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Georgia Chapter ACI, Newsletter
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December Newsletter

December 2015: Issue 9


Inside This Issue...

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Upcoming Events


Friday, December 18, 2015
GA Chapter ACI Lunch Meeting
Annual Holiday Lunch Reception &
Changing of the Guard

Crowne Plaza Hotel, Atlanta Perimeter Ravinia
11:30 am Reception
12:30-1:30 pm Lunch

Meeting Information & Registration at:
www.aci-ga.org
 
Saturday, January 2, 2016
ACI Field Tech Grade I Training
TEC Services, Inc.
Lawrenceville, GA
8:00 am - 12:30 pm
 
Saturday, January 9, 2016
ACI Field Tech, Grade I Certification Exam
Lehigh SE Concrete Lab
Doraville, GA
7:45 am — 2:00 pm
 
Saturday, January 16, 2016
ACI Strength, Aggregate & Lab Tech Training
TEC Services, Inc.
Lawrenceville, GA
8:00 am – 2:00 pm
 
Saturday, January 30, 2016
ACI Field Tech, Grade I Certification Exam
Terracon Concrete Lab
Savannah, GA
7:45 am — 2:00 pm
 
Saturday, February 6, 2016
ACI Field Tech Grade I Training
TEC Services, Inc.
Lawrenceville, GA
8:00 am - 12:30 pm
 
Thursday, February 11, 2015
GA Chapter ACI
Dan R. Brown 2015 Awards Banquet

Crowne Plaza Hotel, Atlanta Perimeter Ravinia
6:00 pm Reception
7:00 – 10:30 pm Awards Banquet

Information & Registration at:
www.aci-ga.org
 
Saturday, February 13, 2016
ACI Field Tech, Grade I Certification Exam
Ready Mix USA Concrete Lab
Woodstock, GA
7:45 am — 2:00 pm
 
Saturday, February 20, 2016
ACI Strength, Aggregate & Lab Tech Exam
TEC Services, Inc.
Lawrenceville, GA
8:00 am – 4:00 pm
 
Friday, February 26, 2015
GA Chapter ACI Lunch Meeting
Formwork-What’s the big deal?
Daniel Toon, PE
Chief Engineer United Forming, Inc.

Crowne Plaza Hotel, Atlanta Perimeter Ravinia
11:30 am Registration
12:30-1:30 pm Lunch Meeting

Information & Registration at:
www.aci-ga.org
 
Saturday, February 27, 2016
ACI Masonry Field & Lab Tech Training
S&ME
Duluth, GA
8:00 am - 12:30 pm
 
Saturday, March 5, 2016
ACI Field Tech Grade I Training
TEC Services, Inc.
Lawrenceville, GA
8:00 am - 12:30 pm

Saturday, March 12, 2016
ACI Field Tech, Grade I Certification Exam
Thomas Concrete SE Lab
Doraville, GA
7:45 am — 2:00 pm
 
Saturday, March 19, 2016
ACI Masonry Field & Lab Tech Exam
S&ME
Duluth, GA
8:00 am – 1:00 pm
 
Important Note:  ACI Training & Exams are for
Pre-registered Persons Only.
**No walk up seating available**
For Information go to:
www.aci-ga.org

2015 Georgia Chapter Officers:

President:
Angela San Martin, P.E. 
Metromont

Vice President:
Wilbur Bragg II, P.E., CDT
T.Y. Lin International

Secretary:
Nadia Groome
GRMCA

Treasurer:
Ralph Hodgins
Retired

Board of Directors:

Kelly Roberts, P.E., LEED AP
Walter P. Moore

Gary Knight
Lehigh Cement

Tom Pfeifer, P.E.
Uzun & Case Engineers

Rick Tilson
Argos Ready Mix

Justin Lazenby
Thomas Concrete

 

Immediate Past President
Vance Robinson
ReadyMix USA

President's Message

The holidays are in full swing.

Last month we had Mr.
Steven Stokowski with TEC Services speak to us about the “Deterioration and Replacement of the Fore
River Bridge”. It was a
great presentation and very interesting.

This month we have our Holiday Luncheon. We will have our scholarship winners speak for a short time on the research they have been doing and how the scholarship has helped them.

Looking ahead we have the following on our calendar of events:

  • January – no luncheon.
  • February 11th – Awards Banquet – please remember to submit your project and attend this annual event.
  • February 26th – luncheon will be held at KSU and we will engage our student chapter. It will be a fun location, so please be sure to attend. The topic is “Formwork, what’s the big deal” by Daniel Toon with United Forming.                

As always, if anyone wants to sponsor a student at a luncheon or is in need of interns/new hires let me know.

Thank you for being a part of our group. Please spread the word to your colleagues about becoming members. Our chapter can only get better and it is through active participation.

I have truly enjoyed being your chapter president this year so thank you for allowing me to lead our wonderful group of members.

I hope everyone has a wonderful Christmas and New Year.
 
Angela San Martin - GA Chapter ACI President

December Meeting Recap


For the November 2015 meeting, Steven Stokowski, a Principal Petrographer with TEC Services in Lawrenceville, GA, spoke about “Deterioration and Replacement of the Fore River Bridge.” His presentation can be found here. 

The drawbridge, which opened in 1936, crosses the Fore River between Quincy and Weymouth, Massachusetts, along Route 3A which commuters use to get to Boston.  The short-span drawbridge would be opened for tall ships – from large commercial vessels to small private sailboats – to pass through the bridge.  

The drawbridge would frequently get stuck while open and would not lower.  In the meanwhile, traffic would be at a standstill.  In 1999 an investigation was started to determine the condition of the bridge and why it got stuck. The drawbridge mechanisms were believed to be the culprit.

Steven started by showing a photo of the 1936 opening of the bridge which was adjacent to ship yards in the industrial area. Also shown were photos of ships built in the ship yards in the first half of the twentieth century. Photos taken during the investigation showed the poor conditions of the bridge’s concrete. Some walls would be covered with ice because of the water that entered the concrete through cracks. Some of the bridge catwalks had bowed handrails that looked like boats were being moored to them; however, other handrails were bowed the opposite direction. The concrete piers were  moving and caused the bowing.  

Concrete coring investigation was somewhat restricted because the Massachusetts DOT limits cores to 4” diameter, but bigger diameters are desired for concrete with large aggregate.  The bridge was built with 1.5” to 2” natural gravel and non-air-entrained Type I and IV cement.  The water-cement ratio was  approximately 0.45. The core sample testing showed compressive strengths ranging from 2300 to 6900 PSI.

Petrographic analysis showed the concrete was being affected by expansive alkali silica reactivity (ASR). ASR gel appears as thin while layers in thin sections of concrete when observed under magnification. Steven showed several photos used in the petrographic analysis, describing what each one was showing. The concrete piers were moving due to the ASR, compressing the steel superstructure and causing it to bind. The drawbridge gear teeth were being sheared on one side, causing the drawbridge to be stuck open. An unexpected discovery was that the reinforcement had not deteriorated very much.  

The drawbridge was removed in 2001, and a temporary steel vertical-lift bridge is in place while a permanent and longer span drawbridge is being constructed.

Vice-President, Wilbur Bragg, closed the meeting by thanking everyone for their attendance. He also promised Steven that a GA Chapter ACI travel mug will be sent to him in appreciation for speaking. At the beginning of the meeting, Wilbur had wished everyone a wonderful and safe Thanksgiving holiday. (As you are reading this, the GA Chapter ACI wishes you a Merry Christmas and a Happy New Year.)

GA Chapter ACI 2015 Dan R. 
Brown Awards Banquet

Thursday, February 11, 2016


Dan R. Brown Concrete Project Awards Banquet, come join us for a celebration and networking event to review and honor outstanding GA Concrete Projects for 2015.

This is an annual event that has grown in size and scope over the years and has become a must attend event.

Opening reception will start around 6:00 pm followed by Awards presentations and Banquet at 7:30 pm.

Click here for more details about the banquet and project submission.

This Month in Concrete International....


 
 

This month in Concrete International…..
Reprinted from the December 2015 issue of Concrete International with permission from American Concrete Institute (www.concrete.org)
 
This month’s article; Winners of the Inaugural Excellence in Concrete Construction Awards, is a recap of ACI International’s first Concrete Project Awards program. ACI recognized 11 winners at the 2015 Excellence in Concrete Construction Awards Gala during the Concrete Convention and Exposition, November 9, 2015, in Denver, CO. Projects, submitted by an ACI Chapter or one of ACI’s International Partners, were judged by an independent panel of industry professionals based on architectural and engineering merit, creativity, innovative construction techniques or solutions, innovative use of materials, ingenuity, sustainability and resilience, and functionality.
 
As a Local Chapter we can submit two projects for consideration each year, your GA Chapter Awards Committee meet and choose the best two of our first place award winners. We did submit two projects this year but unfortunately our projects did not make the cut. 

Let’s hope we get some exceptional project entries this year that will warrant greater consideration for the next 2016 ACI International Awards.

December Meeting 12/18/15


Be sure and join us for our annual Holiday Lunch Reception and Changing of the Guard Meeting.  

Come meet your fellow members for our holiday reception & lunch to socialize and network, hear a brief work study recap from our 2015 GA ACI Scholarship Winners, thank our outgoing 
2015 Board Members and welcome our incoming 2016 Board Members. Click here to register today!


 
Copyright © 2015 Georgia Chapter ACI, All rights reserved.


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