Department
Chemistry
Major
Chemistry
Research Advisor
Woelk, Klaus
Advisor's Department
Chemistry
Funding Source
OURE; Summer Scholars Program
Abstract
Nuclear Magnetic Resonance (NMR) spectroscopy is a well-known analytical technique that uses the excitation of nuclear spins for solving chemical structures and conformations. Relaxometry is a special field of NMR spectroscopy where information is gained about interactions of 100 nuclear spins with their molecular surroundings. The deterioration of asphalt is a major infrastructure problem, and its rejuvenation back toward its original virgin state is an important field of research and development. The current asphalt industry relies on visual inspection on site and invasive or destructive physical methods to assess emerging asphalt failures. This study examines the chemical changes environmental factors have on asphalt binders by using NMR relaxometry. The effects heat treatments have on virgin and UV aged binder samples are quantified by the relaxation times of the organic hydrogen atoms in bituminous asphalt-binder samples. The research is aimed at providing insight into the integrity of asphalt before failures become apparent.
Biography
Kaitlin Miles came to Missouri S& T from Griggsville Illinois. She is a sophomore Vanguard Scholar majoring in chemistry with an emphasis in Biochemistry. She was awarded First-Year Research Experience (FYRE), Summer Scholars Program, and Opportunities for Undergraduate Research Experiences (OURE) from the College of Arts, Science, and Education to conduct a research project in physical chemistry and spectroscopy. Kaitlin's career goals involve exploring an interest in toxicology and environmental conservation.
Research Category
Sciences
Presentation Type
OURE Fellows Proposal Oral Applicant
Document Type
Presentation
Location
Havener Center - Carver Room
Presentation Date
10 April 2024, 1:00 pm - 4:00 pm
Included in
Heat's Effect on Asphalt Binders Using NMR
Havener Center - Carver Room
Nuclear Magnetic Resonance (NMR) spectroscopy is a well-known analytical technique that uses the excitation of nuclear spins for solving chemical structures and conformations. Relaxometry is a special field of NMR spectroscopy where information is gained about interactions of 100 nuclear spins with their molecular surroundings. The deterioration of asphalt is a major infrastructure problem, and its rejuvenation back toward its original virgin state is an important field of research and development. The current asphalt industry relies on visual inspection on site and invasive or destructive physical methods to assess emerging asphalt failures. This study examines the chemical changes environmental factors have on asphalt binders by using NMR relaxometry. The effects heat treatments have on virgin and UV aged binder samples are quantified by the relaxation times of the organic hydrogen atoms in bituminous asphalt-binder samples. The research is aimed at providing insight into the integrity of asphalt before failures become apparent.
