Paul Ramsburg, Sika Corp.
Sept. 8, 2022
Noon – 1:00 p.m. Eastern
In our quest for the perfect mix design, we often experiment with a variety of cementitious materials and admixtures, while potentially ignoring the most influential material of them all: the aggregates. In terms of volume and weight, they are the dominant material, and their gradation has a significant impact on concrete strength, durability, sustainability and even cost. That’s why optimizing combined aggregate gradation should be a priority, especially in precast, given the critical nature of early-age loading, durability requirements of transportation and environmental structures, and the production of self-consolidating concrete. During this session, mix design and mustache connoisseur, Paul Ramsburg with Sika Corp., will delve into the concept of studying both coarse and fine aggregates combined gradations. Paul will talk about the influence of aggregate shape, texture, quality and gradation on concrete performance. Using different methods, he will demonstrate how to find gaps in grading to optimize the mix design’s potential. Attendees will learn why optimizing combined aggregate gradation could be a game changer in getting closer to that perfect mix design.
At the conclusion of this course, you will be able to:
- Define combined aggregate gradation.
- Identify at least two methods of combined aggregate gradation analysis.
- Explain how optimized aggregate gradation can benefit their operation.