CN109762428B - Waterproof coating for garden roads and construction method thereof - Google Patents
Waterproof coating for garden roads and construction method thereof Download PDFInfo
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Abstract
The invention discloses a waterproof coating for garden roads, which comprises a liquid material and a powder material, wherein the mass ratio of the liquid material to the powder material is (0.8-1.2): 1; the liquid material comprises the following components in parts by weight: 80-85 parts of waterproof emulsion, 0.5-0.8 part of defoaming agent, 1-2 parts of dispersing agent, 6-8 parts of film-forming assistant, 2-3 parts of flatting agent, 20-25 parts of water and 0.4-0.6 part of preservative; the powder comprises the following components in parts by weight: 40-50 parts of cement, 15-20 parts of quartz powder, 15-20 parts of carborundum, 3-7 parts of organic montmorillonite and 6-8 parts of tourmaline powder. The waterproof coating has the advantages of high bonding strength, high weather resistance, good waterproofness, easy construction, no toxicity, no harm and the like. Meanwhile, the film layer has the characteristics of water resistance and ventilation, so that the tourmaline powder can contact with air to release a large amount of negative ions beneficial to the health of a human body, and the negative ions can be degraded after being combined with pollutants in the air, so that the air quality is improved, and the environment is protected.
Description
Technical Field
The invention relates to garden bridge deck waterproofing, in particular to a waterproof coating for garden roads and a construction method thereof.
Background
Garden roads are roads and bridges which are built in garden landscape and are used for people to pass through, and the bridges comprise wood bridges, stone bridges, reinforced concrete bridges and the like. The wood bridge and the reinforced concrete bridge are required to be subjected to waterproof treatment after being built, troubles of wood decay and steel bar rusting are avoided, the service life of the bridge is prolonged, and the waterproof treatment mode is achieved by brushing waterproof paint.
Chinese patent with publication number CN106634603B discloses a bridge deck waterproof coating, which comprises the following components in parts by weight: 3-20 parts of aeolian sand, 5-16 parts of No. 90 petroleum asphalt, 5-10 parts of nano titanium dioxide, 5-10 parts of purple sand, 5-10 parts of light calcium carbonate, 1-5 parts of KH-560, 1-5 parts of KH-550, 5-10 parts of epoxy end-capped polyether amine, 8-10 parts of beta-cyclodextrin modified amino end-capped sulfonated polybenzimidazole, 4-6 parts of 1,4,5, 8-naphthalene tetracarboxylic anhydride, 1-4 parts of 8-naphthylamine-1-sulfonic acid, 3-5 parts of 1, 5-naphthalene disulfonic acid, 5-10 parts of dodecanedioic acid, 20-50 parts of dimethyl sulfoxide and 50-100 parts of deionized water.
The waterproof coating can be used for bridge deck waterproof treatment, but the main waterproof substance asphalt has certain toxicity, can release benzene toxic gas to cause air pollution, is easy to influence green plant growth, is not suitable for gardens needing fresh air, and needs to be improved.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide the waterproof coating for the garden road, which is environment-friendly and pollution-free and has good waterproof effect.
In order to achieve the purpose, the invention provides the following technical scheme:
a waterproof coating for garden roads comprises a liquid material and a powder material, wherein the mass ratio of the liquid material to the powder material is (0.8-1.2): 1;
the liquid material comprises the following components in parts by weight:
80-85 parts of waterproof emulsion
0.5 to 0.8 portion of defoaming agent
1-2 parts of dispersant
6-8 parts of film-forming additive
2-3 parts of flatting agent
20-25 parts of water
0.4-0.6 part of preservative;
the powder comprises the following components in parts by weight:
40-50 parts of cement
15-20 parts of quartz powder
15-20 parts of carborundum
3-7 parts of organic montmorillonite
6-8 parts of tourmaline powder;
the preparation method of the waterproof emulsion comprises the following steps:
firstly, mixing perfluoroalkyl ethyl acrylate, octadecyl methacrylate, hydroxypropyl acrylate and p-chloromethyl styrene according to equal mass ratio and uniformly stirring to obtain a mixed solution;
mixing 5-7 parts of emulsifier and 30-40 parts of water by weight, heating to 75-80 ℃, preserving heat, introducing nitrogen for protection for 10-20min, adding 40-50 parts of mixed solution and 0.8-1 part of ammonium persulfate, and reacting for 1-2 h;
and step three, simultaneously dropwise adding 40-50 parts of mixed solution and 0.8-1 part of ammonium persulfate, controlling the charging to be completed within 2-3h, finally reacting for 3-4h at the temperature of 75-85 ℃, cooling and discharging to obtain the waterproof emulsion.
By adopting the technical scheme, the powder is used for rigid waterproofing, and has stronger bonding tightness and good durability with a concrete structure; the liquid material is used for flexible waterproofing and has good waterproof performance. The two materials are mixed and coated on the bridge deck, and a layer of uniform and elastic coating film is formed through hydration reaction of cement and water volatilization of emulsion, has the advantages of both materials, and has the advantages of high bonding strength, high weather resistance, good waterproofness, easy construction, no toxicity, no harm and the like.
The waterproof emulsion structure molecules contain a large amount of benzene ring structures, fluorine and chlorine, after the waterproof emulsion structure molecules form a film layer, fluorine elements migrate to the surface of the film layer to improve the surface water repellency, so that the waterproof performance is improved, and chlorine elements are distributed on the surface of a base layer to improve the bonding strength between the film layer and the base layer. Meanwhile, the film layer has the characteristics of water resistance and ventilation, so that the tourmaline powder can contact with air to release a large amount of negative ions beneficial to the health of a human body, and the negative ions can be degraded after being combined with pollutants in the air, so that the air quality is improved, and the environment is protected.
The organic montmorillonite can improve the waterproof performance of the coating due to the sheet structure; the tourmaline powder can release negative ions which are beneficial to environmental protection, and can also be used as an ultrafine filler to improve the compactness of a film layer, thereby improving the waterproof performance.
The invention is further configured to: the emulsifier comprises OBS, SDS and OP-10, and the mass ratio of the OBS to the SDS to the OP-10 is 2:1: 2.
By adopting the technical scheme, the three components have a synergistic interaction effect, the emulsifying effect is good, and the generated waterproof emulsion is stable, high in solid content and good in waterproof performance.
The invention is further configured to: the powder material also comprises 8-10 parts of nano titanium dioxide.
By adopting the technical scheme, on one hand, the nano titanium dioxide can promote tourmaline powder to release more negative ions, on the other hand, the nano titanium dioxide can be used as a filler, the drying time, the ageing resistance, the corrosion resistance, the water resistance, the bonding strength and other properties of the film layer can be improved, and after the nano titanium dioxide is compounded with the waterproof emulsion, the binary coarse structure formed by the hydrophobic groups on the surface of the film layer and the nano titanium dioxide is enabled to have excellent waterproof property and self-cleaning property by applying the bionics principle.
The invention is further configured to: the defoaming agent is polydimethylsiloxane.
By adopting the technical scheme, the dimethyl silicone polymer has good defoaming effect on the waterproof emulsion, and is favorable for improving the bonding strength of the film layer.
The invention is further configured to: the dispersant is sodium polyacrylate.
By adopting the technical scheme, the sodium polyacrylate has a good dispersion effect on powder, and is beneficial to improving the waterproof effect and the release amount of negative ions.
The invention is further configured to: the film-forming assistant is compounded by dipropylene glycol methyl ether and dipropylene glycol butyl ether in a mass ratio of 1: 1.
By adopting the technical scheme, the film forming speed is improved and the forming quality is good.
The invention is further configured to: the powder material also comprises 3-5 parts of active hollow carbon fiber.
By adopting the technical scheme, on one hand, the active hollow carbon fiber is used as a filler, so that the mechanical property of the film layer is improved; on the other hand, the tourmaline negative ion film has adsorbability, can adsorb pollutants and be matched with negative ion degradation treatment, and meanwhile, the hollow structure of the tourmaline negative ion film is beneficial to improving the air permeability of the film layer without influencing the waterproofness, so that the release amount of the tourmaline negative ions is improved.
The invention also aims to provide a construction method of the waterproof coating for the garden road.
A construction method of waterproof paint for garden roads comprises the following steps:
preparation of S1 liquid material: weighing the components of the liquid material according to the required parts of the formula, mixing and stirring uniformly;
s2 powder preparation: weighing the components of the powder according to the required parts of the formula, mixing and stirring uniformly;
s3 preparation of the coating: mixing the liquid material and the powder material and stirring uniformly;
s4 brushing: after the base layer is treated, the coating is brushed for three times, so that the thickness of a dry film of the coating is 1.8-2.0 mm.
In conclusion, the invention has the following beneficial effects:
1. the waterproof coating has the advantages of high bonding strength, high weather resistance, good waterproofness, easy construction, no toxicity, no harm and the like;
2. compared with the silicone-acrylic emulsion and the styrene-acrylic emulsion which are popular in the market, the waterproof emulsion has more excellent waterproof performance and certain air permeability;
3. the compounding of the active hollow carbon fiber and the tourmaline powder can release a large amount of negative ions, so that pollutants in the air can be removed, and the environment protection and the human health are facilitated.
Drawings
Fig. 1 is a schematic flow chart of the first to third embodiments.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
a waterproof coating for garden roads is suitable for concrete structure bridges in gardens and is prepared by mixing liquid materials and powder materials, wherein the mass ratio of the liquid materials to the powder materials is 0.8: 1.
The liquid material comprises the following components in parts by weight:
80 parts of waterproof emulsion;
0.5 part of polydimethylsiloxane;
1 part of sodium polyacrylate;
6 parts of a film-forming assistant, wherein the film-forming assistant is formed by compounding dipropylene glycol methyl ether and dipropylene glycol butyl ether in a mass ratio of 1: 1;
leveling agent 2 parts, model BYK-333, purchased from Bike chemical company, Germany;
20 parts of water;
0.4 part of preservative, the model is ZB-101, and the preservative is purchased from Jinan, China and North Fine chemical Co.
The powder comprises the following components in parts by weight:
42.5R 40 parts of Portland cement;
15 parts of quartz powder;
15 parts of carborundum;
3 parts of organic montmorillonite, which is purchased from a Ganghou Xinyeli mineral processing factory;
6 parts of tourmaline powder, 1250 meshes;
8 parts of nano titanium dioxide, and the particle size is 20 nm;
3 parts of activated hollow carbon fiber, ACHF, was purchased from Toray Japan.
The preparation method of the waterproof emulsion comprises the following steps:
firstly, mixing perfluoroalkyl ethyl acrylate, octadecyl methacrylate, hydroxypropyl acrylate and p-chloromethyl styrene according to equal mass ratio and uniformly stirring to obtain a mixed solution;
mixing 5 parts of emulsifier and 30 parts of water by weight, heating to 75 ℃, keeping the temperature, introducing nitrogen for protection for 10min, adding 40 parts of mixed solution and 0.8 part of ammonium persulfate, and reacting for 1 h;
and step three, simultaneously dropwise adding 40 parts of mixed solution and 0.8 part of ammonium persulfate, controlling the materials to be added within 2 hours, finally reacting for 3 hours at the temperature of 75 ℃, cooling and discharging to obtain the waterproof emulsion.
The emulsifier comprises OBS, SDS and OP-10, and the mass ratio of the OBS to the SDS to the OP-10 is 2:1: 2. OBS is sodium perfluorononenoxybenzenesulfonate; SDS, i.e., sodium dodecyl sulfate; OP-10 is alkylphenol ethoxylates.
A construction method of a waterproof paint for garden roads, as shown in fig. 1, comprises the following steps:
preparation of S1 liquid material: weighing the components of the liquid material according to the required parts of the formula, pouring the components into a dispersion stirring multi-purpose machine, mixing and stirring uniformly;
s2 powder preparation: weighing the components of the powder according to the required parts of the formula, pouring the weighed components into a concrete mixer, mixing and uniformly stirring;
s3 preparation of the coating: pouring the powder into the liquid material according to the specified mass ratio of the formula, mixing and uniformly stirring until no agglomeration exists;
s4 brushing: firstly, carrying out base layer treatment until no foreign matters such as broken stones and dust exist, then carrying out brushing for three times, wherein after each coating film is solidified, the next coating film is brushed, and the brushing direction is vertical to the previous coating film, so that the total thickness of the coating dry film is 1.8-2.0 mm.
Example two:
a waterproof coating for garden roads is suitable for concrete structure bridges in gardens and is prepared by mixing liquid materials and powder materials, wherein the mass ratio of the liquid materials to the powder materials is 1.2: 1.
The liquid material comprises the following components in parts by weight:
85 parts of waterproof emulsion;
0.8 part of polydimethylsiloxane;
2 parts of sodium polyacrylate;
8 parts of a film-forming assistant, wherein the film-forming assistant is formed by compounding dipropylene glycol methyl ether and dipropylene glycol butyl ether in a mass ratio of 1: 1;
3 parts of a leveling agent, the model is BYK-333, and the leveling agent is purchased from Bike chemical company of Germany;
25 parts of water;
0.6 part of preservative, the model is ZB-101, and the preservative is purchased from Jinan, China and North Fine chemical Co.
The powder comprises the following components in parts by weight:
42.5R 50 parts of Portland cement;
20 parts of quartz powder;
20 parts of carborundum;
7 parts of organic montmorillonite purchased from a Ganghou Xinyeli mineral processing plant;
8 parts of tourmaline powder, 1250 meshes;
10 parts of nano titanium dioxide, and the particle size is 20 nm;
5 parts of activated hollow carbon fiber, ACHF, was purchased from Toray Japan.
The preparation method of the waterproof emulsion comprises the following steps:
firstly, mixing perfluoroalkyl ethyl acrylate, octadecyl methacrylate, hydroxypropyl acrylate and p-chloromethyl styrene according to equal mass ratio and uniformly stirring to obtain a mixed solution;
mixing 7 parts of emulsifier and 40 parts of water by weight, heating to 80 ℃, keeping the temperature, introducing nitrogen for protection for 20min, adding 50 parts of mixed solution and 1 part of ammonium persulfate, and reacting for 2 h;
and step three, simultaneously dropwise adding 50 parts of mixed solution and 1 part of ammonium persulfate, controlling the materials to be added within 3 hours, finally reacting for 4 hours at the temperature of 85 ℃, cooling and discharging to obtain the waterproof emulsion.
The emulsifier comprises OBS, SDS and OP-10, and the mass ratio of the OBS to the SDS to the OP-10 is 2:1: 2. OBS is sodium perfluorononenoxybenzenesulfonate; SDS, i.e., sodium dodecyl sulfate; OP-10 is alkylphenol ethoxylates.
A construction method of a waterproof paint for garden roads, as shown in fig. 1, comprises the following steps:
preparation of S1 liquid material: weighing the components of the liquid material according to the required parts of the formula, pouring the components into a dispersion stirring multi-purpose machine, mixing and stirring uniformly;
s2 powder preparation: weighing the components of the powder according to the required parts of the formula, pouring the weighed components into a concrete mixer, mixing and uniformly stirring;
s3 preparation of the coating: pouring the powder into the liquid material according to the specified mass ratio of the formula, mixing and uniformly stirring until no agglomeration exists;
s4 brushing: firstly, carrying out base layer treatment until no foreign matters such as broken stones and dust exist, then carrying out brushing for three times, wherein after each coating film is solidified, the next coating film is brushed, and the brushing direction is vertical to the previous coating film, so that the total thickness of the coating dry film is 1.8-2.0 mm.
Example three:
a waterproof coating for garden roads is suitable for concrete structure bridges in gardens and is prepared by mixing liquid materials and powder materials, wherein the mass ratio of the liquid materials to the powder materials is 1: 1.
The liquid material comprises the following components in parts by weight:
82 parts of waterproof emulsion;
0.6 part of polydimethylsiloxane;
1.5 parts of sodium polyacrylate;
7 parts of a film-forming assistant, wherein the film-forming assistant is formed by compounding dipropylene glycol methyl ether and dipropylene glycol butyl ether in a mass ratio of 1: 1;
2.5 parts of leveling agent, the model is BYK-333, and the leveling agent is purchased from Bike chemical company in Germany;
22 parts of water;
0.5 part of preservative, the model is ZB-101, and the preservative is purchased from Jinan, China and North China Fine chemical Co.
The powder comprises the following components in parts by weight:
42.5R 45 parts of Portland cement;
18 parts of quartz powder;
18 parts of carborundum;
5 parts of organic montmorillonite, which is purchased from a Ganghou Xinyeli mineral processing factory;
7 parts of tourmaline powder, 1250 meshes;
9 parts of nano titanium dioxide, and the particle size is 20 nm;
activated hollow carbon fiber 4 parts, i.e., ACHF, was purchased from Toray Japan.
The preparation method of the waterproof emulsion comprises the following steps:
firstly, mixing perfluoroalkyl ethyl acrylate, octadecyl methacrylate, hydroxypropyl acrylate and p-chloromethyl styrene according to equal mass ratio and uniformly stirring to obtain a mixed solution;
mixing 6 parts of emulsifier and 35 parts of water by weight, heating to 78 ℃, keeping the temperature, introducing nitrogen for protection for 15min, adding 45 parts of mixed solution and 0.9 part of ammonium persulfate, and reacting for 1.5 h;
and step three, simultaneously dropwise adding 45 parts of mixed solution and 0.9 part of ammonium persulfate, controlling the charging within 2.5h, finally reacting for 3.5h at the temperature of 80 ℃, cooling and discharging to obtain the waterproof emulsion.
The emulsifier comprises OBS, SDS and OP-10, and the mass ratio of the OBS to the SDS to the OP-10 is 2:1: 2. OBS is sodium perfluorononenoxybenzenesulfonate; SDS, i.e., sodium dodecyl sulfate; OP-10 is alkylphenol ethoxylates.
A construction method of a waterproof paint for garden roads, as shown in fig. 1, comprises the following steps:
preparation of S1 liquid material: weighing the components of the liquid material according to the required parts of the formula, pouring the components into a dispersion stirring multi-purpose machine, mixing and stirring uniformly;
s2 powder preparation: weighing the components of the powder according to the required parts of the formula, pouring the weighed components into a concrete mixer, mixing and uniformly stirring;
s3 preparation of the coating: pouring the powder into the liquid material according to the specified mass ratio of the formula, mixing and uniformly stirring until no agglomeration exists;
s4 brushing: firstly, carrying out base layer treatment until no foreign matters such as broken stones and dust exist, then carrying out brushing for three times, wherein after each coating film is solidified, the next coating film is brushed, and the brushing direction is vertical to the previous coating film, so that the total thickness of the coating dry film is 1.8-2.0 mm.
Example four:
the difference from the third embodiment is that: the powder does not include active hollow carbon fibers, and the rest is the same.
Example five:
the difference from the third embodiment is that: the dispersant is sodium hexametaphosphate, and the rest is the same.
Example six;
the difference from the third embodiment is that: the defoaming agent is polyoxyethylene polyoxypropylene ether, and the rest is the same.
Example seven:
the difference from the third embodiment is that: the powder does not contain nano titanium dioxide, and the rest is the same.
Example eight:
the difference from the third embodiment is that: the emulsifier is AEO-9, and the rest is the same.
Comparative example one:
the difference from the third embodiment is that: the powder does not contain organic montmorillonite, and the rest is the same.
Comparative example two:
the difference from the third embodiment is that: the powder does not contain tourmaline powder, and the rest is the same.
Comparative example three:
the difference from the third embodiment is that: the waterproof emulsion is silicone-acrylate emulsion, and the rest is the same.
Comparative example four:
the difference from the third embodiment is that: the waterproof emulsion is silicone-acrylate emulsion, the powder does not contain organic montmorillonite, tourmaline powder, active hollow carbon fiber and nano titanium dioxide, and the rest is the same.
And (3) testing the performance of the waterproof coating:
the waterproof coatings of the first to third embodiments all meet the regulations of the national standard JCT 975-2005 waterproof coating for roads and bridges.
The adhesive strength of the coating film was tested by the method described in the national industrial standard GB/T16777-2008 test method for waterproof building coatings, and the results are reported in Table 1.
The water absorption of the coating was tested by the method described in chemical industry standard HG/T3344-2012 water absorption test of paint film, and the results are reported in table 1.
The negative ion content of the coating surface was measured by the method described in the national industry Standard GB/T18809-2002 and by using a DLY-7 type air ion measuring instrument, and the results are reported in Table 1.
TABLE 1 TABLE for test results of the performance of waterproof coating materials of examples one to eight and comparative examples one to four
| Adhesive Strength (MPa) | Water absorption (%) | Negative ion content (per/cm)3) | |
| Example one | 2.53 | 2.8 | 895 |
| Example two | 2.59 | 2.8 | 872 |
| EXAMPLE III | 2.56 | 2.9 | 885 |
| Example four | 2.52 | 3.7 | 742 |
| EXAMPLE five | 2.47 | 3.4 | 801 |
| EXAMPLE six | 2.21 | 3.5 | 882 |
| EXAMPLE seven | 2.41 | 5.7 | 764 |
| Example eight | 2.37 | 4.2 | 853 |
| Comparative example 1 | 2.51 | 4.8 | 879 |
| Comparative example No. two | 2.44 | 3.2 | 73 |
| Comparative example No. three | 1.36 | 10.6 | 218 |
| Comparative example No. four | 0.93 | 14.7 | 70 |
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (6)
1. The waterproof coating for garden roads is characterized in that: comprises liquid material and powder material, wherein the mass ratio of the liquid material to the powder material is (0.8-1.2) to 1;
the liquid material comprises the following components in parts by weight:
80-85 parts of waterproof emulsion;
0.5-0.8 part of defoaming agent, wherein the defoaming agent is polydimethylsiloxane;
1-2 parts of a dispersant;
6-8 parts of a film-forming assistant;
2-3 parts of a leveling agent;
20-25 parts of water;
0.4-0.6 part of preservative;
the powder comprises the following components in parts by weight:
40-50 parts of cement;
15-20 parts of quartz powder;
15-20 parts of carborundum;
3-7 parts of organic montmorillonite;
6-8 parts of tourmaline powder;
3-5 parts of active hollow carbon fiber;
the preparation method of the waterproof emulsion comprises the following steps:
firstly, mixing perfluoroalkyl ethyl acrylate, octadecyl methacrylate, hydroxypropyl acrylate and p-chloromethyl styrene according to equal mass ratio and uniformly stirring to obtain a mixed solution;
mixing 5-7 parts of emulsifier and 30-40 parts of water by weight, heating to 75-80 ℃, preserving heat, introducing nitrogen for protection for 10-20min, adding 40-50 parts of mixed solution and 0.8-1 part of ammonium persulfate, and reacting for 1-2 h;
and step three, simultaneously dropwise adding 40-50 parts of mixed solution and 0.8-1 part of ammonium persulfate, controlling the charging to be completed within 2-3h, finally reacting for 3-4h at the temperature of 75-85 ℃, cooling and discharging to obtain the waterproof emulsion.
2. The waterproof paint for garden roads as claimed in claim 1, wherein: the emulsifier comprises OBS, SDS and OP-10, and the mass ratio of the OBS to the SDS to the OP-10 is 2:1: 2.
3. The waterproof paint for garden roads as claimed in claim 1, wherein: the powder material also comprises 8-10 parts of nano titanium dioxide.
4. The waterproof paint for garden roads as claimed in claim 1, wherein: the dispersant is sodium polyacrylate.
5. The waterproof paint for garden roads as claimed in claim 1, wherein: the film-forming assistant is compounded by dipropylene glycol methyl ether and dipropylene glycol butyl ether in a mass ratio of 1: 1.
6. A construction method of the waterproof coating material for garden roads as set forth in claim 1, comprising the steps of:
preparation of S1 liquid material: weighing the components of the liquid material according to the required parts of the formula, mixing and stirring uniformly;
s2 powder preparation: weighing the components of the powder according to the required parts of the formula, mixing and stirring uniformly;
s3 preparation of the coating: mixing the liquid material and the powder material and stirring uniformly;
s4 brushing: after the base layer is treated, the coating is brushed for three times, so that the thickness of a dry film of the coating is 1.8-2.0 mm.
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| CN112662243A (en) * | 2020-12-29 | 2021-04-16 | 山西中涂交通科技股份有限公司 | Cement-based water-based marking paint |
| CN115322604B (en) * | 2022-08-16 | 2023-05-30 | 老顽固(上海)新材料科技有限公司 | High-wear-resistance interior wall cement paint and preparation method thereof |
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