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Operations Topics	Promotion Topics	Technical Topics	Safety & Environmental Topics

Presented by: Nick Carino, formerly NIST  (BIO)
Time: 10:30 am EST │ 1.5 hours duration
Pricing: $50 (Members & Non-Members)

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)

• ACI Capitol Chapter Distinguished Member Award

• ASTM Committee C09 Honorary Member

• ASTM Frank E. Richart Award

• ASTM Robert J. Painter Memorial Award

• ASTM Katharine and Bryant Mather Award

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