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Small scale all environment road acceleration loading system
NegotiableUpdate on 05/06
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Overview
Purpose: Under temperature control conditions, apply rapid rolling action to the on-site pavement structure (or laboratory specimens) to simulate the traffic load of the pavement structure for several years to more than ten years in a short period of time. By using auxiliary performance indicator measurement equipment, the performance degradation law of pavement structures (materials) during service can be obtained, the service life can be predicted, and the appropriate maintenance timing can be determined. Select a pavement structure combination design scheme that meets local climate and traffic conditions, and evaluate the performance of new materials.
Product Details
Small scale all environment road acceleration loading system
As a major country in the research of accelerated loading test methods, China currently has accumulated various accelerated loading equipment40Set. Based on the rich user experience of various units, as well as its own technical research and development experience, Shandong Jiaotong University has made significant design improvements and performance optimizations to the traditional solution in the newly released new accelerated loading test equipment.
A true 'portable' small acceleration loading device
The "accelerated loading" test was developed for testing on real field roads, so the mobility of the equipment is very, very important. In order to achieve the design goal of "mobility",ALT-S100The following special designs have been carried out:
1.increased2A steering wheel and2The driving wheel and driving device can be controlled through a wireless remote control or software interface on the control panel to move forward, backward, and turn the equipment. They can be moved short distances at the test site to facilitate testing of changes in indicators such as wheel ruts, texture, and strength during loading intervals.
2,increased4An independent lifting support leg is used to adjust the height of the steering wheel and drive wheel, adjust the load of the test wheel, and adjust the angle of the equipment to adapt to the transverse and longitudinal slopes on site.
3.4A leg with a hook design can be used to lift equipment onto transport vehicles during long-distance transportation.
This short distance self moving function eliminates the need to rent a crane and increase additional testing costs during the testing process. Accelerated loading tests usually require loading hundreds of thousands or even millions of times, and measuring road performance indicators at intervals. If we need to rent auxiliary devices such as cranes and forklifts for each measurement of moving equipment, it will be time-consuming, labor-intensive, and costly.
Automation control
ALT-S100As a new generation of accelerated loading test equipment, it has achieved more automated control functions in operation. The complete set of equipment includes2A color touch screen controller(The top is used for temperature control of environmental devices, and the right side of the control panel is used for overall system control)，1A video surveillance system(Real time monitoring of test wheel loading status)Set up a quick control button panel and1A remote control is used for short distance movement control of the device. Throughout the entire experimental process, except for manual lifting/Except for lowering the steering wheel and drive wheel and operating the limit sleeve, almost all other tasks have been automated.
environment simulation
The performance of asphalt pavement materials is closely related to climatic conditions, especially temperature, which is a crucial factor affecting their performance. Therefore, in order to enable all users to simulate temperature conditions during the experiment,ALT-S100Make temperature control function a standard configuration. After providing a sealed environment through the sealing device at the bottom, the temperature control device at the top of the equipment can provide-20℃ to+70The temperature simulation function of ℃ meets the requirements for simulating the annual temperature in most regions of the country. The aging of asphalt pavement under sunlight exposure is also one of the main reasons for the deterioration of asphalt pavement performance. ThereforeALT-S100The standard configuration also includes a UV simulation device, which is used to continuously irradiate the road surface with UV aging during the testing process.
Wheel rut measurement
Among the evaluation indicators for accelerated loading tests of pavement structures, rut depth is one of the most important indicators. In order to facilitate the measurement of rut depth, Shandong Jiaotong University has also developed a dedicated laser section rut meter based on laser ranging technology, with a detection length of up to1100mmDistance between measuring points1mmThe detection accuracy has reached0.1mmIt can measure both the lateral rutting curve and the longitudinal deformation depth of the track belt.
