การประยุกต์ใช้งานเสริมผิวคอนกรีตแบบไม่เชื่อมประสานสำหรับผิวทางคอนกรีตปูนซีเมนต์ปอร์ตแลนด์ – กรณีศึกษาจากลานจอดเครื่องบินเดิมของท่าอากาศยานนานาชาติสุราษฎร์ธานี

Abstract

This paper presents a case study on rehabilitation design and proper workflow that had been used in a project of existing apron 45000 Sq.m. by an Unbonded Concrete Overlay (UBCO) at Surat Thani International Airport, Surat Thani until the project was completed. The structure of the existing apron has deterioration from use such as cracking, potholes, and scaling. Thus, rehabilitation is needed to maintain functional ability and extend the lifetime by using a proper design with reference to AASHTO guidelines. From existing apron observation, it was found that the structure of the existing pavement is still strong. Therefore, repairing by UBCO was considered as the most effective method because it helps construction be easily applied, fast, saving, and worthwhile due to no existing pavement removal. However, this method has to be concerned about the thickness of the existing pavement and joint design.