WO2021120481A1

WO2021120481A1 - High-water-permeability long-acting noctilucent pavement structure

Info

Publication number: WO2021120481A1
Application number: PCT/CN2020/087079
Authority: WO
Inventors: 袁月; 夏庆宇; 周维维; 闫国杰; 周富强; 邱轶; 徐韵淳; 陆文亮; 王腾飞; 李交
Original assignee: 上海浦东路桥(集团)有限公司
Priority date: 2019-12-19
Filing date: 2020-04-26
Publication date: 2021-06-24
Also published as: CN111021188A; CN111021188B

Abstract

A high-water-permeability long-acting noctilucent pavement structure, comprising a noctilucent wearing surface layer (1), an adhesive layer (2) and a high-water-permeability energy-storage structure bottom layer (3) which are laminated sequentially from top to bottom; the noctilucent wearing surface layer (1) comprises granular solids, light-transmitting powder, a noctilucent material and a binding material, the granular solids, the light-transmitting powder, the noctilucent material and the binding material being mixed to form a mixture I; the mixture I is paved to form the noctilucent wearing surface layer (1) having the porosity of 8%-15%; and the high-water-permeability energy-storage structure bottom layer (3) comprises fluorescent particles and a thermoplastic binding material, the fluorescent particles and the thermoplastic binding material being mixed to form a mixture II; the mixture II is paved to form the high-water-permeability energy-storage structure bottom layer (3) having the porosity of 20%-35%. The noctilucent pavement has a high water permeability, a strong anti-scattering ability, and a long-time noctilucent effect, and is not prone to cracking.

Description

High-permeability long-lasting luminous pavement structure

Technical field

The invention relates to the technical field of road functional paving, in particular to a high-permeability long-lasting luminous pavement structure.

Background technique

Asphalt pavement construction has a history of hundreds of years. In my country, asphalt pavement was first used in Shanghai in the 1920s, and it has a history of nearly a hundred years. Nowadays, the research on black asphalt pavement has been relatively mature and complete. There are more in-depth researches on asphalt pavement construction, evaluation, maintenance and regeneration. Asphalt pavement has also become the main form of road pavement in my country.

In recent years, with the development of my country’s economic construction, a large number of functional pavement constructions have appeared. Luminous pavement as one of the important technologies has been rapidly researched and developed. In research and practice, it has been found that luminous pavement It can indicate traffic, guide the flow of people, and has significant advantages in aesthetics. It has a wide range of application prospects in the field of road functional paving.

However, the current luminous pavement mainly has the scheme of spreading or paving the fluorescent stone surface layer or painting the fluorescent surface layer. The solution of spreading or paving fluorescent stone is insufficient in the anti-scattering ability of the road surface, and is poor in the water permeability and luminous performance of the road surface; using the coating solution, the coating will affect the structure of the original road surface and cause the water permeability of the road surface The performance is greatly reduced, and cracks are prone to occur at the same time, so it is not suitable for pavements with large void structures.

Summary of the invention

In order to solve the problem of the existing luminous pavement, the present invention provides a high-permeability long-lasting luminous pavement structure, which improves the water permeability, anti-scattering ability, good luminous effect and long time, not easy to crack, and applicable scope of the luminous pavement structure. wide.

The technical solutions provided by the present invention are as follows:

A high-permeability long-lasting luminous pavement structure, comprising: a luminous wear surface layer, a sticky layer and a bottom layer of a high-permeable energy storage structure stacked sequentially from top to bottom; the luminous wear surface layer includes granular solids, light-transmitting powder, and luminous materials And a binder, the granular solids, the translucent powder, the luminous material and the binder are mixed to form a mixture one, and the mixture is spread to form a luminous wear surface layer with a porosity of 8-15%; The bottom layer of the high water-permeable energy storage structure includes fluorescent particles and a thermoplastic binder. The fluorescent particles and the thermoplastic binder are mixed to form a second mixture, and the second mixture is spread to form a highly water-permeable porosity of 20-35%. Bottom layer of energy storage structure.

In the above technical solution, different from the existing luminous pavement structure with a fluorescent stone surface layer or a fluorescent surface layer coated, the luminous wear surface layer and the bottom layer of the high-permeable energy storage structure of the present invention are both porous layers, which realizes the present invention. Invented the high water permeability of the entire luminous pavement structure; the luminous effect, light transmission and anti-skid performance of the mixture 1 are good, and the luminous abrasion surface has a small gap, and the high-permeable energy storage structure has a large gap at the bottom of the structure and has a relatively small particle size. Large pollutants cannot pass through the gaps in the bottom layer of the high-permeable energy storage structure. They can be removed under conventional maintenance work. Some pollutants with smaller particle diameters will flow through the gaps in the luminous abrasion surface to the gaps in the bottom layer of the high-permeable energy storage structure. The luminous pavement structure has excellent anti-scattering ability; better, under the action of rain, the pollutants remaining in the voids of the bottom layer of the high-permeable energy storage structure will flow out smoothly with the rain; due to the luminous wear of the surface layer and the bottom layer of the high-permeable energy storage structure Under the action of rainwater flow, the lower gap will form negative pressure, which will clean up the contaminants attached to the surface layer, so as to realize that the luminous pavement structure can maintain high water permeability for a long time; better, clean road conditions are guaranteed The luminous effect of the luminous pavement structure of the present invention is long and durable; the high-permeability energy storage structure layer is a super-large void structure, and the thermoplastic binder is used, so that the high-permeability energy storage structure layer has strong deformability and can withstand greater temperatures. Shrinkage deformation and stress deformation. At the same time, the luminous wear surface layer is a water-permeable structure and has a certain deformation ability, so as to realize that the luminous pavement structure will not crack, and the weather resistance, comfort and smoothness are good; the luminous pavement structure The luminous wear-only surface layer contains luminous materials, while the high-permeability energy storage structure layer does not contain luminous materials, but fluorescent materials whose cost is much lower than that of luminous materials. Fluorescent materials can absorb the energy of the luminous abraded surface or the environment. More energy. In the process of energy dissipation of the fluorescent materials, the fluorescent materials can absorb each other's energy, which realizes the longer storage of the fluorescent material energy, so that the luminous effect of the luminous abrasion surface layer is better and the luminous time is longer. The high porosity of the high-permeable energy storage structure layer makes this luminous pavement structure suitable for pavement bases with large pores, and also suitable for pavement bases with small pores, with a wide range of applications; the setting of the adhesive layer improves the luminous wear surface and high water permeability The connection firmness of the bottom layer of the energy storage structure realizes the integrated paving of the luminous pavement structure.

Further, an adhesive layer is stacked under the bottom layer of the high-permeability energy storage structure; and/or, the binder is a transparent epoxy resin.

In the above technical solution, the luminous pavement structure can be directly laid on the pavement base layer through the adhesive layer. The arrangement of the adhesive layer improves the firmness of the connection between the luminous pavement structure and the pavement base layer, thereby realizing the integrated paving of the luminous pavement structure. Wide range of applications.

In the above technical scheme, the binder of the luminous wear surface layer is a transparent epoxy resin, which has high strength and is not easy to scatter, and adopts a whole layer of paving and rolling, which has high flatness, excellent skid resistance and good wear resistance. Except for the particulate solids that support and beautify the road surface and the luminous materials that play the role of luminous, the other components of the luminous abrasion surface are transparent materials, which have excellent light transmission and astigmatism properties.

Further, the adhesive layer is a transparent resin layer, and the transparent resin layer includes an epoxy resin, a curing agent, and a diluent, and the epoxy resin, the curing agent, and the diluent account for the mass of the transparent resin layer. The percentages are 60 to 80%, 15 to 30%, and 5 to 10%, respectively.

Further, the particle size of the particulate solid is 3 to 5 mm, and the particulate solid is a colored particulate solid.

In the above technical solution, the colored granular solids realize that the luminous pavement structure provides night light at night, decorates the pavement during the day, beautifies the appearance of the city, and improves the viewing and overall beauty.

Further, the light-transmitting powder is transparent glass powder, and the particle size of the transparent glass powder is 0.5-1 mm.

Further, the luminous material is a mixture of strontium aluminate and rare elements, the particle size of the mixture is 5 to 45 μm, the density of the mixture is 3.4 to 3.6 g/cm ³ , and the luminescence peak of the mixture is 520 ± 5 nm .

In the above technical solution, the luminous effect and performance of the luminous road structure are guaranteed.

Further, the mass percentages of the particulate solid, the translucent powder, the luminous material and the binder in the luminous wear surface layer are 40-50%, 5-10%, 25-50%, 5 ~ 15%.

Further, the thickness dimension of the luminous wear surface layer is 3-8mm; the thickness dimension of the bottom layer of the high-permeable energy storage structure is 30-50mm.

In the above technical solution, the thinning of the luminous wear surface layer reduces the consumables and costs of luminous materials. The high thickness of the bottom layer of the high-permeable energy storage structure ensures that the fluorescent particles can store and release more energy, while reducing the current luminous road surface. The cost of construction.

Further, the fluorescent particles are at least one of resin-based fluorescent stones and glass-based fluorescent stones, and the particle size of the fluorescent particles is 8-12 mm; the thermoplastic binder is a transparent binder, and the transparent binder is made of transparent It is made of base oil, SBS and hydrogenated resin.

Further, the bottom layer of the high-permeability energy storage structure further includes granular solids, the pass rate of which is 95-100% through the sieve with an aperture of 0.075 mm.

In the above technical solution, the bottom layer of the high-permeable energy storage structure and the luminous wear surface layer are supported by granular solids, which realizes the integration of the luminous pavement structure and ensures the integrity and beauty of the luminous pavement structure.

Compared with the prior art, the beneficial effect of the present high-permeability long-lasting luminous pavement structure is that it provides a luminous pavement structure that is different from the existing sprinkled or paved fluorescent stone surface layer or painted fluorescent surface layer. The layers are all multi-layer water-permeable structures with integral paving, which solves the problems of the existing luminous pavement and realizes the high water permeability, high anti-scattering ability, excellent and long-term luminous effect of the luminous pavement structure, and is not easy to crack and has a wide application range.

Description of the drawings

In the following, in a clear and easy-to-understand manner, the preferred embodiments will be described in conjunction with the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of a high-permeability long-lasting luminous pavement structure.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Attached icon number description:

1. Luminous abrasion surface layer, 2.

Adhesive layer

1, 3. Highly permeable energy storage structure bottom layer, 4. Adhesive layer 2.

Detailed ways

In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are proposed for a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from obstructing the description of this application.

It should be understood that when used in this specification and appended claims, the term "comprising" indicates the existence of the described features, wholes, steps, operations, elements and/or components, but does not exclude one or more other The existence or addition of features, wholes, steps, operations, elements, components, and/or collections.

In order to make the drawings concise, the drawings only schematically show the parts related to the present invention, and they do not represent the actual structure of the product. In addition, in order to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is schematically shown, or only one of them is marked. In this article, "a" not only means "only this one", but can also mean "more than one". It should be further understood that the term "and/or" used in the specification and appended claims of this application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations .

In an embodiment of the present invention, as shown in FIG. 1, a high-permeability long-lasting luminous pavement structure includes: a luminous wear surface layer 1, an adhesive layer-2, and a high-permeability storage layer sequentially stacked from top to bottom. Energy structure bottom layer 3; luminous abrasion surface layer 1 includes granular solids, light-transmitting powder, luminous materials and binders. The granular solids, light-transmitting powder, luminous materials and binders are mixed to form a mixture. The mixture is spread to form a porosity 8-15% of luminous abrasion surface layer 1; high-permeable energy storage structure bottom layer 3 includes fluorescent particles and thermoplastic binder, the fluorescent particles and thermoplastic binder are mixed to form mixture two, and the porosity of the mixture two is 20-35%. The bottom layer of the high-permeable energy storage structure 3.

In this embodiment, different from the prior art spreading or paving the fluorescent stone surface layer on the basic road surface and painting the fluorescent stone surface layer on the basic road surface, the present invention only needs to mix and pave sequentially from bottom to top on the surface of the basic road surface. The bottom layer 3, the sticky layer 2 and the luminous wear surface layer 1 of the high-permeable energy storage structure can be completed. The paving construction realizes the integrity and integrated construction of each layer of the present invention. The construction quality is excellent in balance and stability, and the sticky layer One 2 realizes the integration and integration of the luminous wear surface layer 1 and the bottom layer 3 of the high-permeable energy storage structure.

In practical applications, the gaps of the luminous wear surface layer 1 are small, and the gaps of the bottom layer 3 of the high-permeable energy storage structure are large. Pollutants with larger particle sizes cannot pass through the gaps of the bottom layer 3 of the high-permeable energy storage structure. Under normal maintenance work It can be removed. Part of the pollutants with smaller particle size will flow through the gaps of the luminous abrasion surface layer 1 to the gaps of the bottom layer 3 of the high-permeable energy storage structure, which improves the anti-scattering ability of the road surface; under the action of rain, it is stored in the high-permeable energy storage The pollutants in the voids of the bottom layer 3 of the structure will flow out smoothly with the rain; due to the difference in the voids between the luminous abrasion surface layer 1 and the bottom layer 3 of the high-permeable energy storage structure, under the action of rainwater flow, the voids in the lower layer will form a negative pressure, which will adhere to the surface layer. Pollutants have a cleaning effect, so as to realize that the luminous pavement structure can maintain high water permeability for a long time; the clean road state ensures the luminous effect is long-lasting and durable; the high-permeable energy storage structure layer is a super-large void structure and uses a thermoplastic binder. The high-permeable energy storage structure layer has strong deformability and can withstand greater temperature shrinkage and stress deformation. At the same time, the luminous wear surface layer 1 is a permeable structure and has a certain deformability, so that the luminous pavement structure will not crack The weather resistance, comfort, and flatness are all good.

Preferably, the binder is preferably a transparent epoxy resin, and the transparent epoxy resin has high light transmittance, which improves the luminous brightness of the present invention and ensures the luminous effect. Preferably, the light-transmitting powder is glass powder (such as transparent glass powder), resin, PETG (non-crystalline copolyester), acrylic powder, etc., preferably transparent glass powder, and the particle size of the transparent glass powder is 0.5-1 mm. Preferably, the particulate solids are colored particulate solids, such as one or more of red particulate solids, white particulate solids, black particulate solids, and the like. Preferably, the particulate solid is white pebbles, red pebbles, black pebbles, etc. Preferably, the particle size of the particulate solid is 3 to 5 mm. Preferably, the luminous material is a mixture of strontium aluminate and rare elements, the particle size of the mixture is 5 to 45 μm, the density is 3.4 to 3.6 g/cm ³ , and the luminous peak is 520 ± 5 nm. Preferably, the thickness dimension of the luminous abrasion surface layer 1 is 3-8 mm; the thickness dimension of the bottom layer 3 of the high-permeability energy storage structure is 30-50 mm. Preferably, the mass percentages of particulate solids, translucent powders, luminous materials and binders in the luminous wear surface layer 1 are 40-50%, 5-10%, 25-50%, and 5-15%, respectively.

Preferably, the bottom layer 3 of the high-permeable energy storage structure is superimposed with the adhesive layer two 4, by first spreading the adhesive layer two 4 on the basic road surface, then paving the high-permeable energy storage structure layer, and then paving the adhesive layer two, Finally, pave the luminous and worn surface layer 1; through the adhesive layer 2 4, the reliability and tightness of the connection between the high-permeable energy storage structure layer and the basic road surface are improved. Preferably, the adhesive layer (ie, adhesive layer two and adhesive layer two 4) is a transparent resin layer, the transparent resin layer includes epoxy resin, curing agent and diluent, epoxy resin, curing agent and diluent occupy the transparent resin layer The mass percentages are respectively 60 to 80%, 15 to 30%, and 5 to 10%. Preferably, the thickness dimension of the adhesive layer one 2 is 0.1-0.5 mm, the thickness dimension of the adhesive layer two 4 is 0.3-1 mm, and the thickness dimension of the adhesive layer two 4 is greater than the thickness dimension of the adhesive layer 1-2.

Preferably, the fluorescent particles are resin-based fluorescent stones, and the particle size of the fluorescent particles is 8-12mm; the thermoplastic binder is a transparent binder, and the transparent binder consists of transparent base oil, SBS (Styreneic Block Copolymers, styrene-butadiene- Styrene block copolymer) and hydrogenated resin. The bottom layer 3 of the high-permeability energy storage structure also includes granular solids, and the pass-through rate of the granular solids through the sieve with an aperture of 0.075 mm is 95-100%. It is worth noting that the material of the particulate solids of the bottom layer 3 of the high-permeability energy storage structure and the particulate solids of the luminous abrasion surface layer 1 can be the same or different, and their particle sizes can also be the same or different.

In another embodiment of the present invention, different from the foregoing embodiment, the fluorescent particles are glass-based fluorescent stones, and the particle size of the glass-based fluorescent stones is 8-12 mm.

In another embodiment of the present invention, different from the above-mentioned embodiment, the fluorescent particles are a mixture of resin-based fluorescent stones and glass-based fluorescent stones, and the particle size of the mixture is 8-12 mm.

In another embodiment of the present invention, different from the foregoing embodiment, the porosity of the luminous wear surface layer 1 is 10-13%, and the porosity of the bottom layer 3 of the high-permeability energy storage structure is 25-30%.

In another embodiment of the present invention, the difference from the above-mentioned embodiment is that the particle size of the transparent glass powder is 0.6-0.8mm; the granular solid is white pebbles, and the particle size of the white pebbles is 4mm; the luminous material is strontium aluminate A mixture with rare elements. The particle size of the mixture is 20-40μm, the density is 3.5g/cm ³ , and the luminous peak is 520±5nm; the thickness of the luminous abrasion surface layer 1 is 4-6mm; the thickness of the bottom layer 3 of the highly water-permeable energy storage structure It is 40mm; the mass percentages of particulate solids, translucent powder, luminous materials and binders in the luminous wear surface layer 1 are: 45%, 8%, 35%, and 12%, respectively. The transparent resin layer includes epoxy resin, curing agent and diluent, and the mass percentages of the epoxy resin, curing agent and diluent in the transparent resin layer are 70%, 23%, and 7%, respectively.

It should be noted that the above embodiments can be freely combined as required. The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also It should be regarded as the protection scope of the present invention.

Claims

A high-permeability long-lasting luminous pavement structure, which is characterized in that it comprises:

The luminous abrasion surface layer, the sticky layer and the bottom layer of the high-permeable energy storage structure are superimposed from top to bottom;

The luminous wear surface layer includes granular solids, light-transmitting powder, luminous materials, and binders. The granular solids, the light-transmitting powder, the luminous materials and the binder are mixed to form a mixture one, and the mixture one Paving to form a luminous wear surface layer with a porosity of 8-15%;

The bottom layer of the high water-permeable energy storage structure includes fluorescent particles and a thermoplastic binder. The fluorescent particles and the thermoplastic binder are mixed to form a second mixture, and the second mixture is spread to form a highly water-permeable porosity of 20-35%. Bottom layer of energy storage structure.
The high-permeability long-lasting luminous pavement structure according to claim 1, characterized in that:

An adhesive layer is superimposed under the bottom layer of the high-permeability energy storage structure; and/or,

The binder is transparent epoxy resin.
The high-permeability long-lasting luminous pavement structure according to claim 1 or 2, characterized in that:

The adhesive layer is a transparent resin layer, and the transparent resin layer includes an epoxy resin, a curing agent, and a diluent. The epoxy resin, the curing agent, and the diluent account for the respective mass percentages of the transparent resin layer. It is 60 to 80%, 15 to 30%, and 5 to 10%.
The high-permeability long-lasting luminous pavement structure according to claim 1 or 2, characterized in that:

The particle size of the particulate solid is 3 to 5 mm, and the particulate solid is a colored particulate solid.
The high-permeability long-lasting luminous pavement structure according to claim 1 or 2, characterized in that:

The light-transmitting powder is transparent glass powder, and the particle size of the transparent glass powder is 0.5-1 mm.
The high-permeability long-lasting luminous pavement structure according to claim 1 or 2, characterized in that:

The luminous material is a mixture of strontium aluminate and rare elements, the particle size of the mixture is 5 to 45 μm, the density of the mixture is 3.4 to 3.6 g/cm 3 , and the luminescence peak of the mixture is 520 ± 5 nm.
The high-permeability long-lasting luminous pavement structure according to claim 1 or 2, characterized in that:

The mass percentages of the particulate solids, the translucent powder, the luminous material and the binder in the luminous abrasion surface layer are respectively: 40-50%, 5-10%, 25-50%, 5-15 %.
The high-permeability long-lasting luminous pavement structure according to claim 1 or 2, characterized in that:

The thickness dimension of the luminous wear surface layer is 3-8mm;

The thickness dimension of the bottom layer of the high-permeable energy storage structure is 30-50 mm.
The high-permeability long-lasting luminous pavement structure according to claim 1 or 2, characterized in that:

The fluorescent particles are at least one of resin-based fluorescent stones and glass-based fluorescent stones, and the particle diameter of the fluorescent particles is 8-12 mm;

The thermoplastic binder is a transparent binder prepared from transparent base oil, SBS and hydrogenated resin.
The high-permeability long-lasting luminous pavement structure according to claim 1 or 2, characterized in that:

The bottom layer of the high-permeability energy storage structure also includes granular solids, and the pass-through rate of the sieve with a hole diameter of 0.075 mm is 95-100%.