CN112195706B - Comfortable type permeable pavement of elasticity - Google Patents
Comfortable type permeable pavement of elasticity Download PDFInfo
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- CN112195706B CN112195706B CN202010816021.6A CN202010816021A CN112195706B CN 112195706 B CN112195706 B CN 112195706B CN 202010816021 A CN202010816021 A CN 202010816021A CN 112195706 B CN112195706 B CN 112195706B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/142—Mixtures or their components, e.g. aggregate
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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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
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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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
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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
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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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 elastic comfortable permeable pavement, which comprises a permeable concrete pavement base layer and an elastic layer coated on the permeable concrete pavement base layer; the pervious concrete pavement base course comprises the following raw materials: cement, sand, stones, shell powder, calcium carbonate, fly ash, composite fibers, nano silicon dioxide, straw powder, nano titanium dioxide, rubber particles, water, a composite additive and hydroxyethyl cellulose; the composite additive comprises the following raw materials: polycarboxylic acid water reducing agent, zinc gluconate, amino trimethylene phosphonic acid, 2-phosphonic butane-1, 2, 4-tricarboxylic acid, sodium polyacrylate and polyethylene glycol. The elastic comfortable permeable pavement provided by the invention has the advantages of high elasticity, good flexibility, excellent antibacterial and antifouling performances, good comfort and long service life.
Description
Technical Field
The invention relates to the technical field of roads, in particular to an elastic comfortable permeable pavement.
Background
With the continuous improvement of the living standard of people, the demand of people on healthy sports is higher and higher. The ground of some current public places, like stadium, kindergarten etc. most all are with cement ground or marble ground as the main, often the travelling comfort is not enough, and people are injured easily after falling down in the motion process, consequently, the road surface that people expected to go has certain elasticity, and the while antiskid performance is good, and water permeability is excellent, guarantees people's safety. Elasticity permeable pavement can make rain or water infiltration ground, and can play the antiskid effect to can reduce because the water is long-pending stay on the road surface and the diffuse light reflection that leads to, thereby can ensure pedestrian's safe current, and can absorb the impact of road surface to the foot, provide comfortable impression. The existing elastic permeable pavement has the defects of not ideal strength and poor antibacterial and stain-resistant performance, and is short in service life, so that the application of the existing elastic permeable pavement is limited.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an elastic comfortable permeable pavement which is large in elasticity, good in flexibility, excellent in antibacterial and antifouling performances, good in comfort and long in service life.
The invention provides an elastic comfortable permeable pavement, which comprises a permeable concrete pavement base layer and an elastic layer coated on the permeable concrete pavement base layer; the permeable concrete pavement base layer comprises the following raw materials in parts by weight: 32-37 parts of cement, 21-36 parts of sand, 90-145 parts of stones, 0.5-1.8 parts of shell powder, 4-7 parts of calcium carbonate, 3-8 parts of fly ash, 0.26-0.45 part of composite fibers, 0.1-0.9 part of nano silicon dioxide, 0.5-1.4 parts of straw powder, 0.5-1.3 parts of nano titanium dioxide, 8-14 parts of rubber particles, 9-15 parts of water, 0.5-1.3 parts of composite additives and 0.05-0.18 part of hydroxyethyl cellulose;
wherein the composite additive comprises the following raw materials in parts by weight: 55-68 parts of polycarboxylic acid water reducing agent, 0.45-1 part of zinc gluconate, 1-2 parts of amino trimethylene phosphonic acid, 0.1-1 part of 2-phosphonobutane-1, 2, 4-tricarboxylic acid, 8-19 parts of sodium polyacrylate and 0.3-1.5 parts of polyethylene glycol.
Preferably, the cement is P.O42.5R ordinary portland cement, and the specific surface area is 348m2Per kg; the sand is medium sand, and the fineness modulus of the sand is 2.5-2.9; the particle size of the shell powder is 500-900 nm; the grain diameter of the straw powder is 10-15 mu m.
Preferably, the stones are a mixture of stones with a particle size of 5-10mm, stones with a particle size of 12-16mm, and stones with a particle size of 18-22 mm.
Preferably, the weight ratio of the stones with the grain diameter of 5-10mm, the stones with the grain diameter of 12-16mm and the stones with the grain diameter of 18-22mm is 3-8: 1-5: 8-15.
Preferably, the calcium carbonate is a mixture of 100-150 mesh calcium carbonate and 500-800 mesh calcium carbonate.
Preferably, the weight ratio of 100-150 mesh calcium carbonate to 500-800 mesh calcium carbonate is 5-11: 2-4.
Preferably, the composite fiber is a mixture of multiple polypropylene fibers, carbon fibers and basalt fibers.
Preferably, the rubber particles are rubber particles with the particle size of 0.4-0.7mm, rubber particles with the particle size of 2-3.1mm, and rubber particles with the particle size of 5-7mm in a weight ratio of 1: 1: 1.
Preferably, the thickness of the elastic layer is 1.5-2.5 cm.
Preferably, the elastic layer is formed by mixing plastic particles and an adhesive in a ratio of 3.5-4.5: 1 by weight ratio.
Preferably, the plastic particles are 4-6mm in size and 1-2mm in size according to a weight ratio of 4-7.5: 1-2.
Preferably, the plastic particles are polyurethane particles.
Preferably, the polycarboxylic acid water reducing agent is a modified polycarboxylic acid water reducing agent; the modified polycarboxylic acid water reducer is prepared according to the following process: modifying the nano zinc oxide by using vinyl triethoxysilane as a modifier to obtain a material A; uniformly mixing methyl allyl polyoxyethylene ether, a material A, 3, 7-dimethyl-7-octenol, methacryloyloxyethyl trimethyl ammonium chloride, limonene, mercaptopropionic acid, sodium sulfite and deionized water to obtain a monomer solution A; uniformly mixing acrylic acid and water to obtain a monomer solution B; uniformly mixing ammonium persulfate and water to obtain an initiator solution; adding the monomer solution A into a reaction device, heating to 60-70 ℃, dropwise adding the monomer solution B and an initiator solution, carrying out heat preservation reaction for 3-5h at 60-70 ℃, cooling to 30-35 ℃ after the reaction is finished, and adjusting a system to be neutral to obtain the modified polycarboxylic acid water reducer.
Preferably, in the preparation process of the modified polycarboxylic acid water reducer, 80-100 parts by weight of methyl allyl polyoxyethylene ether, 2-5 parts by weight of material A, 1-5 parts by weight of 3, 7-dimethyl-7-octenol, 2-7 parts by weight of methacryloyloxyethyl trimethyl ammonium chloride, 1-8 parts by weight of limonene, 2-5 parts by weight of mercaptopropionic acid, 0.2-0.4 part by weight of sodium sulfite and 100 parts by weight of 150 parts by weight of deionized water are uniformly mixed to obtain a monomer solution A; uniformly mixing 30-45 parts of acrylic acid and 40-60 parts of water to obtain a monomer solution B; uniformly mixing 1.2-1.8 parts of ammonium persulfate and 40-50 parts of water to obtain an initiator solution; adding the monomer solution A into a reaction device, heating to 60-70 ℃, dropwise adding the monomer solution B and an initiator solution, carrying out heat preservation reaction for 3-5h at 60-70 ℃, cooling to 30-35 ℃ after the reaction is finished, and adjusting a system to be neutral to obtain the modified polycarboxylic acid water reducer.
Preferably, the specific process of modifying the nano zinc oxide by using the vinyl triethoxysilane as the modifier can be as follows: adding 2-5 parts by weight of nano zinc oxide into 80-100 parts by weight of absolute ethyl alcohol, ultrasonically dispersing for 40-55min at normal temperature, adding 0.4-1.3 parts by weight of vinyl triethoxysilane, adjusting the pH to 8-9, stirring for 3-5h, stirring and reacting for 3-4h at 70-85 ℃, filtering, washing and drying after the reaction is finished;
or adding 50-70 parts by weight of nano zinc oxide into 500 parts by weight of water of 300-5, adjusting the pH value to 4.5-5, heating to 70-80 ℃, adding 80-100 parts by weight of vinyl triethoxysilane aqueous solution with the mass fraction of 5-10%, stirring and reacting for 2-3.5h at 70-80 ℃, and filtering and drying after the reaction is finished.
The elastic comfortable permeable pavement comprises a permeable concrete pavement base layer and an elastic layer coated on the permeable concrete pavement base layer, and the comprehensive effect of the elastic layer and the pavement base layer with specific components is exerted, so that the obtained pavement has good water permeability, high elasticity and flexibility, good comfort and long service life, and is antibacterial and antifouling; the raw materials of the permeable concrete pavement base layer are cement, sand and stones, and shell powder, calcium carbonate, fly ash, composite fibers, nano silicon dioxide, straw powder and nano titanium dioxide are added for matching, so that the cost is reduced, the workability of concrete mixtures is improved, the permeable rate of the concrete mixtures is improved, the early strength is improved, the defect of low early strength is overcome, the obtained pavement has good stability, excellent antibacterial performance and long service life, and the rubber particles are added for matching with the elastic layer, so that the obtained pavement has large elasticity and good flexibility, and the compressive strength of the concrete is improved on the premise of not influencing the permeable performance; in the preparation process of the modified polycarboxylic acid water reducer in a preferred mode, vinyl triethoxysilane is used as a modifier to modify nano zinc oxide, active vinyl is introduced to the surface of the nano zinc oxide to obtain a material A, then methyl allyl polyoxyethylene ether, the material A, 3, 7-dimethyl-7-octenol, methacryloyloxyethyl trimethyl ammonium chloride and limonene are used as monomer raw materials, the reaction conditions are controlled to react with acrylic acid to obtain the modified polycarboxylic acid water reducer, the 3, 7-dimethyl-7-octenol, the nano zinc oxide, the methacryloyloxyethyl trimethyl ammonium chloride and the limonene are introduced into the molecule of the modified polycarboxylic acid water reducer, the modified polycarboxylic acid water reducer is added into concrete, the water reducer is high in water reducing rate, and simultaneously has defoaming and antibacterial functions, so that the obtained pavement is good in stability, and after the modified polycarboxylic acid water reducer is matched with nano titanium dioxide, the antibacterial and antifouling performance is excellent; the polycarboxylic acid water reducing agent, the zinc gluconate, the amino trimethylene phosphonic acid, the 2-phosphonic butane-1, 2, 4-tricarboxylic acid, the sodium polyacrylate and the polyethylene glycol in the composite additive are added into a system, so that the adaptability in the system is good, the synergistic effect is realized, the water reducing rate is high, the delayed coagulation is good, the defoaming performance is excellent, the volume stability of a pavement is improved, the hydration heat release process of silicate cement is improved, the temperature crack in the pavement is reduced, the performance of a concrete mixture is improved, and the long-term mechanical performance of the concrete is improved.
The performance of the permeable concrete pavement base layer is detected, the compressive strength is more than or equal to 25.9MPa (GB/T50081), and the water permeability coefficient is more than or equal to 6.9mm/s (CJJ/T135-2009); the antibacterial rate to colibacillus reaches 100 percent, and the antibacterial rate to staphylococcus aureus is more than or equal to 99.37 percent.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
The elastic comfortable permeable pavement comprises a permeable concrete pavement base layer and an elastic layer coated on the permeable concrete pavement base layer; the permeable concrete pavement base layer comprises the following raw materials in parts by weight: 37 parts of cement, 21 parts of sand, 145 parts of pebbles, 1 part of shell powder, 7 parts of calcium carbonate, 5 parts of fly ash, 0.26 part of composite fiber, 0.9 part of nano-silica, 0.5 part of straw powder, 1.3 parts of nano-titanium dioxide, 8 parts of rubber particles, 15 parts of water, 1 part of composite additive and 0.18 part of hydroxyethyl cellulose;
wherein the composite additive comprises the following raw materials in parts by weight: 55 parts of polycarboxylic acid water reducing agent, 1 part of zinc gluconate, 1 part of amino trimethylene phosphonic acid, 1 part of 2-phosphonic butane-1, 2, 4-tricarboxylic acid, 8 parts of sodium polyacrylate and 1 part of polyethylene glycol.
Example 2
The elastic comfortable permeable pavement comprises a permeable concrete pavement base layer and an elastic layer coated on the permeable concrete pavement base layer; the permeable concrete pavement base layer comprises the following raw materials in parts by weight: 32 parts of cement, 36 parts of sand, 90 parts of stone, 0.5 part of shell powder, 6 parts of calcium carbonate, 8 parts of fly ash, 0.45 part of composite fiber, 0.1 part of nano-silica, 1.4 parts of straw powder, 0.5 part of nano-titanium dioxide, 11 parts of rubber particles, 12 parts of water, 0.5 part of composite additive and 0.05 part of hydroxyethyl cellulose;
wherein the composite additive comprises the following raw materials in parts by weight: 68 parts of polycarboxylic acid water reducing agent, 0.45 part of zinc gluconate, 2 parts of amino trimethylene phosphonic acid, 0.2 part of 2-phosphonic butane-1, 2, 4-tricarboxylic acid, 19 parts of sodium polyacrylate and 0.3 part of polyethylene glycol.
Example 3
The elastic comfortable permeable pavement comprises a permeable concrete pavement base layer and an elastic layer coated on the permeable concrete pavement base layer; the permeable concrete pavement base layer comprises the following raw materials in parts by weight: 34 parts of cement, 25 parts of sand, 98 parts of stones, 1.8 parts of shell powder with the particle size of 900nm, 4 parts of calcium carbonate, 3 parts of fly ash, 0.1 part of carbon fibers, 0.23 part of polypropylene fibers, 0.1 part of nano silicon dioxide, 0.8 part of straw powder with the particle size of 10 mu m, 1.1 part of nano titanium dioxide, 14 parts of rubber particles, 9 parts of water, 1.3 parts of composite additive and 0.09 part of hydroxyethyl cellulose;
wherein the composite additive comprises the following raw materials in parts by weight: 62 parts of polycarboxylic acid water reducing agent, 0.67 part of zinc gluconate, 1.4 parts of amino trimethylene phosphonic acid, 0.1 part of 2-phosphonic butane-1, 2, 4-tricarboxylic acid, 12 parts of sodium polyacrylate and 1.5 parts of polyethylene glycol;
the cement is P.O42.5R ordinary portland cement, and the specific surface area is 348m2Per kg; the sand is medium sand, and the fineness modulus of the sand is 2.5;
the stones are a mixture of stones with the particle size of 5mm, stones with the particle size of 16mm and stones with the particle size of 18mm, and the weight ratio of the stones with the particle size of 5mm, the stones with the particle size of 16mm and the stones with the particle size of 18mm is 3: 5: 8;
the calcium carbonate is a mixture of 100-mesh calcium carbonate and 800-mesh calcium carbonate, and the weight ratio of the 100-mesh calcium carbonate to the 800-mesh calcium carbonate is 11: 2;
the rubber particles are rubber particles with the particle size of 0.4mm, rubber particles with the particle size of 3.1mm and rubber particles with the particle size of 5mm, and the weight ratio of the rubber particles to the rubber particles is 1: 1: 1;
the thickness of the elastic layer is 1.5 cm;
the elastic layer is prepared from polyurethane particles and an adhesive in a ratio of 3.5: 1 in a weight ratio; the polyurethane particles are polyurethane particles with the size of 4mm and polyurethane particles with the size of 2mm, and the weight ratio of the polyurethane particles to the polyurethane particles is 4: 2;
the polycarboxylic acid water reducing agent is a modified polycarboxylic acid water reducing agent; the modified polycarboxylic acid water reducer is prepared according to the following process: modifying the nano zinc oxide by using vinyl triethoxysilane as a modifier to obtain a material A; uniformly mixing 80 parts of methyl allyl polyoxyethylene ether, 3 parts of material A, 3 parts of 3, 7-dimethyl-7-octenol, 2 parts of methacryloyloxyethyl trimethyl ammonium chloride, 8 parts of limonene, 3 parts of mercaptopropionic acid, 0.4 part of sodium sulfite and 100 parts of deionized water according to parts by weight to obtain a monomer solution A; uniformly mixing 45 parts of acrylic acid and 40 parts of water to obtain a monomer solution B; uniformly mixing 1.8 parts of ammonium persulfate and 40 parts of water to obtain an initiator solution; adding the monomer solution A into a reaction device, heating to 60 ℃, dropwise adding the monomer solution B and an initiator solution, carrying out heat preservation reaction for 4 hours at 60 ℃, cooling to 30 ℃ after the reaction is finished, and adjusting a system to be neutral to obtain the modified polycarboxylic acid water reducer.
Example 4
The elastic comfortable permeable pavement comprises a permeable concrete pavement base layer and an elastic layer coated on the permeable concrete pavement base layer; the permeable concrete pavement base layer comprises the following raw materials in parts by weight: 36 parts of cement, 24 parts of sand, 130 parts of pebbles, 0.8 part of shell powder, 6.2 parts of calcium carbonate, 3 parts of fly ash, 0.1 part of polypropylene fiber, 0.2 part of carbon fiber, 0.11 part of basalt fiber, 0.3 part of nano-silica, 1.3 parts of straw powder, 0.8 part of nano-titanium dioxide, 12 parts of rubber particles, 10 parts of water, 1.2 parts of composite additive and 0.08 part of hydroxyethyl cellulose;
wherein the composite additive comprises the following raw materials in parts by weight: 57 parts of polycarboxylic acid water reducing agent, 0.8 part of zinc gluconate, 1.1 parts of amino trimethylene phosphonic acid, 0.7 part of 2-phosphonic butane-1, 2, 4-tricarboxylic acid, 12 parts of sodium polyacrylate and 1.3 parts of polyethylene glycol;
the cement is P.O42.5R common siliconAcid salt cement with specific surface area of 348m2Per kg; the sand is medium sand, and the fineness modulus of the sand is 2.6; the particle size of the shell powder is 500-600 nm; the grain diameter of the straw powder is 10-12 mu m;
the stones are a mixture of stones with the particle size of 6-8mm, stones with the particle size of 13-14mm and stones with the particle size of 20-22mm, and the weight ratio of the stones with the particle size of 6-8mm, the stones with the particle size of 13-14mm and the stones with the particle size of 20-22mm is 3: 4: 9;
the calcium carbonate is a mixture of 100-mesh 150-mesh calcium carbonate and 500-mesh 800-mesh calcium carbonate, and the weight ratio of the 100-mesh 150-mesh calcium carbonate to the 500-mesh 800-mesh calcium carbonate is 7: 3;
the rubber particles are rubber particles with the particle size of 0.4-0.7mm, rubber particles with the particle size of 2-3.1mm and rubber particles with the particle size of 5-7mm, and the weight ratio of the rubber particles to the rubber particles is 1: 1: 1;
the thickness of the elastic layer is 2 cm;
the elastic layer is prepared from polyurethane particles and an adhesive according to the weight ratio of 4: 1 in a weight ratio;
the polyurethane particles are polyurethane particles with the size of 4-6mm and polyurethane particles with the size of 1-2mm according to the weight ratio of 5: 1.3 of the mixture;
the polycarboxylic acid water reducing agent is a modified polycarboxylic acid water reducing agent; the modified polycarboxylic acid water reducer is prepared according to the following process: modifying the nano zinc oxide by using vinyl triethoxysilane as a modifier to obtain a material A; uniformly mixing 85 parts of methyl allyl polyoxyethylene ether, 3 parts of material A, 4 parts of 3, 7-dimethyl-7-octenol, 5 parts of methacryloyloxyethyl trimethyl ammonium chloride, 6 parts of limonene, 2.7 parts of mercaptopropionic acid, 0.3 part of sodium sulfite and 120 parts of deionized water according to parts by weight to obtain a monomer solution A; uniformly mixing 40 parts of acrylic acid and 45 parts of water to obtain a monomer solution B; uniformly mixing 1.4 parts of ammonium persulfate and 48 parts of water to obtain an initiator solution; adding the monomer solution A into a reaction device, heating to 68 ℃, dropwise adding the monomer solution B and an initiator solution, carrying out heat preservation reaction for 3.8h at 68 ℃, cooling to 31 ℃ after the reaction is finished, and adjusting a system to be neutral to obtain the modified polycarboxylic acid water reducer.
Example 5
The elastic comfortable permeable pavement comprises a permeable concrete pavement base layer and an elastic layer coated on the permeable concrete pavement base layer; the permeable concrete pavement base layer comprises the following raw materials in parts by weight: 33 parts of cement, 31 parts of sand, 100 parts of stone, 1.5 parts of shell powder, 5.2 parts of calcium carbonate, 6.7 parts of fly ash, 0.1 part of carbon fiber, 0.19 part of basalt fiber, 0.8 part of nano-silica, 0.6 part of straw powder, 1.2 parts of nano-titanium dioxide, 9.7 parts of rubber particles, 13 parts of water, 0.8 part of composite additive and 0.13 part of hydroxyethyl cellulose;
wherein the composite additive comprises the following raw materials in parts by weight: 66 parts of polycarboxylic acid water reducing agent, 0.5 part of zinc gluconate, 1.7 parts of amino trimethylene phosphonic acid, 0.4 part of 2-phosphonic butane-1, 2, 4-tricarboxylic acid, 17 parts of sodium polyacrylate and 0.7 part of polyethylene glycol;
the cement is P.O42.5R ordinary portland cement, and the specific surface area is 348m2Per kg; the sand is medium sand, and the fineness modulus of the sand is 2.9; the particle size of the shell powder is 500 nm; the grain diameter of the straw powder is 15 mu m;
the stones are a mixture of stones with the particle size of 10mm, stones with the particle size of 12mm and stones with the particle size of 22mm, and the weight ratio of the stones with the particle size of 10mm, the stones with the particle size of 12mm and the stones with the particle size of 22mm is 8: 1: 15;
the calcium carbonate is a mixture of 150-mesh calcium carbonate and 500-mesh calcium carbonate, and the weight ratio of the 150-mesh calcium carbonate to the 500-mesh calcium carbonate is 5: 4;
the rubber particles are rubber particles with the particle size of 0.7mm, rubber particles with the particle size of 2mm, and rubber particles with the particle size of 7mm, wherein the weight ratio of the rubber particles to the rubber particles is 1: 1: 1;
the thickness of the elastic layer is 2.5 cm;
the elastic layer is prepared from plastic particles and an adhesive according to the weight ratio of 4.5: 1 in a weight ratio;
the plastic particles are 6mm plastic particles and 1mm plastic particles according to the weight ratio of 7.5: 1; the plastic particles are polyurethane particles;
the polycarboxylic acid water reducing agent is a modified polycarboxylic acid water reducing agent; the modified polycarboxylic acid water reducer is prepared according to the following process: modifying the nano zinc oxide by using vinyl triethoxysilane as a modifier to obtain a material A; uniformly mixing 90 parts by weight of methyl allyl polyoxyethylene ether, 5 parts by weight of material A, 1 part by weight of 3, 7-dimethyl-7-octenol, 7 parts by weight of methacryloyloxyethyl trimethyl ammonium chloride, 1 part by weight of limonene, 5 parts by weight of mercaptopropionic acid, 0.3 part by weight of sodium sulfite and 150 parts by weight of deionized water to obtain a monomer solution A; uniformly mixing 30 parts of acrylic acid and 60 parts of water to obtain a monomer solution B; uniformly mixing 1.5 parts of ammonium persulfate and 45 parts of water to obtain an initiator solution; adding the monomer solution A into a reaction device, heating to 70 ℃, dropwise adding the monomer solution B and an initiator solution, carrying out heat preservation reaction for 3 hours at 70 ℃, cooling to 35 ℃ after the reaction is finished, and adjusting a system to be neutral to obtain the modified polycarboxylic acid water reducer.
Example 6
The elastic comfortable permeable pavement comprises a permeable concrete pavement base layer and an elastic layer coated on the permeable concrete pavement base layer; the permeable concrete pavement base layer comprises the following raw materials in parts by weight: 33 parts of cement, 33 parts of sand, 98 parts of stone, 1.4 parts of shell powder, 5.1 parts of calcium carbonate, 7 parts of fly ash, 0.1 part of polypropylene fiber, 0.1 part of carbon fiber, 0.09 part of basalt fiber, 0.72 part of nano-silica, 0.9 part of straw powder, 1.2 parts of nano-titanium dioxide, 10 parts of rubber particles, 13.8 parts of water, 0.7 part of composite additive and 0.18 part of hydroxyethyl cellulose;
wherein the composite additive comprises the following raw materials in parts by weight: 59 parts of polycarboxylic acid water reducing agent, 0.73 part of zinc gluconate, 1.5 parts of amino trimethylene phosphonic acid, 0.8 part of 2-phosphonic butane-1, 2, 4-tricarboxylic acid, 11 parts of sodium polyacrylate and 1 part of polyethylene glycol;
the cement is P.O42.5R ordinary portland cement, and the specific surface area is 348m2Per kg; the sand is medium sand, and the fineness modulus of the sand is 2.5; the particle size of the shell powder is 700-900 nm; the grain diameter of the straw powder is 10-13 mu m;
the stones are a mixture of stones with the particle size of 5-7mm, stones with the particle size of 12-13mm and stones with the particle size of 18-20mm, and the weight ratio of the stones with the particle size of 5-7mm, the stones with the particle size of 12-13mm and the stones with the particle size of 18-20mm is 7: 1: 12;
the calcium carbonate is a mixture of 100-mesh 130-mesh calcium carbonate and 600-mesh 700-mesh calcium carbonate, and the weight ratio of the 100-mesh 130-mesh calcium carbonate to the 600-mesh 700-mesh calcium carbonate is 5: 3;
the rubber particles are rubber particles with the particle size of 0.5-0.6mm, rubber particles with the particle size of 2.6-3mm and rubber particles with the particle size of 5.5-6.7mm, and the weight ratio of the rubber particles to the rubber particles is 1: 1: 1;
the thickness of the elastic layer is 1.5 cm;
the elastic layer is prepared from plastic particles and an adhesive according to the weight ratio of 4.5: 1 in a weight ratio;
the plastic particles are 4.8-5.6mm in size and 1.2-1.7mm in size according to the weight ratio of 5: 1.3 of the mixture;
the polycarboxylic acid water reducing agent is a modified polycarboxylic acid water reducing agent; the modified polycarboxylic acid water reducer is prepared according to the following process: modifying the nano zinc oxide by using vinyl triethoxysilane as a modifier to obtain a material A; uniformly mixing 100 parts of methyl allyl polyoxyethylene ether, 2 parts of material A, 5 parts of 3, 7-dimethyl-7-octenol, 3 parts of methacryloyloxyethyl trimethyl ammonium chloride, 6 parts of limonene, 2 parts of mercaptopropionic acid, 0.2 part of sodium sulfite and 150 parts of deionized water according to parts by weight to obtain a monomer solution A; uniformly mixing 31 parts of acrylic acid and 50 parts of water to obtain a monomer solution B; uniformly mixing 1.2 parts of ammonium persulfate and 43 parts of water to obtain an initiator solution; adding the monomer solution A into a reaction device, heating to 68 ℃, dropwise adding the monomer solution B and an initiator solution, carrying out heat preservation reaction for 4.2h at 68 ℃, cooling to 33 ℃ after the reaction is finished, and adjusting a system to be neutral to obtain the modified polycarboxylic acid water reducer.
Example 7
The elastic comfortable permeable pavement comprises a permeable concrete pavement base layer and an elastic layer coated on the permeable concrete pavement base layer; the permeable concrete pavement base layer comprises the following raw materials in parts by weight: 34.8 parts of cement, 29 parts of sand, 131 parts of stone, 0.9 part of shell powder, 6.3 parts of calcium carbonate, 5 parts of fly ash, 0.38 part of composite fiber, 0.5 part of nano silicon dioxide, 1.2 parts of straw powder, 0.7 part of nano titanium dioxide, 12.1 parts of rubber particles, 11 parts of water, 1 part of composite additive and 0.05 part of hydroxyethyl cellulose;
wherein the composite additive comprises the following raw materials in parts by weight: 61 parts of polycarboxylic acid water reducing agent, 0.66 part of zinc gluconate, 1.9 parts of amino trimethylene phosphonic acid, 0.3 part of 2-phosphonic butane-1, 2, 4-tricarboxylic acid, 17 parts of sodium polyacrylate and 0.6 part of polyethylene glycol;
the cement is P.O42.5R ordinary portland cement, and the specific surface area is 348m2Per kg; the sand is medium sand, and the fineness modulus of the sand is 2.9; the particle size of the shell powder is 500-900 nm; the grain diameter of the straw powder is 10-15 mu m;
the stones are a mixture of stones with the particle size of 5-10mm, stones with the particle size of 12-16mm and stones with the particle size of 18-22mm, and the weight ratio of the stones with the particle size of 5-10mm, the stones with the particle size of 12-16mm and the stones with the particle size of 18-22mm is 3: 4: 15;
the calcium carbonate is a mixture of 100-mesh 150-mesh calcium carbonate and 500-mesh 800-mesh calcium carbonate, and the weight ratio of the 100-mesh 150-mesh calcium carbonate to the 500-mesh 800-mesh calcium carbonate is 7: 2;
the composite fiber is polypropylene fiber, carbon fiber and basalt fiber in a weight ratio of 1: 1: 1;
the rubber particles are rubber particles with the particle size of 0.4-0.7mm, rubber particles with the particle size of 2-3.1mm and rubber particles with the particle size of 5-7mm, and the weight ratio of the rubber particles to the rubber particles is 1: 1: 1;
the thickness of the elastic layer is 2.5 cm;
the elastic layer is prepared from plastic particles and an adhesive in a ratio of 3.5: 1 in a weight ratio;
the plastic particles are 4-6mm in size and 1-2mm in size according to the weight ratio of 6: 1;
the plastic particles are polyurethane particles;
the polycarboxylic acid water reducing agent is a modified polycarboxylic acid water reducing agent; the modified polycarboxylic acid water reducer is prepared according to the following process: modifying the nano zinc oxide by using vinyl triethoxysilane as a modifier to obtain a material A; uniformly mixing 95 parts by weight of methyl allyl polyoxyethylene ether, 3.8 parts by weight of material A, 2.7 parts by weight of 3, 7-dimethyl-7-octenol, 5 parts by weight of methacryloyloxyethyl trimethyl ammonium chloride, 4 parts by weight of limonene, 3 parts by weight of mercaptopropionic acid, 0.27 part by weight of sodium sulfite and 100 parts by weight of deionized water to obtain a monomer solution A; uniformly mixing 42 parts of acrylic acid and 40 parts of water to obtain a monomer solution B; uniformly mixing 1.6 parts of ammonium persulfate and 47 parts of water to obtain an initiator solution; adding the monomer solution A into a reaction device, heating to 63 ℃, dropwise adding the monomer solution B and an initiator solution, carrying out heat preservation reaction for 3.7h at 63 ℃, cooling to 34 ℃ after the reaction is finished, and adjusting a system to be neutral to obtain the modified polycarboxylic acid water reducer.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The elastic comfortable permeable pavement is characterized by comprising a permeable concrete pavement base layer and an elastic layer coated on the permeable concrete pavement base layer; the permeable concrete pavement base layer comprises the following raw materials in parts by weight: 32-37 parts of cement, 21-36 parts of sand, 90-145 parts of stones, 0.5-1.8 parts of shell powder, 4-7 parts of calcium carbonate, 3-8 parts of fly ash, 0.26-0.45 part of composite fibers, 0.1-0.9 part of nano silicon dioxide, 0.5-1.4 parts of straw powder, 0.5-1.3 parts of nano titanium dioxide, 8-14 parts of rubber particles, 9-15 parts of water, 0.5-1.3 parts of composite additives and 0.05-0.18 part of hydroxyethyl cellulose;
wherein the composite additive comprises the following raw materials in parts by weight: 55-68 parts of polycarboxylic acid water reducing agent, 0.45-1 part of zinc gluconate, 1-2 parts of amino trimethylene phosphonic acid, 0.1-1 part of 2-phosphonic butane-1, 2, 4-tricarboxylic acid, 8-19 parts of sodium polyacrylate and 0.3-1.5 parts of polyethylene glycol;
the polycarboxylic acid water reducing agent is a modified polycarboxylic acid water reducing agent; the modified polycarboxylic acid water reducer is prepared according to the following process: modifying the nano zinc oxide by using vinyl triethoxysilane as a modifier to obtain a material A; uniformly mixing methyl allyl polyoxyethylene ether, a material A, 3, 7-dimethyl-7-octenol, methacryloyloxyethyl trimethyl ammonium chloride, limonene, mercaptopropionic acid, sodium sulfite and deionized water to obtain a monomer solution A; uniformly mixing acrylic acid and water to obtain a monomer solution B; uniformly mixing ammonium persulfate and water to obtain an initiator solution; adding the monomer solution A into a reaction device, heating to 60-70 ℃, dropwise adding the monomer solution B and an initiator solution, carrying out heat preservation reaction for 3-5h at 60-70 ℃, cooling to 30-35 ℃ after the reaction is finished, and adjusting a system to be neutral to obtain the modified polycarboxylic acid water reducer.
2. The elastically comfortable permeable pavement according to claim 1, wherein the cement is p.o42.5r ordinary portland cement, and the specific surface area is 348m2Per kg; the sand is medium sand, and the fineness modulus of the sand is 2.5-2.9; the particle size of the shell powder is 500-900 nm; the grain diameter of the straw powder is 10-15 mu m.
3. The elastic comfortable permeable pavement according to claim 1, wherein the stones are a mixture of stones with a particle size of 5-10mm, stones with a particle size of 12-16mm, stones with a particle size of 18-22 mm; the weight ratio of stones with the particle size of 5-10mm, stones with the particle size of 12-16mm and stones with the particle size of 18-22mm is (3-8): (1-5): (8-15).
4. The elastic comfortable permeable pavement according to claim 1, characterized in that the calcium carbonate is a mixture of 100-150 mesh calcium carbonate and 500-800 mesh calcium carbonate; the weight ratio of 100-150 mesh calcium carbonate to 500-800 mesh calcium carbonate is (5-11): (2-4).
5. The elastically comfortable permeable pavement according to claim 1, wherein the composite fiber is a mixture of a plurality of polypropylene fiber, carbon fiber and basalt fiber.
6. The elastic comfortable permeable pavement according to claim 1, wherein the rubber particles are rubber particles with a particle size of 0.4-0.7mm, rubber particles with a particle size of 2-3.1mm, rubber particles with a particle size of 5-7mm, and the weight ratio of the rubber particles is 1: 1: 1.
7. The elastically comfortable permeable pavement according to claim 1, wherein the thickness of the elastic layer is 1.5-2.5 cm.
8. The elastically comfortable permeable pavement according to claim 1, wherein the elastic layer is formed by combining plastic particles and a binder in a ratio of (3.5-4.5): 1 in a weight ratio; the plastic particles are 4-6mm in size and 1-2mm in size according to the weight ratio of (4-7.5): the mixture of (1-2); the plastic particles are polyurethane particles.
9. The elastic comfortable permeable pavement according to claim 1, characterized in that in the preparation process of the modified polycarboxylic acid water reducer, 80-100 parts by weight of methallyl polyoxyethylene ether, 2-5 parts by weight of material A, 1-5 parts by weight of 3, 7-dimethyl-7-octenol, 2-7 parts by weight of methacryloyloxyethyl trimethyl ammonium chloride, 1-8 parts by weight of limonene, 2-5 parts by weight of mercaptopropionic acid, 0.2-0.4 part by weight of sodium sulfite and 100 parts by weight of 150 parts by weight of deionized water are uniformly mixed to obtain monomer solution A; uniformly mixing 30-45 parts of acrylic acid and 40-60 parts of water to obtain a monomer solution B; uniformly mixing 1.2-1.8 parts of ammonium persulfate and 40-50 parts of water to obtain an initiator solution; adding the monomer solution A into a reaction device, heating to 60-70 ℃, dropwise adding the monomer solution B and an initiator solution, carrying out heat preservation reaction for 3-5h at 60-70 ℃, cooling to 30-35 ℃ after the reaction is finished, and adjusting a system to be neutral to obtain the modified polycarboxylic acid water reducer.
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