CN111021187A - Assembled permeable road edge stone and preparation method thereof - Google Patents
Assembled permeable road edge stone and preparation method thereof Download PDFInfo
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- CN111021187A CN111021187A CN201911310688.2A CN201911310688A CN111021187A CN 111021187 A CN111021187 A CN 111021187A CN 201911310688 A CN201911310688 A CN 201911310688A CN 111021187 A CN111021187 A CN 111021187A
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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
- E01C11/221—Kerbs or like edging members, e.g. flush kerbs, shoulder retaining means ; Joint members, connecting or load-transfer means specially for kerbs
- E01C11/222—Raised kerbs, e.g. for sidewalks ; Integrated or portable means for facilitating ascent or descent
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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
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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
- E01C11/227—Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
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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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention belongs to the technical field of concrete block products, and particularly relates to an assembled permeable road edge stone and a preparation method thereof. The assembly type water-permeable road edge stone comprises a road edge stone main body provided with a hollow channel, wherein the bottom surface of the hollow channel is positioned below the horizontal line of the road surface; the curbstone main body consists of a first structural member and a second structural member, the first structural member is arranged at the upper part of the curbstone main body, which is positioned at the horizontal line of the road surface, the second structural member is arranged at the lower part of the curbstone main body, which is positioned at the horizontal line of the road surface, and the hollow channel is formed after the first structural member and the second structural member are integrally formed; the first structural member is a water permeable structural member, and moisture between the filling and the curbstone main body and between the pavement and the curbstone main body permeates into the hollow channel through the first structural member and is discharged from the ground. The assembly type permeable road edge stone has the characteristics of light weight, good decorative effect and good drainage effect.
Description
Technical Field
The invention belongs to the technical field of concrete block products, and particularly relates to an assembled permeable road edge stone and a preparation method thereof.
Background
The curb stone is also called a kerb stone, is a strip-shaped block-shaped object arranged at the edge of a road surface, is used as the boundary of the road, separates the road from an isolation green belt or a sidewalk, and can play the roles of retaining water, retaining soil and the like and also play the role of attractive decoration of the road. Traditional curb stone is mostly solid natural stone or solid concrete prefabricated component, only has single isolation function, for getting rid of surface ponding, still needs to set up drain pipe, ditch in addition. In order to improve the situation, a hollow road edge stone or a road edge stone with a hydrophobic hole is designed, the scheme has the main advantages that the functions of the drainage pipeline on the roadside and the existing road edge stone are combined, the function of collecting road area water and separating roads is achieved, but the design also has the defects that the joint construction is not convenient enough, and a water collecting inlet is easy to block.
Therefore, the prior art is in need of improvement.
Disclosure of Invention
The invention aims to provide an assembled permeable road edge stone and a preparation method thereof, and aims to solve the technical problems that the construction of the interface of the existing road edge stone is not convenient enough and a water collecting inlet is easy to block.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides an assembled permeable road edge stone which is used between the edge of a road surface and filling, and comprises a road edge stone main body provided with a hollow channel, wherein the bottom surface of the hollow channel is positioned below the horizontal line of the road surface; the curbstone main body consists of a first structural member and a second structural member, the first structural member is arranged at the upper part of the curbstone main body, which is positioned at the horizontal line of the road surface, the second structural member is arranged at the lower part of the curbstone main body, which is positioned at the horizontal line of the road surface, and the hollow channel is formed after the first structural member and the second structural member are integrally formed; the first structural member is a water permeable structural member, and water between the filling and the curbstone main body and between the pavement and the curbstone main body is permeated into the hollow channel through the first structural member and is discharged from the underground; wherein the content of the first and second substances,
the first structural member is made of first concrete, and raw materials of the first concrete comprise the following components in parts by weight: 1100 parts of aggregate 700-; the water-to-glue ratio of the raw materials of the first concrete is 0.2-0.26;
the second structural member is made of a second concrete: the second concrete comprises the following raw materials in parts by weight: 800 portions of fine aggregate 550-containing materials, 950 portions of second inorganic active powder 650-containing materials, 900 portions of coarse aggregate 600-containing materials, 12-20 portions of second water reducing agent and 1-20 portions of second pigment; the water-to-glue ratio of the raw materials of the second concrete is 0.16-0.22.
The assembled permeable road edge stone provided by the invention is a novel road edge stone, wherein the main body of the road edge stone consists of a first structural member with a permeable function and an ultrahigh-performance second structural member with high compressive strength and containing coarse aggregate, and the first structural member and the second structural member are integrally formed to form a hollow channel. Therefore, the assembled permeable road edge stone provided by the invention has the characteristics of light weight, good decorative effect and good drainage effect, and has good application prospect in the field of road edge stone preparation.
The invention also provides a preparation method of the assembled permeable road edge stone, which comprises the following steps:
mixing the raw materials of the first concrete with water to obtain a first mixture; mixing the raw material of the second concrete with water to obtain a second mixture;
providing a curb stone mold, pouring the first mixture into the curb stone mold according to the designed size, vibrating, then continuously pouring the second mixture into the curb stone mold, and then laminating a film for curing, so that the first mixture forms the first structural member, and the second mixture forms the second structural member;
and after demolding, spraying a titanium dioxide layer on the surface of the second structural member, and then carrying out second maintenance treatment to obtain the assembled permeable road edge stone.
The preparation method provided by the invention has the advantages of simple process and low cost, and the finally obtained assembled water-permeable road edge stone has the characteristics of light weight, good decoration effect and good drainage effect, and has wide market application prospect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic cross-sectional structure view of an assembled water-permeable road edge stone provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a position of an assembled permeable road edge stone according to an embodiment of the present invention after construction;
wherein, in the figures, the respective reference numerals:
1: a curb body; 10: a hollow channel; 11: a first structural member; 12: a second structural member; 120: a bottom surface of the hollow channel;
2; a pavement; 3: and (6) filling soil.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In one aspect, the embodiment of the present invention provides an assembled water-permeable road edge stone, as shown in fig. 1 and 2, which is used between the edge of a road surface 2 and a filling 3, and includes a road edge stone body 1 provided with a hollow channel 10, a bottom surface 120 of which is located below the horizontal line of the road surface 2; the curbstone main body 1 consists of a first structural member 11 and a second structural member 12, the first structural member 11 is arranged at the upper part of the curbstone main body 1, which is positioned at the horizontal line of the road surface 2, the second structural member 12 is arranged at the lower part of the curbstone main body 1, which is positioned at the horizontal line of the road surface 2, and the hollow channel 10 is formed after the first structural member 11 and the second structural member 12 are integrally formed; the first structural member 11 is a water permeable structural member, and moisture between the filling 3 and the curbstone main body 1 and between the road surface 2 and the curbstone main body 1 is permeated into the hollow channel 10 through the first structural member 11 and is discharged from the ground; wherein the content of the first and second substances,
the first structural member 11 is made of first concrete, and the raw materials of the first concrete comprise the following components in parts by weight: 1100 parts of aggregate 700-; the water-to-glue ratio of the raw materials of the first concrete is 0.2-0.26;
the second structural element 12 is made of a second concrete: the second concrete comprises the following raw materials in parts by weight: 800 portions of fine aggregate 550-containing materials, 950 portions of second inorganic active powder 650-containing materials, 900 portions of coarse aggregate 600-containing materials, 12-20 portions of second water reducing agent and 1-20 portions of second pigment; the water-to-glue ratio of the raw materials of the second concrete is 0.16-0.22.
The assembled permeable road edge stone provided by the embodiment of the invention is a novel road edge stone, wherein the main body of the road edge stone consists of a first structural member with a permeable function and an ultrahigh-performance second structural member with high compressive strength and containing coarse aggregate, and the first structural member and the second structural member are integrally formed to form a hollow channel. Therefore, the assembly type water-permeable road edge stone provided by the embodiment of the invention has the characteristics of light weight, good decoration effect and good drainage effect, and has good application prospect in the field of road edge stone preparation.
The road edge stone is a building block product and is positioned between the edge of the road surface and filling after construction, the filling can be filling for isolating a green belt or a sidewalk, and the road surface can be a lane road surface, so that the green belt or the sidewalk is separated from a lane. In conclusion, the fabricated permeable road edge stone provided by the embodiment of the invention has the characteristics of light weight, good decoration effect, good drainage effect and the like, can reduce the water accumulation phenomenon of green belts and pavements, improves the drainage performance of the green belts and the pavements, only needs a small amount of mortar in fabricated construction, is neat and civilized in construction site, and has light weight and can save the construction cost; and the color is striking, so that the driver can be obviously warned, the lane and the sidewalk can be more easily distinguished at night, and the probability of causing traffic accidents is reduced.
The raw material of the first concrete is used for preparing the first concrete constituting the first structural member. Comprises the following components in parts by weight: 1100 parts of aggregate 700-; the water-to-glue ratio of the raw materials of the first concrete is 0.2-0.26; specifically, the aggregate may be 700 parts, 800 parts, 900 parts, 1000 parts, 1100 parts, etc., the first inorganic active powder may be 400 parts, 500 parts, 600 parts, etc., the first pigment may be 10 parts, 20 parts, 30 parts, etc., and the first water reducing agent may be 2 parts, 3 parts, 5 parts, etc. The raw materials can be prepared into concrete with good water permeability. The raw materials of the second concrete are used for preparing the second concrete for forming the second structural member. Comprises the following components in parts by weight: 800 portions of fine aggregate 550-containing materials, 950 portions of second inorganic active powder 650-containing materials, 900 portions of coarse aggregate 600-containing materials, 12-20 portions of second water reducing agent and 1-20 portions of second pigment; the water-to-glue ratio of the raw materials of the second concrete is 0.16-0.22; specifically, the fine aggregate may be 550 parts, 600 parts, 650 parts, 700 parts, 750 parts, 800 parts, etc., the second inorganic active powder 650 and 950 parts may be 650 parts, 700 parts, 800 parts, 950 parts, etc., the coarse aggregate may be 600 parts, 650 parts, 700 parts, 750 parts, 800 parts, 850 parts, 900 parts, etc., the second water reducing agent may be 12 parts, 14 parts, 15 parts, 16 parts, 18 parts, 20 parts, etc., and the second pigment may be 1 part, 3 parts, 5 parts, 8 parts, 10 parts, 15 parts, 20 parts, etc. The raw material can be prepared into the ultra-high performance concrete with the compressive strength of 100-150MPa and containing coarse aggregate.
Aggregate, also known as "aggregate", refers to a granular material in concrete and mortar that serves as a framework and a filler. The coarse aggregate generally refers to aggregate with a particle size of more than 5mm, and the fine aggregate generally refers to a granular loose material with a particle size of less than 4.75mm and plays a role of framework or filling in concrete.
In one embodiment, in the raw materials of the first concrete, the aggregate comprises one or more of ceramsite and coral sand with the particle size of 2-5 mm; the aggregate not only can reduce the weight of the curbstone, but also has good water absorption and storage effects, the ceramsite or the coral sand can absorb part of rainwater in rainy days, and after the pavement is dried, the ceramsite or the coral sand can release part of moisture to adjust the humidity in greenbelts above the filled soil and the air of the pavement. The first inorganic active powder comprises cement (such as 42.5 cement, 42.5R cement, 52.5R cement and the like) with the strength grade of more than or equal to 42.5 and a blended active powder material; wherein the blended active powder material comprises one or more of silica fume, mineral powder, glass micro-beads and zeolite powder. Specifically, the mass ratio of the cement, the silica fume, the mineral powder, the glass beads and the zeolite powder is 1 (0.5-1): 0-0.3): 0-0.2. The concrete with the water-cement ratio of 0.2-0.26 prepared from the first inorganic active powder can better meet the compression resistance requirement. The first water reducing agent can be a polycarboxylic acid type high-performance water reducing agent, and the first pigment can be various organic pigments and inorganic pigments which can be used for concrete. The water-gel ratio refers to the ratio of the water consumption of concrete to the consumption of a cementing material (such as inorganic active powder in the embodiment of the invention); the water-cement ratio of the raw materials of the first concrete is 0.2-0.26, so that the compressive strength of the prepared first concrete is more than or equal to 40MPa, the compressive strength of the first structural member is more than or equal to 40MPa, and the water permeability coefficient is more than or equal to 2mm/s, so that water can be well permeated in the assembly type water permeable road edge stone. In addition, the manufactured first structural member is a porous water permeable structural member, and the porous structure can absorb part of noise and can permeate rainwater into the hollow channel to be discharged underground. In particular, the hollow channel may be in communication with an underground drainage pipe, which may allow for better concentrated drainage.
In one embodiment, the coarse aggregate in the raw material of the second concrete comprises colored macadam with the grain diameter of 5-30 mm. The fine aggregate has a particle size of 0.15mm to 4.75mm, and specifically includes one or more of river sand, machine-made sand, and quartz sand. The coarse aggregate and the fine aggregate in parts by weight play a good skeleton role in the second concrete. The second inorganic active powder comprises cement (such as 42.5 cement, 42.5R cement, 52.5R cement and the like) with the strength grade of more than or equal to 42.5 and a blended active powder material; wherein the blended active powder material comprises one or more of silica fume, mineral powder, glass micro-beads and zeolite powder. Specifically, the mass ratio of the cement, the silica fume, the mineral powder, the glass beads and the zeolite powder is 1 (0.5-1): 0-0.3): 0-0.2. The second inorganic active powder is prepared into concrete with the water-cement ratio of 0.16-0.22, and can better meet the compression resistance requirement. The second water reducing agent can be a polycarboxylic acid high-performance water reducing agent, and the second pigment is various organic pigments and inorganic pigments for concrete, so that a good decorative effect is achieved. The water-cement ratio of the raw materials of the second concrete is 0.16-0.22, which can meet the requirement that the prepared second concrete reaches the compressive strength of 100-.
In one embodiment, in the fabricated water permeable road edge stone, the bottom surface of the hollow channel is a concave surface. This allows for a good storage of moisture (e.g., standing water or rain water) that permeates through the first structural member. Further, the width of the hollow channel is 100-200 mm, and the height of the hollow channel is 40-70 mm. Specifically, the width of the hollow channel is 150mm, and the height of the hollow channel is 60 mm.
In one embodiment, the height of the first structure is 2/3-3/4 of the height of the body of the curbstone. Specifically, the height of the first structural member is 2/3 the height of the body of the curbstone.
In one embodiment, the thickness of the curbstone main body at the upper end of the hollow channel (i.e., the thickness of the first structural member at the upper end of the hollow channel) is 50-100 mm, and the thickness of the curbstone main body at the lower end of the hollow channel (i.e., the thickness of the second structural member at the lower end of the hollow channel) is 50-100 mm. Specifically, the thickness of the body of the curbstone at the upper end of the hollow channel is the same as the thickness at the lower end of the hollow channel.
In one embodiment, the thickness of the side, close to the road surface, of the road edge stone main body is 50-100 mm, and the thickness of the side, close to the filling soil, of the road edge stone main body is 50-100 mm. Specifically, the thickness of the body of the curbstone on the side close to the road surface is the same as the thickness of the body of the curbstone on the side close to the filling.
In one embodiment, the body of the curbstone is provided with mating rebates at each end of the hollow channel. Namely, the two ends of the assembled permeable road edge stones are respectively provided with the rectangular tongue-and-groove, and when the road edge stones are assembled, the rectangular tongue-and-groove is inserted into the rectangular groove, so that the assembled permeable road edge stones can be assembled and communicated through the tongue-and-groove.
After the assembly type permeable road edge stone is maintained, the outer surface of the second structural member is polished by a polishing process, the color aggregate is exposed, and the decorative effect is enhanced. Furthermore, a titanium dioxide layer is sprayed on the outer surface of the first structural member, and after the assembled water-permeable curbstone is cured, a titanium dioxide self-cleaning coating is sprayed on the surface of the first structural member, so that automobile exhaust can be decomposed, and air can be purified. Specifically, the thickness of the titanium dioxide layer is 0.01-0.1 mm.
On the other hand, the embodiment of the invention also provides a preparation method of the assembled water-permeable road edge stone, which comprises the following steps:
s01: mixing the raw materials of the first concrete with water to obtain a first mixture; mixing the raw material of the second concrete with water to obtain a second mixture;
s02: providing a curb stone mold, pouring the first mixture into the curb stone mold according to the designed size, vibrating, then continuously pouring the second mixture into the curb stone mold, and then laminating a film for curing, so that the first mixture forms the first structural member, and the second mixture forms the second structural member;
s03: and after demolding, spraying a titanium dioxide layer on the surface of the second structural member, and then carrying out second maintenance treatment to obtain the assembled permeable road edge stone.
The preparation method provided by the embodiment of the invention has the advantages of simple process and low cost, and the finally obtained assembled water-permeable road edge stone has the characteristics of light weight, good decoration effect and good drainage effect, and has wide market application prospect.
The specific preparation process of the first mixture comprises the following steps: firstly, stirring all aggregates, the first pigment and 40% by weight of water for 60-90 seconds in advance, then adding all the second inorganic active powder, stirring for 60-90 seconds, then adding all the additives (the first water reducing agent) and the rest 60% of water, and fully stirring for 90-120 seconds to obtain a first mixture for later use. Wherein the overall working performance of the stirring first mixture is 10-30 seconds in a Vickers consistency test.
The specific preparation process of the second mixture comprises the following steps: premixing all fine aggregate, coarse aggregate and second pigment powder for 2-4 minutes, adding all second inorganic active powder and 40% of water by weight, stirring for 1-2 minutes, adding all additives (second water reducing agents) and the rest 60% of water, and fully stirring for 7-9 minutes to obtain a second mixture for later use; wherein the working performance expansion degree of the second mixture is 550-750 mm.
In a specific embodiment, the preparation method of the fabricated permeable road edge stone comprises the following manufacturing steps:
s1, calculating the consumption of raw materials according to the raw material formula of the first concrete of the fabricated permeable curbstone, firstly stirring all aggregates, first pigment and 40% water by weight for 60-90 seconds in advance, then adding all second inorganic active powder, stirring for 60-90 seconds, then adding all additives and the rest 60% water, and fully stirring for 90-120 seconds to obtain a first mixture (the whole working performance is 10-30 seconds in a Vibrodensity test);
s2, calculating the use amount of each raw material according to the raw material formula of the second concrete of the fabricated permeable road edge stone, premixing all fine aggregate, coarse aggregate and pigment powder for 2-4 minutes, adding all second inorganic active powder and 40% of water by weight, stirring for 1-2 minutes, adding all additives and the rest 60% of water, and fully stirring for 7-9 minutes to obtain a second mixture (the working performance expansion degree is 550-750 mm);
s3, pouring the first mixture obtained in the step S1 into a mold design, placing a vibration table to vibrate for 10-20S, and pouring 2/3 with the length being the height of the main body of the curbstone;
s4, pouring the second mixed material obtained in the step S2 into a mold with one end of the step S3 poured with the first mixed material, allowing the mold to automatically level and smooth on the surface, and performing film coating and curing for 3 days (enabling the first mixed material to form the first structural member and the second mixed material to form the second structural member);
s5, demolding the assembled water-permeable road edge stone obtained in the step S4, spraying a layer of titanium dioxide self-cleaning paint on the surface of the second structural member, and continuously watering and maintaining for 7 days to obtain a finished product.
The invention is described in further detail with reference to a part of the test results, which are described in detail below with reference to specific examples.
Example 1
The assembled permeable road edge stone is used between the edge of a road surface and filling soil, and comprises a road edge stone main body provided with a hollow channel, wherein the bottom surface of the hollow channel is positioned below the horizontal line of the road surface; the curbstone main body consists of a first structural member and a second structural member, the first structural member is arranged at the upper part of the curbstone main body, which is positioned at the horizontal line of the road surface, the second structural member is arranged at the lower part of the curbstone main body, which is positioned at the horizontal line of the road surface, and the hollow channel is formed after the first structural member and the second structural member are integrally formed; the first structural member is a water permeable structural member, and water between the filling and the curbstone main body and between the pavement and the curbstone main body is permeated into the hollow channel through the first structural member and is discharged from the underground; wherein the content of the first and second substances,
the first structural member is made of first concrete, and raw materials of the first concrete comprise the following components in parts by weight: 700 parts of aggregate (coral sand with the particle size of 2-5 mm), 400 parts of first inorganic active powder, 10 parts of first pigment and 2 parts of first water reducing agent; the water-to-glue ratio of the raw materials of the first concrete is 0.2;
the second structural member is made of a second concrete: the second concrete comprises the following raw materials in parts by weight: 550 parts of fine aggregate, 650 parts of second inorganic active powder, 600 parts of coarse aggregate, 12 parts of second water reducing agent and 1 part of second pigment; the water-cement ratio of the raw materials of the second concrete is 0.16.
Example 2
An assembly type permeable road edge stone was the same as in example 1 except that the raw material formulations of the first concrete and the second concrete were different.
In this embodiment, the raw materials of the first concrete include the following components in parts by weight: 1100 parts of aggregate (coral sand), 600 parts of first inorganic active powder, 30 parts of first pigment and 5 parts of first water reducer; the water-cement ratio of the raw materials of the first concrete is 0.26. The raw materials of the second concrete comprise the following components in parts by weight: 800 parts of sand, 950 parts of second inorganic active powder, 900 parts of coarse aggregate, 20 parts of second water reducer and 20 parts of second pigment; the water-cement ratio of the raw materials of the second concrete is 0.22.
Example 3
An assembly type permeable road edge stone was the same as in example 1 except that the raw material formulations of the first concrete and the second concrete were different.
In this embodiment, the raw materials of the first concrete include the following components in parts by weight: 800 parts of aggregate (coral sand with the particle size of 2-5 mm), 450 parts of first inorganic active powder, 15 parts of first pigment and 3 parts of first water reducing agent; the water-cement ratio of the raw materials of the first concrete is 0.22. The raw materials of the second concrete comprise the following components in parts by weight: 610 parts of sand, 750 parts of second inorganic active powder, 700 parts of coarse aggregate, 14 parts of second water reducer and 10 parts of second pigment; the water-cement ratio of the raw materials of the second concrete is 0.18.
Example 4
An assembly type permeable road edge stone was the same as in example 1 except that the raw material formulations of the first concrete and the second concrete were different.
In this embodiment, the raw materials of the first concrete include the following components in parts by weight: 1000 parts of aggregate (ceramsite with the particle size of 2-5 mm), 550 parts of first inorganic active powder, 25 parts of first pigment and 4 parts of first water reducing agent; the water-to-glue ratio of the raw materials of the first concrete is 0.24; the raw materials of the second concrete comprise the following components in parts by weight: 740 parts of sand, 850 parts of second inorganic active powder, 800 parts of coarse aggregate, 18 parts of second water reducing agent and 12 parts of second pigment; the water-to-glue ratio of the raw materials of the second concrete is 0.2.
Example 5
An assembly type permeable road edge stone was the same as in example 1 except that the raw material formulations of the first concrete and the second concrete were different.
In this embodiment, the raw materials of the first concrete include the following components in parts by weight: 900 parts of aggregate (ceramsite with the particle size of 2-5 mm), 500 parts of first inorganic active powder, 20 parts of first pigment and 3.5 parts of first water reducing agent; the water-to-glue ratio of the raw materials of the first concrete is 0.23; the raw materials of the second concrete comprise the following components in parts by weight: 675 parts of sand, 800 parts of second inorganic active powder, 750 parts of coarse aggregate, 16 parts of second water reducing agent and 11 parts of second pigment; the water-cement ratio of the raw materials of the second concrete is 0.19.
Comparative example 1
An assembly type permeable road edge stone was the same as in example 1 except that the aggregate of the first concrete was machine-made sand.
Comparative example 2
An assembly type permeable road edge stone is the same as that in example 1 except that the raw material formula of the first concrete is 300 parts of the first inorganic active powder.
Comparative example 3
An assembly type permeable road side stone was the same as in example 1 except that 350 parts of the aggregate was used as a raw material formulation of the first concrete.
The test pieces of the first structural member of the fabricated permeable road edge stone prepared in the above examples 1 to 5 and comparative examples 1 to 3 were subjected to performance testing, the bending strength and the compressive strength were tested according to the standard of the test method for mechanical properties of ordinary concrete GB/T50081-2016, the water permeability coefficient was tested according to the technical specification of permeable concrete pavement CJJ134-2009, and the test results are shown in table 1:
TABLE 1
As shown in table 1, the aggregate of the first concrete of comparative example 1 was machine-made sand, and compared to example 1, the compressive strength and the flexural strength of the first concrete (i.e., pervious concrete) of comparative example 1 were increased more, but the permeability coefficient was decreased more; comparative example 2 300 parts of the first concrete inorganic active powder, compared with example 1, the first concrete (i.e. pervious concrete) of comparative example 2 has much decreased compressive strength and bending strength and much increased permeability coefficient; comparative example 3 the first concrete of comparative example 3, which had 350 parts of aggregate, showed a greater decrease in compressive strength, flexural strength and water permeability coefficient than example 1. Through a large number of tests, the aggregate type and the inorganic active powder selected by the invention are optimal.
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 and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The assembly type water-permeable road edge stone is used between the edge of a road surface and filling soil, and is characterized by comprising a road edge stone main body provided with a hollow channel, wherein the bottom surface of the hollow channel is positioned below the horizontal line of the road surface; the curbstone main body consists of a first structural member and a second structural member, the first structural member is arranged at the upper part of the curbstone main body, which is positioned at the horizontal line of the road surface, the second structural member is arranged at the lower part of the curbstone main body, which is positioned at the horizontal line of the road surface, and the hollow channel is formed after the first structural member and the second structural member are integrally formed; the first structural member is a water permeable structural member, and water between the filling and the curbstone main body and between the pavement and the curbstone main body is permeated into the hollow channel through the first structural member and is discharged from the underground; wherein the content of the first and second substances,
the first structural member is made of first concrete, and raw materials of the first concrete comprise the following components in parts by weight: 1100 parts of aggregate 700-; the water-to-glue ratio of the raw materials of the first concrete is 0.2-0.26;
the second structural member is made of a second concrete: the second concrete comprises the following raw materials in parts by weight: 800 portions of fine aggregate 550-containing materials, 950 portions of second inorganic active powder 650-containing materials, 900 portions of coarse aggregate 600-containing materials, 12-20 portions of second water reducing agent and 1-20 portions of second pigment; the water-to-glue ratio of the raw materials of the second concrete is 0.16-0.22.
2. The fabricated permeable road side stone of claim 1, wherein the first inorganic active powder in the raw materials of the first concrete comprises cement with strength grade not less than 42.5 and blended active powder material; wherein the blended active powder material comprises one or more of silica fume, mineral powder, glass micro-beads and zeolite powder; and/or the presence of a gas in the gas,
the second inorganic active powder in the raw materials of the second concrete comprises cement with the strength grade of more than or equal to 42.5 and a blended active powder material; wherein the blended active powder material comprises one or more of silica fume, mineral powder, glass micro-beads and zeolite powder.
3. The fabricated permeable road side stone of claim 1, wherein the aggregate in the raw material of the first concrete comprises one or more of ceramsite and coral sand with a particle size of 2-5 mm; and/or the presence of a gas in the gas,
the fine aggregate in the raw materials of the second concrete comprises one or more of river sand, machine-made sand and quartz sand with the particle size of 0.15-4.75 mm; and/or the presence of a gas in the gas,
the coarse aggregate in the raw materials of the second concrete comprises color macadam with the grain diameter of 5-30 mm.
4. The fabricated permeable road side stone according to claim 1, wherein the width of the hollow channel is 100 to 200mm, and the height of the hollow channel is 40 to 70 mm.
5. The fabricated permeable road edge stone of claim 1, wherein the thickness of the road edge stone body at the upper end and the lower end of the hollow channel is 50-100 mm; and/or the presence of a gas in the gas,
the thickness of the side, close to the road surface, of the curbstone main body and the thickness of the side, close to the filling soil, of the curbstone main body are both 50-80 mm.
6. The fabricated permeable curbstone of claim 1, wherein the first structural member has a height of 2/3-3/4 of a height of the curbstone body.
7. The fabricated water permeable road side stone according to any one of claims 1 to 6, wherein the outer surface of the first structural member is coated with a titanium dioxide layer.
8. A method of manufacturing an assembled water permeable road edge stone according to any one of claims 1 to 7, comprising the steps of:
mixing the raw materials of the first concrete with water to obtain a first mixture; mixing the raw material of the second concrete with water to obtain a second mixture;
providing a curb stone mold, pouring the first mixture into the curb stone mold according to the designed size, vibrating, then continuously pouring the second mixture into the curb stone mold, and then laminating a film for curing, so that the first mixture forms the first structural member, and the second mixture forms the second structural member;
and after demolding, spraying a titanium dioxide layer on the surface of the second structural member, and then carrying out second maintenance treatment to obtain the assembled permeable road edge stone.
9. The preparation method of claim 8, wherein the pouring of the first mixture into the curb mold is performed for 10-20 seconds with vibration treatment.
10. The method of claim 8, wherein the first compound has an overall work function veb consistency of 10 to 30 seconds; and/or the presence of a gas in the gas,
the working performance expansion degree of the second mixture is 550-750 mm.
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