A method for detecting a color-changing agent for asphalt pavement

Abstract

The present invention relates to a method for detecting a color-changing agent for asphalt pavement, including: Step S1, placing the asphalt pavement in a groove according to construction requirements and spraying the color-changing agent to be detected on the asphalt pavement; Step S2, after a first preset time, starting the first detection group and the second detection group to perform wear detection on the color-changing agent of the asphalt pavement to be detected. After a second preset time, starting the third detection group to perform wear detection on the color-changing agent of the asphalt pavement to be detected. After a preset detection time, the central control unit determines the wear resistance coefficient Y of the color-changing agent according to the wear degree and wear amount obtained from the wear maps of each detection site; Step S3, starting the rainwater simulation system to perform anti-slip detection on the asphalt pavement applied with the color-changing agent. The central control unit obtains the quality parameter A of the color-changing agent according to the wear resistance coefficient and the anti-slip coefficient H, and sets A = Y / Y0 + H / H0, where Y0 is the target wear resistance coefficient of the color-changing agent to be detected, and H0 is the target anti-slip coefficient of the color-changing agent to be detected.

Description

Technical Field

[0001] The present invention relates to the field of color-changing agent detection, and particularly to a method for detecting a color-changing agent for asphalt pavement. Background Art

[0002] The color-changing agent for asphalt pavement is a modified polyurethane system with a unique structure, which mainly plays a role in secondary coloring of the pavement, effectively improving the wear resistance, anti-slip performance and beautification effect of the pavement. The color-changing agent for asphalt pavement can be applied to asphalt pavement, cement pavement, sidewalk panels and other pavements. The thin coating construction will neither change the structure of the pavement nor affect the anti-slip performance of the original pavement. The color fastness and service life of the color have been certified.

[0003] At present, the detection of the color-changing agent for asphalt pavement mainly focuses on detecting its effective component content, viscosity, penetration and other characteristics to ensure the role of the color-changing agent for asphalt pavement when applied to the asphalt pavement. However, the wear and anti-slip performance of the asphalt pavement with the applied color-changing agent are not simulated and detected in actual application, that is, the actual application function of the color-changing agent cannot be ensured. Summary of the Invention

[0004] Therefore, the present invention provides a method for detecting a color-changing agent for asphalt pavement, which can solve the technical problem of being unable to simulate the wear resistance coefficient of the color-changing agent under the comprehensive conditions of different rotation speeds, different loads and different usage times.

[0005] To achieve the above object, the present invention provides a method for detecting a color-changing agent for asphalt pavement, including:

[0006] Step S1, place the asphalt pavement in the groove according to the construction requirements, and spray the color-changing agent to be detected on the asphalt pavement;

[0007] Step S2, after the first preset time, start the first detection group and the second detection group to perform wear detection on the color-changing agent of the asphalt pavement to be detected. After the second preset time, start the third detection group to perform wear detection on the color-changing agent of the asphalt pavement to be detected. After the preset detection time, the image processing module obtains the wear images of each detection site, and the central control unit determines the wear resistance coefficient Y of the color-changing agent according to the wear degree and wear amount obtained from the wear images of each detection site;

[0008] Step S3, start the rain simulation system to perform anti-slip detection on the asphalt pavement with the applied color-changing agent. The central control unit obtains the quality parameter A of the color-changing agent according to the wear resistance coefficient and the anti-slip coefficient H, and sets A = Y / Y0 + H / H0, where Y0 is the target wear resistance coefficient of the color-changing agent to be detected, and H0 is the target anti-slip coefficient of the color-changing agent to be detected.

[0009] Further, the central control unit determines the wear degree y of each detection site according to the wear depth, area of each detection site and the color change amount of the color-changing agent, and sets y = d×s×cj, where d is the wear depth of each detection site, s is the wear area of each detection site, and cj is the color change adjustment coefficient of the color-changing agent. Among them,

[0010] When the color change amount of the color-changing agent at each detection site is greater than or equal to the preset color change amount of the color-changing agent, the central control unit selects the first preset color-changing agent c1 as the color change adjustment coefficient of the color-changing agent;

[0011] When the color change amount of the color-changing agent at each detection site is less than the preset color change amount of the color-changing agent, the central control unit selects the second preset color-changing agent c2 as the color change adjustment coefficient of the color-changing agent;

[0012] Among them, j = 1, 2.

[0013] Further, in the step S2, the first motor is started to provide the first load force for the first detection wheel and the second detection wheel. The first detection wheel rotates on the asphalt pavement applied with the color-changing agent at the first speed, and the second detection wheel rotates on the asphalt pavement applied with the color-changing agent at the second speed. At the same time, the second motor is started to provide the second load force for the third detection wheel and the fourth detection wheel. The third detection wheel rotates on the asphalt pavement applied with the color-changing agent at the first speed, and the fourth detection wheel rotates on the asphalt pavement applied with the color-changing agent at the second speed. After the preset detection time, the central control unit obtains the wear degree y1 of the asphalt pavement at the first detection site through the image processing module, obtains the wear amount M1 of the first detection site through the wear amount collection module. The central control unit obtains the wear degree y2 of the asphalt pavement at the second detection site through the image processing module, and obtains the wear amount M2 of the second detection site through the wear amount collection module.

[0014] Further, in the step S2, after the second preset time, the third motor is started to provide the first load force for the fifth detection wheel and the sixth detection wheel. The fifth detection wheel rotates on the asphalt pavement applied with the color-changing agent at the first speed, and the sixth detection wheel rotates on the asphalt pavement applied with the color-changing agent at the second speed. The central control unit obtains the wear degree y5 and the wear amount M5 of the color-changing agent on the asphalt pavement at the fifth detection site, and the wear degree y6 and the wear amount M6 of the color-changing agent on the asphalt pavement at the sixth detection site.

[0015] Further, the central control unit determines a reference value for the wear degree of the color-changing agent according to the wear amounts of the first detection site and the second detection site. When the difference between the wear amount M2 of the second detection site and the wear amount M1 of the first detection site is less than or equal to the first preset wear amount difference △m1, the central control unit obtains the wear degree of the second detection site and compares it with the wear degree of the first detection site. When the difference between the wear degree of the second detection site and the wear degree of the first detection site is less than or equal to the preset wear degree difference, the central control unit takes the wear degree y1 of the first detection site as the reference value for the wear degree of the color-changing agent. When the difference between the wear degree of the second detection site and the wear degree of the first detection site is greater than the preset wear degree difference, the central control unit takes the wear degree y2 of the second detection site as the reference value for the wear degree of the color-changing agent.

[0016] Further, the central control unit compares the wear degrees of the i-th detection site and the (i + 2)-th detection site. When the difference between the wear degree y(i + 2) of the (i + 2)-th detection site and the reference value yi of the wear degree of the color-changing agent is less than or equal to the first preset wear degree difference △y1, the central control unit compares the wear amounts of the i-th detection site and the (i + 2)-th detection site. When the difference between the wear amount M(i + 2) of the (i + 2)-th detection site and the wear amount Mi of the i-th detection site is less than or equal to the second preset wear amount difference △m2, the central control unit obtains the wear resistance coefficient Y1 and sets Y1 = 1 / yi. When the difference between the wear amount M(i + 2) of the (i + 2)-th detection site and the wear amount Mi of the first detection site is greater than the second preset wear amount difference △m2, the central control unit selects the first wear amount adjustment coefficient k1 as the wear resistance adjustment coefficient and obtains the wear resistance coefficient Y2 = 1 / (yi × k1), where k1 = (M(i + 2) - Mi) / △m2.

[0017] Further, the central control unit compares the wear degrees of the i-th detection site and the (i + 2)-th detection site. When the difference between the wear degree y(i + 2) of the (i + 2)-th detection site and the reference value yi of the wear degree of the color-changing agent is greater than the first preset wear degree difference △y1, the central control unit selects the second wear amount adjustment coefficient k2 as the wear degree adjustment coefficient and obtains the wear resistance coefficient Y3, and sets Y3 = 1 / (yi × k2), where k2 = (y(i + 2) - yi) / △y1 × (F2 / F1).

[0018] Further, when the difference between the wear degree yi of the i-th detection site and the wear degree y(i + 4) of the (i + 4)-th detection site obtained by the central control unit is less than or equal to the second preset wear degree difference △y2, and the difference between the wear amount Mi of the i-th detection site and the wear amount M(i + 4) of the (i + 4)-th detection site obtained by the central control unit is less than or equal to the second preset wear amount difference △m2, the central control unit determines not to adjust the wear resistance coefficient. When the difference between the wear amount Mi of the i-th detection site and the wear amount M(i + 4) of the (i + 4)-th detection site obtained by the central control unit is greater than the second preset wear amount difference △m2, the central control unit obtains the wear resistance coefficient Yp1, and sets Yp1 = Yp×(△m2 / (M(i + 4)-Mi) / ), where p = 1, 2, 3.

[0019] Further, when the difference between the wear degree yi of the i-th detection site and the wear degree y(i + 4) of the (i + 4)-th detection site obtained by the central control unit is greater than the second preset wear degree difference △y2, the central control unit adjusts the wear resistance coefficient Yp to Yp2, and sets Yp2 = Yp×△y2 / (yi - y(i + 4).

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows. The present invention obtains the wear degree and wear amount of the target asphalt pavement applied with the color-changing agent under different rotation speeds, different loads, and different usage times, and combines its anti-slip coefficient to comprehensively obtain the quality of the color-changing agent. Among them, the central control unit calculates the wear degree of the color-changing agent at each detection site through the wear depth, wear area, and color change amount obtained from the wear images of the color-changing agent on the asphalt pavement to be detected at each detection site. The detection method of the color-changing agent in the present invention is simple, efficient, and realizes the simulation detection of the actual application of the color-changing agent to obtain more accurate and real detection results.

[0021] In particular, the present invention comprehensively analyzes the wear degree of each detection site through the wear depth, wear area, and the change in the color of the color-changing agent caused by wear. At the same time, the present invention divides the color change amount of the color-changing agent into two standards, and sets two color change adjustment coefficients of the color-changing agent according to the divided standards to evaluate the color change index of the color-changing agent in different detection environments. The central control unit compares the change in the color of the color-changing agent during the wear process at the detection site with the preset change amount respectively, selects the best color change adjustment coefficient of the color-changing agent, and then accurately obtains the wear degree of each detection site to grade the change in the wear degree of the road surface applied with the color-changing agent caused by wear in different detection environments.

[0022] In particular, the present invention sets the same load force with different rotation speeds to simulate the wear of the asphalt pavement applied with the color-changing agent, and uses the difference in the wear amount as the evaluation criterion to determine the reference value of the wear degree of the color-changing agent, and takes it as the standard value for evaluating the wear degree of the color-changing agent. Among them, when the difference in the wear amount of the road surface by the detection wheel with a higher rotation speed under the same load force and the wear amount of the road surface by the detection wheel with a lower rotation speed is low, it indicates that the friction speed has little influence on the wear of the color-changing agent. The central control unit sets the wear degree of the first detection site as the reference value of the wear degree. When the difference in the wear amount of the road surface by the detection wheel with a higher rotation speed under the same load force and the wear amount of the road surface by the detection wheel with a lower rotation speed is high, it indicates that the friction speed has a greater influence on the wear of the modifier. The central control unit selects the wear degree of the second detection site as the reference value of the wear degree.

[0023] In particular, after the present invention determines the reference value of the wear degree of the color-changing agent, it obtains the detection sites with the same speed as the reference value of the wear degree of the color-changing agent but different loads as the detection sites to be compared, obtains the wear degree of the detection sites to be compared, compares it with the reference value of the wear degree of the color-changing agent, and determines whether the load force has a greater influence on the color-changing agent. When the difference between the wear degree of the detection site to be compared and the reference value of the wear degree of the color-changing agent is small, it indicates that the load size has little influence on the wear degree of the modifier. The central control unit determines the wear resistance coefficient of the modifier according to the wear amounts of the two. Among them, if the difference between the wear amount of the detection site to be compared and the wear amount of the current detection site is small, it indicates that the load force has little influence on the wear degree of the color-changing agent. The central control unit takes the reciprocal of the wear degree of the modifier as the wear resistance coefficient. When the difference between the wear amount of the detection site to be compared and the wear amount of the current detection site is large, the central control unit takes the ratio of the difference between the two wear amounts and the preset wear amount difference as the adjustment coefficient to adjust the reference value of the wear degree, and takes the reciprocal of the adjusted wear degree of the color-changing agent as the wear resistance coefficient. When the difference between the wear degree of the comparison detection site obtained by the central control unit and the wear degree of the current detection site is large, it indicates that the load force has a greater influence on the wear of the color-changing agent. The central control unit takes the product of the ratio of the wear degree difference to the preset difference and the ratio of the second load force to the first load force as the wear degree adjustment coefficient to obtain the wear resistance coefficient of the color-changing agent.

[0024] In particular, the present invention uses the wear degrees of the third group of detection sites and the first group of detection sites to evaluate the influence of wear time on the wear resistance coefficient. The central control unit sets the detection site with the same rotation speed as the current detection site in the third group of detection sites as the detection site to be compared. If the difference in wear degree between the current detection site and the detection site to be compared is small, the central control unit determines the wear resistance coefficient based on the wear amounts of the two. Among them, if the difference in wear amount between the current detection site and the detection site to be compared is small, the central control unit does not adjust the wear resistance coefficient. If the difference in wear amount between the current detection site and the detection site to be compared is large, the central control unit reduces the wear resistance coefficient according to the difference in wear amount. And if the difference in wear degree between the current detection site and the detection site to be compared is large, it indicates that the service time has a greater influence on the wear degree of the color-changing agent. The central control unit reduces the wear resistance coefficient based on the difference in wear degree between the detection site to be compared and the current detection site to obtain an accurate wear resistance coefficient. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of the color-changing agent detection device for asphalt pavement in an embodiment of the invention;

[0026] Figure 2 It is a schematic diagram of the color-changing agent detection method for asphalt pavement in an embodiment of the invention. Detailed Embodiments

[0027] In order to make the objectives and advantages of the present invention clearer, the present invention will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and do not limit the protection scope of the present invention.

[0029] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0030] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Please refer to Figure 1 as shown, which is a schematic structural diagram of a color-changing agent detection device for an asphalt pavement according to an embodiment of the present invention, including

[0032] an asphalt pavement simulation module for simulating the asphalt pavement to be detected, the asphalt pavement simulation module includes a groove 7 for accommodating the asphalt pavement 8 to be detected, wherein the asphalt pavement to be detected is set according to the target asphalt pavement to which the color-changing agent is applied, and the asphalt pavement simulation module further includes a first support unit 5 and a second support unit 4 for maintaining the stability of the groove;

[0033] Wear module, used to wear the color-changing agent sprayed on the asphalt pavement to be detected. The wear module includes several detection groups for wearing different positions of the asphalt pavement to be detected at different rotation speeds. Each detection group is provided with a first driving unit 11 for providing a load force to each detection wheel 12 of each detection group and a second driving unit 13 for controlling the rotation speed of each detection wheel. Among them, the first detection group 1 is used to obtain a reference value of the wear degree of the color-changing agent, the second detection group 2 is used to obtain the influence of different load forces on the reference value of the wear degree of the color-changing agent to obtain the friction resistance coefficient of the color-changing agent, and the third detection group 3 is used to correct the friction resistance coefficient with the use time of the color-changing agent. The friction points of each detection wheel on the asphalt pavement sprayed with the color-changing agent are detection points. More specifically, the first detection group includes a first motor that provides a first load force to the first detection wheel and the second detection wheel. The first detection wheel of the first detection group rotates at a first rotation speed, and the second detection wheel of the first detection group rotates at a second rotation speed. The second detection group includes a second motor that provides a second load force to the third detection wheel and the fourth detection wheel. The third detection wheel rotates at a first rotation speed, and the fourth detection wheel rotates at a second rotation speed. The third detection group includes a third motor that provides a first load force to the fifth detection wheel and the sixth detection wheel. The fifth detection wheel rotates at a first rotation speed, and the sixth detection wheel rotates at a second rotation speed. Among them, the friction point between the first detection wheel and the asphalt pavement applied with the color-changing agent is the first detection site, the friction point between the second detection wheel and the asphalt pavement applied with the color-changing agent is the second detection site, the friction point between the third detection wheel and the asphalt pavement applied with the color-changing agent is the third detection site, the friction point between the fourth detection wheel and the asphalt pavement applied with the color-changing agent is the fourth detection site, the friction point between the fifth detection wheel and the asphalt pavement applied with the color-changing agent is the fifth detection site, and the friction point between the sixth detection wheel and the asphalt pavement applied with the color-changing agent is the sixth detection site;

[0034] Image processing module, used to obtain the wear images of the color-changing agent after detection on the asphalt pavement to be detected at each detection site;

[0035] Wear amount collection module, arranged on the asphalt pavement simulation module, used to collect the wear amounts at each detection site during the detection process. The wear amount collection module includes several dust collectors for collecting wear powder. Each dust collector is arranged at each detection site. To prevent the powder generated by wear from moving at each detection site, an isolation area 14 is arranged at each detection site to isolate each detection site;

[0036] The central control unit is connected to the wear module and the image processing module, and is used to calculate the wear degree of the color-changing agent at each detection site according to the wear depth, wear area, and color change amount obtained from the wear images of the color-changing agent on the asphalt pavement to be detected at each detection site. At the same time, the central control unit determines the wear degree according to the wear amount at each detection site in the first detection group, obtains the wear resistance coefficient of the color-changing agent according to the second detection group, and determines the influence degree of the service time on the wear degree based on the wear degree and wear amount in the third detection group to correct the wear resistance coefficient, and combines the anti-slip coefficient of the color-changing agent to determine the quality parameters of the color-changing agent.

[0037] Please refer to Figure 2 as shown in the figure, which is a schematic diagram of the method for detecting the color-changing agent for asphalt pavement in an embodiment of the present invention, including

[0038] Step S1: Place the asphalt pavement in the groove according to the construction requirements, and spray the color-changing agent to be detected on the asphalt pavement.

[0039] Step S2: After the first preset time, start the first detection group and the second detection group to perform wear detection on the color-changing agent of the asphalt pavement to be detected. After the second preset time, start the third detection group to perform wear detection on the color-changing agent of the asphalt pavement to be detected. After the preset detection time, the image processing module obtains the wear images at each detection site, and the central control unit determines the wear resistance coefficient Y of the color-changing agent according to the wear degree and wear amount obtained from the wear images at each detection site.

[0040] Step S3: Start the rain simulation system to perform anti-slip detection on the asphalt pavement applied with the color-changing agent. The central control unit obtains the quality parameter A of the color-changing agent according to the wear resistance coefficient and the anti-slip coefficient H, and sets A = Y / Y0 + H / H0, where Y0 is the target wear resistance coefficient of the color-changing agent to be detected, and H0 is the target anti-slip coefficient of the color-changing agent to be detected.

[0041] Specifically, the present invention comprehensively obtains the quality of the color-changing agent by obtaining the wear degree and wear amount of the target asphalt pavement applied with the color-changing agent at different rotation speeds, different loads, and different service times, and combining its anti-slip coefficient. Among them, the central control unit calculates the wear degree of the color-changing agent at each detection site according to the wear depth, wear area, and color change amount obtained from the wear images of the color-changing agent on the asphalt pavement to be detected at each detection site. The detection method of the color-changing agent in the present invention is simple, efficient, and realizes the simulation detection of the actual application of the color-changing agent to obtain more accurate and real detection results.

[0042] Specifically, the embodiments of the present invention do not limit the anti-slip detection method, as long as it can meet the requirement of detecting the anti-slip performance of the asphalt pavement applied with the color-changing agent. The embodiments of the present invention provide a preferred detection method, which uses a pendulum tester to detect the anti-slip performance of non-detection sites, and takes its pendulum value as the anti-slip coefficient. More specifically, the embodiments of the present invention do not limit the evaluation method of the quality parameters of the color-changing agent. The embodiments of the present invention provide a preferred embodiment, in which an error value is set. If the quality parameters of the color-changing agent obtained by the central control unit are within the error range of the standard value of the quality parameters of the color-changing agent, it is determined that the color-changing agent meets the standard. If the quality parameters of the color-changing agent obtained by the central control unit are outside the error range of the standard value of the quality parameters of the color-changing agent, it is determined that the color-changing agent does not meet the standard and is unqualified.

[0043] Wherein, the central control unit determines the wear degree y of each detection site according to the wear depth, area of each detection site and the color change amount of the color-changing agent, and sets y = d×s×cj, where d is the wear depth of each detection site, s is the wear area of each detection site, and cj is the color change adjustment coefficient of the color-changing agent.

[0044] When the color change amount of the color-changing agent at each detection site is greater than or equal to the preset color change amount of the color-changing agent, the central control unit selects the first preset color-changing agent c1 as the color change adjustment coefficient of the color-changing agent;

[0045] When the color change amount of the color-changing agent at each detection site is less than the preset color change amount of the color-changing agent, the central control unit selects the second preset color-changing agent c2 as the color change adjustment coefficient of the color-changing agent;

[0046] Wherein, j = 1, 2.

[0047] Specifically, the present invention comprehensively analyzes the wear degree of each detection site through the wear depth, wear area, and the change in the color of the color-changing agent caused by wear. At the same time, the present invention divides the color change amount of the color-changing agent into two standards, and sets two color change adjustment coefficients of the color-changing agent according to the divided standards, so as to evaluate the color change index of the color-changing agent in different detection environments. The central control unit respectively compares the change in the color of the color-changing agent during the wear process of the detection site with the preset change amount, selects the best color change adjustment coefficient of the color-changing agent, and then accurately obtains the wear degree of each detection site to grade the change in the wear degree of the pavement applied with the color-changing agent caused by wear in different detection environments.

[0048] Among them, in the step S2, the first motor is started to provide a first load force for the first detection wheel and the second detection wheel. The first detection wheel rotates on the asphalt pavement applied with the color-changing agent at a first speed, and the second detection wheel rotates at a second speed. At the same time, the second motor is started to provide a second load force for the third detection wheel and the fourth detection wheel. The third detection wheel rotates on the asphalt pavement applied with the color-changing agent at the first speed, and the fourth detection wheel rotates at the second speed. After a preset detection time, the central control unit obtains the wear degree y1 of the asphalt pavement at the first detection site through the image processing module, and obtains the wear amount M1 at the first detection site through the wear amount collection module. The central control unit obtains the wear degree y2 of the asphalt pavement at the second detection site through the image processing module, and obtains the wear amount M2 at the second detection site through the wear amount collection module.

[0049] Specifically, in the step S2, after a second preset time, the third motor is started to provide a first load force for the fifth detection wheel and the sixth detection wheel. The fifth detection wheel rotates on the asphalt pavement applied with the color-changing agent at the first speed, and the sixth detection wheel rotates at the second speed. The central control unit obtains the wear degree y5 and the wear amount M5 of the color-changing agent on the asphalt pavement at the fifth detection site, and the wear degree y6 and the wear amount M6 of the color-changing agent on the asphalt pavement at the sixth detection site.

[0050] Among them, the central control unit determines the reference value of the wear degree of the color-changing agent according to the wear amounts at the first detection site and the second detection site. When the difference between the wear amount M2 at the second detection site and the wear amount M1 at the first detection site is less than or equal to the first preset wear amount difference △m1, the central control unit obtains the comparison between the wear degree at the second detection site and the wear degree at the first detection site. When the difference between the wear degree at the second detection site and the wear degree at the first detection site is less than or equal to the preset wear degree difference, the central control unit takes the wear degree y1 at the first detection site as the reference value of the wear degree of the color-changing agent. When the difference between the wear degree at the second detection site and the wear degree at the first detection site is greater than the preset wear degree difference, the central control unit takes the wear degree y2 at the second detection site as the reference value of the wear degree of the color-changing agent.

[0051] Specifically, the present invention sets the same load force and different speeds to simulate the wear of the asphalt pavement applied with the color-changing agent, and uses the difference in wear amount as the evaluation standard to determine the reference value of the wear degree of the color-changing agent, and uses it as the standard value for evaluating the wear degree of the color-changing agent. Among them, when the difference between the wear amount of the road surface by the detection wheel with a higher rotation speed under the same load force and the wear amount of the road surface by the detection wheel with a lower rotation speed is lower, it indicates that the friction speed has a smaller impact on the wear of the color-changing agent. The central control unit sets the wear degree at the first detection site as the reference value of the wear degree. When the difference between the wear amount of the road surface by the detection wheel with a higher rotation speed under the same load force and the wear amount of the road surface by the detection wheel with a lower rotation speed is higher, it indicates that the friction speed has a greater impact on the wear of the modifier. The central control unit selects the wear degree at the second detection site as the reference value of the wear degree.

[0052] Among them, the central control unit compares the wear degree of the i-th detection site with that of the (i + 2)-th detection site. When the difference between the wear degree y(i + 2) of the (i + 2)-th detection site and the reference value yi of the color-changing agent wear degree is less than or equal to the first preset wear degree difference △y1, the central control unit compares the wear amount of the i-th detection site with that of the (i + 2)-th detection site. When the difference between the wear amount M(i + 2) of the (i + 2)-th detection site and the wear amount Mi of the i-th detection site is less than or equal to the second preset wear amount difference △m2, the central control unit obtains the wear resistance coefficient Y1 and sets Y1 = 1 / yi. When the difference between the wear amount M(i + 2) of the (i + 2)-th detection site and the wear amount Mi of the first detection site is greater than the second preset wear amount difference △m2, the central control unit selects the first wear amount adjustment coefficient k1 as the wear resistance adjustment coefficient and obtains the wear resistance coefficient Y2 = 1 / (yi×k1), where k1 = (M(i + 2) - Mi) / △m2.

[0053] The central control unit compares the wear degree of the i-th detection site with that of the (i + 2)-th detection site. When the difference between the wear degree y(i + 2) of the (i + 2)-th detection site and the reference value yi of the color-changing agent wear degree is greater than the first preset wear degree difference △y1, the central control unit selects the second wear amount adjustment coefficient k2 as the wear degree adjustment coefficient and obtains the wear resistance coefficient as Y3, and sets Y3 = 1 / (yi×k2), where k2 = (y(i + 2) - yi) / △y1×(F2 / F1).

[0054] Specifically, after determining the reference value of the wear degree of the color-changing agent in the present invention, detection sites with the same rate as the reference value of the wear degree of the color-changing agent but different loads are obtained as the detection sites to be compared. The wear degree of the detection sites to be compared is obtained and compared with the reference value of the wear degree of the color-changing agent to determine whether the load force has a greater impact on the color-changing agent. When the difference between the wear degree of the detection site to be compared and the reference value of the wear degree of the color-changing agent is small, it indicates that the load size has a small impact on the wear degree of the modifier. The central control unit determines the wear resistance coefficient of the modifier according to the wear amounts of the two. Among them, if the difference between the wear amount of the detection site to be compared and the wear amount of the current detection site is small, it indicates that the load force has a small impact on the wear degree of the color-changing agent. The central control unit uses the reciprocal of the wear degree of the modifier as the wear resistance coefficient. When the difference between the wear amount of the detection site to be compared and the wear amount of the current detection site is large, the central control unit uses the ratio of the difference between the two wear amounts to the preset wear amount difference as the adjustment coefficient to adjust the reference value of the wear degree, and uses the reciprocal of the adjusted wear degree of the color-changing agent as the wear resistance coefficient. When the difference between the wear degree of the comparison detection site obtained by the central control unit and the wear degree of the current detection site is large, it indicates that the load force has a greater impact on the wear of the color-changing agent. The central control unit uses the product of the ratio of the wear degree difference to the preset difference and the ratio of the second load force to the first load force as the wear degree adjustment coefficient to obtain the wear resistance coefficient of the color-changing agent.

[0055] Among them, when the difference between the wear degree yi of the i-th detection site obtained by the central control unit and the wear degree y(i + 4) of the (i + 4)-th detection site is less than or equal to the second preset wear degree difference △y2, and the difference between the wear amount Mi of the i-th detection site and the wear amount M(i + 4) of the (i + 4)-th detection site is less than or equal to the second preset wear amount difference △m2, the central control unit determines not to adjust the wear resistance coefficient. When the difference between the wear amount Mi of the i-th detection site and the wear amount M(i + 4) of the (i + 4)-th detection site is greater than the second preset wear amount difference △m2, the central control unit obtains the wear resistance coefficient Yp1, and sets Yp1 = Yp×(△m2 / (M(i + 4) - Mi)), where p = 1, 2, 3.

[0056] Among them, when the difference between the wear degree yi of the i-th detection site obtained by the central control unit and the wear degree y(i + 4) of the (i + 4)-th detection site is greater than the second preset wear degree difference △y2, the central control unit adjusts the wear resistance coefficient Yp to Yp2, and sets Yp2 = Yp×△y2 / (yi - y(i + 4)).

[0057] Specifically, the present invention uses the wear degrees of the third group of detection sites and the first group of detection sites to evaluate the influence of wear time on the wear resistance coefficient. The central control unit sets the detection site with the same rotation speed as the current detection site in the third group of detection sites as the detection site to be compared. If the difference in wear degree between the current detection site and the detection site to be compared is small, the central control unit determines the wear resistance coefficient according to the wear amounts of the two. Among them, if the difference in wear amount between the current detection site and the detection site to be compared is small, the central control unit does not adjust the wear resistance coefficient. If the difference in wear amount between the current detection site and the detection site to be compared is large, the central control unit reduces the wear resistance coefficient according to the difference in wear amount. And if the difference in wear degree between the current detection site and the detection site to be compared is large, it indicates that the service time has a greater impact on the wear degree of the color-changing agent. The central control unit reduces the wear resistance coefficient based on the difference in wear degree between the detection site to be compared and the current detection site to obtain an accurate wear resistance coefficient.

[0058] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

[0059] The above are only the preferred embodiments of the present invention and are not used to limit the present invention; for those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A detection method for color-changing agents used in asphalt pavements, characterized in that, Including: Step S1: Place the asphalt pavement into the groove according to the construction requirements, and spray the color-changing agent to be detected on the asphalt pavement. Step S2: After the first preset time, start the first detection group and the second detection group to conduct wear detection on the color-changing agent of the asphalt pavement to be detected. After the second preset time, start the third detection group to conduct wear detection on the color-changing agent of the asphalt pavement to be detected. After the preset detection time, the image processing module acquires the wear images of each detection site, and the central control unit determines the wear resistance coefficient Y of the color-changing agent according to the wear degree and wear amount obtained from the wear images of each detection site. In the step S2, start the first motor to provide the first load force for the first detection wheel and the second detection wheel. The first detection wheel rotates on the asphalt pavement with the color-changing agent applied at the first rate, and the second detection wheel rotates at the second rate. In the step S2, after the second preset time, start the third motor to provide the first load force for the fifth detection wheel and the sixth detection wheel. The fifth detection wheel rotates on the asphalt pavement with the color-changing agent applied at the first rate, and the sixth detection wheel rotates at the second rate. The first detection group is used to obtain the reference value of the wear degree of the color-changing agent. The second detection group is used to obtain the influence of different load forces on the reference value of the wear degree of the color-changing agent to obtain the friction resistance coefficient of the color-changing agent. The third detection group is used to correct the friction resistance coefficient according to the usage time of the color-changing agent. Step S3: Start the rainwater simulation system to conduct anti-slip detection on the asphalt pavement with the color-changing agent applied. The central control unit obtains the quality parameter A of the color-changing agent according to the wear resistance coefficient and the anti-slip coefficient H, and sets A = Y / Y0 + H / H0, where Y0 is the target wear resistance coefficient of the color-changing agent to be detected, and H0 is the target anti-slip coefficient of the color-changing agent to be detected.

2. The color-changing agent detection method for asphalt pavement according to claim 1, characterized in that, The central control unit determines the wear degree y of each detection site according to the wear depth, area and color change amount of the color-changing agent at each detection site, and sets y = d×s×cj, where d is the wear depth of each detection site, s is the wear area of each detection site, and cj is the color change adjustment coefficient of the color-changing agent. When the color change amount of the color-changing agent at each detection site is greater than or equal to the preset color change amount of the color-changing agent, the central control unit selects the first preset color-changing agent c1 as the color change adjustment coefficient of the color-changing agent. When the color change amount of the color-changing agent at each detection site is less than the preset color change amount of the color-changing agent, the central control unit selects the second preset color-changing agent c2 as the color change adjustment coefficient of the color-changing agent. Where j = 1, 2.

3. The color-changing agent detection method for asphalt pavement according to claim 2, characterized in that, 4. The color-changing agent detection method for asphalt pavement according to claim 3, wherein, At the same time, start the second motor to provide the second load force for the third detection wheel and the fourth detection wheel. The third detection wheel rotates on the asphalt pavement with the color-changing agent applied at the first rate, and the fourth detection wheel rotates at the second rate. After the preset detection time, the central control unit acquires the wear degree y1 of the asphalt pavement at the first detection site through the image processing module, and acquires the wear amount M1 of the first detection site through the wear amount collection module. The central control unit acquires the wear degree y2 of the asphalt pavement at the second detection site through the image processing module, and acquires the wear amount M2 of the second detection site through the wear amount collection module. The central control unit acquires the wear degree y5 and wear amount M5 of the color-changing agent on the asphalt pavement at the fifth detection site, and the wear degree y6 and wear amount M6 of the color-changing agent on the asphalt pavement at the sixth detection site.

5. The color-changing agent detection method for asphalt pavement according to claim 4, wherein, The central control unit determines a reference value for the wear degree of the color-changing agent based on the wear amounts of the first detection site and the second detection site. When the difference between the wear amount M2 of the second detection site and the wear amount M1 of the first detection site is less than or equal to the first preset wear amount difference △m1, the central control unit obtains the comparison between the wear degree of the second detection site and the wear degree of the first detection site. When the difference between the wear degree of the second detection site and the wear degree of the first detection site is less than or equal to the preset wear degree difference, the central control unit takes the wear degree y1 of the first detection site as the reference value for the wear degree of the color-changing agent. When the difference between the wear degree of the second detection site and the wear degree of the first detection site is greater than the preset wear degree difference, the central control unit takes the wear degree y2 of the second detection site as the reference value for the wear degree of the color-changing agent.

6. The color-changing agent detection method for asphalt pavement according to claim 5, wherein The central control unit compares the wear degrees of the i-th detection site and the (i + 2)-th detection site. When the difference between the wear degree y(i + 2) of the (i + 2)-th detection site and the reference value yi of the wear degree of the color-changing agent is less than or equal to the first preset wear degree difference △y1, the central control unit compares the wear amounts of the i-th detection site and the (i + 2)-th detection site. When the difference between the wear amount M(i + 2) of the (i + 2)-th detection site and the wear amount Mi of the i-th detection site is less than or equal to the second preset wear amount difference △m2, the central control unit obtains the wear resistance coefficient Y1 and sets Y1 = 1 / yi. When the difference between the wear amount M(i + 2) of the (i + 2)-th detection site and the wear amount Mi of the first detection site is greater than the second preset wear amount difference △m2, the central control unit selects the first wear amount adjustment coefficient k1 as the wear resistance adjustment coefficient and obtains the wear resistance coefficient Y2 = 1 / (yi × k1), where k1 = (M(i + 2) - Mi) / △m2.

7. The color-changing agent detection method for asphalt pavement according to claim 5, characterized in that The central control unit compares the wear degrees of the i-th detection site and the (i + 2)-th detection site. When the difference between the wear degree y(i + 2) of the (i + 2)-th detection site and the reference value yi of the wear degree of the color-changing agent is greater than the first preset wear degree difference △y1, the central control unit selects the second wear amount adjustment coefficient k2 as the wear degree adjustment coefficient and obtains the wear resistance coefficient as Y3, and sets Y3 = 1 / (yi × k2), where k2 = (y(i + 2) - yi) / △y1 × (F2 / F1).

8. The color-changing agent detection method for asphalt pavement according to claim 7, characterized in that, When the difference between the wear degree yi of the i-th detection site obtained by the central control unit and the wear degree y(i + 4) of the (i + 4)-th detection site is less than or equal to the second preset wear degree difference △y2, and the difference between the wear amount Mi of the i-th detection site and the wear amount M(i + 4) of the (i + 4)-th detection site is less than or equal to the second preset wear amount difference △m2, the central control unit determines not to adjust the wear resistance coefficient. When the difference between the wear amount Mi of the i-th detection site and the wear amount M(i + 4) of the (i + 4)-th detection site is greater than the second preset wear amount difference △m2, the central control unit obtains the wear resistance coefficient Yp1 and sets Yp1 = Yp × (△m2 / (M(i + 4) - Mi) / ), where p = 1, 2, 3.

9. The color-changing agent detection method for asphalt pavement according to claim 8, characterized in that, When the difference between the wear degree yi of the ith detection site and the wear degree y(i + 4) of the (i + 4)th detection site obtained by the central control unit is greater than the second preset wear degree difference △y2, the central control unit adjusts the wear resistance coefficient Yp to Yp2, and sets Yp2 = Yp×△y2 / (yi - y(i + 4)).

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