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.
Learning Objectives
- You will be able to define the roles and characteristics of basic concrete ingredients.
- You will be able to describe the purpose of different chemical and mineral admixtures and understand their effect on concrete performance.
- You will be able to identify durability design requirements that should be incorporated into the development of a concrete specification or mix design.
- You will be able to discuss how performance characteristics affect concrete mixture proportioning and how to address them in notes and specifications.
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Agenda
Concrete Basic Ingredients
Chemical Admixtures
- Water-Reducers
- Air-Entrainers
- Set Accelerators/Set Retarders
- Corrosion Inhibitors
- Specialty Admixtures
Mineral Admixtures
- Cementitious Materials
- Pozzolanic Materials
- Pozzolanic/Cementitious Materials
- Finely Ground Inert Minerals
Durability Design
- Material-Related Durability
- Performance-Related Durability
Proportioning Concrete Mixtures
- Selection of Materials
- Selection of Proportions
- Weighing/Batching of Materials
- Mixing
- Transporting/Delivery
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Why Lorman?
Over 37 years and 1.4 million customers worth of experience providing continuing education. Our passion is providing you world-class training to help you succeed in business and as a professional.
Credits
OnDemand Course
This course was last revised on April 27, 2021.
Call 1-866-352-9540 for further credit information.
No Credit AvailableThis program does NOT qualify, nor meet the National Standard for NASBA accreditation.
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Why Lorman?
Over 37 years and 1.4 million customers worth of experience providing continuing education. Our passion is providing you world-class training to help you succeed in business and as a professional.
Faculty
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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Why Lorman?
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