CN111662040A - Material for preparing semi-flexible fluorescent pavement and application method - Google Patents
Material for preparing semi-flexible fluorescent pavement and application method Download PDFInfo
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- CN111662040A CN111662040A CN202010605910.8A CN202010605910A CN111662040A CN 111662040 A CN111662040 A CN 111662040A CN 202010605910 A CN202010605910 A CN 202010605910A CN 111662040 A CN111662040 A CN 111662040A
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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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
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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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- 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
- C04B2111/50—Flexible or elastic 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
- C04B2111/807—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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- Chemical & Material Sciences (AREA)
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- Ceramic Engineering (AREA)
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Abstract
The invention relates to a material for preparing a semi-flexible fluorescent pavement and an application method thereof, wherein the material comprises an asphalt mixture used as a matrix material and a fluorescent concrete mucilage used as a matrix material, wherein the asphalt mixture accounts for 70-80% by weight, and the fluorescent concrete mucilage accounts for 20-30% by weight; the asphalt mixture comprises the following components in parts by weight: 1-2 parts of SBS modified asphalt, 4-5 parts of coarse aggregate, 0.4-0.9 part of fine aggregate, 0.3-0.5 part of limestone mineral powder and 0.01-0.02 part of high viscosity modifying additive; the coarse aggregate is basalt with the particle size of 13.2-16 mm, and the fine aggregate is natural sand with the particle size of 4.5-9 mm; the fluorescent concrete mortar comprises the following components in parts by weight: 0.6-1.6 parts of white portland cement, 0.2-0.4 part of extra-fine sand, 0.1-0.2 part of water reducing agent, 0.05-0.1 part of fly ash, 0.2-0.3 part of yellow-green fluorescent stone particles, 0.2-0.4 part of glass beads, 0.4-0.8 part of water, 0-0.4 part of SD emulsion and 0.01-0.04 part of polyvinyl alcohol. The invention has photoluminescence function, high luminous intensity, long luminous time, good road surface skid resistance, strong durability and high road surface integral intensity.
Description
Technical Field
The invention belongs to the technical field of compositions of cement and asphalt materials, and particularly relates to a material for preparing a semi-flexible fluorescent pavement and an application method thereof.
Background
With the rapid development of economy and increasingly rich material life in China, the urban landscape environment is greatly developed, and under the background, urban constructors propose an important idea of showing urban landscapes by using symbolic landscapes. The method comprises the following steps of (1) urban landscape road sign improvement research, northeast forestry university Master academic paper, 2014, abstract, publication date 2014 4 and 1, landscape road pavement theory and practice exploration research, northwest agriculture and forestry science university Master academic paper, 2012, abstract, publication date 2012 5 and 1).
A functional pavement which can meet the requirement of night illumination of a road and save energy becomes a research hotspot of the current road engineering, and a fluorescent pavement material is a novel luminescent material. The fluorescent pavement is mainly applied to colorized urban pedestrian crossing system decoration, warning and lighting of special pavements such as wetland parks, mountain roads and the like can greatly weaken the contrast of light rays, extend the night visual range of pedestrians or drivers, ensure the safety of traveling, meet the landscape effect, save a large amount of electric energy and reduce the operation cost (' the current situation and development of a light-emitting pavement in shallow conversation, Xuezhijia, Jiangxi building materials, No. 2 in 2017, pages 168 and 169, published day 2017, 30 months 1 and 7 days; ' Long afterglow pavement self-luminous paint research and application ', Xujianhui, road traffic science and technology, No. 6 in 2017, page 15, published day 2017, 12 and 25 days; ' the application of a light-emitting self-luminous pavement in a sponge urban ecological park ', Queen, urban road bridge and flood control, No. 3 in 2018, page 220, and published day 2017, 3 and 15 days 3 in 2017)
At present, partial research is available on fluorescent pavement technologies, but the application of the technologies has certain limitations:
(1) limited strength of material
Because some fluorescent stones or fluorescent powder are added into the existing fluorescent pavement research and development materials, some traditional road materials are correspondingly replaced, and in order to ensure the characteristic that the fluorescent materials need to absorb light autonomously, translucent or transparent materials are selected as substrates, so that the strength of the materials is greatly reduced, the requirements of the strength and the bearing capacity of a vehicle road cannot be met, the materials can only be applied to landscape roads or pedestrian pavements, and the application range of the fluorescent pavement is limited due to insufficient strength of the materials.
(2) Insufficient skid resistance of luminous pavement
Because the fluorescent pavement is generally prepared from the composite luminescent material, the traditional pavement material cannot meet the luminescent requirement, and other pavement performances are usually lost to obtain the self-luminescent effect. At present, cement and polymer compounded luminescent materials are mainly used as research main bodies of luminescent pavements, and the formed pavement surface has insufficient skid resistance, so that the driving safety is seriously influenced.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a material for preparing a semi-flexible fluorescent pavement and an application method thereof, and the material has the advantages of photoluminescence function, high luminous intensity, long luminous time, good pavement skid resistance, strong durability and high overall pavement strength.
In order to solve the technical problems, the invention solves the problems by the following technical scheme:
the material for preparing the semi-flexible fluorescent pavement comprises an asphalt mixture serving as a matrix material and fluorescent concrete mortar serving as a base material, wherein the asphalt mixture accounts for 70-80 wt%, and the fluorescent concrete mortar accounts for 20-30 wt%;
the asphalt mixture comprises the following components in parts by weight: 1-2 parts of SBS modified asphalt, 4-5 parts of coarse aggregate, 0.4-0.9 part of fine aggregate, 0.3-0.5 part of limestone mineral powder and 0.01-0.02 part of high viscosity modifying additive; the coarse aggregate is basalt with the particle size of 13.2-16 mm, and the fine aggregate is natural sand with the particle size of 4.5-9 mm;
the fluorescent concrete mortar comprises the following components in parts by weight: 0.6-1.6 parts of white portland cement, 0.2-0.4 part of extra-fine sand, 0.1-0.2 part of water reducing agent, 0.05-0.1 part of fly ash, 0.2-0.3 part of yellow-green fluorescent stone particles, 0.2-0.4 part of glass beads, 0.4-0.8 part of water, 0-0.4 part of SD emulsion and 0.01-0.04 part of polyvinyl alcohol.
Further, the maximum particle diameter of the superfine sand is 0.6mm, and the maximum particle diameter of the glass beads is 0.074 mm.
Further, the water reducing agent is a naphthalene water reducing agent.
Further, the whiteness of the white Portland cement is more than or equal to 89.
Further, the yellow-green fluorite particles comprise the following components in parts by weight: 0.02-3 parts of phthalocyanine green, 0.01-3.5 parts of 168 yellow, 12.5-200 parts of 168 antioxidant, 1.35-120 parts of UV531 ultraviolet resistant agent, 0.232-15.4 parts of green self-luminous fluorescent material and 7854-8216 parts of PS/PP/PC/PMMA resin.
An application method of a material for preparing a semi-flexible fluorescent pavement comprises the steps of preparing an asphalt mixture serving as a matrix material and fluorescent concrete mortar serving as a base material, paving the asphalt mixture, and pouring the fluorescent concrete mortar into the paved asphalt mixture to obtain the semi-flexible fluorescent pavement.
Further, the preparation method of the fluorescent concrete mortar comprises the following steps:
step 1: stirring and mixing the yellow-green fluorite particles and the glass beads, adding the superfine sand, and uniformly stirring to obtain a component A;
step 2: and mixing and stirring the white portland cement, the water reducing agent, the fly ash and the water, adding the component A, the SD emulsion and the polyvinyl alcohol, and uniformly stirring to obtain the fluorescent concrete mortar serving as the semi-flexible fluorescent pavement base material.
Further, the preparation method of the asphalt mixture comprises the following steps:
step 11: heating the SBS modified asphalt, adding the high-viscosity modified additive into the SBS modified asphalt, and uniformly stirring to obtain a component B;
step 22: and (3) mixing the coarse aggregate, the fine aggregate and the limestone mineral powder, heating and uniformly stirring the mixture, then adding the component B into the mixture, and uniformly stirring to obtain the asphalt mixture serving as the semi-flexible fluorescent pavement matrix material.
Compared with the prior art, the invention has at least the following beneficial effects: the addition of the yellow-green fluoresent stone promotes the hydration process of the white Portland cement, the addition of the glass beads improves the distribution state of the hydration products of the white Portland cement, and the glass beads play a role of aggregate in mineral material particles due to the characteristics of high strength and small fineness of the glass beads, fill micro pores generated by the hydration products, and improve the compactness of a matrix, thereby increasing the strength of the matrix material. The semi-flexible fluorescent pavement base material has high strength, the 28-day compressive strength can reach 61MPa, and the rupture strength can reach 7.7 MPa. The matrix asphalt mixture adopts high-viscosity modified SBS asphalt, so that the cohesiveness of the aggregate is better, and the whole structure has better anti-rutting deformation performance.
The self-luminous matrix material is poured into the matrix material of the asphalt mixture, and the special aggregate gradation and the large-gap structure formed by the asphalt mixture mixed with the high-viscosity modified SBS asphalt can meet the volume requirement of the matrix grouting material, thereby achieving the luminous effect; the rough texture on the surface of the matrix asphalt mixture plays an important role in improving the anti-skid effect of the pavement and increasing the driving safety performance.
The fluorescent material is only added by mechanical stirring, so that the self-luminous characteristic of the fluorescent powder is not lost, and the existence of the reflective glass beads increases the reflection range of the fluorescence, so that the reflection intensity is improved on the basis of the original fluorescence brightness, and the afterglow time of the material is prolonged. Luminescence of the fluorescent pavement material of the inventionHigh intensity, long luminescence time, the luminescence time can reach 10-11h, the luminescence intensity can reach 6000-2。
The application method of the material for preparing the semi-flexible fluorescent pavement is simple and rapid, and is convenient to operate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention relates to a material for preparing a semi-flexible fluorescent pavement, which comprises an asphalt mixture serving as a matrix material and fluorescent concrete mortar serving as a base material, wherein the asphalt mixture comprises the following components in parts by weight: 1-2 parts of SBS modified asphalt, 4-5 parts of coarse aggregate, 0.4-0.9 part of fine aggregate, 0.3-0.5 part of limestone mineral powder and 0.01-0.02 part of high viscosity modifying additive; the coarse aggregate is basalt with the grain size of 13.2-16 mm, and the fine aggregate is natural sand with the grain size of 4.5-9 mm.
The fluorescent concrete mortar comprises the following components in parts by weight: 0.6-1.6 parts of white portland cement, 0.2-0.4 part of extra-fine sand, 0.1-0.2 part of water reducing agent, 0.05-0.1 part of fly ash, 0.2-0.3 part of yellow-green fluorescent stone particles, 0.2-0.4 part of glass beads, 0.4-0.8 part of water, 0-0.4 part of SD emulsion and 0.01-0.04 part of polyvinyl alcohol; preferably, the maximum diameter of the particle of the superfine sand is 0.6mm, and the maximum diameter of the particle of the glass bead is 0.074 mm; the water reducing agent is a naphthalene water reducing agent; the whiteness of the white Portland cement is more than or equal to 89; the yellow-green fluorite particles comprise the following components in parts by weight: 0.02-3 parts of phthalocyanine green, 0.01-3.5 parts of 168 yellow, 12.5-200 parts of 168 antioxidant, 1.35-120 parts of UV531 ultraviolet resistant agent, 0.232-15.4 parts of green self-luminous fluorescent material and 7854-8216 parts of PS/PP/PC/PMMA resin.
According to the proportion of the components, the weight percentage of the asphalt mixture is 70-80%, and the weight percentage of the fluorescent concrete cement is 20-30%.
Example 1
A material for preparing a semi-flexible fluorescent pavement comprises the following components in parts by weight: 0.68 part of white portland cement, 0.24 part of extra-fine sand, 0.11 part of water reducing agent, 0.05 part of fly ash, 0.22 part of yellow-green fluorite particles, 0.24 part of glass beads, 0.5 part of water, 0.02 part of SD emulsion and 0.01 part of polyvinyl alcohol; 1.2 parts of SBS modified asphalt, 4.1 parts of coarse aggregate, 0.42 part of fine aggregate, 0.33 part of limestone mineral powder and 0.012 part of high viscosity modified additive;
the weight percentage of the asphalt mixture is 70 percent, and the weight percentage of the fluorescent concrete adhesive cement is 30 percent.
An application method of a material for preparing a semi-flexible fluorescent pavement comprises the following specific steps:
the method comprises the following steps: stirring the yellow-green fluorescent stone particles and the reflective glass beads in a stirrer for 43 seconds at the rotation speed of 145 +/-5 revolutions per minute and the revolution speed of 55 +/-5 revolutions per minute, adding superfine sand, and continuously stirring for 20 seconds until the mixture is uniform to obtain a component A;
step two: stirring white portland cement, a water reducing agent, fly ash and water in a stirrer for 100s at the rotating speeds of 160 +/-5 revolutions per minute in autorotation and 60 +/-5 revolutions per minute in revolution, stopping rotating for 15s, adding the component A, the SD emulsion and polyvinyl alcohol, and continuing rotating for 110s at the rotating speeds of 260 +/-10 revolutions per minute in autorotation and 110 +/-10 revolutions per minute in revolution to obtain fluorescent concrete mortar serving as a semi-flexible fluorescent pavement base material;
step three: heating SBS modified asphalt to 160-;
step four: mixing the coarse aggregate, the fine aggregate and the limestone mineral powder, and then heating the mixed aggregate, wherein the heating temperature is controlled to be 180-190 ℃, and the mixing time of the mixture is controlled to be 70 seconds; adding the component B into the mixture, mixing for 90 seconds to obtain an asphalt mixture serving as a semi-flexible fluorescent pavement matrix material, filling the asphalt mixture into a Marshall standard test mold, and hammering the test piece for 50 times by adopting a Marshall compaction tester with the hammer weight of 4536 +/-9 g to complete the preparation of the semi-flexible fluorescent pavement asphalt mixture matrix;
step five: and pouring the fluorescent concrete mortar into the asphalt mixture matrix of the semi-flexible fluorescent pavement, vibrating by using a vibrating table until slurry materials seep out of the lower part of the matrix, and stopping pouring to finish the preparation of the semi-flexible fluorescent pavement.
Example 2
A material for preparing a semi-flexible fluorescent pavement comprises the following components in parts by weight: 1.24 parts of white portland cement, 0.32 part of extra-fine sand, 0.16 part of a water reducing agent, 0.08 part of fly ash, 0.25 part of yellow-green fluorite particles, 0.22 part of glass beads, 0.54 part of water, 0.02 part of SD emulsion and 0.02 part of polyvinyl alcohol; 1.5 parts of SBS modified asphalt, 4.4 parts of coarse aggregate, 0.56 part of fine aggregate, 0.32 part of limestone mineral powder and 0.016 part of high-viscosity modified additive;
the weight percentage of the asphalt mixture is 73 percent, and the weight percentage of the fluorescent concrete mortar is 27 percent.
An application method of a material for preparing a semi-flexible fluorescent pavement comprises the following specific steps:
the method comprises the following steps: stirring the yellow-green fluorescent stone particles and the reflective glass beads in a stirrer for 36s at the rotation speed of 155 +/-5 revolutions per minute and 60 +/-5 revolutions per minute, adding superfine sand, and continuously stirring for 25s until the mixture is uniform to obtain a component A;
step two: stirring white portland cement, a water reducing agent, fly ash and water in a stirrer for 90s at the rotating speeds of rotation 165 +/-5 revolutions per minute and revolution 70 +/-5 revolutions per minute, stopping rotating for 20s, adding the component A, the SD emulsion and polyvinyl alcohol, and continuously rotating for 100s at the rotating speeds of rotation 250 +/-10 revolutions per minute and revolution 100 +/-10 revolutions per minute to obtain fluorescent concrete mortar serving as a semi-flexible fluorescent pavement base material;
step three: heating SBS modified asphalt to 160-;
step four: mixing the coarse aggregate, the fine aggregate and the limestone mineral powder, and then heating the mixed aggregate, wherein the heating temperature is controlled to be 180-190 ℃, and the mixing time of the mixture is controlled to be 70 seconds; adding the component B into the mixture, mixing for 90 seconds to obtain an asphalt mixture serving as a semi-flexible fluorescent pavement matrix material, filling the asphalt mixture into a Marshall standard test mold, and hammering the test piece for 50 times by adopting a Marshall compaction tester with the hammer weight of 4536 +/-9 g to complete the preparation of the semi-flexible fluorescent pavement asphalt mixture matrix;
step five: and pouring the fluorescent concrete mortar into the asphalt mixture matrix of the semi-flexible fluorescent pavement, vibrating by using a vibrating table until slurry materials seep out of the lower part of the matrix, and stopping pouring to finish the preparation of the semi-flexible fluorescent pavement.
Example 3
A material for preparing a semi-flexible fluorescent pavement comprises the following components in parts by weight: 0.96 part of white portland cement, 0.33 part of extra-fine sand, 0.15 part of water reducing agent, 0.07 part of fly ash, 0.26 part of yellow-green fluorite particles, 0.25 part of glass beads, 0.6 part of water, 0.03 part of SD emulsion and 0.03 part of polyvinyl alcohol; 1.8 parts of SBS modified asphalt, 4.8 parts of coarse aggregate, 0.76 part of fine aggregate, 0.42 part of limestone mineral powder and 0.017 part of high viscosity modified additive;
the weight percentage of the asphalt mixture is 80 percent, and the weight percentage of the fluorescent concrete adhesive cement is 20 percent.
An application method of a material for preparing a semi-flexible fluorescent pavement comprises the following specific steps:
the method comprises the following steps: stirring the yellow-green fluorescent stone particles and the reflective glass beads in a stirrer for 45s at the rotation speed of 140 +/-5 revolutions per minute and the revolution speed of 55 +/-5 revolutions per minute, adding superfine sand, and continuously stirring for 24s until the mixture is uniform to obtain a component A;
step two: stirring white portland cement, a water reducing agent, fly ash and water in a stirrer for 110s at the rotating speeds of rotation 165 +/-5 revolutions per minute and revolution 60 +/-5 revolutions per minute, stopping rotating for 20s, adding the component A, the SD emulsion and polyvinyl alcohol, and continuously rotating for 110s at the rotating speeds of rotation 250 +/-10 revolutions per minute and revolution 110 +/-10 revolutions per minute to obtain fluorescent concrete mortar serving as a semi-flexible fluorescent pavement base material;
step three: heating SBS modified asphalt to 160-;
step four: mixing the coarse aggregate, the fine aggregate and the limestone mineral powder, and then heating the mixed aggregate, wherein the heating temperature is controlled to be 180-190 ℃, and the mixing time of the mixture is controlled to be 70 seconds; adding the component B into the mixture, mixing for 90 seconds to obtain an asphalt mixture serving as a semi-flexible fluorescent pavement matrix material, filling the asphalt mixture into a Marshall standard test mold, and hammering the test piece for 50 times by adopting a Marshall compaction tester with the hammer weight of 4536 +/-9 g to complete the preparation of the semi-flexible fluorescent pavement asphalt mixture matrix;
step five: and pouring the fluorescent concrete mortar into the asphalt mixture matrix of the semi-flexible fluorescent pavement, vibrating by using a vibrating table until slurry materials seep out of the lower part of the matrix, and stopping pouring to finish the preparation of the semi-flexible fluorescent pavement.
Example 4
A material for preparing a semi-flexible fluorescent pavement comprises the following components in parts by weight: 1.56 parts of white portland cement, 0.38 part of extra-fine sand, 0.15 part of a water reducing agent, 0.06 part of fly ash, 0.29 part of yellow-green fluorite particles, 0.36 part of glass beads, 0.7 part of water, 0.02 part of SD emulsion and 0.03 part of polyvinyl alcohol; 1.9 parts of SBS modified asphalt, 4.6 parts of coarse aggregate, 0.8 part of fine aggregate, 0.4 part of limestone mineral powder and 0.019 part of high-viscosity modified additive;
the weight percentage of the asphalt mixture is 75 percent, and the weight percentage of the fluorescent concrete adhesive cement is 25 percent.
An application method of a material for preparing a semi-flexible fluorescent pavement comprises the following specific steps:
the method comprises the following steps: stirring the yellow-green fluorescent stone particles and the reflective glass beads in a stirrer for 40s at the rotation speed of 143 +/-5 revolutions per minute and 65 +/-5 revolutions per minute, adding superfine sand, and continuously stirring for 20s to be uniform to obtain a component A;
step two: stirring white portland cement, a water reducing agent, fly ash and water in a stirrer for 100s at the rotating speeds of rotation 165 +/-5 revolutions per minute and revolution 50 +/-5 revolutions per minute, stopping rotating for 15s, adding the component A, the SD emulsion and polyvinyl alcohol, and continuing rotating for 110s at the rotating speeds of rotation 260 +/-10 revolutions per minute and revolution 110 +/-10 revolutions per minute to obtain fluorescent concrete mortar serving as a semi-flexible fluorescent pavement base material;
step three: heating SBS modified asphalt to 160-;
step four: mixing the coarse aggregate, the fine aggregate and the limestone mineral powder, and then heating the mixed aggregate, wherein the heating temperature is controlled to be 180-190 ℃, and the mixing time of the mixture is controlled to be 70 seconds; adding the component B into the mixture, mixing for 90 seconds to obtain an asphalt mixture serving as a semi-flexible fluorescent pavement matrix material, filling the asphalt mixture into a Marshall standard test mold, and hammering the test piece for 50 times by adopting a Marshall compaction tester with the hammer weight of 4536 +/-9 g to complete the preparation of the semi-flexible fluorescent pavement asphalt mixture matrix;
step five: and pouring the fluorescent concrete mortar into the asphalt mixture matrix of the semi-flexible fluorescent pavement, vibrating by using a vibrating table until slurry materials seep out of the lower part of the matrix, and stopping pouring to finish the preparation of the semi-flexible fluorescent pavement.
Example 5
A material for preparing a semi-flexible fluorescent pavement comprises the following components in parts by weight: 1.3 parts of white portland cement, 0.28 part of extra-fine sand, 0.17 part of a water reducing agent, 0.08 part of fly ash, 0.24 part of yellow-green fluorite particles, 0.3 part of glass beads, 0.8 part of water, 0.03 part of SD emulsion and 0.02 part of polyvinyl alcohol; 1.4 parts of SBS modified asphalt, 4.7 parts of coarse aggregate, 0.66 part of fine aggregate, 0.46 part of limestone mineral powder and 0.015 part of high-viscosity modified additive;
the weight percentage of the asphalt mixture is 77 percent, and the weight percentage of the fluorescent concrete adhesive cement is 23 percent.
An application method of a material for preparing a semi-flexible fluorescent pavement comprises the following specific steps:
the method comprises the following steps: stirring the yellow-green fluorescent stone particles and the reflective glass beads in a stirrer for 43 seconds at the rotation speed of 145 +/-5 revolutions per minute and the revolution speed of 55 +/-5 revolutions per minute, adding superfine sand, and continuously stirring for 20 seconds until the mixture is uniform to obtain a component A;
step two: stirring white portland cement, a water reducing agent, fly ash and water in a stirrer for 100s at the rotating speeds of 160 +/-5 revolutions per minute in autorotation and 60 +/-5 revolutions per minute in revolution, stopping rotating for 15s, adding the component A, the SD emulsion and polyvinyl alcohol, and continuing rotating for 110s at the rotating speeds of 260 +/-10 revolutions per minute in autorotation and 110 +/-10 revolutions per minute in revolution to obtain fluorescent concrete mortar serving as a semi-flexible fluorescent pavement base material;
step three: heating SBS modified asphalt to 160-165 ℃, stirring at 2300-3000 rpm for 15-20 min, adding the high-viscosity modification additive into the SBS modified asphalt, and stirring at 3300-3500rpm for 30-35 min to obtain a component B;
step four: mixing the coarse aggregate, the fine aggregate and the limestone mineral powder, and then heating the mixed aggregate, wherein the heating temperature is controlled to be 180-190 ℃, and the mixing time of the mixture is controlled to be 70 seconds; adding the component B into the mixture, mixing for 90 seconds to obtain an asphalt mixture serving as a semi-flexible fluorescent pavement matrix material, filling the asphalt mixture into a Marshall standard test mold, and hammering the test piece for 50 times by adopting a Marshall compaction tester with the hammer weight of 4536 +/-9 g to complete the preparation of the semi-flexible fluorescent pavement asphalt mixture matrix;
step five: and pouring the fluorescent concrete mortar into the asphalt mixture matrix of the semi-flexible fluorescent pavement, vibrating by using a vibrating table until slurry materials seep out of the lower part of the matrix, and stopping pouring to finish the preparation of the semi-flexible fluorescent pavement.
Performance testing
The matrix compressive strength, the flexural strength, the light emitting time, the light emitting strength and the anti-skid performance of the semi-flexible fluorescent pavement prepared in the examples 1 to 5 were tested, and the results are shown in table 1;
wherein, the testing method of the appearance is visual inspection;
the compressive strength and the flexural strength are tested according to cement mortar strength test method (ISO method);
the luminous intensity is tested according to the green illumination detection and evaluation standard GB/He 51268 plus 2017;
table 1 results of performance testing
As can be seen from Table 1, the luminescent time of the fluorescent pavement materials of examples 1-5 can reach 5.6-6.5h, and the luminescent intensity is far higher than the standard requirement. Therefore, the fluorescent pavement material has high luminous intensity and long luminous time, thereby proving that the fluorescent pavement material has good luminous capacity at night.
As can be seen from Table 1, the compressive strength and the flexural strength of the fluorescent pavement materials of examples 1-5 are greater than the labeled values, so that the strength of the fluorescent pavement material of the present invention satisfies the strength requirements of the pavement material.
As can be seen from Table 1, the surface skid resistance of the fluorescent pavement materials of examples 1-5 is higher than the standard requirement, and the fluorescent pavement materials have super-hydrophobic capability.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The material for preparing the semi-flexible fluorescent pavement is characterized by comprising an asphalt mixture serving as a matrix material and fluorescent concrete mortar serving as a base material, wherein the asphalt mixture accounts for 70-80 wt%, and the fluorescent concrete mortar accounts for 20-30 wt%;
the asphalt mixture comprises the following components in parts by weight: 1-2 parts of SBS modified asphalt, 4-5 parts of coarse aggregate, 0.4-0.9 part of fine aggregate, 0.3-0.5 part of limestone mineral powder and 0.01-0.02 part of high viscosity modifying additive; the coarse aggregate is basalt with the particle size of 13.2-16 mm, and the fine aggregate is natural sand with the particle size of 4.5-9 mm;
the fluorescent concrete mortar comprises the following components in parts by weight: 0.6-1.6 parts of white portland cement, 0.2-0.4 part of extra-fine sand, 0.1-0.2 part of water reducing agent, 0.05-0.1 part of fly ash, 0.2-0.3 part of yellow-green fluorescent stone particles, 0.2-0.4 part of glass beads, 0.4-0.8 part of water, 0-0.4 part of SD emulsion and 0.01-0.04 part of polyvinyl alcohol.
2. The material for preparing a semi-flexible fluorescent pavement according to claim 1, wherein the maximum particle diameter of the superfine sand is 0.6mm, and the maximum particle diameter of the glass beads is 0.074 mm.
3. The material for preparing the semi-flexible fluorescent pavement according to claim 1, wherein the water reducing agent is a naphthalene water reducing agent.
4. The material for preparing the semi-flexible fluorescent pavement according to claim 1, wherein the whiteness of the white portland cement is more than or equal to 89.
5. The material for preparing a semi-flexible fluorescent pavement according to claim 1, wherein the yellow-green fluorescent stone particles comprise, in parts by weight: 0.02-3 parts of phthalocyanine green, 0.01-3.5 parts of 168 yellow, 12.5-200 parts of 168 antioxidant, 1.35-120 parts of UV531 ultraviolet resistant agent, 0.232-15.4 parts of green self-luminous fluorescent material and 7854-8216 parts of PS/PP/PC/PMMA resin.
6. The application method of the material for preparing the semi-flexible fluorescent pavement according to any one of claims 1 to 5, characterized by preparing an asphalt mixture as a matrix material and a fluorescent concrete cement as a matrix material, paving the asphalt mixture, and pouring the fluorescent concrete cement into the paved asphalt mixture to obtain the semi-flexible fluorescent pavement.
7. The application method of the material for preparing the semi-flexible fluorescent pavement according to claim 6, wherein the preparation method of the fluorescent concrete mortar comprises the following steps:
step 1: stirring and mixing the yellow-green fluorite particles and the glass beads, adding the superfine sand, and uniformly stirring to obtain a component A;
step 2: and mixing and stirring the white portland cement, the water reducing agent, the fly ash and the water, adding the component A, the SD emulsion and the polyvinyl alcohol, and uniformly stirring to obtain the fluorescent concrete mortar serving as the semi-flexible fluorescent pavement base material.
8. The application method of the material for preparing the semi-flexible fluorescent pavement according to claim 6, wherein the preparation method of the asphalt mixture comprises the following steps:
step 11: heating the SBS modified asphalt, adding the high-viscosity modified additive into the SBS modified asphalt, and uniformly stirring to obtain a component B;
step 22: and (3) mixing the coarse aggregate, the fine aggregate and the limestone mineral powder, heating and uniformly stirring the mixture, then adding the component B into the mixture, and uniformly stirring to obtain the asphalt mixture serving as the semi-flexible fluorescent pavement matrix material.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116217260A (en) * | 2022-12-06 | 2023-06-06 | 四川省交通建设集团有限责任公司 | Self-luminous ceramsite, preparation method and self-luminous ultrathin wearing layer containing self-luminous ceramsite |
| CN116514464A (en) * | 2023-04-27 | 2023-08-01 | 重庆交通大学 | Reflective cement mucilage and reflective semi-flexible pavement material |
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| CN107915427A (en) * | 2017-11-17 | 2018-04-17 | 苏州三创路面工程有限公司 | A kind of half-flexible pavement material and pavement construction engineering method |
| CN110386791A (en) * | 2019-08-23 | 2019-10-29 | 长安大学 | A kind of hydrophobic self-luminous fluorescent pavement material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107915427A (en) * | 2017-11-17 | 2018-04-17 | 苏州三创路面工程有限公司 | A kind of half-flexible pavement material and pavement construction engineering method |
| CN110386791A (en) * | 2019-08-23 | 2019-10-29 | 长安大学 | A kind of hydrophobic self-luminous fluorescent pavement material and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116217260A (en) * | 2022-12-06 | 2023-06-06 | 四川省交通建设集团有限责任公司 | Self-luminous ceramsite, preparation method and self-luminous ultrathin wearing layer containing self-luminous ceramsite |
| CN116217260B (en) * | 2022-12-06 | 2024-04-19 | 四川省交通建设集团有限责任公司 | Self-luminous ceramsite, preparation method and self-luminous ultrathin wearing layer containing self-luminous ceramsite |
| CN116514464A (en) * | 2023-04-27 | 2023-08-01 | 重庆交通大学 | Reflective cement mucilage and reflective semi-flexible pavement material |
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