concrete specifications, troubleshooting low-strength problems and ensuring
proper mixture submittals can be expensive and time consuming. This online
course will get into the code and specification requirements (ACI 318, 301,
ASTM C94) governing ready mixed concrete, including the new ACI Building
Code 318-14 exposure categories. We will suggest specification revisions for
all around benefits in performance and cost based on a specification
guideline document. The guideline document is the result of reviewing
numerous concrete specifications (Section 03300) belonging to large owners,
and it has been reviewed and supported by the NRMCA
Research, Engineering & Standards (RES) Committee.
WHAT YOU WILL LEARN
strength problems is perhaps the primary reason for back charges for a
concrete company. This could be almost entirely avoided by knowledgeable
concrete technical personnel. The webinar will cover the analysis of strength
test results to identify the causes of low-strength problems, including
technician competence, and will provide guidance in tracking compliance with
specification requirements. Other topics to be discussed include
non-destructive testing techniques (such as the Rebound Hammer), core
testing, evaluating core test results for acceptance, and the assignment of
Another part of this course provides the necessary details required for an
efficient concrete mixture submittal following the ACI 318 flowchart for
Selection of Concrete Mixtures.
Group Analysis of Typical Mixture Design Submittal.
Webinar Day 2
11:00 am: Specification Revisions for all around benefits.
12:00 pm: Concrete Test Reports
What do they tell me?
12:45 pm: What causes low strength tests and how does it affect my
Webinar Day 3
11:00 am: Who is responsible for the low break (testing,
11:45 am: Using the computer
program to analyze concrete strength results.
12:00 pm: Investigating concrete
When to use
NDT, coring, load test, petrography?
Luke M. Snell, P.E., FACI, FASCE,
is a Senior Materials Engineer at Western Technologies, Phoenix Arizona
and is an Emeritus Professor from Southern Illinois University
Edwardsville. He has done extensive consulting work on construction and
concrete problems throughout the U.S., Saudi Arabia, Mongolia, and
Algeria. He has also written over 200 articles on concrete, construction
materials, and construction education. Snell is the Chair of the ACI International Committee. He has been instrumental in stating ACI chapters in Mongolia, Algeria and Ethiopia and has worked with India and Saudi Arabia to start concrete certification programs.
He is or has been a member of several ACI Committees. He is a Past Chair of ACI Committees 517, Accelerated Curing of Concrete; E702, Designing Concrete Structures; the ACI Chapter Activities Committee; ACI 120, History of Concrete and the Educational Activities Committee. He is also a past member of the Board of Direction. Snell is an ACI Fellow and received the ACI Joe W. Kelly Award, the ACI Chapter Activities Award, and was the ACI Educational Committee Member of the Year.
He has received various other awards and was named one of the Ten Most Influential People of the Year in the Concrete Industry by Concrete Construction and Concrete Producer magazines, Construction Laureate of Mongolia, and the Henry L Kennedy Award from ACI.
He is a licensed Professional Engineer in Missouri, Illinois, and Arizona.
Karthik Obla, Ph.D., P.E.,
FACI, is Vice
President, Technical Services at NRMCA. With nearly 25 years of
experience in concrete technology, he is responsible for NRMCA’s
concrete producer quality initiatives as well as various educational and
technical programs. He supports NRMCA’s P2P initiative and manages all
the research and testing projects at the NRMCA research laboratory. A
Fellow of ACI and a winner of ACI’s Young Professional Achievement Award
and ASTM Award of appreciation from the Sustainability Committee, Dr.
Obla is an active member of various ACI, ASTM, and TRB technical
committees. He has served as chair for ASTM 09.49—Pervious Concrete, and
ACI 232—Fly Ash and Natural Pozzolans. He has published a book on
concrete quality and a chapter in a book on concrete sustainability and
has over 75 technical articles in journals. He holds a B. Tech in civil
engineering from IIT (BHU) Varanasi, India and a MS and Ph.D from
University of Michigan, Ann Arbor. He is a licensed professional
engineer in the state of Maryland and has served as Vice-president and
President for the ACI San Antonio Chapter.
Architects and engineers will earn 8 Professional Development Hours upon
completion of this program.
A certificate of completion will be provided to
all attendees. This program also fulfills some of the requirements for
Certified Concrete Professional program.
(Members & Non-Members)
Cancellation Policy –
48 hours prior to the start of the class for refund.
For more information, contact Jessica Walgenbach, NRMCA
senior director of meetings