Instructions for webinar participation will be provided by
GoToWebinars.com, not NRMCA. Please add them to your
contacts in order to ensure proper delivery. Login
instructions
will be sent within two business days of registration.
System
Requirements
PC-Based Attendees │
REQUIRED: Windows® 2000, XP Home, XP Pro, 2003 Server.
Macintosh®-Based Attendees
│ REQUIRED: Mac OS® X 10.3.9 (Panther®) or newer.
Webinar Description:
There are several ASTM standards dealing
with estimation of in-place concrete strength. In-place tests are of
particular value during construction because they allow assessment of
actual in-place strength before applying construction loads. These methods
are, however, used rarely and often used only to
investigate low strength test results. This webinar will review four ASTM
test methods; rebound hammer, probe penetration, pullout test, and
cast-in-place (CIP) cylinders. The underlying principles of the methods will
be discussed along with the main factors that affect test results. The
procedure for developing a project-specific correlation will be reviewed and
an example of how to evaluate data will be presented.
Webinar Topics:
Case studies of construction failures
due to low early-age strength
Review of rebound hammer, probe
penetration, pullout, and CIP cylinders.
ACI 228.1R guidelines on developing
project specific correlations
Example of data analysis
How
You Will Benefit:
It has been shown that the added cost of in-place testing can reduce the
over-all project cost by allowing more rapid construction schedules without
comprising safety. By measuring in-place strength rather than using "rules
of thumb" to decide when it is safe to apply construction loads, the rate of
construction can be increased during warm weather. On the other hand, during
cold weather in-place tests remove the guesswork in deciding whether
concrete is strong enough for removing forms or applying post-tensioning.
Use of in-place tests can reduce over-all construction costs and maintain
safety during critical phases of construction.
At the end of the course, attendees will be able to understand:
The underlying principles of the
different methods for estimating in-place strength.
The advantages and disadvantages of
each method.
The factors besides concrete strength
that affect the results of some in-place tests.
How to develop the correlation with
concrete strength.
The correct method for analyzing test
results.
Who
should attend?
This webinar will be of value to owners, concrete contractors, and engineers
.
Presenter Bio:
Dr. Nicholas J. Carino specializes in
condition assessment and concrete construction technology. He has over 25
years of experience as a research structural engineer at the National
Institute of Standards and Technology (NIST). His experience includes
nondestructive testing, in-place evaluation, the maturity method, standard
test methods. He conducted groundbreaking research that led to the
development of the impact-echo test method.
Dr. Carino has participated in the investigations of major construction
failures, led the structural assessment of the U.S. Embassy in Moscow, and
examined the properties of fireproofing for the NIST investigation of the
9/11 World Trade Center collapse.
Dr. Carino is a four-time winner of the ACI Wason Medal for research on the
maturity method, the impactecho method and behavior of high-strength
concrete at high temperatures. He has held numerous leadership positions
within committees of the American Concrete Institute and ASTM International.
In recognition of his contributions, he has received numerous awards from
ACI and ASTM.
Dr. Carino was an assistant professor at The University of Texas at Austin
and was recognized for his teaching abilities. He is well known for his
written and verbal communication skills and is co-editor of the Handbook on
Nondestructive Testing of Concrete.
Practice Areas
Concrete Materials Technology
Condition Assessment
Failure Investigation
Laboratory Testing
Litigation Support
Materials Evaluation and Research
Nondestructive Evaluation
Research and Testing
Representative Projects
Failure
Investigations and Condition Assessments
Harbor Cay Condominium Collapse, Cocoa
Beach, Florida
Riley Road Ramp Collapse, East Chicago,
Indiana
Structural Assessment of New U.S.
Embassy Office Building in Moscow
Member of NIST investigation of World
Trade Center collapse
Research
Developed technical underpinning
leading to the development of the first standard on the maturity method
(ASTM C1074)
Initiated ground breaking research that
led to the development of the impact-echo method (ASTM C1383)
Fundamental investigations of the
pullout test method
Effects of testing variables on
measured compressive strength of high-strength concrete
Curing of high-performance concrete
Applications of infrared thermography
for NDT of fiber reinforced polymer composites
Technical Committees
American Concrete
Institute
Board of Direction (Past Member)
Technical Activities Committee (Past
Member)
TAC Specifications Committee (Past
Chair)
ACI 228- Nondestructive Testing (Past
Chair)
ACI 301- Specifications for Structural
Concrete
ACI 318A- Structural Concrete Building
Code
ASTM International
C09 - Concrete and Concrete Aggregates
(Past Chair)
C09.90 - Executive Subcommittee
C09.24 - Nondestructive and In-Place
Testing (Past Chair)
C09.61 - Testing for Strength (Task
Group Chair)
Awards
Fellow American Concrete Institute
Fellow ASTM International (Award of
Merit)
ACI – Delmar L. Bloem Distinguished
Service Award
ACI – Robert E. Philleo Award
ACI – Arthur R. Anderson Award
ACI – Wason Medal for Materials
Research (4 times)
