Bridge waterproof material water-based epoxy asphalt proportioning optimization test auxiliary device and method

Abstract

The application discloses a kind of bridge deck waterproof material water-based epoxy asphalt proportioning optimization test auxiliary device and method, device includes: machine body, mixed stirring unit, liquid material proportioning unit, fiber proportioning unit, asphalt concrete stirring unit, located the upper surface of sample preparation flow channel and connect mixed stirring unit's new material spraying unit, located the upper surface of sample preparation flow channel and connect asphalt concrete stirring unit's asphalt concrete pouring unit, be equipped with the work station switching unit of the upper surface of the bottom support frame, be installed on the work station switching unit above section simulation sample, be fixed on the controller of the side of the bottom support frame;By the quantitative proportioning of optimizing water-based epoxy asphalt, efficient mixing and section simulation sample preparation multi-test operation process integration, greatly improve the water emulsified asphalt optimization proportioning test efficiency, proportioning accuracy, in turn to the optimization water-based epoxy asphalt waterproof performance research played a promoting role.

Description

Technical Field

[0001] This invention belongs to the field of asphalt optimization testing technology, and more specifically, relates to an auxiliary device and method for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing materials. Background Technology

[0002] Bridge deck pavement is a crucial component of bridge construction. Bridge maintenance has revealed a range of causes leading to corrosion in steel bridges and concrete bridges, including concrete loosening and reduced structural strength. Besides construction quality, a significant contributing factor is moisture seeping through the pavement layer into the underlying bridge structure. Under repeated vehicle loads, this moisture corrodes the main bridge structure, ultimately causing structural damage. Therefore, the waterproofing and bonding properties of the waterproofing adhesive layer are paramount. If the bridge deck pavement lacks a waterproof layer or has inadequate waterproofing, water or antifreeze solutions seeping in can damage the pavement panels and even corrode the bridge structure, threatening the safety of the main beams.

[0003] To address the aforementioned technical challenges, water-based emulsion asphalt waterproofing adhesives are applied at room temperature, do not release harmful substances or excessive heat into the environment, are environmentally friendly and energy-saving, and form a continuous film after curing that provides excellent waterproofing and bonding. This has made them a commonly used material for bridge deck waterproofing adhesive layers in recent years. Water-based epoxy emulsion asphalt is formulated using water-based epoxy resin as a modifier for emulsion asphalt. It exhibits good fluidity at room temperature, retaining the low pollution and easy-to-apply characteristics of emulsion asphalt. Furthermore, after demulsification and curing, the epoxy resin cross-links with the asphalt to form a network structure, overcoming the shortcomings of emulsion asphalt, such as low bonding strength, high temperature sensitivity, and poor waterproofing effect, thus meeting the requirements of conventional bridge deck waterproofing adhesive layers.

[0004] However, in water-rich areas with abundant rainfall, higher technical requirements are placed on bridge deck waterproofing solutions in terms of waterproofing grade and service life. Therefore, optimizing the mix proportions of water-emulsion asphalt materials to further improve their waterproofing performance has become a hot topic. Proportioning tests are typically a large amount of repetitive work; therefore, proposing an auxiliary device for proportioning optimization tests is of great significance in order to improve the efficiency and accuracy of water-emulsion asphalt mix proportioning tests. Summary of the Invention

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides an auxiliary device and method for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing. By integrating multiple experimental operations, including optimizing the quantitative proportion of water-based epoxy asphalt, efficient mixing, and preparation of simulated road section samples, the efficiency and accuracy of water-emulsion asphalt mix proportion optimization tests are significantly improved, thereby promoting research on optimizing the waterproofing performance of water-based epoxy asphalt.

[0006] To achieve the above objectives, according to a first aspect of the present invention, an auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing is characterized by comprising:

[0007] The machine body consists of a bottom support frame, an upper support frame, and a sample preparation flow channel located between the two; a mixing and stirring unit located in the upper support frame; a liquid material proportioning unit that quantitatively injects liquid optimization material into the mixing and stirring unit; a fiber material proportioning unit that quantitatively injects fibrous optimization material into the mixing and stirring unit; an asphalt concrete stirring unit located in the upper support frame; a new material spraying unit located on the upper surface of the sample preparation flow channel and connected to the mixing and stirring unit; an asphalt concrete pouring unit located on the upper surface of the sample preparation flow channel and connected to the asphalt concrete stirring unit; a workstation switching unit located on the upper surface of the bottom support frame; a road section simulation sample installed on the workstation switching unit; and a controller fixed to the side of the bottom support frame.

[0008] The new material spraying unit includes a spray driver connected to the mixing unit via a pipeline, a spray head connected to the output end of the spray driver via a pipeline, and a two-dimensional coordinate adjustment assembly fixed to the upper surface of the sample preparation flow channel. The spray head is fixed to the output end of the two-dimensional coordinate adjustment assembly. The spray head is oriented vertically downwards.

[0009] The asphalt concrete pouring unit includes a pouring driver connected to the asphalt concrete mixing unit via a pipeline, and a pouring head connected to the output end of the pouring driver via a pipeline; the pouring head is oriented vertically downwards.

[0010] The simulated road section samples, from bottom to top, are C-type concrete, improved waterborne epoxy asphalt, and asphalt concrete.

[0011] Preferably, the mixing and stirring unit includes:

[0012] The mixing cylinder, the base material filling port located above the mixing cylinder, the mixing assembly located inside the mixing cylinder, and the stirring spiral lifting rod that drives the mixing assembly; the mixing assembly is a stirring spiral lifting rod vertically located inside the mixing cylinder; the stirring spiral lifting rod is coaxially and fixedly connected to the mixing drive motor.

[0013] Preferably, the mixing assembly further includes a flow-guiding spiral flange disposed on the inner wall of the mixing cylinder and rotating in the opposite direction to the stirring spiral rod.

[0014] Preferably, the mixing assembly further includes: a fiber clump dispersion assembly fixed to the inner wall of the mixing cylinder; the fiber clump dispersion assembly includes: a positioning ring fixedly connected to the inner wall of the mixing cylinder, and dispersion baffles fixed in an annular equidistant array to the inner side of the positioning ring.

[0015] Preferably, the liquid mixing unit includes:

[0016] The liquid storage cylinder, the metering pump connected to the liquid storage cylinder via a conduit, and the liquid pump outlet connected to the metering pump via a conduit, the liquid pump outlet being open into the inner cavity of the mixing cylinder.

[0017] Preferably, the fiber proportioning unit includes:

[0018] The fiber storage cylinder, the fiber metering output device connected to the bottom of the fiber storage cylinder via a conduit, and the fiber output port connected to the output end of the fiber metering output device via a conduit; the fiber output port extends through the inner cavity of the mixing cylinder.

[0019] Preferably, the fiber metering output device includes:

[0020] The fiber material picking component is located at the bottom of the fiber material storage cylinder, the weighing partition component is located below the fiber material picking component, the fiber material picking and dispensing cavity is located between the weighing partition component and the fiber material picking component, the blower is located below the weighing partition component, and the output end of the blower is connected to the fiber material output port.

[0021] The fiber picking assembly includes: a dial wheel located at the bottom of the fiber storage cylinder and a dial wheel drive motor for driving the dial wheel to rotate.

[0022] Preferably, the weighing partition assembly includes:

[0023] The system includes a drive rack, a plate-shaped weighing sensor located above the drive rack, a drive wheel that meshes with the drive rack, and a motor that drives the drive wheel to rotate. The plate-shaped weighing sensor slides horizontally on the bottom surface of the fiber loading and unloading cavity.

[0024] Preferably, the workstation switching unit includes:

[0025] A switching drive motor is fixed to the upper surface of the bottom support frame; a transmission screw is fixedly connected to the switching drive motor along the sample preparation flow channel and coaxially; a transmission nut block is engaged with the transmission screw; and a sample loading platform is placed on the transmission nut block; the road section simulation sample is placed on the sample loading platform.

[0026] According to a second aspect of the present invention, a method for using an auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing includes the following steps:

[0027] S100: Add water-based epoxy asphalt raw materials to the mixing drum, add liquid modifier to the liquid storage drum, add fiber modifier to the fiber storage drum, add asphalt concrete to the asphalt concrete mixing unit, and place the simulated road section paved with C concrete onto the sample loading platform.

[0028] S200: The system inputs the test mix proportion controller, which controls the quantitative delivery pump to add the liquid modifier material from the liquid storage cylinder to the mixing cylinder in a quantitative manner. At the same time, the system controls the dial wheel drive motor to rotate the dial wheel, thereby quantitatively dispensing the fiber modifier material from the fiber storage cylinder into the fiber dispensing chamber below. Subsequently, the weighing partition assembly weighs and dispenses the material. When the dispensing amount reaches the preset value, the system controls the dial wheel drive motor to stop and controls the drive wheel to rotate, causing the drive rack and the plate-shaped weighing sensor above it to retract. This opens the bottom of the fiber dispensing chamber, allowing the fiber modifier material inside to leak down to the blower input end. Under the action of the blower, it is dispersed and blown into the mixing cylinder, thus completing the preparation of the water-based epoxy asphalt to be tested.

[0029] S300: The system controls the rotation of the stirring drive motor, which in turn drives the stirring auger to rotate, thereby causing the mixture inside the barrel to rotate and rise. At the same time, the guide spiral flange on the inner wall of the barrel guides the mixture downward in the opposite direction, thereby realizing the up-and-down circulation inside the barrel. The fiber clumps inside collide with the dispersing baffle in the fiber clump dispersing component. Under continuous circulation, the fiber agglomeration in the mixture is eliminated. At the same time, the asphalt concrete stirring unit is started to keep the internal asphalt concrete in a fluid state.

[0030] S400: The start-up station switching unit starts, controls the switching drive motor to rotate, which in turn drives the transmission screw to rotate, thereby driving the transmission nut block to move horizontally, moving the sample loading platform to directly below the spray head. Then, the spray driver starts, spraying the test water-based epoxy asphalt material in the mixing cylinder onto the upper surface of C concrete in the road section simulation sample; at the same time, the spray head is moved by the two-dimensional coordinate adjustment component to achieve uniform spraying.

[0031] S500: Continue to control the rotation of the switching drive motor to move the sample loading platform to below the pouring head, and then start the pouring driver to pour the asphalt concrete in the asphalt concrete mixing unit onto the improved waterborne epoxy asphalt in the road section simulation sample.

[0032] S600: Then control the switching drive motor to rotate, move the road section simulation sample out, manually remove it, and complete the road section sample preparation.

[0033] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0034] 1. The present invention provides an auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing. By integrating multiple experimental operations such as optimizing the quantitative proportion of water-based epoxy asphalt, efficient mixing, and preparation of road section simulation samples, the device greatly improves the efficiency and accuracy of water-emulsion asphalt mix proportion optimization tests, thereby promoting the research on optimizing the waterproof performance of water-based epoxy asphalt.

[0035] 2. The auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing, as per the present invention, uses a quantitative addition method for fiber optimization materials. It employs a weighing method to determine the amount added and a blower method to disperse the fiber materials into the mixing drum, thus avoiding fiber agglomeration to a certain extent. Simultaneously, a counter-rotating stirring screw and a guiding spiral flange, combined with a fiber agglomeration component, further enhance the dispersion effect of the fiber materials, achieving thorough mixing. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of an auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing, according to an embodiment of the present invention.

[0037] Figure 2 This is a schematic diagram of the mixing and stirring unit structure of an auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing, according to an embodiment of the present invention.

[0038] Figure 3 This is a schematic diagram of the fiber proportioning unit structure of an auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing, according to an embodiment of the present invention.

[0039] Figure 4 This is a schematic diagram of the fiber cluster dispersion component of an auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing, according to an embodiment of the present invention.

[0040] Figure 5 This is a schematic diagram of the weighing partition assembly of an auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing, according to an embodiment of the present invention.

[0041] Figure 6 This is a diagram showing the first working state of an auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing, according to an embodiment of the present invention.

[0042] Figure 7 This is a diagram showing the second working state of an auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing, according to an embodiment of the present invention.

[0043] Figure 8 This is a diagram showing the third working state of an auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing, according to an embodiment of the present invention.

[0044] Figure 9 This is a cross-sectional structural diagram of a road section simulated by a test auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing, according to an embodiment of the present invention.

[0045] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-body, 101-bottom support frame, 102-upper support frame, 103-sample preparation flow channel, 2-mixing and stirring unit, 210-stirring cylinder, 211-base material filling port, 220-stirring assembly, 221-stirring spiral lifting rod, 222-guide spiral flange, 223-fiber agglomeration assembly, 2231-positioning ring, 2232-agglomeration baffle, 230-stirring drive motor, 3-liquid proportioning unit, 310-liquid storage cylinder, 320-quantitative dispensing pump, 330-liquid pump outlet, 4-fiber proportioning unit, 410-fiber storage cylinder, 420-fiber picking assembly, 421-dial wheel, 422-dial wheel drive Motor, 460-Fiber material handling chamber, 430-Weighing partition assembly, 431-Drive wheel, 432-Drive rack, 433-Weighing sensor, 440-Blower, 450-Fiber material output port, 5-Asphalt concrete mixing unit, 6-Station switching unit, 601-Switching drive motor, 602-Transmission screw, 603-Transmission nut block, 604-Sample loading platform, 7-New material spraying unit, 701-Spraying driver, 702-Spraying head, 710-Two-dimensional coordinate adjustment assembly, 8-Asphalt concrete pouring unit, 801-Pouring driver, 802-Pouring head, 9-Road section simulation sample, 901-C50 concrete, 902-Improved water-based epoxy asphalt, 903-Asphalt concrete, 10-Controller. Detailed Implementation

[0046] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0050] like Figures 1-9 As shown in the embodiment of the present invention, the auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing includes:

[0051] The machine body 1 consists of a bottom support frame 101, an upper support frame 102, and a sample preparation flow channel 103 located between the two; a mixing and stirring unit 2 located in the upper support frame 102; a liquid material proportioning unit 3 that quantitatively injects liquid optimization material into the mixing and stirring unit 2; a fiber material proportioning unit 4 that quantitatively injects fibrous optimization material into the mixing and stirring unit 2; an asphalt concrete stirring unit 5 located in the upper support frame 102; a new material spraying unit 7 located on the upper surface of the sample preparation flow channel 103 and connected to the mixing and stirring unit 2; an asphalt concrete pouring unit 8 located on the upper surface of the sample preparation flow channel 103 and connected to the asphalt concrete stirring unit 5; a workstation switching unit 6 located on the upper surface of the bottom support frame 101; a road section simulation sample 9 installed on the workstation switching unit 6; and a controller 10 fixed to the side of the bottom support frame 101.

[0052] The new material spraying unit 7 includes a spray driver 701 connected to the mixing and stirring unit 2 via a pipeline, a spray head 702 connected to the output end of the spray driver 701 via a pipeline, and a two-dimensional coordinate adjustment component 710 fixed to the upper surface of the sample preparation flow channel 103. The spray head 702 is fixed to the output end of the two-dimensional coordinate adjustment component 710. The spray head 702 is oriented vertically downwards.

[0053] The asphalt concrete pouring unit 8 includes a pouring driver 801 connected to the asphalt concrete mixing unit 5 via a pipeline, and a pouring head 802 connected to the output end of the pouring driver 801 via a pipeline; the pouring head 802 is oriented vertically downward.

[0054] The simulated road section 9 consists of, from bottom to top, C50 concrete 901, improved waterborne epoxy asphalt 902, and asphalt concrete 903.

[0055] like Figure 1 and Figure 2 As shown, in this embodiment of the invention, the mixing and stirring unit 2 includes:

[0056] The mixing cylinder 210, the base material filling port 211 located above the mixing cylinder 210, the mixing assembly 220 located inside the mixing cylinder 210, and the stirring spiral lifting rod 221 that drives the mixing assembly 220; the mixing assembly 220 is a stirring spiral lifting rod 221 vertically located inside the mixing cylinder 210; the stirring spiral lifting rod 221 is coaxially and fixedly connected to the mixing drive motor 230.

[0057] like Figure 2 As shown, in this embodiment of the invention, the mixing component 220 further includes a flow-guiding spiral flange 222 disposed on the inner wall of the mixing cylinder 210 and rotating in the opposite direction to the stirring spiral lifting rod 221.

[0058] like Figure 2 and Figure 4 As shown, in this embodiment of the invention, the mixing component 220 further includes: a fiber clump dispersion component 223 fixed to the inner wall of the mixing cylinder 210; the fiber clump dispersion component 223 includes: a positioning ring 2231 fixedly connected to the inner wall of the mixing cylinder 210, and dispersion baffles 2232 fixed in an annular equidistant array to the inner side of the positioning ring 2231.

[0059] like Figure 1 and Figure 2 As shown, in this embodiment of the invention, the liquid mixing unit 3 includes:

[0060] The liquid storage cylinder 310, the metering pump 320 connected to the liquid storage cylinder 310 via a conduit, and the liquid pump outlet 330 connected to the metering pump 320 via a conduit, wherein the liquid pump outlet 330 extends through the inner cavity of the mixing cylinder 210.

[0061] like Figure 1 and Figure 3 As shown, in this embodiment of the invention, the fiber proportioning unit 4 includes:

[0062] The fiber storage cylinder 410, the fiber metering output device connected to the bottom of the fiber storage cylinder 410 via a conduit, and the fiber output port 450 connected to the output end of the fiber metering output device via a conduit; the fiber output port 450 extends through the inner cavity of the mixing cylinder 210.

[0063] like Figure 3 As shown, in this embodiment of the invention, the fiber metering output device includes:

[0064] The fiber material picking assembly 420 is located at the bottom of the fiber material storage cylinder 410; the weighing partition assembly 430 is located below the fiber material picking assembly 420; the fiber material picking and dispensing cavity 460 is located between the weighing partition assembly 430 and the fiber material picking assembly 420; the blower 440 is located below the weighing partition assembly 430; and the output end of the blower 440 is connected to the fiber material output port 450.

[0065] The fiber picking assembly 420 includes: a dial wheel 421 located at the bottom of the fiber storage cylinder 410, and a dial wheel drive motor 422 that drives the dial wheel 421 to rotate.

[0066] like Figure 3 and Figure 5 As shown, in this embodiment of the invention, the weighing partition assembly 430 includes:

[0067] The drive rack 432, the plate-shaped weighing sensor 433 located above the drive rack 432, the drive wheel 431 that meshes with the drive rack 432, and the motor that drives the drive wheel 431 to rotate; the plate-shaped weighing sensor 433 opens and closes horizontally on the bottom surface of the fiber material handling chamber 460.

[0068] like Figure 1 As shown, in this embodiment of the invention, the workstation switching unit 6 includes:

[0069] A switching drive motor 601 is fixed to the upper surface of the bottom support frame 101; a transmission screw 602 is fixedly connected to the switching drive motor 601 along the direction of the sample preparation flow channel 103 and coaxially; a transmission nut block 603 is engaged with the transmission screw 602; and a sample loading platform 604 is disposed on the transmission nut block 603; the road section simulation sample 9 is placed on the sample loading platform 604.

[0070] In this embodiment of the invention, the method of using the auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing includes the following steps:

[0071] S100: Add water-based epoxy asphalt raw material to mixing drum 210, add liquid modifier to liquid material storage drum 310, add fiber modifier to fiber material storage drum 410, add asphalt concrete to asphalt concrete mixing unit 5, and place the simulated road section paved with C50 concrete onto the sample loading platform 604.

[0072] S200: The test mix input value controller 10 controls the quantitative delivery pump 320 to quantitatively add the liquid modified material in the liquid storage cylinder to the mixing cylinder 210. At the same time, the system controls the dial drive motor 422 to drive the dial wheel 421 to rotate, thereby quantitatively dispensing the fiber modified material in the fiber storage cylinder 410 into the fiber dispensing chamber 460 below. Then, the weighing partition assembly 430 weighs and dispenses the material. When the dispensing amount reaches the preset value, the system controls the dial drive motor 422 to stop rotating and controls the drive wheel 431 to rotate, driving the drive rack 432 and the plate-shaped weighing sensor 433 above it to retract. Thus, the bottom of the fiber dispensing chamber 460 is opened, and the fiber modified material inside leaks down to the input end of the blower 440. Under the action of the blower 440, it is dispersed and blown into the mixing cylinder 210; thus completing the preparation of the waterborne epoxy asphalt to be tested.

[0073] S300: The system controls the stirring drive motor 230 to rotate, thereby driving the stirring spiral lifting rod 221 to rotate, which in turn drives the mixture in the barrel to rotate and rise. At the same time, the guide spiral flange 222 on the inner wall of the barrel guides the mixture downward in the opposite direction, thereby realizing the up and down circulation in the barrel. The fiber clumps inside will collide with the dispersing baffle 2232 in the fiber clump dispersing component 223. Under continuous circulation, the fiber agglomeration in the mixture is eliminated. At the same time, the asphalt concrete stirring unit 5 is started to keep the internal asphalt concrete in a fluid state.

[0074] S400: The start-up station switching unit 6 starts, controlling the switching drive motor 601 to rotate, which in turn drives the transmission screw 602 to rotate, thereby driving the transmission nut block 603 to move horizontally, moving the sample loading platform to directly below the spray head 702. Then, the spray driver 701 is started, spraying the test water-based epoxy asphalt material in the mixing cylinder 210 onto the upper surface of C50 concrete 901 in the road section simulation sample 9; at the same time, the two-dimensional coordinate adjustment component 710 controls the movement of the spray head 702 to achieve uniform spraying.

[0075] S500: Continue to control the switching drive motor 601 to rotate, move the sample loading platform to below the pouring head 802, and then start the pouring driver 801 to pour the asphalt concrete in the asphalt concrete mixing unit 5 onto the improved waterborne epoxy asphalt in the road section simulation sample 9.

[0076] S600: Then control the switching drive motor 601 to rotate, move the road section simulation sample out, manually remove it, and complete the road section sample preparation.

[0077] In this embodiment of the invention, the fiber-modifying material may be polypropylene fiber.

[0078] In this embodiment of the invention, by integrating multiple experimental operations such as optimizing the quantitative proportion of waterborne epoxy asphalt, efficient mixing, and preparing road section simulation samples, the efficiency and accuracy of water-emulsion asphalt optimization proportion tests are greatly improved, thereby promoting the research on optimizing the waterproof performance of waterborne epoxy asphalt.

[0079] In this embodiment of the invention, the quantitative addition method of the fiber optimization material adopts the weighing method to determine the amount to be added, and the blowing method is used to disperse the fiber material into the mixing cylinder, which avoids the fiber material from clumping to a certain extent. At the same time, the counter-rotating stirring spiral lift rod and the guide spiral flange are used in conjunction with the fiber clumping dispersion component to further achieve the dispersion effect of the fiber material and achieve thorough mixing.

[0080] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. An auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing, characterized in that, include: The machine body (1) consists of a bottom support frame (101), an upper support frame (102) and a sample preparation flow channel (103) located between the two; a mixing and stirring unit (2) located in the upper support frame (102); a liquid material proportioning unit (3) that quantitatively injects liquid optimization material into the mixing and stirring unit (2); a fiber material proportioning unit (4) that quantitatively injects fibrous optimization material into the mixing and stirring unit (2); an asphalt concrete stirring unit (5) located in the upper support frame (102); a new material spraying unit (7) located on the upper surface of the sample preparation flow channel (103) and connected to the mixing and stirring unit (2); an asphalt concrete pouring unit (8) located on the upper surface of the sample preparation flow channel (103) and connected to the asphalt concrete stirring unit (5); a work station switching unit (6) located on the upper surface of the bottom support frame (101); a road section simulation sample (9) installed on the work station switching unit (6); and a controller (10) fixed to the side of the bottom support frame (101). The new material spraying unit (7) includes a spray driver (701) connected to the mixing and stirring unit (2) via a pipeline, a spray head (702) connected to the output end of the spray driver (701) via a pipeline, and a two-dimensional coordinate adjustment component (710) fixed to the upper surface of the sample preparation flow channel (103). The spray head (702) is fixed to the output end of the two-dimensional coordinate adjustment component (710). The spray head (702) is oriented vertically downward. The asphalt concrete pouring unit (8) includes a pouring driver (801) connected to the asphalt concrete mixing unit (5) via a pipeline and a pouring head (802) connected to the output end of the pouring driver (801) via a pipeline; the pouring head (802) is oriented vertically downward. The simulated road section samples (9) are, from bottom to top, C50 concrete (901), improved waterborne epoxy asphalt (902), and asphalt concrete (903). The mixing and stirring unit (2) includes: a stirring cylinder (210), a base material filling port (211) located above the stirring cylinder (210), a stirring assembly (220) located inside the stirring cylinder (210), and a stirring spiral lifting rod (221) that drives the stirring assembly (220); the stirring assembly (220) is a stirring spiral lifting rod (221) vertically located inside the stirring cylinder (210); the stirring spiral lifting rod (221) is coaxially and fixedly connected to the stirring drive motor (230); The fiber proportioning unit (4) includes: a fiber storage cylinder (410), a fiber metering output device connected to the bottom of the fiber storage cylinder (410) via a conduit, and a fiber output port (450) connected to the output end of the fiber metering output device via a conduit; the fiber output port (450) extends through the inner cavity of the mixing cylinder (210); The fiber metering output device includes: a fiber picking assembly (420) located at the bottom of the fiber storage cylinder (410), a weighing partition assembly (430) located below the fiber picking assembly (420), a fiber picking and dispensing cavity (460) located between the weighing partition assembly (430) and the fiber picking assembly (420), a blower (440) located below the weighing partition assembly (430), and the output end of the blower (440) being connected to the fiber output port (450). The fiber picking assembly (420) includes: a dial wheel (421) located at the bottom of the fiber storage cylinder (410) and a dial wheel drive motor (422) for driving the dial wheel (421) to rotate.

2. The auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing as described in claim 1, characterized in that, The mixing assembly (220) further includes a flow guide spiral flange (222) disposed on the inner wall of the mixing cylinder (210) and rotating in the opposite direction to the stirring spiral lift rod (221).

3. The auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing as described in claim 2, characterized in that, The mixing assembly (220) further includes: a fiber clump dispersing assembly (223) fixed to the inner wall of the mixing cylinder (210); the fiber clump dispersing assembly (223) includes: a positioning ring (2231) fixedly connected to the inner wall of the mixing cylinder (210) and dispersing baffles (2232) fixed in an annular equidistant array to the inner side of the positioning ring (2231).

4. The auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing as described in claim 3, characterized in that, The liquid mixing unit (3) includes: The liquid storage cylinder (310), the metering pump (320) connected to the liquid storage cylinder (310) via a conduit, and the liquid pump outlet (330) connected to the metering pump (320) via a conduit, wherein the liquid pump outlet (330) extends through the inner cavity of the mixing cylinder (210).

5. The auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing as described in claim 4, characterized in that, The weighing partition assembly (430) includes: The drive rack (432), the plate-shaped weighing sensor (433) located above the drive rack (432), the drive wheel (431) that meshes with the drive rack (432), and the motor that drives the drive wheel (431) to rotate; the plate-shaped weighing sensor (433) slides horizontally on the bottom surface of the fiber material taking and placing cavity (460).

6. The auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing as described in claim 5, characterized in that, The workstation switching unit (6) includes: A switching drive motor (601) is fixed to the upper surface of the bottom support frame (101), a transmission screw (602) is fixedly connected to the switching drive motor (601) along the direction of the sample preparation flow channel (103), a transmission nut block (603) is engaged with the transmission screw (602) for transmission, and a sample loading platform (604) is provided on the transmission nut block (603); the road section simulation sample (9) is placed on the sample loading platform (604).

7. The method of using the auxiliary device for optimizing the mix proportion of water-based epoxy asphalt for bridge deck waterproofing as described in claim 6, comprising the following steps: S100: Add water-based epoxy asphalt raw material to the mixing drum (210), add liquid modifier to the liquid material storage drum (310), add fiber modifier to the fiber material storage drum (410), add asphalt concrete to the asphalt concrete mixing unit (5), and place the road section simulation sample paved with C50 concrete onto the sample loading platform (604). S200: The test mix input value controller (10) controls the quantitative delivery pump (320) to quantitatively add the liquid modified material in the liquid storage cylinder to the mixing cylinder (210). At the same time, the system controls the dial drive motor (422) to drive the dial wheel (421) to rotate, thereby quantitatively dispensing the fiber modified material in the fiber storage cylinder (410) into the fiber take-out chamber (460) below. Then, the weighing partition assembly (430) implements the weighing dispensing amount. When the dispensing amount reaches the preset value, the system controls the dial drive motor (422) to stop rotating and controls the drive wheel (431) to rotate, driving the drive rack (432) and the plate-shaped weighing sensor (433) above it to retract, thereby opening the bottom of the fiber take-out chamber (460), and the fiber modified material inside leaks down to the input end of the blower (440). Under the action of the blower (440), it is dispersed and blown into the mixing cylinder (210); the preparation of the waterborne epoxy asphalt to be tested is completed. S300: The system controls the stirring drive motor (230) to rotate, thereby driving the stirring spiral lift rod (221) to rotate, which in turn drives the mixture in the barrel to rotate and rise. At the same time, the guide spiral flange (222) on the inner wall of the barrel guides the mixture downward in the opposite direction, thereby realizing the up and down circulation in the barrel. The fiber clumps inside will collide with the dispersing baffle (2232) in the fiber clump dispersing component (223). Under continuous circulation, the fiber agglomeration in the mixture is eliminated; at the same time, the asphalt concrete stirring unit (5) is started to keep the internal asphalt concrete in a fluid state. S400: Start the workstation switching unit (6) to control the switching drive motor (601) to rotate, which in turn drives the transmission screw (602) to rotate, thereby driving the transmission nut block (603) to move horizontally, moving the sample loading platform to directly below the spray head (702), and then start the spray driver (701) to spray the test water-based epoxy asphalt material in the mixing cylinder (210) onto the upper surface of C50 concrete (901) in the road section simulation sample (9); at the same time, control the spray head (702) to move through the two-dimensional coordinate adjustment component (710) to achieve uniform spraying; S500: Continue to control the switching drive motor (601) to rotate, move the sample loading platform to below the pouring head (802), and then start the pouring driver (801) to pour the asphalt concrete in the asphalt concrete mixing unit (5) onto the improved waterborne epoxy asphalt in the road section simulation sample (9). S600: Then control the switching drive motor (601) to rotate, move the road section simulation sample out, manually remove it, and complete the road section sample preparation.

Images