Chulalongkorn University Theses and Dissertations (Chula ETD)

การศึกษาพฤติกรรมที่ขึ้นกับเวลาและอุณหภูมิของแอสฟัลติกคอนกรีต AC40/50, AC60/70 and AC80/100

Other Title (Parallel Title in Other Language of ETD)

A study of time-temperature dependent behaviors of asphaltic concrete AC40/50, AC60/70 and AC80/100

Year (A.D.)

2010

Document Type

Thesis

First Advisor

สุเชษฐ์ ลิขิตเลอสรวง

Faculty/College

Faculty of Engineering (คณะวิศวกรรมศาสตร์)

Degree Name

วิศวกรรมศาสตรมหาบัณฑิต

Degree Level

ปริญญาโท

Degree Discipline

วิศวกรรมโยธา

DOI

10.58837/CHULA.THE.2010.1488

Other Abstract (Other language abstract of ETD)

This paper presents a study of time-temperature dependent behaviors of asphaltic concrete AC40/50, AC60/70 and AC80/100. The samples of dense grade hotmixed asphalt were mixed according Marshall Method. Limestone with the nominal size of 12.5 mm and asphalt cement penetration grade of AC40/50, AC60/70 and AC80/100 were employed in this study for aggregate and asphalt binder respectively. All specimens were prepared using the Superpave gyratory compactor and tested according to the static indirect tensile test, the dynamic indirect tensile test, the static uniaxial compression test and the dynamic uniaxial compression test known as the Dynamic Creep test. During test, the temperatures were controlled at 10℃, 25℃, 40℃ and 55℃ respectively and the strain rates were controlled at 5, 15, 50 and 150 mm/minute respectively for static modes. The results can be used to construct the relationships between stress and strain, elastic modulus and strain and permanent deformation and numbers of cycles. Moreover, the results can be used to find resilient modulus and simplified as the empirical equations for approximated permanent deformation of asphaltic concrete. These could be employed in the flexible pavement design.

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