, Dan ?Yi Bing Ji ?acrylamide or both mixtures.
Further, lithium magnesium silicate is the lithium magnesium silicate of nano level sheet, and its maximum diameter is 30 ~ 50nm, and thickness is 2 ~ 5nm.
Further, persulphate is Potassium Persulphate, Sodium Persulfate or both mixtures.
The second object of the present invention is reached by following measure:
The preparation using method of above-mentioned dam concrete surface material which can retain moisture, comprises the steps:
1) preparation of A: take water, the derivative of acrylamide, lithium magnesium silicate, trolamine, the Tripotassium iron hexacyanide according to weight part, mix;
2) preparation of B: take water and persulphate according to weight part, mix;
3) by step 1) and step 2) in A, B mix in mass ratio, stir, obtain dam concrete surface material which can retain moisture;
4) by step 3) in gained mixture brushing or be sprayed at dam concrete surface, dam concrete surface forms thickness layer;
5) by step 4) described in thickness layer place 0.5 ~ 2h in atmosphere, namely dam concrete surface forms moisturizing coating.
Preferably, step 5) in, described moisturizing coat-thickness is 0.3 ~ 0.5cm.
Embodiment 1
A kind of dam concrete surface material which can retain moisture, be that 5 ︰ 1 form in mass ratio by A, B, wherein, A is made up of the derivative of the water of 60 weight parts, the acrylamide of 3 weight parts, the lithium magnesium silicate of 15 weight parts, the trolamine of 0.05 weight part, the Tripotassium iron hexacyanide of 0.02 weight part, and B is made up of the water of 90 weight parts and the persulphate of 6 weight parts.The derivative Wei Dan of acrylamide ?Dan ?DMAA.Lithium magnesium silicate is the lithium magnesium silicate of nano level sheet, and its maximum diameter is 45nm, and thickness is 2nm.Persulphate is Potassium Persulphate.
The preparation using method of above-mentioned dam concrete surface material which can retain moisture, comprises the steps:
1) preparation of A: take water, the derivative of acrylamide, lithium magnesium silicate, trolamine, the Tripotassium iron hexacyanide according to weight part, mix;
2) preparation of B: take water and persulphate according to weight part, mix;
3) by step 1) and step 2) in A, B mix in mass ratio, stir, obtain dam concrete surface material which can retain moisture;
4) by step 3) in gained mixture brushing or be sprayed at dam concrete surface, dam concrete surface forms thickness layer;
5) by step 4) described in thickness layer place 0.5h in atmosphere, namely dam concrete surface forms moisturizing coating, and moisturizing coat-thickness is 0.3cm.
Embodiment 2
A kind of dam concrete surface material which can retain moisture, be that 20 ︰ 1 form in mass ratio by A, B, wherein, A is made up of the derivative of the water of 70 weight parts, the acrylamide of 5 weight parts, the lithium magnesium silicate of 5 weight parts, the trolamine of 0.03 weight part, the Tripotassium iron hexacyanide of 0.01 weight part, and B is made up of the water of 92 weight parts and the persulphate of 8 weight parts.The derivative Wei Dan of acrylamide ?Yi Bing Ji ?acrylamide.Lithium magnesium silicate is the lithium magnesium silicate of nano level sheet, and its maximum diameter is 35nm, and thickness is 4nm.Persulphate is Sodium Persulfate.
The preparation using method of above-mentioned dam concrete surface material which can retain moisture, comprises the steps:
1) preparation of A: take water, the derivative of acrylamide, lithium magnesium silicate, trolamine, the Tripotassium iron hexacyanide according to weight part, mix;
2) preparation of B: take water and persulphate according to weight part, mix;
3) by step 1) and step 2) in A, B mix in mass ratio, stir, obtain dam concrete surface material which can retain moisture;
4) by step 3) in gained mixture brushing or be sprayed at dam concrete surface, dam concrete surface forms thickness layer;
5) by step 4) described in thickness layer place 2h in atmosphere, namely dam concrete surface forms moisturizing coating, and moisturizing coat-thickness is 0.45cm.
Embodiment 3
A kind of dam concrete surface material which can retain moisture, be that 8 ︰ 1 form in mass ratio by A, B, wherein, A is made up of the derivative of the water of 80 weight parts, the acrylamide of 10 weight parts, the lithium magnesium silicate of 10 weight parts, the trolamine of 0.04 weight part, the Tripotassium iron hexacyanide of 0.03 weight part, and B is made up of the water of 93 weight parts and the persulphate of 2 weight parts.The derivative of acrylamide Wei Dan ?Dan ?DMAA, Dan ?Yi Bing Ji ?the mixture of acrylamide.Lithium magnesium silicate is the lithium magnesium silicate of nano level sheet, and its maximum diameter is 50nm, and thickness is 3nm.Persulphate is the mixture of Potassium Persulphate, Sodium Persulfate.
The preparation using method of above-mentioned dam concrete surface material which can retain moisture, comprises the steps:
1) preparation of A: take water, the derivative of acrylamide, lithium magnesium silicate, trolamine, the Tripotassium iron hexacyanide according to weight part, mix;
2) preparation of B: take water and persulphate according to weight part, mix;
3) by step 1) and step 2) in A, B mix in mass ratio, stir, obtain dam concrete surface material which can retain moisture;
4) by step 3) in gained mixture brushing or be sprayed at dam concrete surface, dam concrete surface forms thickness layer;
5) by step 4) described in thickness layer place 1h in atmosphere, namely dam concrete surface forms moisturizing coating, and moisturizing coat-thickness is 0.4cm.
Embodiment 4
A kind of dam concrete surface material which can retain moisture, be that 13 ︰ 1 form in mass ratio by A, B, wherein, A is made up of the derivative of the water of 90 weight parts, the acrylamide of 15 weight parts, the lithium magnesium silicate of 3 weight parts, the trolamine of 0.02 weight part, the Tripotassium iron hexacyanide of 0.01 weight part, and B is made up of the water of 98 weight parts and the persulphate of 10 weight parts.The derivative of acrylamide Wei Dan ?Dan ?DMAA, Dan ?Yi Bing Ji ?the mixture of acrylamide.Lithium magnesium silicate is the lithium magnesium silicate of nano level sheet, and its maximum diameter is 30nm, and thickness is 5nm.Persulphate is Potassium Persulphate.
The preparation using method of above-mentioned dam concrete surface material which can retain moisture, comprises the steps:
1) preparation of A: take water, the derivative of acrylamide, lithium magnesium silicate, trolamine, the Tripotassium iron hexacyanide according to weight part, mix;
2) preparation of B: take water and persulphate according to weight part, mix;
3) by step 1) and step 2) in A, B mix in mass ratio, stir, obtain dam concrete surface material which can retain moisture;
4) by step 3) in gained mixture brushing or be sprayed at dam concrete surface, dam concrete surface forms thickness layer;
5) by step 4) described in thickness layer place 1.5h in atmosphere, namely dam concrete surface forms moisturizing coating, and moisturizing coat-thickness is 0.35cm.
Embodiment 5
A kind of dam concrete surface material which can retain moisture, be that 10 ︰ 1 form in mass ratio by A, B, wherein, A is made up of the derivative of the water of 94 weight parts, the acrylamide of 20 weight parts, the lithium magnesium silicate of 20 weight parts, the trolamine of 0.01 weight part, and B is made up of the water of 95 weight parts and the persulphate of 5 weight parts.The derivative Wei Dan of acrylamide ?Dan ?DMAA.Lithium magnesium silicate is the lithium magnesium silicate of nano level sheet, and its maximum diameter is 38nm, and thickness is 3.5nm.Persulphate is Sodium Persulfate.
The preparation using method of above-mentioned dam concrete surface material which can retain moisture, comprises the steps:
1) preparation of A: take water, the derivative of acrylamide, lithium magnesium silicate, trolamine according to weight part, mix;
2) preparation of B: take water and persulphate according to weight part, mix;
3) by step 1) and step 2) in A, B mix in mass ratio, stir, obtain dam concrete surface material which can retain moisture;
4) by step 3) in gained mixture brushing or be sprayed at dam concrete surface, dam concrete surface forms thickness layer;
5) by step 4) described in thickness layer place 1.8h in atmosphere, namely dam concrete surface forms moisturizing coating, and moisturizing coat-thickness is 0.5cm.
It is the transmission electron microscope picture of the dam concrete surface material which can retain moisture of the embodiment of the present invention 1 as figure, Fig. 1; As can be seen from the figure: the lithium magnesium silicate of nano level sheet is scattered in gelling system equably as linking agent;
Fig. 2 is Mechanics Performance Testing procedure chart and the test result graphic representation of the embodiment of the present invention 1 moisturizing coating; As can be seen from the figure: moisturizing coating has excellent toughness, not broken under 90% deformation condition;
Fig. 3 is that the embodiment of the present invention 1 dam concrete surface material which can retain moisture is coated on the contrast that concrete surface effect figure and concrete surface do not apply material which can retain moisture design sketch.Wherein, do not apply material which can retain moisture design sketch on the left of Fig. 3 for concrete surface, right side is that the embodiment of the present invention 1 dam concrete surface material which can retain moisture is coated on concrete surface effect figure.As can be seen from the figure: coating can directly be painted on concrete substrate surface, and be translucent shape, need not maintenance especially, easy to use.
Other is prior art without the part described in detail.
Claims (7)
1. a dam concrete surface material which can retain moisture, it is characterized in that: be that 5 ~ 20 ︰ 1 form in mass ratio by A, B, wherein, described A is made up of the derivative of the water of 60 ~ 94 weight parts, the acrylamide of 3 ~ 20 weight parts, the lithium magnesium silicate of 3 ~ 20 weight parts, the trolamine of 0.01 ~ 0.05 weight part, the Tripotassium iron hexacyanide of 0 ~ 0.03 weight part, and described B is made up of the water of 90 ~ 98 weight parts and the persulphate of 2 ~ 10 weight parts.
2. dam concrete according to claim 1 surface material which can retain moisture, is characterized in that: be that 8 ~ 13 ︰ 1 form in mass ratio by A, B.
3. dam concrete according to claim 1 surface material which can retain moisture, is characterized in that: the derivative of described acrylamide Wei Dan ?Dan ?DMAA, Dan ?Yi Bing Ji ?acrylamide or both mixtures.
4. dam concrete surface according to claim 1 material which can retain moisture, it is characterized in that: described lithium magnesium silicate is the lithium magnesium silicate of nano level sheet, its maximum diameter is 30 ~ 50nm, and thickness is 2 ~ 5nm.
5. dam concrete surface according to claim 1 material which can retain moisture, is characterized in that: described persulphate is Potassium Persulphate, Sodium Persulfate or both mixtures.
6. the preparation using method of dam concrete surface according to claim 1 material which can retain moisture, is characterized in that: comprise the steps:
1) preparation of A: take water, the derivative of acrylamide, lithium magnesium silicate, trolamine, the Tripotassium iron hexacyanide according to weight part, mix;
2) preparation of B: take water and persulphate according to weight part, mix;
3) by step 1) and step 2) in A, B mix in mass ratio, stir, obtain dam concrete surface material which can retain moisture;
4) by step 3) in gained mixture brushing or be sprayed at dam concrete surface, dam concrete surface forms thickness layer;
5) by step 4) described in thickness layer place 0.5 ~ 2h in atmosphere, namely dam concrete surface forms moisturizing coating.
7. the preparation using method of dam concrete surface according to claim 6 material which can retain moisture, is characterized in that: described step 5) in, moisturizing coat-thickness is 0.3 ~ 0.5cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510828611.XA CN105400249B (en) | 2015-11-25 | 2015-11-25 | Dam concrete moisturizing material in high-altitude area and preparation and use method thereof |
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| CN201510828611.XA CN105400249B (en) | 2015-11-25 | 2015-11-25 | Dam concrete moisturizing material in high-altitude area and preparation and use method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CA2860049A1 (en) * | 2013-09-04 | 2015-03-04 | Rohm And Haas Company | A process for preparing color dispersions and the color dispersions made thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2860049A1 (en) * | 2013-09-04 | 2015-03-04 | Rohm And Haas Company | A process for preparing color dispersions and the color dispersions made thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张青松等: "不同种类水凝胶对结晶紫染料的吸附性能研究", 《材料工程》 * |
| 沈一丁: "《高分子表面活性剂》", 31 December 2002 * |
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