CN113831077A - 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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- CN113831077A CN113831077A CN202110903136.3A CN202110903136A CN113831077A CN 113831077 A CN113831077 A CN 113831077A CN 202110903136 A CN202110903136 A CN 202110903136A CN 113831077 A CN113831077 A CN 113831077A
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- 239000000463 material Substances 0.000 title claims abstract description 142
- 239000000853 adhesive Substances 0.000 title claims abstract description 65
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 65
- 229920005989 resin Polymers 0.000 claims abstract description 65
- 239000011347 resin Substances 0.000 claims abstract description 65
- 239000004568 cement Substances 0.000 claims abstract description 55
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 46
- 229920002396 Polyurea Polymers 0.000 claims abstract description 39
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000000839 emulsion Substances 0.000 claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 22
- -1 aliphatic isocyanate Chemical class 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000012948 isocyanate Substances 0.000 claims abstract description 19
- 235000005340 Asparagus officinalis Nutrition 0.000 claims abstract description 17
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 16
- 229920001971 elastomer Polymers 0.000 claims abstract description 16
- 239000000806 elastomer Substances 0.000 claims abstract description 16
- 239000004575 stone Substances 0.000 claims abstract description 15
- 239000002270 dispersing agent Substances 0.000 claims abstract description 13
- 239000000049 pigment Substances 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 12
- 230000015271 coagulation Effects 0.000 claims abstract description 7
- 238000005345 coagulation Methods 0.000 claims abstract description 7
- 244000003416 Asparagus officinalis Species 0.000 claims abstract 2
- 239000002002 slurry Substances 0.000 claims description 10
- 229920002522 Wood fibre Polymers 0.000 claims description 9
- 239000002025 wood fiber Substances 0.000 claims description 9
- 239000011449 brick Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 235000019738 Limestone Nutrition 0.000 claims description 3
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 3
- 229930006000 Sucrose Natural products 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 125000000129 anionic group Chemical group 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 229910001653 ettringite Inorganic materials 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- 239000000176 sodium gluconate Substances 0.000 claims description 3
- 229940005574 sodium gluconate Drugs 0.000 claims description 3
- 235000012207 sodium gluconate Nutrition 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000002480 mineral oil Substances 0.000 claims description 2
- 235000010446 mineral oil Nutrition 0.000 claims description 2
- 239000003469 silicate cement Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 6
- 241000234427 Asparagus Species 0.000 description 15
- 239000002994 raw material Substances 0.000 description 14
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 13
- 238000005303 weighing Methods 0.000 description 12
- 238000003756 stirring Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 239000011398 Portland cement Substances 0.000 description 8
- 239000006004 Quartz sand Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 230000008719 thickening Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000005728 strengthening Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229920000805 Polyaspartic acid Polymers 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000011380 pervious concrete Substances 0.000 description 3
- 108010064470 polyaspartate Proteins 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920000608 Polyaspartic Polymers 0.000 description 2
- 229920006243 acrylic copolymer Polymers 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000001056 green pigment Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000001054 red pigment Substances 0.000 description 2
- 239000001052 yellow pigment Substances 0.000 description 2
- YXRKNIZYMIXSAD-UHFFFAOYSA-N 1,6-diisocyanatohexane Chemical compound O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O YXRKNIZYMIXSAD-UHFFFAOYSA-N 0.000 description 1
- 206010011469 Crying Diseases 0.000 description 1
- 241000282373 Panthera pardus Species 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
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 the rapid development of pavement water permeable materials, and at present, the water permeable materials can be divided into sintered water permeable products, cement-based water permeable concrete and organic polymer water permeable concrete. 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 adhesive stone permeable pavement material, wherein polyaspartic acid ester and tripolymer curing agent are adopted to react to form the adhesive 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 permeable pavement material, the invention provides the adhesive for the permeable pavement material and the permeable pavement 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 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; the relative molecular weight of the asparagus polyurea resin is 1000-1500, so that the gel 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 coagulation 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.
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 aspartyl polyurea resin used in the present invention is an advanced chemical D2925 type aspartyl 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 strong expansion promoter is calcium oxide-ettringite strong expansion promoter; 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 adding the nano-grade pure acrylic emulsion to form uniform thick slurry;
adding resin base materials 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 permeable pavement material prepared from the adhesive for permeable pavement 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, and 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 cement can provide the strength and hardness of the surface of the permeable pavement material after hardening, and meanwhile, due to the crosslinking reaction of the asparagus polyurea resin, the flexibility of the surface of the permeable pavement material can be increased, the impact resistance of the 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 permeable paving material is reduced, the permeable paving material is ensured not to crack or hollowly bulge 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 only for illustrative purposes and are not intended to limit the scope of the present invention. It will be understood 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 coagulation 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, the solid content is 90 percent, the NCO content is 19 percent and 0.5 percent, and the free TDI is 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 PI 52.5 type portland cement;
the strengthening expansion agent is leopard crying high-performance calcium oxide-ettringite strengthening expansion 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.
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 P I52.5 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 thickening time control agent.
(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 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: 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) 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 contents and the limited scope of the invention are further explained by the following combined comparative examples:
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 to the cement base material to the nano-grade pure acrylic emulsion of 2:10:2, 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 mixed resin base material into the mixture, 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.
Comparative example 2
(1) Preparing a cement-based material:
accurately weighing the following raw materials in parts by weight: 55 parts of P I52.5 type portland cement, 8 parts of a strength-enhancing expanding agent, 28 parts of stone powder, 5 parts of an 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 thickening time control agent.
(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.
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, and the mixing and stirring are continued 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 binders (without addition of aggregate) of the above examples and comparative examples were measured according to the test method 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 example 2, the components of the strengthening and 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 strengthening and 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 was increased, the resin content was increased, the amount of curing agent was decreased, the polymer reaction was incomplete, the overall strength of the adhesive was decreased, and the shrinkage was increased.
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 the embodiments 1 to 3 have compressive strength of more than 30MPa, and have good impact resistance and ultraviolet aging resistance.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present 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 (10)
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 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 solid content of the nano-grade pure acrylic emulsion is 25 to 35 weight percent.
2. The adhesive for permeable paving material according to claim 1, characterized in that: 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 permeable paving material according to claim 1, characterized in that: 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. An adhesive for water-permeable paving material according to any one of claims 1 to 3, characterized in that: 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 0.5 percent.
5. An adhesive for water-permeable paving material according to any one of claims 1 to 3, characterized in that: the weight average molecular weight of the aspartic polyurea resin is 1000-1500.
6. An adhesive for water-permeable paving material according to any one of claims 1 to 3, characterized in that: 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.
7. An adhesive for water-permeable paving material according to any one of claims 1 to 3, characterized in that: the nano-grade pure acrylic emulsion is nano-grade anionic pure acrylic emulsion, and the solid content is 29 percent +/-1 percent by weight.
8. An adhesive for water-permeable paving material according to any one of claims 1 to 3, characterized in that: 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 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 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.
9. The method of using the adhesive for permeable paving material according to any of claims 1 to 8, wherein:
mixing the cement-based materials uniformly, and adding the nano-grade pure acrylic emulsion to form uniform thick slurry;
adding resin base materials 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.
10. A water-permeable paving material prepared by using the adhesive for water-permeable paving material according to any one of claims 1 to 8, characterized in that: the adhesive is composed of an adhesive and fine aggregate in a weight ratio of 1: 2-6.
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| CN116813273A (en) * | 2023-06-19 | 2023-09-29 | 湖北路城建设科技有限公司 | Slag soil type building rubbish regenerated stone plate and preparation method thereof |
| CN117342837A (en) * | 2023-09-19 | 2024-01-05 | 湖北路城建设科技有限公司 | UHPC ground material, slit type permeable pavement and paving method thereof |
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| 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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| 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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| CN116813273A (en) * | 2023-06-19 | 2023-09-29 | 湖北路城建设科技有限公司 | Slag soil type building rubbish regenerated stone plate and preparation method thereof |
| CN116813273B (en) * | 2023-06-19 | 2024-03-19 | 湖北路城建设科技有限公司 | Slag soil type building rubbish regenerated stone plate and preparation method thereof |
| CN117342837A (en) * | 2023-09-19 | 2024-01-05 | 湖北路城建设科技有限公司 | UHPC ground material, slit type permeable pavement and paving method thereof |
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