CN111333369A - Road traffic marking material and preparation method thereof - Google Patents

Abstract

The invention provides a road traffic marking material and a preparation method thereof, characterized in that the road traffic marking material comprises the following components in parts by weight: 3-8 parts of cementitious material, 20-25 parts of coarse aggregate, 20-25 parts of fine aggregate, 6-8 parts of filler, 1-2 parts of curing agent, 1-2 parts of anti-aging agent. The preparation method includes the following steps: (1) weighing all the components according to the parts by weight, for later use; (2) mixing and stirring the cementing material and the curing agent according to the proportions to make the cementing agent; (3) mixing the coarse aggregate and fine aggregate The titanium dioxide and titanium dioxide are mixed evenly, the cementing agent is injected, and the stirring is continued until uniform, and then the reflective powder and the anti-aging agent are added in sequence, and the road traffic marking material of the present invention can be obtained by stirring rapidly. The road traffic marking material prepared by the invention adopts the form of concrete and has a skeleton structure, and its road performance is equivalent to that of the road wear layer, so that the durability and functionality of the marking line can be maintained for a long time, and the service life of the marking line can be prolonged.

Description

A kind of road traffic marking material and preparation method thereof

technical field

The invention belongs to the field of road traffic marking, in particular to a road traffic marking material and a preparation method thereof.

Background technique

As a traffic safety means to restrict the driving behavior of drivers, road traffic markings not only ensure driving safety and smooth traffic, but also provide drivers with reliable driving guidance. However, at present, a large number of road markings are in low-performance service state, and problems such as peeling, cracking, and peeling will occur in the early stage of service, and the integrity of the marking itself cannot be continuously guaranteed, and the durability is seriously insufficient. On the other hand, under the action of natural environment erosion, vehicle rolling and friction, the marking line is seriously worn, which leads to the reduction of the general visibility of the marking line.

Therefore, the current service life of various types of road markings is not more than 5 years at the longest, and the shortest is 3 months. Compared with the design life of the road (10-15 years), the service life of the markings is obviously insufficient, and maintenance and repairs are often required. This leads to an increase in maintenance costs and a decline in service levels, and even an increase in traffic accidents.

At present, my country's road traffic marking coatings are still dominated by hot-melt reflective marking coatings, accounting for more than 80% of the market, solvent-based coatings accounting for nearly 20%, and two-component coatings, water-based coatings and preformed road markings are not yet available. Can be widely promoted and used. In order to improve the use level of road marking paint in my country, Chinese scholars have made a lot of research, such as "a self-luminous road marking paint and its application" with the publication number CN105860738D, and the publication number CN106147324. Luminous reflective road marking paint and its preparation method", "Super wear-resistant water-based road marking paint and its preparation method" with publication number CN109233530A, "Night continuous self-luminous, strong reflective road marking with publication number CN107459907" and its production method", "Water-based self-luminous reflective road markings" with the publication number of CN205088588, etc., but only improving one or several performances of the markings can not be considered in coordination with the attenuation of road performance, and cannot be used for In order to coordinate with the road performance of the road itself, the appearance of road surface diseases will affect the use effect of road markings. At the same time, the existing technologies are all layered "coating" or "pasting" on the road surface in the form of adhesion and sticking. The biggest drawback of layered spraying is that the adhesion between the marking primer layer and the road surface is poor, which may lead to Problems such as the falling off of road markings under rain erosion. In general, there is no substantial breakthrough in material composition and structural mode.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a road traffic marking material and a preparation method thereof, which can change the material composition and structural mode of the current marking. Specifically, a skeleton structure is formed by using a transparent cementing agent and white or transparent materials of different particle sizes, and then high-reflecting powder is added as a filler, and a kind of marking material in the form of concrete is formed by mixing. Make the road markings have road performance equivalent to the wear layer, fundamentally improve the durability of the road markings, and achieve the purpose of prolonging the life of the road markings and improving the service state.

The road traffic marking material according to the present invention includes 3-8 parts of cementitious material, 20-25 parts of coarse aggregate, 20-25 parts of fine aggregate, 6-8 parts of filler, 1-2 parts of curing agent, 1 to 2 parts of aging agent are mixed evenly.

The cementing material is one of E51 epoxy resin or E44 epoxy resin.

The coarse aggregate is refined quartz sand, which requires pure white color, no impurities, Mohs hardness of 7 Mohs, and particle size requirements of 4 to 8 meshes and 8 to 14 meshes.

The fine aggregates are refined quartz sand and glass microbeads; wherein, refined quartz sand requires pure white color, no impurities, Mohs hardness of 7 Mohs, and particle size requirements of 48-100 mesh, 100-200 mesh; glass The microbeads are high-refractive glass microbeads, which are required to have a smooth and round appearance, a circularity rate of more than 85%, a Mohs hardness of 6 to 7 Mohs, a refractive index of Nd ≥ 1.9, and a particle size of 14 to 28 mesh, 28 ~48 meshes.

The fillers are reflective powder and titanium dioxide; wherein, the reflective powder is a high-refractive index reflective powder, the refractive index is Nd≥1.93, the particle size is required to be 800-1000 mesh, and the parts by weight are 5-7 parts; the titanium dioxide is rutile type Titanium dioxide, specifically R2 type rutile type titanium dioxide, the particle size is required to be 800-1000 mesh, and the parts by weight are 1 part.

The curing agent is a modified polyamine curing agent, which is required to be transparent and colorless.

The anti-aging agent is a plastic anti-aging agent, which is required to be transparent and colorless.

The above-mentioned method for preparing a road traffic marking material comprises the following steps:

(1) Material preparation: Weigh 3-8 parts of cementing material, 20-25 parts of coarse aggregate, 20-25 parts of fine aggregate, 6-8 parts of filler, 1-2 parts of curing agent, anti-aging 1 to 2 doses;

(2) Making cementing agent: mix the weighed cementing material and curing agent according to the proportion, and the proportioning requirements are curing agent according to the weight parts: cementing material = 1: (3~4), and stir to form a uniform and consistent Transparent fluid cement;

(3) Mixing the mixture: Mix the coarse aggregate, fine aggregate (the ratio between each particle size range meets the specification requirements) and titanium dioxide evenly, inject the binder, continue to stir until uniform, and then add the reflective powder and The anti-aging agent is rapidly stirred, and the road traffic marking material of the present invention can be obtained after mixing.

Beneficial effects of the present invention:

(1) Concrete road markings with a graded structure are formed by cementing materials, aggregates and fillers to ensure that their road performance is equivalent to the road wear layer, which is mainly reflected in high temperature stability, low temperature crack resistance, water stability, Slip resistance, etc., effectively improve the durability of marking lines;

(2) The skeleton structure composed of transparent binder and white or transparent aggregate can improve the anti-wear ability of the marking line, thereby maintaining the integrity of the marking line for a long time. The use of high refractive index reflective fractions as fillers can provide good general visibility and ensure good visibility of road traffic markings in daytime and dry conditions.

Description of drawings

Fig. 1 gradation curve diagram of embodiment 1 of the present invention

Fig. 2 gradation curve diagram of embodiment 2 of the present invention

Fig. 3 gradation curve diagram of embodiment 3 of the present invention

4 is a schematic diagram of the application of the present invention

Detailed ways

A schematic diagram of the application of Embodiments 1 to 3 of the present invention is shown in FIG. 4 . The gradation curves of Examples 1 to 3 of the present invention are shown in Figures 1 to 3, which respectively represent the distribution of particles at all levels of particle size in the coarse and fine aggregates and fillers in Examples 1 to 3, reflecting the ratio between the components relation.

Example 1

A road traffic marking material, the road traffic marking material is composed of cementing material, coarse aggregate, fine aggregate, filler, curing agent and anti-aging agent; wherein, the cementing material adopts E51 epoxy resin, and the coarse aggregate adopts E51 epoxy resin. Refined quartz sand, fine aggregate using refined quartz sand and high-refractive glass beads, filler using high-refractive index reflective powder and R2 type rutile titanium dioxide, curing agent using 593 transparent colorless curing agent, anti-aging agent using transparent colorless Antioxidant 1010.

The preparation method of the above-mentioned road traffic marking material, the specific implementation steps are:

(1) Preparation: Weigh 3 parts of E51 epoxy resin, 1 part of 593 transparent colorless curing agent, 2 parts of transparent colorless antioxidant 1010, 21.5 parts of coarse aggregate, 21.5 parts of fine aggregate ( Refined quartz sand and high-refractive glass beads in total), 8 parts of filler (high-refractive-index reflective powder and R2 type rutile titanium dioxide in total); the refined quartz sand used for the coarse aggregates is required to have a particle size of 4 (4.75mm) )～8 mesh (2.36mm), 8 (2.36mm)～14 mesh (1.18mm), the proportion of each part is (2.36～4.75mm): (1.18～2.36mm)=14:29, namely 4～8 mesh part 7 parts, 14.5 parts of 8-14 mesh part; the refined quartz sand used for fine aggregate, the particle size requirements are 48 (0.30mm)～100 mesh, 100 (0.15mm)～200 mesh (0.075mm), and the proportion of each part is (0.15～0.30mm): (0.075～0.15mm)=9:2, that is, 4.5 parts of the 48～100 mesh part, and 1 part of the 100～200 mesh part; the high-refractive glass beads used in the fine aggregate have a particle size requirement of 14 (1.18mm)～28 mesh (0.60mm), 28 (0.60mm)～48 mesh (0.30mm), the proportion of each part is (0.6～1.18mm): (0.30～0.60mm)=12:20, namely 14 6 parts of ~28 mesh parts, 10 parts of 28 ~ 48 mesh parts; 7 parts of high refractive index reflective powder with mesh number of 800 ~ 1000 mesh and 1 part of R2 type rutile titanium dioxide with mesh number of 800 ~ 1000 mesh;

(2) Making cement: Weigh E51 epoxy resin and 593 transparent curing agent in a ratio of 1:3 by weight, and stir and mix to form a uniform and transparent fluid cement;

(3) Mixing the mixture: mix the coarse and fine aggregates and R2 type rutile type titanium dioxide evenly; inject the binder and stir for two minutes; then add the high refractive index reflective powder and antioxidant 1010 in turn, and quickly stir for two Within minutes, the road traffic marking material of Example 1 was obtained.

According to "Technical Specification for Highway Asphalt Pavement Construction" (JTG F40-2004) and "Technical Specification for Maintenance of Highway Asphalt Pavement" (JTG 5142-2019), the road performance of the marking mixture is evaluated, mainly including high temperature stability, low temperature crack resistance , water stability and friction coefficient pendulum value, the road traffic marking material prepared in Example 1 of the present invention is tested for road performance, and the technical indicators are based on the parameters of the road performance of the asphalt pavement wear layer. The test results are shown in Table 1.

Table 1 Test results of road performance of road marking materials

A functional performance test was carried out on the road traffic marking material prepared in Example 1 of the present invention, and the specific verification results are shown in Table 2.

Table 2 Test results of functional performance of road marking materials

From the road performance test results of the road marking material in Table 1 and the functional performance test results of the road marking material in Table 2, it can be known that the road performance and functional performance of the road marking material in Example 1 of the present invention meet the requirements of the specification. , can reach the standard of road traffic marking.

Example 2

A road traffic marking material, the road traffic marking material is composed of cementing material, coarse aggregate, fine aggregate, filler, curing agent and anti-aging agent, wherein the cementing material is E51 epoxy resin, and the coarse aggregate is refined Quartz sand and fine aggregate use refined quartz sand and high-refractive glass beads, high-refractive-index reflective powder and R2-type rutile titanium dioxide as filler, 593 transparent and colorless curing agent as curing agent, and transparent and colorless anti-aging agent as anti-aging agent. Oxygen 1010.

The preparation method of the above-mentioned road traffic marking material, the specific implementation steps are:

(1) Material preparation: weigh 3 parts of E51 epoxy resin, 1 part of 593 transparent colorless curing agent, 2 parts of transparent colorless antioxidant 1010, 22 parts of coarse aggregate, 22 parts of fine aggregate ( Refined quartz sand and high-refractive glass beads in total), 7 parts of filler (high-refractive-index reflective powder and R2-type rutile titanium dioxide in total); among them, the refined quartz sand used for coarse aggregates is required to have a particle size of 4 (4.75mm) ～8 mesh (2.36mm), 8 (2.36mm)～14 mesh (1.18mm), the proportion of each part is (2.36～4.75mm): (1.18～2.36mm)=15:29, namely 4～8 mesh part 7.5 parts, 8-14 mesh parts, 14.5 parts; refined quartz used for fine aggregates, the particle size requirements are 48(0.30mm)~100 meshes, 100(0.15mm)~200 meshes (0.075mm), and the proportion of each part is (0.15 ～0.30mm): (0.075～0.15mm)=9:7, that is, 4.5 parts of the 48-100 mesh part and 3.5 parts of the 100-200 mesh part; the high-refractive glass beads used for fine aggregates, the particle size requirement is 14 ( 1.18mm)～28 mesh (0.60mm), 28 (0.60mm)～48 mesh (0.30mm), the proportion of each part is (0.6～1.18mm): (0.30～0.60mm)=10:18, namely 14～28 5 parts of mesh part, 9 parts of 28-48 mesh part; 6 parts of high refractive index reflective powder with mesh number of 800-1000 mesh and 1 part of R2 type rutile titanium dioxide with mesh number of 800-1000 mesh;

(2) Making cement: Weigh E51 epoxy resin and 593 transparent curing agent in a ratio of 1:3 by weight, and stir and mix to form a uniform and transparent fluid cement;

(3) Mixing the mixture: mix the coarse and fine aggregates and R2 type rutile type titanium dioxide evenly; inject the binder and stir for two minutes; then add the high refractive index reflective powder and antioxidant 1010 in turn, and quickly stir for two Within minutes, the road traffic marking material of Example 2 was obtained.

Example 3

A road traffic marking material, the road traffic marking material is composed of cementing material, coarse aggregate, fine aggregate, filler, curing agent and anti-aging agent, wherein the cementing material is E51 epoxy resin, and the coarse aggregate is refined Quartz sand and fine aggregate use refined quartz sand and high-refractive glass beads, high-refractive-index reflective powder and R2-type rutile titanium dioxide as filler, 593 transparent and colorless curing agent as curing agent, and transparent and colorless anti-aging agent as anti-aging agent. Oxygen 1010.

The preparation method of the above-mentioned road traffic marking material, the specific implementation steps are:

(1) Material preparation: Weigh 4 parts of E51 epoxy resin, 1 part of 593 transparent colorless curing agent, 2 parts of transparent colorless antioxidant 1010, 21.5 parts of coarse aggregate, 23.5 parts of fine aggregate ( Refined quartz sand and high-refractive glass beads in total), 6 parts of filler (high-refractive-index reflective powder and R2-type rutile titanium dioxide in total); among them, the refined quartz sand used for the coarse aggregate is required to have a particle size of 4 (4.75mm) ～8 mesh (2.36mm), 8 (2.36mm)～14 mesh (1.18mm), the proportion of each part is (2.36～4.75mm): (1.18～2.36mm)=15:28, namely 4～8 mesh part 7.5 8-14 mesh part, 14 parts; the refined quartz sand used for fine aggregate, the particle size requirements are 48 (0.30mm)～100 mesh, 100 (0.15mm)～200 mesh (0.075mm), and the proportion of each part is ( 0.15～0.30mm): (0.075～0.15mm)=10:8, that is, 5 parts of the 48～100 mesh part, 4 parts of the 100～200 mesh part; the high-refractive glass beads used for the fine collection material, the particle size requirement is 14 (1.18mm)～28 mesh (0.60mm), 28 (0.60mm)～48 mesh (0.30mm), the proportion of each part is (0.6～1.18mm): (0.30～0.60mm)=12:17, namely 14～ 6 parts of 28 mesh part, 8.5 parts of 28-48 mesh part; 5 parts of high refractive index reflective powder with mesh number of 800-1000 mesh and 1 part of R2 type rutile titanium dioxide with mesh number of 800-1000 mesh;

(2) Making cementing agent: Weigh E51 epoxy resin and 593 transparent curing agent in a ratio of 1:4 by weight, and stir and mix to form a uniform and transparent fluid cementing agent;

(3) Mixing the mixture: mix the coarse and fine aggregates and R2 type rutile type titanium dioxide evenly; inject the binder and stir for two minutes; then add the high refractive index reflective powder and antioxidant 1010 in turn, and quickly stir for two Within minutes, the road traffic marking material of Example 3 was obtained.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the idea of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the present invention. within the scope of protection.

Claims (9)

1. The road traffic marking material is characterized by comprising the following components in parts by weight: 3-8 parts of cementing material, 20-25 parts of coarse aggregate, 20-25 parts of fine aggregate, 6-8 parts of filler, 1-2 parts of curing agent and 1-2 parts of anti-aging agent, and the cementing material is prepared by uniformly mixing.

2. The road traffic marking material of claim 1, wherein the cementitious material is one of E51 epoxy or E44 epoxy.

3. The road traffic marking material of claim 1, wherein the coarse aggregate is refined quartz sand, the color is pure white and free of impurities, the Mohs hardness reaches 7 Mohs, and the particle size is 4-8 meshes and 8-14 meshes.

4. The road traffic marking material of claim 1, wherein the fine aggregate is refined quartz sand and glass beads; wherein the refined quartz sand is required to be pure white in color and free of impurities, the Mohs hardness reaches 7 Mohs, and the particle size is required to be 48-100 meshes and 100-200 meshes; the glass beads are high-refraction glass beads, the appearance is required to be smooth and round, the rounding rate is more than 85%, the Mohs hardness reaches 6-7 Mohs, the refractive index Nd is more than or equal to 1.9, and the particle size is required to be 14-28 meshes and 28-48 meshes.

5. The road traffic marking material of claim 1, wherein the filler is reflective powder and titanium dioxide; the reflective powder is high-refractive-index reflective powder, the refractive index Nd is larger than or equal to 1.93, and the particle size requirement is 800-1000 meshes; the titanium dioxide is R2 type rutile titanium dioxide, and the particle size requirement is 800-1000 meshes.

6. The road traffic marking material of claim 1, wherein the curing agent is a clear, colorless curing agent.

7. The road traffic marking material of claim 1, wherein the age resister is a plastic age resister.

8. The method of preparing a road traffic marking material of claim 1, comprising the steps of:

(1) preparing materials: weighing 3-8 parts of cementing material, 20-25 parts of coarse aggregate, 20-25 parts of fine aggregate, 6-8 parts of filler, 1-2 parts of curing agent and 1-2 parts of anti-aging agent according to parts by weight;

(2) preparing a cementing agent: mixing the weighed cementing material with a curing agent according to a ratio, wherein the ratio is required to be the curing agent in parts by weight: (3-4) stirring the cementing material to form uniform transparent fluid cementing agent;

(3) mixing a mixture: mixing the coarse aggregate, the fine aggregate (the proportion among the particle size ranges meets the standard requirement) and the titanium dioxide uniformly, injecting a cementing agent, continuously stirring until the mixture is uniform, then sequentially adding the reflective powder and the anti-aging agent, quickly stirring, and stirring to obtain the road traffic marking material; wherein the total mixing time is more than or equal to 300 s.

9. The method for preparing a road traffic marking material according to claim 8, wherein the cementitious material is one of E51 epoxy resin or E44 epoxy resin; the coarse aggregate is refined quartz sand; the fine aggregate is refined quartz sand and high-refraction glass beads; the filler is reflective powder and titanium dioxide; the curing agent is a transparent colorless curing agent; the anti-aging agent is a plastic anti-aging agent.

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