Monday, March 30, 2026 3:30 PM - 4:30 PM, Vienna
This session explores how performance and quality of concrete can be assessed using parameters beyond compressive strength. Presenters will discuss statistical evaluation methods, lessons learned from field data, and best practices for interpreting test results. Attendees will gain insights from NRMCA TIP 23 and ACI 214 guidance, learn how to apply statistical tools for compliance and quality assessment, and review case studies from airfield pavements. The session emphasizes how better data interpretation can improve specifications, communication, and overall project performance.
Learning Objectives:
(1) Understand how statistical principles from NRMCA TIP 23 and ACI 214 can be applied to interpret concrete strength test results accurately;
(2) Identify common misconceptions and sources of variability in strength testing and acceptance criteria;
(3) Evaluate field data to compare performance measures such as flexural strength, permeability, and resistivity in airfield concrete pavements;
(4) Develop strategies to improve specifications and quality communication among concrete producers, testing agencies, and specifiers.
Insights from NRMCA TIP 23 – Understanding Strength Test Results for Concrete
Presented By: Glenn Schaefer
Affiliation: NRMCA
Description: Concrete strength test results are among the most scrutinized indicators of quality and performance, yet they are also frequently misunderstood or misapplied. This session will highlight key concepts from NRMCA TIP 23 – Understanding Strength Test Results for Concrete, focusing on how statistical principles can be used to interpret test data correctly and make informed decisions about compliance, quality, and specification limits. Presentations will explore how TIP 23 aligns with ACI 214 guidance, address common misconceptions surrounding acceptance criteria, and discuss how improved statistical understanding can support performance-based specifications and better communication between producers, specifiers, and testing agencies.
Evaluation of Runway Pavement Performance
Presented By: Colin Reed
Affiliation: Panynj
Description: This presentation will examine the statistical evaluation of flexural strength tests performed on concrete runways at JFK Airport. It will present analysis of averages and standard deviations to assess consistency and performance trends. The discussion will also cover testing methods used to verify lower-permeability PCC pavements, including the use of surface resistivity testing as a screening tool in conjunction with ASTM C1202 rapid chloride permeability testing.
Comparing QA and QC Test Results for Flexural Specimens
Presented By: James Hoskins Iii
Affiliation: Certerra
Description: This presentation will compare results from side-by-side laboratory testing conducted on several airport projects, focusing on flexural strength, air content, slump, temperature, and unit weight. Using real project data, it will highlight differences between QA and QC testing and discuss the potential implications for specification compliance and acceptance decisions.