ACI Webinar / The Maturity Method

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There are a lot of reasons to attend a webinar such as convenience, CEUs, learning from experts and affordability. On September 13th ACI will be presenting a webinar that will focus on real-time concrete strength monitoring based on the maturity method. The webinar will be presented by concrete experts Aali Alizadeh and Walter Flood IV.


The strength monitoring of concrete in the job site is a critical step in the optimization of important operations such as formwork removal, opening traffic on the concrete pavement, post-tensioning, concrete curing, and application of load of concrete elements during construction. In most projects, field-cured cylindrical specimens are cast on the job site and are tested in laboratory at various times to monitor strength. Among various NDT methods for in situ measurement of strength, the concrete maturity method has been adopted by many standards and building codes worldwide. As per specifications in the ASTM C1074 standard, this method requires continuous monitoring of concrete temperature after pouring, and subsequently strength estimation using a pre-developed calibration curve. A successful implementation of this test method in construction projects can significantly improve the speed and efficiency in order to avoid delays in project completion time.

In this webinar, the basic concept of concrete maturity will be presented. Various methods of testing concrete maturity including the Nurse-Saul, Arrhenius, and Weighted Maturity will be reviewed. Different testing apparatus, sensors, and tools used for concrete maturity testing will be demonstrated. Application challenges, limitations, and important practical considerations will be discussed. Various examples, applications, and case studies will be presented.

Learning objectives:

  1. Calibrate the maturity-strength relationship of a concrete mixture in the laboratory.
  2. Test, measure and calculate concrete maturity index in the field.
  3. Estimate real-time concrete strength non-destructively in situ for critical structural operations.
  4. Predict concrete strength on the job site for optimized project planning and scheduling.


To earn CEU (PDH) credit, individuals must purchase the webinar and attend the live webinar for the entire duration (or pass the quiz available after the webinar).

Presenters Bio:

Dr. Aali R. Alizadeh, PhD, P.Eng. | ACI Committee Member 236 and 241

Dr. Alizadeh is the CEO of Giatec Scientific Inc. and an adjunct professor at the University of Ottawa. He has more than 15 years of academic and industrial experience in the research and development of non-destructive concrete testing technologies, devices and sensors. Dr. Alizadeh received his PhD degree in Civil Engineering from the University of Ottawa. His research has resulted in the publication of more than 70 journal and conference papers and has been recognized by several awards including the Governor General’s Academic Gold Medal.

Walt Flood IV, M.S., P.E., Flood Testing Labs, Inc. | ACI Committee Member S801, 302, 327, 363, 522

Mr. Flood is assistant engineer at Flood Testing Labs, a leading materials testing and inspection firm in Chicago. The company has been using maturity to assess in-place strength since the mid-1970s and has recently provided assistance to contractors with maturity monitoring for projects in Nashville, St. Louis, an Miami. Mr. Flood has more than 15 years of experience working with concrete testing and monitoring in the Chicago market. He is a member of many ACI Committees, including Committee 363, an active member and sub-chair of ASTM C09, and has presented both locally and nationally at ACI on testing methodology.

Webinar Coupon Promotion:

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Where to Sign Up:

Through the ACI University, you can participate in the Webinar and earn CEU/PDH credits! Both live and recorded versions offer continuing education credit.

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Add the Date to Your Calendar:

The webinar will be live on September 13th 2016 from 13:00 to 14:00.

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