CN111484310A - Green construction method of ecological garden road with water permeability - Google Patents
Green construction method of ecological garden road with water permeability Download PDFInfo
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- CN111484310A CN111484310A CN202010386204.9A CN202010386204A CN111484310A CN 111484310 A CN111484310 A CN 111484310A CN 202010386204 A CN202010386204 A CN 202010386204A CN 111484310 A CN111484310 A CN 111484310A
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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
- C04B30/00—Compositions for artificial stone, not containing binders
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/0665—Waste material; Refuse other than vegetable refuse
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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
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
- E01C11/226—Coherent pavings
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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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/1027—Mixing in a rotary receptacle
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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
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
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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
- C04B2111/40—Porous or lightweight 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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
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- Architecture (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a green construction method of ecological garden roads with water permeability, which can improve the water permeability of the road surface and increase the tensile strength of the road surface by matching the aluminum oxide, the silicon dioxide, the coal ash, the silica fume and the slag powder according to different mesh numbers; melamine and furfural residues are also added, and are decomposed at high temperature in the high-temperature calcination process, so that fine gaps are formed inside aluminum oxide, silicon dioxide, coal ash, silica fume and slag powder, and the water permeability of the pavement is improved due to the existence of the gaps; still include reaction unit, let in gas messenger's reaction barrel internal pressure for 3 ~ 4Mpa to the reaction barrel, under the high pressure condition to make the material in the reaction barrel rotate at a high speed through the motor, so, can further ream the space that has formed in the calcination thing, so, can further improve the coefficient of permeability on road surface, thereby improve the water permeability on road surface.
Description
Technical Field
The invention relates to the technical field of garden construction, in particular to a green construction method of an ecological garden road with water permeability.
Background
Garden roads are the components of gardens and play the roles of organizing space, guiding tourism, traffic contact and providing a place for walking and resting. The garden road integrates all scenic spots of the garden like veins, is a component of garden scenery, and gives people a beautiful feeling due to a winding and fluctuating curve, rich connotation and exquisite patterns.
However, the current garden roads are waterproof and air-permeable, and are very easy to cause urban rainwater accumulation to cause waterlogging.
Therefore, it is necessary to provide a garden road construction method to improve the water permeability of the garden road.
Disclosure of Invention
In view of the above, the invention provides a garden road construction method with good water permeability.
The technical scheme of the invention is realized as follows: the invention provides a green construction method of an ecological garden road with water permeability, which comprises the following steps:
s1, paving a base layer after compacting the roadbed, and then paving at least one permeable layer on the base layer;
s2, pouring concrete on the permeable layer, and curing and forming to form a facing layer;
wherein, the permeable layer comprises the following raw materials:
the water reducing agent comprises aluminum oxide, silicon dioxide, coal ash, silica fume, slag powder, a water reducing agent, melamine and furfural slag, wherein the mesh number of the aluminum oxide and the silicon dioxide is 30-50 meshes, the mesh number of the coal ash and the silica fume is 50-70 meshes, and the mesh number of the slag powder is 80-90 meshes.
On the basis of the above technical solution, preferably, the preparation method of the water permeable layer comprises the following steps:
a1, uniformly mixing aluminum oxide, silicon dioxide, coal ash, silica fume and slag powder, then placing the mixture into an oxalic acid solution to be soaked for 3-5 min, and filtering to obtain a mixture;
a2, mixing the mixture with melamine and furfural residues, uniformly stirring, heating to 200-250 ℃ at a speed of 2-3 ℃/min, then preserving heat for 2-3 h, heating to 300-350 ℃ at a speed of 3-6 ℃/min, then preserving heat for 1-2 h, heating to 600-700 ℃ at a speed of 5-10 ℃/min, preserving heat for 0.5-1 h, and cooling to room temperature to obtain a calcined substance;
and A3, mixing the calcined product obtained in A2 with a water reducing agent and water, pouring the mixture on a base layer in sequence, and vibrating and pressurizing the mixture to form the water permeable layer.
Further preferably, the reaction device further comprises:
the upper end of the reaction barrel is provided with a feed inlet;
the output shaft of the motor is connected with a connecting rod, the connecting rod is fixed with the reaction barrel, and the motor rotates to drive the reaction barrel to rotate;
the reaction device comprises a gas storage tank, a reaction barrel and a gas guide pipe, wherein high-pressure inert gas is stored in the gas storage tank, the gas storage tank is communicated with the gas guide pipe, the end part of the gas guide pipe extends into the reaction barrel, and the reaction barrel can rotate relative to the end part of the gas guide pipe;
adding the calcined substance obtained in A2 into a reaction barrel through a feed inlet, adding water into the reaction barrel, adjusting the pH value to 8-9, introducing gas into the reaction barrel to enable the pressure in the reaction barrel to be 3-4 Mpa, enabling the rotating speed of the reaction barrel to be 800-1000 r/min through a motor, reacting for 0.5-1 h to obtain a treated calcined substance, mixing the treated calcined substance with a water reducing agent and water, pouring the mixture on a base layer in sequence, and performing vibration and pressure molding to form a water permeable layer.
More preferably, the frequency of the vibration press molding is 60 to 80Hz, and the amplitude is 0.6 to 0.7 mm.
More preferably, the vibration pressurization pressure is 2 × 104-4 × 104Pa, and the pressure maintaining time is 20-30 s.
Further preferably, the mass ratio of the aluminum oxide to the silicon dioxide to the coal ash to the silicon ash to the slag powder to the water reducing agent to the melamine to the furfural slag is 50-60: 20-30: 30-40: 25-30: 15-20: 2-3: 0.5-1: 1-2.
More preferably, the water reducing agent is one of a methacrylic acid-methyl acrylate polycarboxylic acid water reducing agent, an allyl ether polycarboxylic acid water reducing agent or an amide-imide polycarboxylic acid water reducing agent.
Compared with the prior art, the green construction method of the ecological garden road with water permeability has the following beneficial effects:
(1) according to the green construction method of the ecological garden road with water permeability, disclosed by the invention, the aluminum oxide, the silicon dioxide, the coal ash, the silica fume and the slag powder are subjected to grain size matching according to different mesh numbers, so that the water permeability of the road surface can be improved, and the tensile strength of the road surface can be increased; melamine and furfural residues are also added, and are decomposed at high temperature in the high-temperature calcination process, so that fine gaps are formed inside aluminum oxide, silicon dioxide, coal ash, silica fume and slag powder, and the water permeability coefficient of the pavement is further improved due to the existence of the gaps, so that the water permeability of the pavement is improved;
(2) the green construction method of the ecological garden road with water permeability further comprises a reaction device, calcined substances are obtained and then are added into a reaction barrel of the reaction device through a feeding port, water is added into the reaction barrel, the pH value is adjusted to be 8-9, then gas is introduced into the reaction barrel, the pressure in the reaction barrel is 3-4 Mpa, materials in the reaction barrel are rotated at high speed through a motor under the high-pressure condition, and therefore gaps formed in the calcined substances can be further expanded, the water permeability coefficient of a road surface can be further improved, and the water permeability of the road surface is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a reaction apparatus of the green construction method of an ecological garden road with water permeability of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
A green construction method of an ecological garden road with water permeability comprises the following steps:
s1, paving a base layer after compacting the roadbed, wherein the base layer is formed by rolling and compacting plain soil, and then paving at least one permeable layer on the base layer;
the preparation method of the permeable layer comprises the following steps:
a1, uniformly mixing aluminum oxide, silicon dioxide, coal ash, silica fume and slag powder, then placing the mixture into an oxalic acid solution to be soaked for 3min, and filtering to obtain a mixture; wherein the mesh number of the aluminum oxide and the silicon dioxide is 30 meshes, the mesh number of the coal ash and the silicon ash is 50 meshes, and the mesh number of the slag powder is 80 meshes;
a2, mixing the mixture with melamine and furfural residues, stirring uniformly, heating to 200 ℃ at a speed of 2 ℃/min, then preserving heat for 2h, heating to 300 ℃ at a speed of 3 ℃/min, then preserving heat for 1h, heating to 600 ℃ at a speed of 5 ℃/min, preserving heat for 0.5h, and cooling to room temperature to obtain a calcined substance;
still include still including reaction unit, reaction unit includes:
the upper end of the reaction barrel 1 is provided with a feed inlet 11;
the output shaft of the motor 2 is connected with a connecting rod 3, the connecting rod 3 is fixed with the reaction barrel 1, and the motor 2 rotates to drive the reaction barrel 1 to rotate;
the gas storage tank 4 is used for storing high-pressure inert gas, the gas storage tank 4 is communicated with a gas guide pipe 5, the end part of the gas guide pipe 5 extends into the reaction barrel 1, and the reaction barrel 1 can rotate relative to the end part of the gas guide pipe 5;
specifically, the calcined substance obtained in A2 is added into a reaction barrel 1 through a feed inlet 11, water is added into the reaction barrel 1, the pH value is adjusted to 8, then a gas storage tank 4 is opened to introduce gas into the reaction barrel 1 to enable the pressure in the reaction barrel 1 to be 3Mpa, the rotating speed of the reaction barrel 1 is 800r/min through a motor 2, reaction is carried out for 0.5h to obtain a treated calcined substance, and then the treated calcined substance, a water reducing agent and water are mixed and then sequentially poured on a base layer, and vibration and pressurization forming are carried out to form the water permeable layer.
Specifically, the frequency of the vibration press molding was 60Hz, the amplitude was 0.6mm, and the vibration pressing pressure was 2 × 104Pa, and the dwell time is 20 s.
The mass ratio of the aluminum oxide to the silicon dioxide to the coal ash to the silica fume to the slag powder to the water reducing agent to the melamine to the furfural slag is 50:20:30:25:15:2:0.5: 1.
The water reducing agent is methacrylic acid-methyl acrylate polycarboxylate water reducing agent.
And S2, pouring concrete on the permeable layer, and curing and forming to form the decorative layer.
Example 2
A green construction method of an ecological garden road with water permeability comprises the following steps:
s1, paving a base layer after compacting the roadbed, wherein the base layer is formed by rolling and compacting plain soil, and then paving at least one permeable layer on the base layer;
the preparation method of the permeable layer comprises the following steps:
a1, uniformly mixing aluminum oxide, silicon dioxide, coal ash, silica fume and slag powder, then placing the mixture into an oxalic acid solution to be soaked for 3min, and filtering to obtain a mixture; wherein the mesh number of the aluminum oxide and the silicon dioxide is 40 meshes, the mesh number of the coal ash and the silicon ash is 60 meshes, and the mesh number of the slag powder is 85 meshes;
a2, mixing the mixture with melamine and furfural residues, stirring uniformly, heating to 220 ℃ at a speed of 3 ℃/min, then preserving heat for 2.5 hours, heating to 320 ℃ at a speed of 4 ℃/min, then preserving heat for 2 hours, heating to 650 ℃ at a speed of 8 ℃/min, preserving heat for 0.8 hour, and cooling to room temperature to obtain a calcined substance;
still include still including reaction unit, reaction unit includes:
the upper end of the reaction barrel 1 is provided with a feed inlet 11;
the output shaft of the motor 2 is connected with a connecting rod 3, the connecting rod 3 is fixed with the reaction barrel 1, and the motor 2 rotates to drive the reaction barrel 1 to rotate;
the gas storage tank 4 is used for storing high-pressure inert gas, the gas storage tank 4 is communicated with a gas guide pipe 5, the end part of the gas guide pipe 5 extends into the reaction barrel 1, and the reaction barrel 1 can rotate relative to the end part of the gas guide pipe 5;
specifically, the calcined substance obtained in A2 is added into a reaction barrel 1 through a feed inlet 11, water is added into the reaction barrel 1, the pH value is adjusted to 9, then gas is introduced into the reaction barrel 1 to enable the pressure in the reaction barrel 1 to be 3.5Mpa, the rotating speed of the reaction barrel 1 is 900r/min through a motor 2, reaction is carried out for 0.8h to obtain a treated calcined substance, and then the treated calcined substance, a water reducing agent and water are mixed and then sequentially poured on a base layer, and vibration and pressurization forming are carried out to form the water permeable layer.
Specifically, the frequency of the vibration press molding was 70Hz, the amplitude was 0.7mm, and the vibration pressing pressure was 3 × 104Pa, and the dwell time is 20 s.
The mass ratio of the aluminum oxide to the silicon dioxide to the coal ash to the silica fume to the slag powder to the water reducing agent to the melamine to the furfural slag is 55:25:35:28:18:2.5:0.8: 1.5.
The water reducing agent is allyl ether polycarboxylic acid water reducing agent.
Example 3
A green construction method of an ecological garden road with water permeability comprises the following steps:
s1, paving a base layer after compacting the roadbed, wherein the base layer is formed by rolling and compacting plain soil, and then paving at least one permeable layer on the base layer;
the preparation method of the permeable layer comprises the following steps:
a1, uniformly mixing aluminum oxide, silicon dioxide, coal ash, silica fume and slag powder, then placing the mixture into an oxalic acid solution to be soaked for 3min, and filtering to obtain a mixture; wherein the mesh number of the aluminum oxide and the silicon dioxide is 50 meshes, the mesh number of the coal ash and the silicon ash is 70 meshes, and the mesh number of the slag powder is 90 meshes;
a2, mixing the mixture with melamine and furfural residues, stirring uniformly, heating to 250 ℃ at a speed of 3 ℃/min, then preserving heat for 3h, heating to 350 ℃ at a speed of 6 ℃/min, then preserving heat for 2h, heating to 700 ℃ at a speed of 10 ℃/min, preserving heat for 1h, and cooling to room temperature to obtain a calcined substance;
still include still including reaction unit, reaction unit includes:
the upper end of the reaction barrel 1 is provided with a feed inlet 11;
the output shaft of the motor 2 is connected with a connecting rod 3, the connecting rod 3 is fixed with the reaction barrel 1, and the motor 2 rotates to drive the reaction barrel 1 to rotate;
the gas storage tank 4 is used for storing high-pressure inert gas, the gas storage tank 4 is communicated with a gas guide pipe 5, the end part of the gas guide pipe 5 extends into the reaction barrel 1, and the reaction barrel 1 can rotate relative to the end part of the gas guide pipe 5;
specifically, the calcined substance obtained in A2 is added into a reaction barrel 1 through a feed inlet 11, water is added into the reaction barrel 1, the pH value is adjusted to 9, then gas is introduced into the reaction barrel 1 to enable the pressure in the reaction barrel 1 to be 4Mpa, the rotating speed of the reaction barrel 1 is 1000r/min through a motor 2, reaction is carried out for 1h to obtain a treated calcined substance, then the treated calcined substance is mixed with a water reducing agent and water and then poured on a base layer in sequence, and vibration and pressurization forming are carried out to form the water permeable layer.
Specifically, the frequency of the vibration press molding was 80Hz, the amplitude was 0.7mm, the vibration pressing pressure was 4 × 104Pa, and the dwell time was 30 s.
The mass ratio of the aluminum oxide to the silicon dioxide to the coal ash to the silica fume to the slag powder to the water reducing agent to the melamine to the furfural slag is 60:30:40:30:20:3:1: 2.
The water reducing agent is an amide-imide polycarboxylic acid water reducing agent.
Comparative example 1
A green construction method of an ecological garden road with water permeability comprises the following steps:
s1, paving a base layer after compacting the roadbed, wherein the base layer is formed by rolling and compacting plain soil, and then paving at least one permeable layer on the base layer;
the preparation method of the permeable layer comprises the following steps:
a1, mixing aluminum oxide, silicon dioxide, coal ash, silica fume, slag powder, a water reducing agent and water, pouring on the base layer in sequence, and vibrating and pressurizing to form the permeable layer.
Specifically, the frequency of the vibration press molding was 60Hz, the amplitude was 0.6mm, and the vibration pressing pressure was 2 × 104Pa, and the dwell time is 20 s.
The mass ratio of the aluminum oxide to the silicon dioxide to the coal ash to the silica fume to the slag powder to the water reducing agent is 50:20:30:25:15: 2.
The water reducing agent is methacrylic acid-methyl acrylate polycarboxylate water reducing agent.
And S2, pouring concrete on the permeable layer, and curing and forming to form the decorative layer.
Comparative example 2
A green construction method of an ecological garden road with water permeability comprises the following steps:
s1, paving a base layer after compacting the roadbed, wherein the base layer is formed by rolling and compacting plain soil, and then paving at least one permeable layer on the base layer;
the preparation method of the permeable layer comprises the following steps:
a1, uniformly mixing aluminum oxide, silicon dioxide, coal ash, silica fume and slag powder, then placing the mixture into an oxalic acid solution to be soaked for 3min, and filtering to obtain a mixture; wherein the mesh number of the aluminum oxide and the silicon dioxide is 30 meshes, the mesh number of the coal ash and the silicon ash is 50 meshes, and the mesh number of the slag powder is 80 meshes;
a2, mixing the mixture with melamine and furfural residues, stirring uniformly, heating to 200 ℃ at a speed of 2 ℃/min, then preserving heat for 2h, heating to 300 ℃ at a speed of 3 ℃/min, then preserving heat for 1h, heating to 600 ℃ at a speed of 5 ℃/min, preserving heat for 0.5h, and cooling to room temperature to obtain a calcined substance;
then the calcined substance is mixed with a water reducing agent and water, and then poured on the base layer in sequence, vibrated and pressed to form the permeable layer.
Specifically, the frequency of the vibration press molding was 60Hz, the amplitude was 0.6mm, and the vibration pressing pressure was 2 × 104Pa, and the dwell time is 20 s.
The mass ratio of the aluminum oxide to the silicon dioxide to the coal ash to the silica fume to the slag powder to the water reducing agent to the melamine to the furfural slag is 50:20:30:25:15:2:0.5: 1.
The water reducing agent is methacrylic acid-methyl acrylate polycarboxylate water reducing agent.
And S2, pouring concrete on the permeable layer, and curing and forming to form the decorative layer.
The performance of the pavement obtained by the construction methods of the above examples 1 to 3 and comparative examples 1 to 2 was tested according to the standard of GB/T25993-2010 "water permeable pavement bricks and water permeable pavement slabs", and the results are shown in table 1 below.
TABLE 1 road surface Properties obtained by the construction methods of the different examples
As can be seen from table 1 above, the road surface obtained by the construction method of the present invention has good water permeability and the road surface has good tensile strength.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A green construction method of an ecological garden road with water permeability is characterized by comprising the following steps:
s1, paving a base layer after compacting the roadbed, and then paving at least one permeable layer on the base layer;
s2, pouring concrete on the permeable layer, and curing and forming to form a facing layer;
wherein, the permeable layer comprises the following raw materials:
the water reducing agent comprises aluminum oxide, silicon dioxide, coal ash, silica fume, slag powder, a water reducing agent, melamine and furfural slag, wherein the mesh number of the aluminum oxide and the silicon dioxide is 30-50 meshes, the mesh number of the coal ash and the silica fume is 50-70 meshes, and the mesh number of the slag powder is 80-90 meshes.
2. The green construction method of ecological garden roads with water permeability as claimed in claim 1, wherein: the preparation method of the permeable layer comprises the following steps:
a1, uniformly mixing aluminum oxide, silicon dioxide, coal ash, silica fume and slag powder, then placing the mixture into an oxalic acid solution to be soaked for 3-5 min, and filtering to obtain a mixture;
a2, mixing the mixture with melamine and furfural residues, uniformly stirring, heating to 200-250 ℃ at a speed of 2-3 ℃/min, then preserving heat for 2-3 h, heating to 300-350 ℃ at a speed of 3-6 ℃/min, then preserving heat for 1-2 h, heating to 600-700 ℃ at a speed of 5-10 ℃/min, preserving heat for 0.5-1 h, and cooling to room temperature to obtain a calcined substance;
and A3, mixing the calcined product obtained in A2 with a water reducing agent and water, pouring the mixture on a base layer in sequence, and vibrating and pressurizing the mixture to form the water permeable layer.
3. The green construction method of ecological garden roads with water permeability as claimed in claim 2, wherein: still include reaction unit, reaction unit includes:
the upper end of the reaction barrel is provided with a feed inlet;
the output shaft of the motor is connected with a connecting rod, the connecting rod is fixed with the reaction barrel, and the motor rotates to drive the reaction barrel to rotate;
the reaction device comprises a gas storage tank, a reaction barrel and a gas guide pipe, wherein high-pressure inert gas is stored in the gas storage tank, the gas storage tank is communicated with the gas guide pipe, the end part of the gas guide pipe extends into the reaction barrel, and the reaction barrel can rotate relative to the end part of the gas guide pipe;
adding the calcined substance obtained in A2 into a reaction barrel through a feed inlet, adding water into the reaction barrel, adjusting the pH value to 8-9, introducing gas into the reaction barrel to enable the pressure in the reaction barrel to be 3-4 Mpa, enabling the rotating speed of the reaction barrel to be 800-1000 r/min through a motor, reacting for 0.5-1 h to obtain a treated calcined substance, mixing the treated calcined substance with a water reducing agent and water, pouring the mixture on a base layer in sequence, and performing vibration and pressure molding to form a water permeable layer.
4. The green construction method of ecological garden roads with water permeability as claimed in claim 2, wherein: the frequency of the vibration and pressure molding is 60-80 Hz, and the amplitude is 0.6-0.7 mm.
5. The green construction method of water permeable ecological garden road as claimed in claim 2, wherein the vibration pressurizing pressure is 2 × 104～4×104Pa, and the pressure maintaining time is 20-30 s.
6. The green construction method of ecological garden roads with water permeability as claimed in claim 2, wherein: the mass ratio of the aluminum oxide to the silicon dioxide to the coal ash to the silica fume to the slag powder to the water reducing agent to the melamine to the furfural slag is 50-60: 20-30: 30-40: 25-30: 15-20: 2-3: 0.5-1: 1-2.
7. The green construction method of ecological garden roads with water permeability as claimed in claim 2, wherein: the water reducing agent is one of methacrylic acid-methyl acrylate polycarboxylate water reducing agent, allyl ether polycarboxylate water reducing agent or amide-imide polycarboxylate water reducing agent.
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