Newsletter nebraska chapter american concrete institute PO Box 5144 68505 www.acinebraska.org ACI Nebraska Representa ves A end Fall Conven on Steve Wobken and Jereme Montgomery a ended the ACI Fall Conven on held in Pi sburgh from October 24-28. There were approximately 1500 a endees and a full schedule of commi ee mee ngs and educa onal sessions. Steve is an associate member of technical commi ee s 130 and 330. Jereme is an associate member of 332 and 522. They were able to a end a number of the mee ngs and presenta ons with a few being as follows: ACI 130-Sustainability. Steve Wobken currently sits on three sub-commi ees and is an associate member of the main commi ee. The primary focus of this group is to produce a final document. A great deal of progress has been made, but we s ll have a fair distance to go. The goal is to have all chapters completed and balloted by the sub-commi ees by the next conven on. This would allow nega ve comments to be addressed at the next conven on and submit a complete document to the Technical Advisory Commi ee a er the Tampa Spring Conven on. Volume XXIII Issue No. 4 NOVEMBER 2010 www.acinebraska.org We also had Lisa Jin Bradley with AECOM give an update. Lisa is a toxicologist who was working with Dick Stehly on the EPA Fly Ash ruling. She stated that the ruling has become primarily poli cal. The EPA is s ll considering making Fly Ash a hazardous material under sub tle C if it is to be land filled. Fly Ash designated for beneficial use such as in concrete will be covered by a sub tle D classifica on and be non-hazardous. The main issue is sub tle C allows the EPA to control disposal whereas sub tle D allows the states to regulate disposal. More FALL CONVENTION... page 6 President Steve Wobken Reminds of Upcoming ACI Nebraska Chapter Opportuni es The Holiday Season is fast approaching. That means that several chapter opportuni es are coming up. Michael Gerdes is bringing his breakfast seminar series to a close and focusing on the Annual Banquet. More details will be coming out but several awards are again up for grabs. Larry Schmidt and Jereme Montgomery are again looking for Award of Excellence submi als. If you have a concrete project you feel is worthy of recogni on, please fill out the applica on explaining what makes them unique or innova ve and submit it. The applica on does not take long and the more pictures you have to support it the be er. Check out our website for all the info and you too could take home a pres gious award! While you are at the website take a moment to check out the Tom Reading Award. This award goes to an individual who has made an impact in our industry by advancing or teaching technology. If you have someone in mind feel free to nominate them to the awards commi ee. Scholarships are also available to students par cipa ng in engineering, construc on, or technology programs working towards a career in the field of concrete construc on or design. If you know someone who fits this descrip on, and could use some money for college encourage them to apply. It s always an elec on year at ACI Nebraska. Watch you mailboxes for ballots and be sure to vote. The slate of officers is set and will be coming your way. Thank you for everyone s par cipa on and I look forward to seeing you at upcoming chapter ac vi es!
Nebraska Chapter ACI page 2 printed quarterly by American Concrete Institute Nebraska Chapter Chartered, December 1987 President President Elect Vice President Secretary Treasurer Past President Execu ve Secretary Officers Board of Directors Steve Wobken Michael Gerdes Larry Schmidt Jereme Montgomery Mike Willman Bob Irwin Richard T. DeLorm Larry Schmidt 2010 Randy Lane 2010 Aaron Luth Joseph Menard Joel Sedlacek 2012 Dale Kisling 2012 Visit Our Website at www.acinebraska.org Webmaster Jill Reeves jillreeves@cox.net Executive Secretary and Newsletter Editor Richard T. DeLorm rdelorm@msn.com Phone 402-466-3948 Executive Secretary s Report I have been with the ACI Nebraska Chapter since it s inception in 1988. When the chapter was chartered we had a membership of 46 members. Within the next year our membership rose to over 200, thanks to the efforts of our first Membership VP and his band of dedicated recruiters. We were then able to apply for incorporation as a non-profit Corporation in Nebraska and accepted by the Post Office to mail at a non-profit rate. We have used this status to run the ACI Chapter ever since. Our Chapter continued to grow and we reached a membership of over 350 members. Then our membership began to decline and we have been on a downward slide for the past three years. Some have speculated that the decline was due to a bad economy. In any case, we are approaching a level of membership that we may lose our non-profit mailing status. The solution to this problem is to recruit new members or get back the members who have dropped from the rolls. Our membership is very diverse as was pointed out by the Membership Report from the last newsletter. Membership costs are $30 per year for regular associates and $5 for current students, a small cost for membership in one of the countries best ACI Chapters. We have been and continue to be an award winning ACI Chapter, the envy of most of the chapters in the nation. Dr. R.T. DeLorm
Nomination Committee Report Nebraska Chapter ACI (American Concrete Ins tute) Slate of Officers Nebraska Chapter ACI page 3 Mark Your Calendars! President: Michael Gerdes Thiele Geotech Omaha, NE President Elect: Tim Hegeholz Ash Grove Cement Company Seward, NE Vice President: Secretary: Treasurer: Past President: Execu ve Secretary: Jereme Montgomery NC&AA Joseph Menard Lamp, Rynearson & Associate Omaha, NE Michael L. Willman W.R. Grace Construc on Products Fremont, NE Steve Wobken Ash Grove Cement Company Dr. Richard T. Delorm ACI Nebraska Chapter Nebraska Chapter ACI (American Concrete Ins tute) 2009 Board of Directors Aaron Luth () Tony Roberts (2013) Consolidated Concrete CXT Omaha, NE Grand Island, NE Dale Kisling (2012) Joel Sedlacek (2012) Nebraska Ash Lafarge Cement Company Omaha, NE Kevin Piper (2013) Dick Odell (2013) Paulsen Inc Odell Concrete Placement Inc. Cozad, NE ACI Nebraska Chapter to Hold Annual Meeting and Awards Banquet February 12, The ACI Nebraska Chapter annual meeting and Awards Banquet will be held February 12, at the Thompson Alumni Center on the UNO Campus in Omaha. For 30 years, the William H. & Dorothy Thompson Alumni Center has been one of Omaha s most popular banquet facilities and conference centers, highly regarded for its elegance, sophistication and affordability. Watch your mail and email for more information about the upcoming event. When informaiton becomes available, you can also fi nd updates at www.acinebraska.org
Nebraska Chapter ACI page 4 Technical Committee Report Submi ed by Mike Willman 2010 - Training Schedule Class Date December 14, 2010 Location Norfolk December 15, 16, 2010 Norfolk January 4, January 5, 6, January 18, Omaha January 19, 20, Omaha Cer fica on Training Schedule Now Available Online! February 1, February 2, 3, North Platte North Platte The 2010- ACI/NDOR training season is set with over 10 classes scheduled for this season. We an cipate full classes this training season, so please register for training classes as soon as possible to assure the classes desired. The training calendar on the NC&AA website keeps current with class availability. The Cer fica on programs are a joint effort with the ACI Nebraska Chapter, The Nebraska Department of Roads and the Nebraska Concrete & Aggregates Associa on (NC&AA). Plant Technician, I Plant Technician, I Plant Technician, I April 19, April 20, 21, March 15, 16, 17, March 22, 23, 24, March 29, 30, 31, Kearney Kearney North Platte Norfolk To register for the classes contact Rochelle Hitz at 402-325-8414 or Leon Schaefer at 402-440-1001 or Register online, or download a registra on form at www.nebrconcagg.com ACI Strength Testing Technician ACI Strength Testing Technician ACI Concrete Flatwork Finisher Technician February 18, March 18, April 5-6,
Nebraska Chapter ACI page 5 Nebraska Chapter ACI Board of Directors Mee ng Minutes October 12, 2010 A ending: Bob Irwin, Steve Wobken, Jereme Montgomery, Dick DeLorm, Bill Cook, Michael Gerdes, Mike Willman, Joel Sedlacek, Joe Menard, Tony Roberts Mee ng Commenced: 7:42am Opening Remarks: Recogni on of An -Trust Statement Approval of Past Minutes: Reviewed mee ng minutes from September 14th, 2010. A mo on was made and a second to approve mee ng minutes of September 14th, 2010. Treasurer s Report: Chapter has approximately $400 to be deposited. Account payables are current and paid. Mo on was made and seconded to approve financial statements. Execu ve Secretary s Report: ACI Computer has been corrupted. Emails have been presently shut down. Need to look into new computer and updated so ware. Commi ee Reports: Awards (Schmidt, Montgomery, Sedlacek, Kisling): Looking to send out no ce of awards and will be sent out next week. Jereme to talk to Jill about mailing lists and email lists. Gerdes to select loca on of awards banquet. Educa on (DeLorm): Scholarship applica ons and posters have been sent to UNL, UNO, SCC (Milford). Scholarship has also been promoted within ACI and NC&AA membership electronically. Goal to receive 12 applica ons. Libraries (Montgomery): Recent adds 305R-10 Guide to Hot Weather Concre ng, 332-10 Residen al Code Requirements for Structural Concrete, 357.2R-10 Report on Floa ng and Floatin Concrete Structures, 548.10-10 Specifica on for Type MMS Polymer Overlays for bridge and parking garage decks, SP-271CD Structural Concrete in Performance-Based Seismic Design of Bridges. Membership (Gerdes/Willman): No Report Newsle er (DeLorm): Chapter needs to have a newsle er for November to communicate the new slate of officers. Newsle er ar cles are due November 1st, deadline to send final newsle er to membership, November 15th. Nomina ng Commi ee (Bob Irwin): Need to replace 3 board members and replace Dale s posi on for 2 months. A mo on was made and seconded for Larry Schmidt to replace Dale for the remainder of the year. Programs (Gerdes): There was lack of communica on for mailing hard copies of Last months program. Only emails went out. Steve Weidenhammer spoke on a tes ng laboratory s review of airport pavments. Next program is on freeze thaw durability of concrete, set for November 2nd. Jereme Montgomery and Micheal Willman to present. Programs Golf (Menard): No Report Public Rela ons (Lane/Schmidt): No Report Technical (Willman/Luth): Willman will meet NC&AA by end of month to schedule winter cer fica on programs. Dates will be confirmed over the next couple of weeks. Sustainability (Wobken/Luth/Montgomery): ACI 130 will be mee ng in Pi sburg for ACI Fall Conven on. Montgomery and Wobken will a end. Website (Willman/Irwin): Educa on has been updated Liaisons: ACI Interna onal- Wobken and Montgomery will represent ACI-NE in Pi sburg for ACI Fall Conven on. NC&AA- Held scholarship fund shoot on Sept. 24th in Grand Island. 65 par cipants. Quality Concrete Conference is being held January 12th (Kearney) and January 13th (Omaha). Theme for QC conference is Concrete in Prac ce. NCPA- Looking to hold an open house in North Pla e to look at paving opera ons. January 26-27th are the dates set for Paving Workshop. NCPA and NC&AA to send event no ces for ACI newsle er. PCA North Central Region-No Report ASTM- No Report Old Business- No Report New Business- Chapter needs to start working on membership directory. Mee ng to be switched every other month to York. End of Mee ng: A mo on was made, seconded and approved to dismiss at 8:45am
Nebraska Chapter ACI page 6 FALL CONVENTION... continued from Page 1 The EPA has stated that they do not believe that taking fly ash to a sub tle C classifica on will affect the industry in any way. There has been a reported case of a school in California refusing the use of fly ash in their concrete. Everyone should be aware of these possibili es and report such cases to the EPA. So far the Sierra Club and other environmental groups have done a be er job of wri ng le ers to support their posi on. Our industry needs to match their intensity and write le ers to support our posi on. We have the facts and data on our side, but could s ll lose based solely on the wave of le ers against fly ash and ul mately the coal industry. Follow this link to submit your own le er to support fly ash use - h p:// www.recyclingfirst.org/form.php. Le ers and comments are due by November 19th. commi ee to become the ACI 329 document. This group will be looking at other performance standards around the world and present guidelines to wri ng performance based specifica ons. ACI 330-Parking Lots and Site Paving. A endees shared success stories and updates. Two of interest were a North Carolina promo on group successfully converted the parking lot of an asphalt supplier to concrete. Also Jerry Holland reported on projects that he is working on where the joint spacing has been pushed to 40 feet on six inch pavement with the use of macro-polymeric fibers. The commi ee is also working on two documents currently under development; revising 330.1 Standard Specifica on and crea ng 330.xR Guide for the Design and Construc on of Concrete Pavements for Trucking and Industrial Facili es (new). ACI 332-Residen al Concrete. This group has just completed a document revision and has now turned their a en on to the guide document. Jereme Montgomery brought his sugges on to change the durability requirements from a minimum strength of 4500 psi and 0.45 w/cm ra o to an average strength of 4500 psi and 0.45 w/cm ra o, this would be more in line with a minimum compressive strength (f c) of 4000psi. Jereme feels if the building code (318) requires 4500 and 0.45 then should driveways (non-structural) have the same requirements? It created some interes ng discussion but ul mately the group felt with driveways scaling and failing it would not be good to lower standards. ACI 332 did make a mo on to include a sec on within 332 to include exterior slabs. The current document on includes exterior requirements under the materials chapter. This addi on to include verbiage of exterior may be be er received by trades. In a separate session presenta on dealing with the carbon footprint of the US cement and concrete industries fly ash was also discussed. Julie Rapoport with CalStar Cement Products, did a good overview of the impact of our industry and the goals and projec ons of mi ga on. The biggest opportunity the cement and concrete industries have to mi gate CO2 is through increased use of fly ash. Mi ga on efforts from 1995 2005 show a reduc on of 200 million metric tons of CO2 versus if business had con nued as usual. With increased fly ash use another 200 million tons could be reduced by 2020 and another 1.7 Billion tons by 2050. If fly ash is taken out of the equa on, these numbers will be increases of 180 million tons by 2020 and 1.55 Billion tons by 2050. Other means of reduc on the industry is considering are finding natural pozzolans, and renewable energy sources. ACI 329-Perfomance Ready Mix. This is a new commi ee which began with the NRMCA P2P ini a ve. Currently a document has been wri en called the ITG 8 Report. This document will be balloted to the members of the ACI 522-Pervious Concrete. The commi ee discussed accurately measuring core thickness for pervious concrete. A task group has been formed and is inves ga ng proper methods and standards to measure the thickness for pervious cores. The commi ee is also working on revising 522.1 pervious specifica on to include current standards and prac ces. Another key topic from the commi ee is standardizing details for pervious concrete. Conclusion ACI technical documents are dynamic. They change over me with the input from commi ee members to define and refine current standards and guidelines. Steve and Jereme both feel that ge ng involved with technical commi ees is a cri cal part of being an ACI Na onal Member. By applying for commi ee membership they are able to be on the forefront of upcoming changes to technical documents, therefore, being able to communicate these changes sooner to ACI NE membership.
NCPA to Host Concrete Paving Workshop Submi ed by Bill Cook, P.E. NCPA Execu ve Director Each year ACI-Nebraska and the Nebraska Concrete Paving Associa on sponsor the Concrete Paving Workshop. The Workshop will be held on January 26-27,, at the Cornhusker Marrio in, Nebraska. We have a wide range of topics, including: Reports from the Nebraska Department of Roads, the Federal Highway Administra on, and the Nebraska Department of Aeronau cs Reviews of concrete overlays in Nebraska and other states The annual Concrete Paving Awards Ceremony for the best concrete paving in Nebraska in 2010 A review by Steve Weidenhammer of materials tes ng at the Eppley Airfield runway and taxiway rehabilita on Many technical topics of interest in the concrete paving community The Board of Examiners for County Highway and City Street Superintendents has approved up to eight hours of professional development hours for those needing the hours for recer fica on. Cer ficates will be awarded for each session a ended. The program also qualifies for eight hours of PDHs for professional engineers. A cer ficate will be available for engineers to use for documen ng their training. And the Cornhusker Marrio serves excellent meals. Come join us on January 26-27 for an informa ve and enjoyable educa onal experience. Nebraska Chapter ACI page 7 Program Committee Report Submi ed by Michael Gerdes ACI Nebraska s Fall Breakfast Series Offer Informa ve Sessions The fall breakfast series has included two excellent presenta ons so far. Mr. Steve Weidenhammer, P.E. of Thiele Geotech presented a tes ng laboratory perspec ve on the reconstruc on and addi ons of runways and taxiways at Eppley Airfield in Omaha, Nebraska. Eppley Airfield has seen major construc on ac vi es in both 2009 and 2010. Jereme Montgomery of the Nebraska Concrete and Aggregates Associa on and Michael Willman of Grace Performance Chemicals co-presented on freeze-thaw durability of concrete. The durability presenta on focused on scaling. The long harsh winter of 2009-2010 certainly took its toll on pavements in Nebraska and our surrounding states. Both presenta ons included in depth ques on and answer sessions. Next Mee ng to Feature LCC Our next breakfast mee ng will be on research on Low Carbon Concrete (LCC) and its significantly reduced CO2 footprint, with increased strength and improved durability. The Low Carbon Concrete (LCC) presenta on is being planned for late November or early December. The Annual Banquet and ACI Nebraska Chapter Awards of Excellence Presenta on is in the works for early February of. The date is scheduled for February 12, and the program will commence at approximately 7:00 pm. The event is scheduled at the Thompson Alumni Center on the University of Nebraska at Omaha campus (see page 3 of this newsle er for more about the venue). Ample parking will be available at no cost in close proximity to the event center. More details with a reserva on le er will be mailed and emailed a er the New Year. Scholarships for undergraduate and graduate students will be presented at our February Annual Banquet. Please see the ACI Nebraska Chapter website (www.acinebraska.org) for informa on on scholarships available. We are always looking for general ideas, topics, field trips, and presenters for our breakfast seminars. Please call or email me with your thoughts for presenta ons and or field trip sites. I can be contacted at either (402) 556-2171 or mgerdes@thielegeotech.com.
nebraska chapter american concrete institute PO Box 5144 ~ 68505 Non-Profit Org. U.S. Postage PAID Permit No. 828 RETURN SERVICE REQUESTED Newsletter Editor R.T. DeLorm (402) 466-3948 Progress through Knowledge The Nebraska Chapter of the American Concrete Institute announces its 19th Annual Concrete Awards Program The purpose of this competition is to recognize outstanding work in concrete construction and practices and/or applications within the State of Nebraska. Noteworthy projects that highlight special uses or innovative construction techniques will be recognized. To obtain an entry form, please print one from the ACI-Nebraska website. The address is: www. acinebraska.org Mail all entries to: ACI Awards Committee c/o Jereme Montgomery Nebraska Concrete & Aggregates Association 6000 Cornhusker Hwy., 68507