การศึกษาคุณสมบัติของแอสฟัลต์คอนกรีตเมื่อใช้วัสดุชั้นผิวทางเดิมที่ปรับปรุงคุณภาพด้วยเส้นลวดในยางรถยนต์

Abstract

This research studied the properties of asphalt concrete that was mixed with the original pavement material and improved with wires in car tires, size approximately 10-20 millimeters. This research is designed to define the mixture as the percentage by weight of the aggregate. Rock dust, 3/8”, 1/2”, 3/4” are equal to 40 : 23 : 17 : 20. The amount of asphalt cement is equal to 5.0% by total weight of aggregate. This research tested the engineering properties, including stability, flow, and SEM. It was found that at a mix ratio of W0.1, the highest stability was 2,524.77 lbs, which is higher than HMA, which has a stability value of only 2,260 lbs. Every wire mixture in tires has a higher density than all HMA. Consistent with the presence of tire-derived steel, bonds will form within the asphalt aggregate, bonding together on the surface of the wires in tires, which are rough and adhere to the asphalt. It can be clearly seen from the photo of the SEM test results that it passed the criteria specified for the Binder Course class. It can be used in road with high traffic volumes (Heavy Traffic). It will reduce the mixing ratio of new aggregates and allow for recycling of materials. Adding RAP as an ingredient can reduce the use of new aggregate by up to 20 percent and reduce the cost of AC Binder Course by 5 percent per square meter. It can be reused and reduces the cost of destroying old tires that have already been used.