*********************************
There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
*********************************
*13-day advance notice approved by CEE Graduate Committee 5/1/19
School of Civil and Environmental Engineering
Ph.D. Thesis Defense Announcement
Assessment of Limestone-Portland Cement for Structural Applications
By
Ahmad Shalan
Advisor:
Dr. Lawrence Kahn (CEE)
Committee Members:
Dr. David Scott (CEE), Dr. Donald White (CEE), Dr. Russell Gentry (ARCH), Dr. Giovanni Loreto (Kennesaw State University)
Date & Time: Tuesday, May 14, 1pm
Location: Sustainable Education Building (SEB) 122
This research assessed the applicability of Type IL cements satisfying AASHTO M 240 specifications for use in structural applications in place of Type I/II cements which satisfy AASHTO M 85 specifications for construction of transportation structures. Type I/II and Type IL cements from five producers were investigated where Type IL cements included up to 15% calcite by mass. The cements and both mortars and concretes made with these cements were studied to determine material properties including setting time and hydration kinetics; mechanical properties including strength development, elastic modulus, and tensile strength; dimensional stability properties including drying shrinkage and creep; and structural properties for precast prestressed concrete including Mostafa strand pull-out strength, transfer length, development length, and beam flexural strength. The results showed that the performance of concrete made with Type IL cement was primarily affected by the cement fineness which increased strength and drying shrinkage. The structural properties of concrete made with Type IL cement showed similar performance to concrete made with Type I/II cement. Type IL cement may be used in place of Type I/II cement when fineness values are specified.
