CN113716913A - Regenerated fiber concrete joggle joint luminous kerb and preparation method thereof - Google Patents
Regenerated fiber concrete joggle joint luminous kerb and preparation method thereof Download PDFInfo
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- CN113716913A CN113716913A CN202110851677.6A CN202110851677A CN113716913A CN 113716913 A CN113716913 A CN 113716913A CN 202110851677 A CN202110851677 A CN 202110851677A CN 113716913 A CN113716913 A CN 113716913A
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- 239000000835 fiber Substances 0.000 title claims abstract description 79
- 239000004567 concrete Substances 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000002699 waste material Substances 0.000 claims abstract description 57
- 239000011449 brick Substances 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims description 45
- 239000004575 stone Substances 0.000 claims description 36
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 239000004576 sand Substances 0.000 claims description 30
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 24
- 239000004568 cement Substances 0.000 claims description 24
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 16
- 239000011398 Portland cement Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 2
- 238000003801 milling Methods 0.000 claims 1
- 230000008929 regeneration Effects 0.000 claims 1
- 238000011069 regeneration method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 14
- 238000010276 construction Methods 0.000 description 8
- 239000011210 fiber-reinforced concrete Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/535—Kerbs or road edgings specially adapted for alerting road users
- E01F9/541—Kerbs
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/535—Kerbs or road edgings specially adapted for alerting road users
- E01F9/547—Kerbs or road edgings specially adapted for alerting road users illuminated
-
- 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
- C04B2111/807—Luminescent or fluorescent 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)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the technical field of concrete, and particularly relates to a regenerated fiber concrete joggle joint luminous curb and a preparation method thereof. The light weight characteristic of the waste building ceramsite brick is applied to the preparation of the kerbstone, so that the defects of high quality and high production and transportation cost of the traditional kerbstone are overcome; the self-luminous material is coated on the kerbstone, so that the driving safety at night is improved, the electric energy is saved, and the road is beautified; be the joggle form with the curb design for the curb can the joggle connection, has avoided traditional curb because the level and smooth of side makes the connection insecure, very easily takes place the phenomenon of dislocation and damage, has improved the life of curb.
Description
Technical Field
The invention belongs to the technical field of concrete, and particularly relates to a regenerated fiber concrete joggle joint luminous curb and a preparation method thereof.
Background
The production amount of the construction waste per year in China can reach more than 20 hundred million tons, and the construction waste accounts for 30 to 40 percent of the total amount of the urban waste. In 2025, the newly-added building area in China is estimated to reach 350 hundred million square meters, and the building rubbish city enclosing will become a public management problem facing the city.
A curb is a monument provided between a road surface and another structure. Curb stones are generally required to be arranged between a separation zone and a road surface of an urban road and between a sidewalk and the road surface, and the curb stones are usually required to be arranged at the edge of a central separation zone of a road, the edge of the right side of a traffic lane or the edge of the outer side of a road shoulder. However, the existing kerbstone has many disadvantages, the traditional kerbstone has large mass and higher production and transportation cost; the night driving has the advantages that the illumination is limited, the visual field is narrow and small, the visual distance is short, most suburb rural roads are not illuminated, traffic accidents are easy to happen due to the fact that the roadside is not clearly seen, huge damage is caused to car owners and pedestrians, and huge loss is caused to economy; the traditional curb is insecure in connection because of the smoothness of the side face, dislocation and damage phenomena are easy to occur, and the service life of the curb is shortened.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, and the regenerated fiber concrete joggle luminescent kerb is provided, wherein waste ceramsite bricks in construction waste are processed into the kerb, and meanwhile, the kerb is designed into a joggle connection form and coated with a self-luminescent material, so that the construction waste can be recycled, the kerb can be joggled and connected, the kerb can self-luminesce at night, the environment is improved, and the energy is saved and the environment is protected; the invention also provides a preparation method of the composition.
The invention is realized by adopting the following technical scheme:
the invention provides a regenerated fiber concrete joggle light-emitting kerb, wherein a joggle boss is arranged at the front end of the kerb, a joggle groove is formed in the rear end of the kerb in a matched mode with the joggle boss, a self-luminous material is coated on the surface of the kerb, and the kerb comprises the following components in percentage by volume:
98% -98.55% of recycled concrete;
0.95 to 1 percent of steel fiber;
0.5 to 1 percent of ultra-high molecular weight polyethylene fiber;
wherein: the recycled concrete comprises the following main components in parts by weight: 480-490 parts of cement, 610-630 parts of sand, 283-565 parts of broken stone and 565-863 parts of waste ceramsite brick.
Wherein:
preferably, the self-luminous material is fluorescent powder, and the self-luminous material coated on the surface of the curb is preferably a plurality of diamonds.
Preferably, the cement is portland cement with a strength grade of 42.5.
Preferably, the sand has a particle size of 0.35-0.45 mm and a fineness modulus of 2.3-2.7.
Preferably, the particle size of the crushed stone is 5-20 mm, wherein the mass ratio of the crushed stone with the particle size of 5-10 mm to the crushed stone with the particle size of 10-20 mm in the crushed stone is preferably 3: 7.
Preferably, the steel fiber is steel ingot milled steel fiber, and further, the steel fiber has the tensile strength of 700MPa, the length of 30-34 mm, the width of 2.6mm, the length-diameter ratio of 35-45 and the density of 7850kg/m3。
Preferably, the ultra-high molecular weight polyethylene fiber is a short ultra-high molecular weight polyethylene fiber with the length of 5-7 mm, the diameter of 20-50 μm, the length-diameter ratio of 600-1500, the elongation of 2.5-3.0 percent and the density of 0.97-0.98 g/cm3Tensile strength 3000MPa, elastic modulus 100 GPa.
Preferably, the particle size of the waste ceramsite brick is 5-20 mm, wherein the mass ratio of the waste ceramsite brick with the particle size of 5-10 mm to the waste ceramsite brick with the particle size of 10-20 mm in the waste ceramsite brick is preferably 3: 7.
The preparation method of the regenerated fiber concrete joggle luminescent kerb comprises the following steps:
(1) crushing the waste ceramsite bricks, mixing the crushed waste ceramsite bricks with cement, sand and crushed stone, and then adding water and stirring to obtain a recycled concrete mixture;
(2) adding steel fibers and ultra-high molecular weight polyethylene fibers into the recycled concrete mixture, stirring and mixing, and then placing into a mold for molding;
(3) and demolding the molded green body, then maintaining under standard conditions, and smearing a self-luminous material on the surface of the curb after the maintenance is finished to obtain the regenerated fiber concrete joggle joint luminous curb.
As a novel composite material, the steel fiber concrete has the characteristics of superior performance, simplicity and convenience in construction, strong operability, low price and the like, and can be applied to roads and bridges to obviously improve the wear resistance, frost resistance, crack resistance and fatigue resistance of the roads and bridges. Therefore, the steel fiber concrete is widely applied to concrete structures of ports and navigation channels, highway bridges and culverts, tunnel engineering, industrial and civil buildings in northern severe cold areas and the like. The ultrahigh molecular weight polyethylene fiber has the highest specific modulus and specific strength, so that the overall quality can be obviously improved when a certain amount of fiber is doped into concrete, and excellent anti-cracking and toughening capabilities are shown.
The invention utilizes the waste building ceramsite bricks to the maximum extent, aims to design the light kerbstone which is environment-friendly, has a warning effect and good integrity, and is popularized in the market. The recycled concrete curb is made of the light waste ceramsite bricks, and in consideration of low strength and poor durability of the waste recycled aggregate, the durability of the recycled concrete curb is improved by adding the high-strength fibers, and the mechanical property of the recycled concrete curb is improved; self-luminous materials are coated on the surface of the kerbstone, so that the driving safety at night is improved, the electric energy is saved, and the road is beautified; the side face of the kerbstone is made into a special shape, and the two kerbstones can be joggled, so that the kerbstone has higher integrity and practicability.
The flexural strength of the kerbstone is not lower than 3.0MPa, and the compressive strength of the kerbstone is not lower than 30 MPa.
Compared with the prior art, the invention has the following beneficial effects:
1. the light weight characteristic of the waste building ceramsite brick is applied to the preparation of the kerbstone, so that the defects of high quality and high production and transportation cost of the traditional kerbstone are overcome; the self-luminous material is coated on the kerbstone, so that the driving safety at night is improved, the electric energy is saved, and the road is beautified; be the joggle form with the curb design for the curb can the joggle connection, has avoided traditional curb because the level and smooth of side makes the connection insecure, very easily takes place the phenomenon of dislocation and damage, has improved the life of curb.
2. The invention utilizes the construction waste to prepare the high-quality recycled coarse aggregate, and carries out engineering application on the recycled concrete product prepared on the basis of the high-quality recycled coarse aggregate, thereby not only reducing the generation and the discharge of the construction waste in the engineering construction process, but also saving natural resources and protecting the ecological environment.
3. The invention is beneficial to prolonging the service life of the curb and promoting the realization of sustainable health development by designing a special joggle joint mode.
4. The invention has the advantages of good durability, high quality and low price, etc., can reduce the municipal investment cost and better enhance the happiness of people.
5. The luminous material is coated on the luminous material, so that the luminous material can absorb light energy in the daytime and can be self-luminous at night, the public can conveniently go out at night, and a good traveling environment is created.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic structural view of a curb of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic view of a curb connection according to the present invention;
in the figure: 1. a curb; 2. joggling the boss; 3. a self-luminescent material; 4. the joggle groove.
Detailed Description
The invention is further described below with reference to the accompanying drawings and examples.
As shown in fig. 2-4, the front end of the kerb 1 of the present invention is provided with a joggle boss 2, the rear end of the kerb 1 is provided with a joggle groove 4 in cooperation with the joggle boss 2, and the surface of the kerb is coated with a self-luminous material 3.
Example 1
The regenerated fiber concrete joggle luminescent kerb comprises the following components in percentage by volume: 98.5 percent of recycled concrete, 1 percent of steel fiber and 0.5 percent of ultrahigh molecular weight polyethylene fiber. The recycled concrete comprises the following components: 490 parts of cement, 620 parts of sand, 560 parts of broken stone, 570 parts of waste ceramsite brick and 200 parts of water.
The particle size of the crushed stone is 5-20 mm, wherein the mass ratio of the crushed stone with the particle size of 5-10 mm to the crushed stone with the particle size of 10-20 mm in the crushed stone is preferably 3: 7.
The particle size of the waste ceramsite brick is 5-20 mm, wherein the mass ratio of the waste ceramsite brick with the particle size of 5-10 mm to the waste ceramsite brick with the particle size of 10-20 mm in the waste ceramsite brick is preferably 3: 7.
The sand is medium sand, the water content is 3%, the particle size is 0.35-0.45 mm, and the fineness modulus is 2.5. The cement is portland cement with a strength grade of 42.5.
The adopted steel fiber is steel ingot milled steel fiber with the tensile strength of 700MPa, the length of 30-34 mm and the widthThe degree is 2.6mm, the length-diameter ratio is 35-45, and the density is 7850kg/m3。
The adopted ultra-high molecular weight polyethylene fiber is short ultra-high molecular weight polyethylene fiber, the length is 5-7 mm, the diameter is 20-50 μm, the length-diameter ratio is 600-1500, the elongation is 2.5-3.0%, and the density is 0.97-0.98 g/cm3Tensile strength 3000MPa, elastic modulus 100 GPa.
The preparation steps are as follows:
(1) crushing the waste ceramsite bricks, adding the crushed waste ceramsite bricks, cement, sand and broken stone into a stirrer to be mixed for 100s, adding water to the mixture, and continuously stirring the mixture for 80s to obtain a recycled concrete mixture;
(2) adding steel fibers and ultra-high molecular weight polyethylene fibers into the recycled concrete mixture, stirring and mixing for 180s, and then placing into a mold for molding;
(3) and (3) demolding the molded green body, curing for 28 days under standard conditions, and smearing a self-luminous material on the surface of the curb after the curing is finished to obtain the regenerated fiber concrete joggle joint luminous curb.
Example 2
The regenerated fiber concrete joggle luminescent kerb comprises the following components in percentage by volume: 98% of recycled concrete, 1% of steel fiber and 1% of ultra-high molecular weight polyethylene fiber. The recycled concrete comprises the following components: 490 parts of cement, 613 parts of sand, 565 parts of broken stone, 570 parts of waste ceramsite brick and 220 parts of water.
The particle size of the crushed stone is 5-20 mm, wherein the mass ratio of the crushed stone with the particle size of 5-10 mm to the crushed stone with the particle size of 10-20 mm in the crushed stone is preferably 3: 7.
The particle size of the waste ceramsite brick is 5-20 mm, wherein the mass ratio of the waste ceramsite brick with the particle size of 5-10 mm to the waste ceramsite brick with the particle size of 10-20 mm in the waste ceramsite brick is preferably 3: 7.
The sand is medium sand, the water content is 4%, the particle size is 0.35-0.45 mm, and the fineness modulus is 2.5. The cement is portland cement with a strength grade of 42.5.
The adopted steel fiber is steel ingot milled steel fiber, the tensile strength is 700MPa, the length is 30-34 mm, the width is 2.6mm, the length-diameter ratio is 35-45, and the density is 7850kg/m3。
The adopted ultra-high molecular weight polyethylene fiber is short ultra-high molecular weight polyethylene fiber, the length is 5-7 mm, the diameter is 20-50 μm, the length-diameter ratio is 600-1500, the elongation is 2.5-3.0%, and the density is 0.97-0.98 g/cm3Tensile strength 3000MPa, elastic modulus 100 GPa.
The preparation steps are as follows:
(1) crushing the waste ceramsite bricks, adding the crushed waste ceramsite bricks, cement, sand and broken stone into a stirrer to be mixed for 100s, adding water to the mixture, and continuously stirring the mixture for 80s to obtain a recycled concrete mixture;
(2) adding steel fibers and ultra-high molecular weight polyethylene fibers into the recycled concrete mixture, stirring and mixing for 180s, and then placing into a mold for molding;
(3) and (3) demolding the molded green body, curing for 28 days under standard conditions, and smearing a self-luminous material on the surface of the curb after the curing is finished to obtain the regenerated fiber concrete joggle joint luminous curb.
Example 3
The regenerated fiber concrete joggle luminescent kerb comprises the following components in percentage by volume: 98% of recycled concrete, 1% of steel fiber and 1% of ultra-high molecular weight polyethylene fiber. The recycled concrete comprises the following components: 480 parts of cement, 610 parts of sand, 285 parts of broken stone, 850 parts of waste ceramsite brick and 220 parts of water.
The particle size of the crushed stone is 5-20 mm, wherein the mass ratio of the crushed stone with the particle size of 5-10 mm to the crushed stone with the particle size of 10-20 mm in the crushed stone is preferably 3: 7.
The particle size of the waste ceramsite brick is 5-20 mm, wherein the mass ratio of the waste ceramsite brick with the particle size of 5-10 mm to the waste ceramsite brick with the particle size of 10-20 mm in the waste ceramsite brick is preferably 3: 7.
The sand is medium sand, the water content is 3%, the particle size is 0.35-0.45 mm, and the fineness modulus is 2.4. The cement is portland cement with a strength grade of 42.5.
The adopted steel fiber is steel ingot milled steel fiber, the tensile strength is 700MPa, the length is 30-34 mm, the width is 2.6mm, the length-diameter ratio is 35-45, and the density is 7850kg/m3。
Ultra-high molecular weight compounds usedThe polyethylene fiber is short ultra-high molecular weight polyethylene fiber with the length of 5-7 mm, the diameter of 20-50 μm, the length-diameter ratio of 600-1500, the elongation of 2.5-3.0 percent and the density of 0.97-0.98 g/cm3Tensile strength 3000MPa, elastic modulus 100 GPa.
The preparation steps are as follows:
(1) crushing the waste ceramsite bricks, adding the crushed waste ceramsite bricks, cement, sand and broken stone into a stirrer to be mixed for 100s, adding water to the mixture, and continuously stirring the mixture for 80s to obtain a recycled concrete mixture;
(2) adding steel fibers and ultra-high molecular weight polyethylene fibers into the recycled concrete mixture, stirring and mixing for 180s, and then placing into a mold for molding;
(3) and (3) demolding the molded green body, curing for 28 days under standard conditions, and smearing a self-luminous material on the surface of the curb after the curing is finished to obtain the regenerated fiber concrete joggle joint luminous curb.
Comparative example 1
The volume percentage of the steel fiber reinforced concrete related to the comparative example is as follows: 100 percent of concrete. The concrete comprises the following components in parts by mass: 489 parts of cement, 620 parts of sand, 867 parts of broken stone, 285 parts of waste ceramsite brick and 200 parts of water. Adding cement, sand, broken stone and waste ceramsite bricks into a stirrer according to the mass parts, stirring for 100s, adding water according to the mass parts into the stirrer, stirring for 80s to obtain a recycled concrete mixture, and curing for 28 days under standard conditions to obtain waste ceramsite brick recycled concrete; the comparative example does not contain ultra-high molecular weight polyethylene fibers and steel fibers.
Wherein, the rubble is divided into two kinds: the particle size is 5-10 mm, the particle size is 10-20 mm, and the mass ratio is 3: 7. The waste ceramsite bricks are divided into two types: the particle size is 5-10 mm, the particle size is 10-20 mm, and the mass ratio is 3: 7. The sand is medium sand, the water content is 3%, the particle size is 0.35-0.45 mm, and the fineness modulus is 2.3. The cement is portland cement with a strength grade of 42.5. The concrete mixture of the comparative example was cured for 28 days under standard conditions and then coated with a luminescent material.
Comparative example 2
The volume percentage of the steel fiber reinforced concrete related to the comparative example is as follows: 100 percent of concrete. The concrete comprises the following components in parts by mass: 490 portions of cement, 625 portions of sand, 575 portions of broken stone, 575 portions of waste ceramsite brick and 210 portions of water. Adding cement, sand, broken stone and waste ceramsite bricks into a stirrer according to the mass parts, stirring for 100s, adding water according to the mass parts into the stirrer, stirring for 80s to obtain a recycled concrete mixture, and curing for 28 days under standard conditions to obtain waste ceramsite brick recycled concrete; the comparative example does not contain ultra-high molecular weight polyethylene fibers and steel fibers.
Wherein, the rubble is divided into two kinds: the particle size is 5-10 mm, the particle size is 10-20 mm, and the mass ratio is 3: 7. The waste ceramsite bricks are divided into two types: the particle size is 5-10 mm, the particle size is 10-20 mm, and the mass ratio is 3: 7. The sand is medium sand, the water content is 3%, the particle size is 0.35-0.45 mm, and the fineness modulus is 2.3. The cement is portland cement with a strength grade of 42.5. The concrete mixture of the comparative example was cured for 28 days under standard conditions and then coated with a luminescent material.
Comparative example 3
The volume percentage of the steel fiber reinforced concrete related to the comparative example is as follows: 100 percent of concrete. The concrete comprises the following components in parts by mass: 489 parts of cement, 620 parts of sand, 285 parts of broken stone, 860 parts of waste ceramsite brick and 200 parts of water. Adding cement, sand, broken stone and waste ceramsite bricks into a stirrer according to the mass parts, stirring for 100s, adding water according to the mass parts into the stirrer, stirring for 80s to obtain a recycled concrete mixture, and curing for 28 days under standard conditions to obtain waste ceramsite brick recycled concrete; the comparative example does not contain ultra-high molecular weight polyethylene fibers and steel fibers.
Wherein, the rubble is divided into two kinds: the particle size is 5-10 mm, the particle size is 10-20 mm, and the mass ratio is 3: 7. The waste ceramsite bricks are divided into two types: the particle size is 5-10 mm, the particle size is 10-20 mm, and the mass ratio is 3: 7. The sand is medium sand, the water content is 3%, the particle size is 0.35-0.45 mm, and the fineness modulus is 2.3. The cement is portland cement with a strength grade of 42.5. The concrete mixture of the comparative example was cured for 28 days under standard conditions and then coated with a luminescent material.
The products prepared in examples 1 to 3 and comparative examples 1 to 3 were tested for compressive strength and tensile strength according to the national standards, and the following table shows the results of testing the properties of the products prepared in examples 1 to 3 and comparative examples 1 to 3:
of course, the foregoing is only a preferred embodiment of the invention and should not be taken as limiting the scope of the embodiments of the invention. The present invention is not limited to the above examples, and equivalent changes and modifications made by those skilled in the art within the spirit and scope of the present invention should be construed as being included in the scope of the present invention.
Claims (10)
1. The utility model provides a luminescent curb is joggled to regeneration fibre concrete which characterized in that: the front end of curb is equipped with the joggle boss, and the rear end cooperation joggle boss of curb is equipped with the joggle recess the curb surface is paintd from the luminous material, the curb includes each component of following volume content percentage:
98% -98.55% of recycled concrete;
0.95 to 1 percent of steel fiber;
0.5 to 1 percent of ultra-high molecular weight polyethylene fiber;
wherein: the recycled concrete comprises the following main components in parts by weight: 480-490 parts of cement, 610-630 parts of sand, 283-565 parts of broken stone and 565-863 parts of waste ceramsite brick.
2. The recycled fiber concrete joggle luminescent curb of claim 1, characterized in that: the self-luminous material is fluorescent powder.
3. The recycled fiber concrete joggle luminescent curb of claim 1, characterized in that: the cement is Portland cement with the strength grade of 42.5.
4. The recycled fiber concrete joggle luminescent curb of claim 1, characterized in that: the grain diameter of the sand is 0.35-0.45 mm, and the fineness modulus is 2.3-2.7; the particle size of the crushed stone is 5-20 mm.
5. The recycled fiber concrete joggle luminescent curb of claim 1, characterized in that: the steel fiber is steel ingot milling steel fiber.
6. The recycled fiber concrete joggle luminescent curb of claim 5, characterized in that: the steel fiber has the tensile strength of 700MPa, the length of 30-34 mm, the width of 2.6mm, the length-diameter ratio of 35-45 and the density of 7850kg/m3。
7. The recycled fiber concrete joggle luminescent curb of claim 1, characterized in that: the ultra-high molecular weight polyethylene fiber is a short ultra-high molecular weight polyethylene fiber.
8. The recycled fiber concrete joggle luminescent curb of claim 7, characterized in that: the length of the ultra-high molecular weight polyethylene fiber is 5-7 mm, the diameter is 20-50 μm, the length-diameter ratio is 600-1500, the elongation is 2.5-3.0%, and the density is 0.97-0.98 g/cm3Tensile strength 3000MPa, elastic modulus 100 GPa.
9. The recycled fiber concrete joggle luminescent curb of claim 1, characterized in that: the particle size of the waste ceramsite brick is 5-20 mm.
10. A method for preparing the regenerated fiber concrete joggle luminescent kerb stone as claimed in any one of claims 1 to 9, which is characterized in that: the method comprises the following steps:
(1) crushing the waste ceramsite bricks, mixing the crushed waste ceramsite bricks with cement, sand and crushed stone, and then adding water and stirring to obtain a recycled concrete mixture;
(2) adding steel fibers and ultra-high molecular weight polyethylene fibers into the recycled concrete mixture, stirring and mixing, and then placing into a mold for molding;
(3) and demolding the molded green body, curing, and smearing a self-luminous material on the surface of the curb after curing is finished to obtain the regenerated fiber concrete joggle joint luminous curb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110851677.6A CN113716913A (en) | 2021-07-27 | 2021-07-27 | Regenerated fiber concrete joggle joint luminous kerb and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110851677.6A CN113716913A (en) | 2021-07-27 | 2021-07-27 | Regenerated fiber concrete joggle joint luminous kerb and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114315260A (en) * | 2022-01-05 | 2022-04-12 | 东北林业大学 | Natural stone texture imitated recycled concrete curb and preparation method thereof |
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| CN103819155A (en) * | 2014-01-22 | 2014-05-28 | 中国人民解放军国防科学技术大学 | Ultra-high molecular weight polyethylene fiber concrete and preparation method thereof |
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