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Dissertation/Thesis Abstract

Investigation of fracture properties of California asphalt concrete mixtures
by Hakimelahi, Hamed, M.S., California State University, Long Beach, 2013, 66; 1527553
Abstract (Summary)

Fatigue cracking is a primary distress in asphalt due to repetitive stresses and strains caused by traffic. The main objective of this study is to investigate the use of the semi-circular bend (SCB) test as a quality assurance/quality control (QA/QC) measure for field construction.

The SCB test parameters were determined using two methods, the first of which was cross-head movement (CHM), and the second was non-contact camera. In SCB CHM method the specimens were loaded monotonically until fracture under a constant cross-head deformation, while in none-contact camera method a camera was fixed in front of the SCB specimen to measure the crack length. In addition beam-fatigue test (BFT) was conducted according to AASHTO T-321 on the same mixtures.

A comprehensive comparison between the test results is performed. The results of this study indicate that the SCB test has a great potential as a QA/QC test of fracture properties of asphalt mixtures.

Indexing (document details)
Advisor: Saadeh, Shadi
Commitee: Parentela, Emelinda, Star, Lisa
School: California State University, Long Beach
Department: Civil Engineering and Construction Engineering Management
School Location: United States -- California
Source: MAI 52/05M(E), Masters Abstracts International
Subjects: Civil engineering, Mechanical engineering
Keywords: Asphalt-pavement-hot mix, Beam fatigue, Fracture properties and cracking, Semi-circular bend, Stress and strain
Publication Number: 1527553
ISBN: 978-1-303-79592-3
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