Title page for ETD etd-12042009-020138
|Type of Document
||Alattar, Iyad Ahmed
||Evaluation of Troxler 3241-C nuclear asphalt content gauge used for Marshall specimens
||Master of Science
|Al-Qadi, Imadeddin L.
|Walker, Richard D.
|Weyers, Richard E.
|Date of Defense
Asphalt cement content is one of the most important
requirements for producing high quality hot-mix asphalt. The
determination of the asphalt cement content of hot-mix
asphalt by traditional methods is time consuming and
hazardous. A demand for faster and safer methodes) led to
the development of a nondestructive technique using nuclear
technology. Measuring asphalt cement content of Marshall
specimens by nuclear gauges is a new technique; this study
evaluates the feasibility of using the nuclear gauges. Two
hundred fifty-six specimens were prepared for this purpose.
The study evaluated the effect of different parameters on the
measured asphalt cement content by 3241-C Troxler nuclear
asphalt content gauge. The following parameters were
considered: aggregate type, aggregate gradation, air-void
content, moisture content in specimens, asphalt cement
content, and total specimen weight. Different calibration
models were developed for different bituminous mixtures.
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