On-Demand Course: Getting to the Core of Core Testing

Price: $ 39.00 USD

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INSTRUCTIONS: Read and study the materials included in this module. Then, complete and pass the corresponding 10-question quiz with a score of 80% or higher to receive a certificate for 0.1 CEU (equivalent to 1.0 PDH). This online course is not approved for credit with the Florida Construction Industry Licensing Board (CILB).

Continuing Education Credit: 0.1 CEU (1 PDH)

Approved by AIA (LU/HSW)

Access Period: 30 days


This module is based on web sessions from the ACI Spring 2011 Convention in Tampa, Florida. They discuss ACI 214.4R-10, “Guide for Obtaining Cores and Interpreting Compressive Strength Results.” These three presentations review the contents of ACI 214.4R-10, the reasons for low in-situ compressive strengths, and how to plan a coring program for an existing structure.


Document Details

Publication Year: 2012


Categories: Testing

Formats: Online Learning

Table of Contents

Learning Objectives:

1. Understand the difference between consumer’s and producer’s risk regarding acceptance of materials;

2. Recognize the strength correction factors applied to core strength when determining equivalent in-place strength;

3. Identify reasons why it may be permissible to accept concrete with in-place core strength results less than the specified compressive strength; and

4. Know how to determine the number of cores for a sampling plan set up in accordance with ASTM E122, “Standard Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process.”


Any applicable errata are included with individual documents at the time of purchase. Errata are not included for collections or sets of documents such as the ACI Collection. For a listing of and access to all product errata, visit the Errata page.

Return/Exchange Policy

Printed / Hard Copy Products: The full and complete returned product will be accepted if returned within 60 days of receipt and in salable condition. A 20% service charge applies. Return shipping fees are the customer’s responsibility.

Electronic /Downloaded Products & Online Learning Courses: These items are not eligible for return.

Subscriptions These items are not eligible for return.

Exchanges: Contact ACI’s Customer Services Department for options (+1.248.848.3800 – ACICustomerService@concrete.org).