On-Demand Course: Concrete Consolidation in the 21st Century

Price: $ 39.00 USD

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The contents of this course include three recorded presentations from the ACI 2016 Spring Convention:

• Consolidation: A Little More than Just Putting a Vibrator in Concrete, by Eamonn F. Connolly, James McHugh Construction Company

• Concrete Properties, Placement Techniques, and Consolidation—How They Interact by Joseph A. Daczko, BASF

• Stability and Retention of Entrained Air in Vibrated Concrete by David A. Lange, University of Illinois

INSTRUCTIONS: 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 and ICC

Access Period: 30 days


This course shows how consolidation needs to be reconsidered for modern twenty-first century concrete mixtures. The presentations show the influence of concrete proportioning and workability on the consolidation energy necessary to successfully place concrete structures. The course will describe various issues concerning proper vibration and consolidating concrete that lead to consolidating concrete successfully and some problems that occur under poor consolidation. There will be a focus on flowable concrete and methods to consolidate properly. Examples will be given of uses of self-consolidating concrete in otherwise hard-to-consolidate members that were successfully placed with few imperfections and little segregation.


Document Details

Publication Year: 2017


Categories: Aggregates, Concrete Technology, Consolidation, Mixture Proportioning

Formats: Online Learning

Table of Contents

Learning objectives:

1. Explain the interaction among concrete proportioning, workability, and the amount of required consolidation energy necessary to successfully place concrete in various forms.

2. Identify other placement parameters that interact with the consolidation process to affect concrete workability negatively and positively.

3. Describe how different types and portions of sand and coarse aggregate interact with the consolidation energy needed to successfully place concrete

4. Describe examples of new concrete technologies that influence the consolidation process, such as higher-vibration vibrators and external vibrators.


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).