阅读说明：本技术 一种用于制备半柔性荧光路面的材料及应用方法 (Material for preparing semi-flexible fluorescent pavement and application method ) 是由 沙爱民 王文通 贾猛 卢震 蒋玮 李新舟 袁东东 于 2020-06-29 设计创作，主要内容包括：本发明一种用于制备半柔性荧光路面的材料及应用方法,包括作为母体材料的沥青混合料和作为基体材料的荧光混凝土胶浆,沥青混合料的重量百分比为70-80％,荧光混凝土胶浆的重量百分比为20-30％；沥青混合料中各组分按重量份数计：SBS改性沥青1～2份、粗集料4～5份、细集料0.4～0.9份、石灰石矿粉0.3～0.5份、高粘度改性添加剂0.01～0.02份；粗集料为粒径为13.2～16mm的玄武岩,细集料为粒径为4.5～9mm的天然砂；荧光混凝土胶浆中各组分按重量份数计：白色硅酸盐水泥0.6～1.6份、特细砂0.2～0.4份、减水剂0.1～0.2份、粉煤灰0.05～0.1份、黄绿色荧光石颗粒0.2～0.3份、玻璃微珠0.2～0.4份、水0.4～0.8份、SD乳液0～0.4份、聚乙烯醇0.01～0.04份。本发明具有光致发光功能,发光强度高,发光时间长,路面抗滑性能好,耐久性能强,路面整体强度高。(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.)

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.

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%.