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Georgia Chapter ACI, Newsletter
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May Newsletter

May 2015: Issue 4


Inside This Issue...


 
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Upcoming Events


Friday, May 22, 2015
GA Chapter ACI Lunch Meeting
Crowne Plaza Hotel, Atlanta Perimeter Ravinia
11:30 am Registration

Saturday, June 6, 2015
ACI Field Tech Grade I Training
TEC Services, Inc.
Lawrenceville, GA
8:00 am - 12:30 pm

Saturday, June 13, 2015
ACI Field Tech, Grade I Certification Exam
Ready Mix USA Concrete Lab
Woodstock, GA
7:45 am — 2:00 pm

Saturday, June 20, 2015
ACI Aggregate, Strength & Lab Tech Exams
TEC Services, Inc.
Lawrenceville, GA
8:00 am – 4:00 pm

Saturday, July 11, 2015
ACI Field Tech Grade I Training
TEC Services, Inc.
Lawrenceville, GA
8:00 am - 12:30 pm

Saturday, July 18, 2015
ACI Field Tech Grade I Certification Exam
Thomas Concrete Lab
Doraville, GA
8:00 am - 2:00 pm

Saturday, July 25, 2015
ACI Masonry Field & Lab Tech Certification Training
S&ME Laboratory
Duluth, GA
8:00 am - 12:00 pm

Saturday, August 8, 2015
ACI Field Tech Grade I Training
TEC Services, Inc.
Lawrenceville, GA
8:00 am - 12:30 pm

Saturday, August 15, 2015
ACI Field Tech Grade I Certification Exam
TEC Services, Inc.
Lawrenceville, GA
8:00 am - 2:00 pm

Saturday, August 29, 2015
ACI Masonry Field & Lab Tech Certification Exams
S&ME Laboratory
Duluth, GA
8:00 am - 2:00 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



 

2014 Georgia Chapter Officers:

President:
Angela San Martin, P.E. 
Metromont

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

Secretary:
Elizabeth Harwood
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 year 2015 is turning out to be an active one – I heard someone tell me there was a shortage of concrete… I don’t know if this is true but it isn’t that hard to believe with all of the projects going on in Atlanta and around Georgia.

Last month, we all enjoyed a discussion on insulated precast wall panels using carbon fiber wythe connectors and all of the sustainable benefits of using this panel. This month we will have a discussion on understanding and specifying CLSM – controlled low strength material – also known as “flowable fill”. Please be sure to attend.

The students at KSU (formerly SPSU) held their annual battering ram competition on April 24th. It was a fun event with some very active student participation. Thank you to all of our student members for participating and to our wonderful student advisor, Professor Daniel Kuemmerle. We had three battering rams this year with concrete donated from Hemma Concrete so we thank them for the donation. We plan to have this competition every year so please make it a point to support our student chapter. 

Obviously if you are receiving this newsletter you are a current member. We 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 hope everyone has a great month and we can’t wait to see you on May 22nd!

Angela San Martin - GA Chapter ACI President

 

April Meeting Recap

We had a very nice crowd at our April Lunch Meeting to hear Chapter Member and Concrete Awards Submittal Champion, George Spence give us a presentation on Thermal Efficient Carbon Fiber Reinforced Precast Walls.  George opened with some general information on who Metromont was and some very interesting details on their precast facility in Hiram, GA.  The daily volume of concrete produced and the state of the art waste concrete recycling facility they operate there was very impressive.  He continued with a brief mention and showed us examples of some local and unique precast elements; the precast art cubes at the Pace Gallery in NYC and George’s total precast house were really cool.


Following his intro, George showed us how the industry ASHRAE Code Requirements have gotten increasing more stringent with ever increasing thermal improvements since 1975.  In 2013, ASHRAE 90.1 added a definition of Continuous Insulation, “insulation that is uncompressed and continuous across all structural members without thermal bridges other than fasteners and service openings”.  He went on to talk about many of the challenges in obtaining a continuous insulation wall system using traditional wood and steel frame construction.  Using carbon fiber grid technology to build insulated precast concrete wall panels works very well as the carbon fiber works to reinforce the structural panels without creating a thermal bridge.  George showed use some detailed construction techniques they use in Hiram to produce the panels and shared some technical data on the carbon fiber strength and the resulting thermal efficiencies realized in the wall panels.

George closed with some project specific examples of how these thermal panels are being put to use.  He had some very detailed information and case history energy use information from Gwinnett County Schools that was very impressive.  The Georgia State Student Housing building example was most interesting to me as I have a personal connection to this building; my son Thomas is a student at GA State and currently resides there.  Vice-President, Wilbur Bragg, closed the meeting by thanking everyone for their attendance and making the GA Chapter Speaker travel mug presentation. 

 

UGA Student Scotty Smith 2015-2016 ACI Baker Student Fellowship

Congratulations to UGA Student Scotty Smith, who was just awarded a $3500 ACI Student Fellowship. Scotty was also a scholarship winner from the Ga Chapter ACI in 2014. All ACI Foundation Fellowship applicants must be nominated by a faculty member who is also an ACI member before the student is able to receive an official application.  The student must be considered a full-time undergraduate or graduate student as defined by the college or university during the award year. Applications will be accepted from anywhere in the world but study must take place in the United States or Canada during the award year.  All applicants must be proficient in the English language.  If English is not your native language, a written statement must be attached to the application attesting to this proficiency.  Potential applicants must submit:

    A Completed 2015-2016 application form
    A Resume
    A 500 Word Essay
    Two Online Reference Forms
    Official Transcripts

If chosen Fellowship Winners must also agree to attend Sunday of the Spring 2015 ACI Convention to be interviewed, serve a 10 to 12 week internship and submit a final report to ACI about their experience.

KSU Student Chapter Holds Annual Battering Ram Competition

Several students and faculty showed up at KSU’s Civil Engineering Building on Friday April, 24, 2015 to participate and witness their annual battering ram competition.  Three rams were entered in the contest.  Previously constructed 4" thick by 48" x 48" square concrete slabs were used as targets for the three entered concrete battering rams.  Student Chapter Advisor Daniel helped the students build a new ram frame for the event this year as the old one "walked away" during the SPSU / KSU Facilities transfer...not sure what happened?  The concrete was donated by Hemma (and Argos).  Student Evan Whatley constructed the winning ram, using an 8" Sonotube and a flower pot; a good time was had by all. 

Click here to view pictures
 

This Month in Concrete International...

Reprinted from the May 2015 issue of Concrete International with permission from American Concrete Institute (www.concrete.org)

  
Having seen several recent mass concrete applications at the new Falcon’s Stadium thought this article Nomogram for Maximum Temperature of Mass Concrete might be interesting to some of our members… Understanding and predicting the thermal behavior of mass concrete can help designers and contractors reduce the probability of crack formation, thus helping to ensure concrete durability. However, reliable simulation models are rather impractical to implement for preliminary investigations, which demand quick calculations. From a practical perspective, rough estimates of mass concrete temperature could be used to guide preliminary mixture design while avoiding complicated calculations. The nomogram developed by the authors allows predicting a preliminary estimate of the maximum temperature achieved in mass concrete structures by taking into account mixture composition and ambient conditions. It is also available as a mobile app in both SI and U.S. customary units.
 

May Meeting 5/22/15


Join us for our March Luncheon with a presentation from Jason Wimberly on Controlled Low Strength Materials. Click here to register today!
Copyright © 2015 Georgia Chapter ACI, All rights reserved.


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