presented by Trevor Looney, University of Oklahoma
Thursday, August 27th, 1-2PM EST
This webinar will feature a presentation one of the Slag Cement Association's 2018 research award winners. An overview of the project and what will be covered is detailed below:
The outstanding strength and durability properties of ultra-high-performance concrete (UHPC) make it an ideal material for use in infrastructure applications. The purpose of this study was to develop UHPC mix designs that were cost-effective and able to obtain comparable properties to commercially available products, then evaluate the performance of the best mix design when used as a joint material.
UHPC mix designs were evaluated using materials easily obtained in the state of Oklahoma such as Type I and III cement, Class C fly ash, VCAS 140 White Pozzolans produced by Vitro Materials, slag cement, silica fume, masonry sand, and a high-range water reducer.
Slag cement played a large role in the development of these mix designs. Even with large replacement levels up to 40% of total cementitious content, the developed UHPC mix designs performed as well as Ductal® in most tested applications. Furthermore, the slag cement improved the workability and ease of placement over conventional UHPC while reducing the overall cost of the mixes.
The SCA encourages participants to preregister for each webinar at the links above. For those who can’t attend the live webinar the recordings will be archived on the SCA website to view on demand at www.slagcement.org/videos.
Meet the Speakers
B.Eng, LEED AP bd+c
Technical Services Engineer, St Marys Cement Inc. (U.S.)
Kalyn has been with the company for more than 15 years. He received his degree in civil engineering from Ryerson University in Toronto, ON, Canada. His responsibilities include providing concrete solutions to the cement customers and promotion of concrete and cementitious products. Kalyn is involved with the PCA Sustainability committee, ICPI Technical and Education Committees, SCA Great Lakes and Marketing Technical Committees and is involved in the MIT sustainability hub.
Assistant Cement Technical Director, Argos USA
Betz provides technical support for the activities relating to the manufacture, distribution, sales and marketing functions of Argos’ U.S. cement operations. He graduated with cum laude honors from Alpena Community College with an Associate degree in the Applied Sciences of Concrete Technology in 2002. Betz has more than 17 years of industry experience including field quality assurance, laboratory management, concrete mixture design and materials quality management. He participates in the Georgia Ready Mix Concrete Association and Georgia Chapter – ACI, Alabama Concrete Industries Association, Alabama Chapter – ACI, Mississippi Concrete Association, Portland Cement Association’s Product Standards and Technology Committee and various PCA state codes groups as well as the SCA Southeast Promotion Group and Technical Marketing Committee. He is active in ASTM C01 and C09 committees as well as ACI 225 and 233 committees.
PhD Student, University of Miami
Sivakumar is a PhD student working under the supervision of Dr. Prannoy Suraneni at the University of Miami. His primary research interests include reactivity of supplementary cementitious materials, alternative supplementary cementitious materials, and effects of supplementary cementitious material replacement levels and fineness on concrete properties.
Technical Services Engineer, Argos USA LLC
Maddrey received his B.S. in civil engineering from Old Dominion University, Norfolk, VA. He worked in the ready mixed concrete industry as a Technical Services Manager for 26 years prior to coming to Argos in January of 2020. Maddrey is a NRMCA Level 4 Concrete Technologist.
Technical Services Engineer, Argos USA LLC
McCabe received his BS in chemical engineering from Carnegie Mellon University. He worked for the Cement and Concrete Reference Laboratory (CCRL) at the National Institute of Standards and Technology (NIST) as a laboratory inspector for six years. McCabe has been working for Argos, formerly Essroc, as a Technical Services Engineer since 2007.
The ideas expressed in these presentations are those of the speaker and do not necessarily reflect the views of the SCA or its committees.