In this quarterly IBT/ABC-UTC Research Seminar, Ali Akbarpour, Ph.D. Student; and Shreya Vemuganti, Ph.D., Assistant Professor, Principal Investigator of Oklahoma University present work related to pull-off strength of polymer concrete and the effects of nanomodification.

Earn 1-hour Certificate of Attendance (https://abc-utc.fiu.edu/webinars/certificates-of-attendance/)

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Description: Polymer concrete is a suitable system for accelerated bridge construction and repair due to their high tensile capacity, rapid cure, high bond strength, light weight, and small thickness. This study investigates the effect of nanomodification with carbon nanotubes on the pull-off strength of Methyl Methacrylate based polymer concrete in accordance with ASTM C1583. Pristine and functionalized carbon nanotubes with carboxyl and ammonia groups have been used in less than 1.5 wt.% amounts to the polymer resin. The study extends to evaluating the bond strength performance with a deteriorated concrete substrate subjected to sulphate exposure. Microscopic investigations were conducted to support the results observed in the pull-off tests.

Presenters:
 

Shreya Vemuganti, Ph.D.
Assistant Professor
School of Civil Engineering and Environmental Science
University of Oklahoma
Email: svemugan@ou.edu

Dr. Shreya Vemuganti is an Assistant Professor in the School of Civil Engineering and Environmental Science at the University of Oklahoma. She received a PhD from the University of New Mexico in 2021 with an outstanding graduate award.  Her research focus includes developing innovative and applicable solutions for aging infrastructure with nano synthesized polymers, 3D printed designs, fiber reinforced polymer composites and nondestructive evaluation.

Presentation Graphics:

Carbon nanotube dispersion stages: magnetic stirring, ultrasonic

Core drilling using universal drilling machine and steel loading devices attached to drilled cores

Neat polymer concrete overall pull off text

Microscopic analysis showing pore structure in COOH and Nh3 modified nanomodified PC overlays

Specimens being exposed to sulfate environments, (a) after 28 days, (b) after 210 days

Question & Answer Period: Submit your questions when you register for the seminar and also in the question box during the seminar. (15 minutes)

Certificate of Attendance: Each site registered for this seminar will receive an email for your response. Just click the first link in the email to obtain a certificate. For multiple participants at a site, the point-of-contact registrant for that site also clicks the second link in the email, logs in, and clicks “Attendees” to provide first name, last name, and email address for each participant at that site; each participant will then receive an automatic email with link to print an individual certificate. Accessing the second link in the email will also allow participants to print certificates for past seminars that were attended by simply clicking the seminar title. Please let Ms. Ankitha Arvan at FIU know if you have questions or need assistance with receiving your certificate. Ankitha’s email address is aarvan@fiu.edu.

For more information: Please contact us by sending an email to abc@fiu.edu.