CN113831077B - Adhesive for water-permeable paving material and application thereof - Google Patents
Adhesive for water-permeable paving material and application thereof Download PDFInfo
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- CN113831077B CN113831077B CN202110903136.3A CN202110903136A CN113831077B CN 113831077 B CN113831077 B CN 113831077B CN 202110903136 A CN202110903136 A CN 202110903136A CN 113831077 B CN113831077 B CN 113831077B
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
- C04B2111/00646—Masonry mortars
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/50—Flexible or elastic materials
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- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
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- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention discloses an adhesive for permeable paving materials and application thereof, wherein the adhesive is prepared from the following components in parts by weight of 3-5: 10-20: 2-4 of resin base material, cement base material and nano-grade pure acrylic emulsion; wherein: the resin base material comprises the following components in parts by weight per 100 parts by weight of the resin base material: 50-70 parts of asparagus polyurea resin, 20-40 parts of aliphatic isocyanate and 5-10 parts of elastomer polyurea curing agent; every 100 weight portions of cement-based material comprise: 50-60 parts of cement, 12-20 parts of a strength-enhancing expanding agent, 6-30 parts of stone powder, 0-10 parts of pigment, 1-2 parts of a dispersing agent, 1-2 parts of a defoaming agent, 1-2 parts of a water-retaining agent and 1-3 parts of a coagulation regulator; the nano-grade pure acrylic emulsion has the solid content of 25 to 35 weight percent and the particle size of 20 to 40 nm. The adhesive can be used for efficiently preparing the water permeable paving material, and the obtained water permeable paving material has high strength and good weather resistance.
Description
Technical Field
The invention relates to an adhesive for a water permeable paving material and application thereof, which are suitable for the field of urban municipal road construction.
Background
The construction and development of sponge cities bring about rapid development of pavement permeable materials, and the permeable materials can be divided into sintered permeable products, cement-based permeable concrete and organic polymer permeable concrete at present. Among them, the sintered permeable products are less used due to their energy consumption; the aggregate grain diameter required by the cement-based pervious concrete is larger, and the aggregate grain diameter is easily blocked by sundries in the daily use process, so that the use effect is influenced; the polymer pervious concrete is prepared by bonding fine aggregates by high polymer materials such as asphalt, resin and the like, but the polymer pervious concrete is easy to fade and age when being used outdoors, thereby influencing the aesthetic property and durability of a pavement.
The Chinese patent application with the application number of 201810066674.X discloses a polyaspartic acid ester glued stone permeable pavement material, wherein polyaspartic acid ester and a tripolymer curing agent are adopted to react to form the glued stone permeable pavement material, and although the yellowing resistance of the material is excellent, the overall mechanical strength of the permeable material is not high.
Disclosure of Invention
Aiming at the defects of the existing water permeable paving material, the invention provides the adhesive for the water permeable paving material and the water permeable paving material prepared from the adhesive.
The invention provides an adhesive for a water permeable paving material, which is prepared from the following components in parts by weight of 3-5: 10-20: 2-4 of resin base material, cement base material and nano-grade pure acrylic emulsion; wherein:
the resin base material comprises the following components in parts by weight per 100 parts of resin base material: 50-70 parts of asparagus polyurea resin, 20-40 parts of aliphatic isocyanate and 5-10 parts of elastomer polyurea curing agent; the relative molecular weight of the aspartic polyurea resin is 1000-1500, so that the gelation time can be prolonged, the glass transition temperature can be reduced, and the operable time and the flexibility can be ensured; the elastomer polyurea curing agent is compounded with the aliphatic isocyanate, so that the shrinkage resistance can be improved;
every 100 weight portions of cement-based material comprise: 50-60 parts of cement, 12-20 parts of a strength-enhancing expanding agent, 6-30 parts of stone powder, 0-10 parts of pigment, 1-2 parts of a dispersing agent, 1-2 parts of a defoaming agent, 1-2 parts of a water-retaining agent and 1-3 parts of a pour regulator;
the nano-grade pure acrylic emulsion has the solid content of 25 to 35 weight percent and the particle size of the acrylic copolymer is 20 to 40 nm.
Preferably, the adhesive for the permeable paving material provided by the invention comprises the following components in percentage by weight of 4-5: 15-20: 3-4 of resin base material, cement base material and nano-grade pure acrylic emulsion.
Preferably, the adhesive for the water permeable paving material provided by the invention comprises the following components in percentage by weight: 20:4, a resin base material, a cement-based material and a nano-grade pure acrylic emulsion.
Preferably, the aliphatic isocyanate used in the present invention is an HDI trimer.
Preferably, the asparaguese polyurea resin used in the present invention is an advanced chemical D2925 type asparaguese polyurea resin.
Preferably, the elastomer polyurea curing agent used in the present invention is an elastomer polyurea curing agent of the flying chemical SP-103P type.
As the optimization of the technical scheme, the nano-scale pure acrylic emulsion is nano-scale anionic pure acrylic emulsion, and the solid content is 29 percent +/-1 percent by weight. As a further optimization of the technical scheme, the nanometer grade pure acrylic emulsion used by the invention adopts Xinte Ma AXILAT PR3500 type nanometer grade pure acrylic emulsion, the particle size is 30nm, and the solid content is 29%.
Preferably, the cement used in the invention is a type Pi or PII portland cement with the strength grade of 52.5; the strength-enhancing expanding agent is calcium oxide-ettringite strength-enhancing expanding agent; the stone powder is superfine limestone powder with the granularity of 500 meshes to 1000 meshes; the pigment is inorganic powder pigment or liquid water-based pigment; the defoaming agent is a powder defoaming agent of a mixed type of polyoxyalkylene derivatives and non-mineral oil; the water-retaining agent is wood fiber; the dispersant is a polycarboxylic acid water reducing agent; the coagulation regulator consists of white sugar and sodium gluconate in the weight ratio of 1: 3.
The invention also provides a use method of the adhesive for the water permeable paving material, which comprises the following steps:
mixing the cement-based materials uniformly, and then adding the nano-grade pure acrylic emulsion to form uniform thick slurry;
adding resin base material into the obtained uniform thick slurry, and uniformly mixing to form an adhesive for the permeable paving material;
uniformly mixing the obtained adhesive for the permeable paving material and fine aggregate according to the weight ratio of 1: 2-6;
prefabricating the water permeable bricks or the water permeable plates, or pouring construction.
The invention also provides a water permeable paving material prepared from the adhesive for water permeable paving materials, which comprises the following components in percentage by weight: the adhesive consists of an adhesive and fine aggregate in a weight ratio of 1: 2-6; wherein the fine aggregate is quartz sand aggregate with single grain size of 4 meshes, 6 meshes, 10 meshes, 20 meshes, 40 meshes and 80 meshes. Furthermore, according to the particle size of the fine aggregate, the permeable paving material can be cast in place, and can also be prefabricated into permeable bricks or permeable plates for paving.
The adhesive for preparing the permeable paving material is compounded by the asparagus polyurea resin, the aliphatic isocyanate and the cement-based material, and has the following advantages and beneficial effects:
the asparagus polyurea resin is compounded with the cement-based material to wrap the fine aggregate, the strength and hardness of the surface of the water-permeable pavement material can be provided after the cement is hardened, and meanwhile, due to the cross-linking reaction effect of the asparagus polyurea resin, the flexibility of the surface of the water-permeable pavement material can be increased, the shock resistance of the water-permeable pavement material is improved, and the service life is prolonged; the cement-based material is compounded with the nanoscale pure acrylic emulsion, so that the micro-expansion, crack resistance and bonding performance of the cement-based material can be improved, and after the cement-based material is further compounded with the asparagus polyurea resin and the aliphatic isocyanate for use, the overall cracking risk of the water-permeable pavement material is reduced, and the water-permeable pavement material is prevented from cracking and hollowing in the use process and is firmly bonded with the base layer; the resin base material, the cement-based material and the nano-grade pure acrylic emulsion are compounded, so that the cohesion of the permeable pavement material is increased, the bonding strength of the permeable pavement material is increased, and the excellent bonding performance and the water permeability among aggregates of the permeable pavement material can be ensured when the aggregates with fine particles are used, so that the overall strength is improved; the cement-based material is used as a main raw material of an outdoor structure due to good weather resistance, and polyurea generated by the reaction of the polyaspartic polyurea resin and the aliphatic isocyanate has excellent ultraviolet resistance, so that the cement-based material and the polyaspartic polyurea resin are combined and applied to the permeable paving material, and the durability and the weather resistance of the permeable paving material are ensured when the cement-based material is used outdoors.
Detailed Description
The present invention will be further explained with reference to examples. The examples are provided for illustrative purposes only, and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that certain well-known structures of the embodiments and their descriptions may be omitted.
The technical scheme of the invention is further explained by combining the specific embodiments as follows:
the invention provides an adhesive for a water permeable paving material, which is prepared from the following components in parts by weight of 3-5: 10-20: 2-4 of resin base material, cement base material and nano-grade pure acrylic emulsion; wherein:
the resin base material comprises the following components in parts by weight per 100 parts by weight of the resin base material: 50-70 parts of asparagus polyurea resin, 20-40 parts of aliphatic isocyanate and 5-10 parts of elastomer polyurea curing agent;
every 100 weight portions of cement-based material comprise: 50-60 parts of cement, 12-20 parts of a strength-enhancing expanding agent, 6-30 parts of stone powder, 0-10 parts of pigment, 1-2 parts of a dispersing agent, 1-2 parts of a defoaming agent, 1-2 parts of a water-retaining agent and 1-3 parts of a pour regulator;
the nano-grade pure acrylic emulsion has a solid content of 25-35 wt%, and the particle size of the acrylic copolymer is 20-40 nm.
The raw materials used in the embodiment of the invention are as follows:
the asparagus polyurea resin is flying chemical D2925 series asparagus polyurea resin, and the relative molecular weight is 1000-1500;
the aliphatic isocyanate is Shiquanxing N-8890HDI tripolymer curing agent with solid content of 90 percent, NCO content of 19 percent and free TDI less than or equal to 0.4 percent;
the elastomer polyurea curing agent is a flying chemical SP-103P type elastomer polyurea curing agent, the solid content is more than or equal to 60 percent, the NCO content is 3.2-3.6 percent, and the equivalent weight is 1160-1300;
the cement is Huaxin PI52.5 type portland cement;
the strengthening and swelling agent is leopard crying high-performance calcium oxide-ettringite strengthening and swelling agent;
the stone powder is commercially available superfine limestone powder with the granularity of 800 meshes;
the pigment is commercially available ferric oxide inorganic powder pigment;
the dispersing agent is STB P535 type powder polycarboxylic acid water reducing agent;
the defoaming agent is a defoaming agent of a type P8850 of the Ming Ling;
the water-retaining agent is wood fiber sold in the market;
the coagulation regulator is prepared by mixing commercially available white sugar and sodium gluconate according to a ratio of 1: 3;
the nanometer pure acrylic emulsion is Xinte-Ma nanometer anionic pure acrylic emulsion AXILAT PR3500, the particle diameter is 30nm, and the solid content is 29wt +/-1 wt%.
Example 1
(1) Preparing a cement-based material:
accurately weighing the following raw materials in parts by weight: 50 parts of P I52.5 type portland cement, 12 parts of a strength-enhancing expanding agent, 30 parts of stone powder, 4 parts of iron oxide red pigment, 1 part of a dispersing agent, 1 part of a P8850 defoaming agent, 1 part of wood fiber and 1 part of a thickening time control agent.
(2) Preparing a resin base material:
accurately weighing the following raw materials in parts by weight: 50 parts of asparagus polyurea resin, 40 parts of aliphatic isocyanate and 10 parts of elastomer polyurea curing agent.
(3) Before preparing the permeable paving material, preparing an adhesive on site: according to the weight ratio of the resin base material, the cement base material and the nano-grade pure acrylic emulsion being 3:10:2, firstly mixing and stirring the cement base material and the nano-grade pure acrylic emulsion for 3min to obtain a uniform slurry state, then adding the uniformly mixed resin base material, and continuously mixing and stirring for 3min to obtain the adhesive.
(4) The adhesive and quartz sand aggregate with the grain diameter of 4 meshes are mixed and stirred uniformly according to the weight ratio of 1:3 to obtain the permeable paving material which can be used for permeable pavement paving.
When in actual use, the dosage of the cement-based material, the resin-based material and the nano-grade pure acrylic emulsion in the adhesive is determined according to the dosage of the aggregate, and the adhesive is prepared and stirred at one time.
Example 2
(1) Preparing a cement-based material:
accurately weighing the following raw materials in parts by weight: 55 parts of PII 52.5 type portland cement, 17 parts of a strength-enhancing expanding agent, 16 parts of stone powder, 6 parts of iron oxide yellow pigment, 1 part of a dispersing agent, 1.5 parts of a P8850 defoaming agent, 1.5 parts of wood fiber and 2 parts of a pour regulator.
(2) Preparing a resin base material:
accurately weighing the following raw materials in parts by weight: 60 parts of asparagus polyurea resin, 35 parts of aliphatic isocyanate and 5 parts of elastomer polyurea curing agent.
(3) Preparing an adhesive: according to the weight ratio of the resin base material to the cement base material to the nano-grade pure acrylic emulsion of 4:15:3, firstly mixing and stirring the cement base material and the nano-grade pure acrylic emulsion for 3min to obtain a uniform slurry state, then adding the mixed resin base material into the mixture, and continuously mixing and stirring for 3min to obtain the adhesive.
(4) The adhesive and the quartz sand aggregate with the grain diameter of 10 meshes are mixed and stirred uniformly according to the weight ratio of 1:4 to obtain the permeable paving material which can be used for permeable pavement paving.
Example 3
(1) Preparing a cement-based material:
accurately weighing the following raw materials in parts by weight: 60 parts of PII 52.5 type portland cement, 20 parts of a strength-enhancing expanding agent, 6 parts of stone powder, 5 parts of iron oxide green pigment, 2 parts of a dispersing agent, 2 parts of a P8850 defoaming agent, 2 parts of wood fiber and 3 parts of a pour regulator.
(2) Preparing a resin base material:
accurately weighing the following raw materials in parts by weight: 70 parts of asparagus polyurea resin, 20 parts of aliphatic isocyanate and 10 parts of elastomer polyurea curing agent.
(3) Preparing an adhesive: according to the weight ratio of the resin base material, the cement base material and the nano-grade pure acrylic emulsion of 5:20:4, the cement base material and the nano-grade pure acrylic emulsion are mixed and stirred for 3min to be in a uniform slurry state, the mixed resin base material is added, and the mixing and stirring are continued for 3min, so that the adhesive is obtained.
(4) And (3) uniformly mixing and stirring the adhesive and 80-mesh quartz sand aggregate according to the weight ratio of 1:6 to obtain the permeable paving material which can be used for prefabricating permeable bricks.
The contents and the limited scope of the invention are further explained by combining the comparative examples as follows:
comparative example 1
(1) Preparing a cement-based material:
accurately weighing the following raw materials in parts by weight: 50 parts of P I52.5 type portland cement, 12 parts of a strength-enhancing expanding agent, 30 parts of stone powder, 4 parts of iron oxide red pigment, 1 part of a dispersing agent, 1 part of a P8850 defoaming agent, 1 part of wood fiber and 1 part of a thickening time control agent.
(2) Preparing a resin base material:
accurately weighing the following raw materials in parts by weight: 50 parts of asparagus polyurea resin, 40 parts of aliphatic isocyanate and 10 parts of elastomer polyurea curing agent.
(3) Preparing an adhesive: according to the weight ratio of the resin base material, the cement base material and the nano-grade pure acrylic emulsion of 2:10:2, the cement base material and the nano-grade pure acrylic emulsion are mixed and stirred for 3min to be in a uniform slurry state, the mixed resin base material is added into the mixture, and the mixture is continuously mixed and stirred for 3min, so that the adhesive is obtained.
(4) The adhesive and quartz sand aggregate with the grain diameter of 4 meshes are mixed and stirred uniformly according to the weight ratio of 1:3 to obtain the permeable pavement material which can be used for paving the permeable pavement.
Comparative example 2
(1) Preparing a cement-based material:
accurately weighing the following raw materials in parts by weight: 55 parts of PII 52.5 type portland cement, 8 parts of a strength-enhancing expanding agent, 28 parts of stone powder, 5 parts of iron oxide yellow pigment, 1 part of a dispersing agent, 1 part of a P8850 defoaming agent, 1 part of wood fiber and 1 part of a pour regulator.
(2) Preparing a resin base material:
accurately weighing the following raw materials in parts by weight: 60 parts of asparagus polyurea resin, 35 parts of aliphatic isocyanate and 5 parts of elastomer polyurea curing agent.
(3) Preparing an adhesive: according to the weight ratio of the resin base material, the cement base material and the nano-grade pure acrylic emulsion of 4:15:3, the cement base material and the nano-grade pure acrylic emulsion are mixed and stirred for 3min to be in a uniform slurry state, the mixed resin base material is added into the mixture, and the mixture is continuously mixed and stirred for 3min, so that the adhesive is obtained.
(4) The adhesive and quartz sand aggregate with the grain diameter of 10 meshes are mixed and stirred uniformly according to the weight ratio of 1:4 to obtain the permeable pavement material which can be used for paving the permeable pavement.
Comparative example 3
(1) Preparing a cement-based material:
accurately weighing the following raw materials in parts by weight: 60 parts of P I52.5 type portland cement, 20 parts of a strength-enhancing expanding agent, 6 parts of stone powder, 5 parts of iron oxide green pigment, 2 parts of a dispersing agent, 2 parts of a P8850 defoaming agent, 2 parts of wood fiber and 3 parts of a thickening time control agent.
(2) Preparing a resin base material:
accurately weighing the following raw materials in parts by weight: 80 parts of asparagus polyurea resin, 10 parts of aliphatic isocyanate and 10 parts of elastomer polyurea curing agent.
(3) Preparing an adhesive: according to the weight ratio of the resin base material, the cement base material and the nano-grade pure acrylic emulsion of 5:20:4, the cement base material and the nano-grade pure acrylic emulsion are mixed and stirred for 3min to be in a uniform slurry state, the mixed resin base material is added into the mixture, and the mixture is continuously mixed and stirred for 3min, so that the adhesive is obtained.
(4) The adhesive and quartz sand aggregate with the grain diameter of 80 meshes are mixed and stirred uniformly according to the weight ratio of 1:6 to obtain the permeable paving material which can be used for prefabricating permeable bricks.
The formulations of the adhesives in the above examples and comparative examples are shown in Table 1.
TABLE 1 formulation of the adhesives in the examples and comparative examples
The physical properties and dimensional change rates of the adhesives (without addition of aggregate) in the above examples and comparative examples were measured according to the test methods described in JC/T985 "Cement-based self-leveling mortar for floors", as shown in Table 2:
TABLE 2 physical Properties of adhesives obtained in examples and comparative examples
As can be seen from Table 2, the adhesives prepared in examples 1-3 all have good compressive and flexural strength; the bonding strength is more than 2.0MPa after the pretreatment and the soaking treatment, and is more than 1.5MPa after the freeze-thaw cycle treatment; the dimensional change rate is small.
Compared with the example 1, the weight ratio of the resin base material to the cement base material is smaller, the resin content in the system is smaller, and the compression strength and the breaking strength of the adhesive are lower.
Compared with the embodiment 2, the comparative example 2 has the advantages that the components of the strength-enhancing expanding agent are reduced, so that the size change rate of the adhesive is increased, the adhesive is in a shrinkage state, and when the strength-enhancing expanding agent is applied to the water-permeable paving material, the risk of shrinkage cracking is generated; comparative example 3 compared with example 3, the weight ratio of polyaspartic acid resin to aliphatic isocyanate is larger, the resin content is larger, the dosage of the curing agent is smaller, the polymer reaction is incomplete, the overall strength of the adhesive is smaller, and the shrinkage is larger.
The permeable pavement materials prepared in examples 1-3 were made into sample blocks according to the standard CJJ/T135 "technical specification for permeable cement concrete pavements", and the performance was tested, with the results shown in table 3:
TABLE 3 Properties of samples of permeable pavement materials prepared in examples 1-3
As can be seen from the above table, the permeable paving materials prepared in examples 1 to 3 have compressive strength of more than 30MPa, and have good impact resistance and ultraviolet aging resistance.
The above description is merely illustrative of particular embodiments of the invention that enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. An adhesive for permeable paving materials, characterized in that: the weight ratio of (3-5): 10-20: 2-4 of resin base material, cement base material and nano-grade pure acrylic emulsion; wherein:
the resin base material comprises the following components in parts by weight per 100 parts of resin base material: 50-70 parts of asparagus polyurea resin, 20-40 parts of aliphatic isocyanate and 5-10 parts of elastomer polyurea curing agent;
the cement-based material comprises the following components in parts by weight per 100 parts by weight of the cement-based material: 50-60 parts of cement, 12-20 parts of a strength-enhancing expanding agent, 6-30 parts of stone powder, 0-10 parts of pigment, 1-2 parts of a dispersing agent, 1-2 parts of a defoaming agent, 1-2 parts of a water-retaining agent and 1-3 parts of a coagulation regulator;
the aliphatic isocyanate is HDI tripolymer, the solid content of the aliphatic isocyanate is more than or equal to 90 percent, and the-NCO content is 19 cm and 0.5 percent;
the weight average molecular weight of the aspartic polyurea resin is 1000-1500;
the solid content of the elastomer polyurea curing agent is more than or equal to 60 percent, the-NCO content is 3.2 to 3.6 percent, and the equivalent weight is 1160-1300;
the nano-scale pure acrylic emulsion is nano-scale anionic pure acrylic emulsion, and the solid content is 29 weight percent +/-1 weight percent;
the cement is P I or P II type silicate cement, and the strength grade is 52.5; the strong expansion promoter is calcium oxide-ettringite strong expansion promoter; the stone powder is superfine limestone powder with the granularity of 500 meshes-1000 meshes; the pigment is inorganic powder pigment or liquid water-based pigment; the defoaming agent is a powder defoaming agent of a mixed type of polyoxyalkylene derivatives and non-mineral oil; the water-retaining agent is wood fiber; the dispersing agent is a polycarboxylic acid water reducing agent; the coagulation regulator consists of white sugar and sodium gluconate in a weight ratio of 1: 3.
2. The adhesive for water-permeable paving material according to claim 1, wherein: the adhesive is prepared from the following components in percentage by weight of 4-5: 15-20: 3-4 of resin base material, cement base material and nano-grade pure acrylic emulsion.
3. The adhesive for water-permeable paving material according to claim 1, wherein: the adhesive is prepared from the following components in percentage by weight of 5:20:4, a resin base material, a cement-based material and a nano-grade pure acrylic emulsion.
4. The method of using the adhesive for permeable paving material according to any of claims 1 to 3, wherein:
mixing the cement-based materials uniformly, and then adding the nano-grade pure acrylic emulsion to form uniform thick slurry;
adding resin base material into the obtained uniform thick slurry, and uniformly mixing to form an adhesive for the permeable paving material;
uniformly mixing the obtained adhesive for the permeable paving material with fine aggregate according to the weight ratio of 1: 2-6;
and prefabricating the water permeable bricks or the water permeable plates, or performing pouring construction.
5. A water-permeable paving material prepared by using the adhesive for water-permeable paving material according to any one of claims 1 to 3, characterized in that: the adhesive consists of an adhesive and fine aggregate in a weight ratio of 1: 2-6.
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|---|---|---|---|---|
| WO2013064823A1 (en) * | 2011-10-31 | 2013-05-10 | Cleansorb Limited | Process for treating an underground formation |
| CN108129071A (en) * | 2018-01-24 | 2018-06-08 | 广州市希尔德新材料科技有限公司 | A kind of polyaspartic ester gluing stone porous pavement material |
| CN112537932A (en) * | 2020-12-22 | 2021-03-23 | 湖北华天翼建设工程有限公司 | Novel pervious concrete and construction method thereof |
-
2021
- 2021-08-06 CN CN202110903136.3A patent/CN113831077B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013064823A1 (en) * | 2011-10-31 | 2013-05-10 | Cleansorb Limited | Process for treating an underground formation |
| CN108129071A (en) * | 2018-01-24 | 2018-06-08 | 广州市希尔德新材料科技有限公司 | A kind of polyaspartic ester gluing stone porous pavement material |
| CN112537932A (en) * | 2020-12-22 | 2021-03-23 | 湖北华天翼建设工程有限公司 | Novel pervious concrete and construction method thereof |
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