Understand how the concrete mixture design impacts the design, construction, and performance of a structure.
Concrete is frequently viewed as a simple construction material that is specified primarily based on strength. However, concrete is actually a complicated heterogeneous material that must be specified, designed, and proportioned correctly to perform as intended by owners, engineers, and architects over the service life of the structure. Improper mix development and design are responsible for delays and claims on construction projects around the country. This topic is intended to educate viewers on the basics of concrete materials and mix development. This information will be of benefit for all parties involved with concrete construction including, engineers, architects, contractors, subcontractors, design professionals, government administrators, suppliers, and owners/building managers. Review the basic ingredients of a concrete mix design, including mineral and chemical admixtures that are routinely used to change the performance characteristics of concrete. This material will explain how to address durability and desired performance characteristics in the development of concrete mixture proportions. This information is critical for parties involved in concrete construction so they can understand how the concrete mixture design impacts the design, construction, and performance of a structure.
R. Brett Holland, Ph.D., P.E., S.E.
Simpson Gumpertz & Heger Inc
- Senior project manager at Simpson Gumpertz & Heger, a 600-person consulting engineering firm with headquarters in Waltham, MA
- Registered engineer in AL, GA, IL, MA, NY, RI, TX, and VA
- Experienced in the development of high-performance concrete (HPC) mix designs for specialized durability or strength requirements
- Experienced in the implementation of specialty concrete performance in design and construction
- Experienced in precast concrete production and troubleshooting assignments
- Experienced in condition assessment, repair, and rehabilitation of existing concrete structures, including historic stadiums, parking garages, and transportation structures
- Author of several publications related to the design, durability, and performance of HPC concrete
- Active member of the American Concrete Institute, including Associate Member Committee 201 – Durability of Concrete, Associate Member Committee 236 – Material Science of Concrete, and Voting Member Subcommittee 318-A – Structural Concrete Building Code: Concrete Materials and Construction
- BSCE, MSCE, and Ph.D. degrees, Georgia Institute of Technology
- Can be contacted at [email protected]
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