Management and evaluation of asphalt concrete mixtures : case study

Dissertant

al-Khafaji, Ali Amir Kamal

Thesis advisor

Muslim, Majid

Comitee Members

Bazlamit, Subhi
Jriw, Basim

University

Isra University

Faculty

Faculty of Engineering

Department

Department of Civil Engineering

University Country

Jordan

Degree

Master

Degree Date

2017

English Abstract

The process of producing and designing good asphalt mixtures based on specifications and standards is not an easy or simple process.

In the Hashemite Kingdom of Jordan, asphalt mixtures are designed using Marshall Design Method.

Many tests are made to ensure the quality of the asphalt that is used to base highways like the Stability, Flow, Specific Gravity, Air Voids and Voids in the Mineral Aggregate (VMA).

In this study, 142 asphalt mixed samples were used with different amounts of the contents of the mixture (Asphalt Cement, Fine Aggregate, Course Aggregate and Filler) in which 71 samples of the Wearing layers and 71 samples of the Binder layer were already tested as actual data and validated the by SPSS Computer Software to determine the predicted models to estimate the actual data for management process.

The dependent variables are (Stability, Flow, Specific Gravity, Air Voids and Voids in the Mineral Aggregate (VMA).

The independent variables are (Asphalt Cement, Fine Aggregate, Course Aggregate and Filler).

The Correlation Coefficient (R2) of each dependent variables were determined.

The (R2) for Specific Gravity is (59.8 %), for Air Voids are (76.2 %), for Stability is (74.9 %), for Flow is (90.3 %) and for VMA is (61.0 %) respectively.

A Flow Management Diagram was designed for Actual and Predicted results based on the adjustment factor for each dependent variable

Main Subjects

Civil Engineering

Topics

• Evaluation
• Concrete
• Asphaltic concrete
• Asphalt cement

No. of Pages

121

Table of Contents

• APA
• MLA
• AMA

Language

English

Data Type

Arab Theses

Record ID

BIM-750315