A STUDY ON ASSESSMENT OF TEMPERATURE FLUCTUATIONS IN ASPHALT CONCRETE AND FORCED COOLING MAINTENACE METHOD FOR SOME ARTERIAL IN DANANG CITY

Tóm tắt

The temperature factor has been vitally affecting the operational quality of highway construction, especially in the middle area of Vietnam which usually exposed to huge amount of solar heat annually. This paper aims at proposing and discussing on the temperature environmental condition of some arterials in Danang city. The paper also presents laboratory tests designed to grasp a practical theory for proposing an effective maintenance method to send temperature plummeting on asphalt concrete layer. It was found that, the average temperature rising on some arterials in Danang city is severe, also the disparity of temperature between environment and road surface remains high. Besides, experiments showed that only by a short time of forced cooling by ice air, the temperature of asphalt concrete can be maintained at safety range for a long duration of time. Besides, experiments showed that only by a short time of forced cooling by ice air, the temperature of asphalt concrete can be maintained at safety range for a long duration of time.