November 2019 Newsletter Print

Our Next Event


On Friday, November 22, 2019, The Georgia Chapter of ACI and the Atlanta chapter of ICRI will host Aisyah Abdkahar, Terry Vines, and Brian Wolfe at the Westin Atlanta Perimeter North hotel. 

The presentation will be “Aggregate Issues in Concrete: What happens if “bad” rock is used in concrete?”.  Deleterious aggregates can lead to expensive and unsafe deterioration in concrete, but this can often be prevented or mitigated with pre-emptive evaluation and testing. This presentation will discuss the quarry site inspection and laboratory tests necessary to prevent the use of deleterious aggregate and/or mitigate the effects.  In addition, concrete distress from unsound aggregate, alkali-aggregate reactions (ASR and ACR), and pyrrhotite aggregates will be discussed.  Finally, we will discuss how to look for indications of possible aggregate related distress in the field, the evaluation techniques necessary to confirm the cause, and the suitable repair options.

Presentation Speakers:

This presentation is a collaborative effort of the Geologists, Engineers, and Petrographers at SGS TEC Services, represented by speakers Aisyah Abdkahar, PG, Terry Vines, PG and Brian Wolfe, PE. 

Aisyah Abdkahar, PG comes from a hard rock geology background, having conducted mineral exploration of gold, copper, silver, and other precious metals. Her work has brought her across North America, including Alaska, Yukon, NWT, Manitoba, and Ontario.  Aisyah joined SGS TEC Services in 2015 where she is now a senior geologist and petrographer performing evaluations of aggregates and concrete. These days you will find her combing through sulfides in aggregates and dreaming of finding some precious metals when she isn’t home chasing after her 18 month old daughter. Aisyah holds a B. Sc. in Geology from the University of Manitoba in Canada and is a licensed professional geologist in the state of GA. Aisyah currently serves as Task Group Chair of ASTM C295/C294 Aggregate Petrography at ASTM C09.50.

Terry Vines, PG has over 50 years of experience in the geologic and concrete industry, and rock and fossil collection habit that has exceeded the size of his garage.  Terry is has extensive experience in concrete mix design, aggregate and concrete petrography, quarry exploration and evaluation, and forensic evaluation of concrete deterioratoin.  Currently Terry is a Principal Petrographer for SGS TEC Services, but he is likely most well-known for his 30 years as a concrete petrographer and quality assurance manager with Argos/Lafarge.  Prior, Terry’s career included many years performing geotechnical explorations for various companies and a long stint with Parsons Brinkerhoff providing consulting on the construction of the MARTA heavy rail transit system. 

Brian Wolfe, PE is a Principal Engineer and Concrete Petrographer with SGS TEC Services.  Born and raised in northern Illinois, Mr. Wolfe is a tortured Chicago Bears fan, a father of 3, and a graduate from the University of Illinois in Champaign-Urbana.  Mr. Wolfe’s 18 year career in the engineering field has included structural evaluations, repair design, nondestructive evaluation, forensic engineering, materials testing, chemical analysis interpretation, and petrographic evaluations of concrete.  Mr. Wolfe’s specialty experience of petrographic evaluation has encountered many projects in which the aggregate used caused significant concrete deterioration.

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Scholarship Clay Shoot

Scholarship Fund Sporting Clay Shoot
Friday November 15, 2019

Etowah Valley Sporting Clay Park
Dawsonville, Georgia

This will be the fourth annual shooting event in the chapter’s history! We can all get together, enjoy the beautiful fall weather, SHOOT FLYING OBJECTS, then have a nice lunch!

Registration begins at 7:30am
Shotgun Start at 9:00am

Cost: $125.00 per Shooter

Includes firearm rental (or you may bring your own gun), 100 clays at over 14 stations, golf cart and lunch! Prizes for 1st and 2nd place teams!

Stand sponsorships are available for $350. Space will be limited to 56 Entries!

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ACI Awards

ACI Georgia Chapter – Dan R. Brown Awards

Save the Date
Friday February 28, 2020

Westin Atlanta Perimeter North

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Luncheon Recap



On Friday, October 25, 2019, The Georgia Chapter of ACI hosted Paul Ramsburg, who is the Technical Sales Specialist for the Sika Corporation, at the Westin Atlanta Perimeter North hotel. 

The program was a very interesting reflection on the history of concrete from ancient and prehistorical times to today.  Several interesting related topics such as concrete ships, colored concrete and admixtures were also incorporated into the story.  It included an entertaining review of some of our industry's successes and a few failures.

Paul is the Technical Sales Specialist for Sika Corporation and his presentation was very interesting and entertaining.

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Concrete International Magazine Article

Concrete International Article






This month in Concrete International…..

Reprinted from the November, 2019 (V. 41 No. 11) issue of Concrete International with permission from American Concrete Institute (

Getting the Band Back Together

This article tells the story of re-establishing the New England Chapter of ACI.  Something unusual for an article and a rest from the technical.


Link to article:

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