ACI May Newsletter Print

President's Report

The spring rains have slowed down construction especially for projects trying to get out of the ground. However, concrete work remains strong in Georgia and it doesn’t look like it will slow down any time soon. It is exciting to hear about so many big projects in metro Atlanta, Augusta and Savannah.

If you missed our April meeting, AJ Marisca gave a great presentation on metakaolin in concrete. It will be interesting to see how metakaolin use in concrete increases in Georgia due to our local access to this resource.

I hope you will join us at our next luncheon on May 25th. Our speaker, Jeff Speck with Trinity Lightweight, will be discussing lightweight aggregates in concrete. This meeting will be held at the Westin Perimeter North.

Best Regards,
Tom Pfeifer
Georgia Chapter ACI, President

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Luncheon Recap

We had a lunch meeting on Friday, April 27 at the Westin Atlanta Perimeter North hotel. We had a nice group of people in attendance. The presentation was given by AJ  Marisca, who is  the Regional Sales Manager for BASF Kaolin, responsible for the Big 10, ACC and SEC regions and involved in all aspects of industrial kaolin sales.

AJ covered the basics of chemical reactions for kaolin as an additive to cementitious materials in concrete (ASTM C618 N). It converts free lime in the process.  GDOT is currently doing a study at the University of Georgia on the kaolin additive.

Because of the processing an natural of kaolin, there is a great consistency in the kaolin from batch to batch and over a long time period, which makes it nice as an aesthetic additive to create a white concrete.  Several white concrete projects were shown and it works towards the LEED credit for heat island effects.

Other important aspects covered included strength, workability, and durability.  Plenty of data and examples were reviewed along with analytical data.

In closing, 2018 Vice President Justin Lazenby thanked AJ and everyone for their attendance. There were a number of questions and comments at the end.

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Our Next Event

On Friday, May 25 2018, The Georgia Chapter of ACI will host Jeff Speck at the Westin Atlanta Perimeter North hotel. 

Jeff Speck is General Manager of Marketing and Technical Sales for Trinity Lightweight, the nation’s leading manufacturer of rotary kiln expanded clay and shale lightweight aggregates, with production facilities in California, Colorado, Texas, Louisiana, Kentucky, Indiana, Alabama and Arkansas.  Jeff has over 40 years’ experience in the construction industry.

He is a Fellow of the American Concrete Institute, where he is a past president of the Georgia Chapter, the current chairman of Committee 122 on Energy Efficiency of Concrete and Masonry Systems, and Committee 213 on Lightweight Aggregates and Concrete, and is a member of Committee 216 on Fire Resistance of Concrete and Masonry. 

Jeff is a past Board Chairman of the Expanded Shale Clay and Slate Institute, the international trade association of the rotary kiln lightweight aggregate industry. He is a member of ASTM International, where he is a past chairman of Subcommittee C09.21, Lightweight Aggregates and Lightweight Concrete, and is a member of Committee C09 on Concrete and Aggregates, C12 on Mortars and Grouts for Masonry, C15 on Manufactured Masonry Units.  In 2007, he received the Award of Merit from ASTM International, which includes the title of Fellow.  He is a member of ASCE, and is also an active member of several other professional and industry organizations related to the concrete and masonry industries. 

From 1999 to 2014, Jeff was responsible for marketing, sales, and distribution of lightweight aggregate for Big River Industries in a market area covering 25 states, portions of Canada and the Caribbean. In 2015, Big River was acquired by Trinity Industries, where he is now responsible for Marketing and Technical Services in support of the national sales team.

Click here to register!

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Outside the Cylinder












“Yet More Concrete Boats…”

We have covered concrete boats before, but they keep surfacing for more scrutiny. This one is called “The Boat” (yes, really, or “Das Boot” in German…) and is located on the Santa Rosa Sound at Fort Walton Beach, Florida.  It is significant because in the year 2021 this 600 ton concrete vessel will be 100 years old!

The ship was built in 1921 as a U.S. Army transport operating on the Cape Fear River in North Carolina. Later, it served as a ferry from South America to the United States shipping bananas. Before World War II, it was moved to Biscayne Bay in Florida to be a casino and in 1941 was used as barracks for U.S. Coast Guard trainees in Wilmington, North Carolina. After the war, it was used by the U.S. Maritime Commission, and later as a seafood restaurant called the Fergus Ark.

In 1955, a U.S. Navy submarine hit it accidentally, while paying a courtesy call (not very courteous of them). In 1961 it was hit again, this time by the battleship USS North Carolina (which outweighed our concrete boat by more than a factor of 50!) while the battleship was being moved between berths.

In the 1960’s, after its collisions, it was moved to Tampa, Florida to become Lee’s Riverboat Restaurant.  Finally, in 1978, it was moved to Fort Walton Beach, where it remains.  “The Boat” has survived three hurricanes and the U.S. Navy, but is currently undergoing renovations inside and out.

 

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UGA Concrete Field Tech Certification

 GA Chapter ACI & GRMCA offer ACI Concrete Field Tech Certification to UGA Engineering Students 

On April 14, 2018 a group of our GA Chapter Certification examiners visited The University of Georgia to help administer the ACI Concrete Field Tech, Grade I Exam to 47 UGA Civil Engineering Students. The exam was a culmination of several weeks of concrete testing instruction and practical experience practice as part of Dr. Stephen Durham’s Civil Engineering Materials Class. ACI Examiner Wayne Wilson, Supplemental Examiners; Steven Maloof, Michael Legrand, Derek Brown, Donald Simmons, Dan Griffin and Gary Day all worked to shepherd all 47 students through the written and practical portions of the ACI Exam.

The exam is currently offered to the students at no cost through an industry education sponsorship by the Georgia Ready Mix Concrete Association and The GA Chapter ACI. ACI Certification is important to our industry and giving these young students exposure to that importance; and offering them a 5-year certification in concrete testing gives those who pass the exam a leg up after they graduate. This is the third year we have done this and the program has proved so popular that KSU is looking into offering asimilar program for their students in the Fall. Interaction with the students is also interesting and rewarding for us old folks as well, a great time was had by all involved.

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Concrete International Magazine Article

This month in Concrete International…..
Reprinted from the April, 2018 (V. 40 No. 4) issue of Concrete International with permission from American Concrete Institute (www.concrete.org)

Reinforced Concrete Antenna Pedestal

“ET…phone home !”  This article is on an antenna for the NASA Deep Space Network, which is designed to keep communications with spacecraft and probably “others”.

This article is about the evaluation of concrete consolidation, the repair design, and execution of the repairs.  Non-destructive testing and the interpretation of that data was central to developing the repairs due to concrete deficiency. 

Link to article: https://www.concrete.org/publications/getarticle.aspx?m=icap&pubID=51702288

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Calendar of Events

Saturday, May 12, 2018
ACI Field Tech, Grade I & Strength Tech Certification Exams
Thomas Concrete Lab
Atlanta, GA
7:30 am — 2:00 pm

May 19, 2018
ACI Flatwork Finisher Certification Exam
Argos SE Concrete Lab
Cumming, GA
7:30 am — 2:00 pm

Friday, May 25, 2018
GA Chapter ACI Monthly Lunch Meeting
Westin Atlanta Perimeter North
7 Concourse Parkway NE
Atlanta, GA 30328
11:30 am Registration
12:00 Lunch & Program

Saturday, June 2, 2018
ACI Field Tech, Grade I & Strength Exam Review Workshop
TEC Services, Inc.
Lawrenceville, GA
7:30 am — 2:00 pm

Saturday, June 9, 2018
ACI Field Tech, Grade I & Strength Tech Certification Exams
TEC Services
Lawrenceville, GA
7:30 am — 2:00 pm

Saturday, June 16, 2018
ACI Aggregate & Concrete Lab Tech Exam Review Workshop
TEC Services
Lawrenceville, GA
7:30 am — 2:00 pm

Monday-Friday, June 25-29, 2018
ASTM Summer Meetings
Sheraton San Diego
San Diego, CA
Information and registration at:
www.astm.org 

Saturday, July 7, 2018
ACI Field Tech, Grade I & Strength Exam Review Workshop
TEC Services, Inc.
Lawrenceville, GA
7:30 am — 2:00 pm 

Saturday, July 14, 2018
ACI Field Tech, Grade I & Strength Tech Certification Exams
Lehigh SE Concrete Lab
Doraville, GA
7:30 am — 2:00 pm

Saturday, July 14, 2018
ACI Tilt-Up Technician Certification Exam
Argos SE Concrete Lab
Cumming, GA
7:30 am — 2:00 pm

Wednesday-Friday, July 18-20, 2018
ACI Inspector Exams Review Workshop
TEC Services, Inc.
Lawrenceville, GA
8:00 am – 5:00 pm W & Th
8:00 am – noon Fr

Saturday, July 21, 2018
ACI Aggregate & Concrete Lab Tech Certification Exams
TEC Services, Inc.
Lawrenceville, GA
7:30 am — 2:00 pm

Important Note:  ACI Training & Exams are for Pre-registered Persons Only.
**No walk up seating available**

For Information on any of our exams or events go to: www.aci-ga.org

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