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May/June 2021Vol. 34, No. 3CONCRETE REPAIR BULLETINPOST-TENSIONSYSTEMEVALUATIONAND REPAIR
Concrete Repair Bulletinis published bimonthly by the:International Concrete Repair Institute, Inc.1000 Westgate Drive, Suite 252St. Paul, MN 55114www.icri.orgFor information about this publication or aboutmembership in ICRI, write to the above address,phone (651) 366-6095, fax (651) 290-2266, oremail info@icri.org. The opinions expressed inConcrete Repair Bulletin articles are those ofthe authors and do not necessarily representthe position of the editors or of the InternationalConcrete Repair Institute, Inc.May/June 2021Vol. 34, No. 3CONCRETE REPAIR BULLETINFEATURES14ISSN: 1055-2936Copyright 2021 International Concrete RepairInstitute, Inc. (ICRI). All rights reserved.EditorJerry PhenneyDesign/ProductionSue PetersonExecutive DirectorEric HauthAssociate Executive DirectorGigi SuttonTechnical DirectorKen LozenChapter RelationsDale RegnierCertificationDale RegnierConventionsSarah EwaldSponsorship/Ad SalesLibby BaxterMarketingRebecca WegscheidICRI Administrative Committee ChairsICRI Board of Directors & Executive CommitteePresident Elena KessiAquafin Building Product SystemsAwardsKenny HopfenspergerEvonik CorporationCertificationTom DonnellySika CorporationChaptersMichelle NobelMAPEI CorporationConventionsIngrid RodriguezIngrid Shawn Corp.CoordinationJohn McDougallBaker Roofing Co., Inc.EducationBryan HeeryEverclear Enterprises, Inc.FellowsPeter Golter3MFinanceBrian MacNeilKryton International, Inc.MarketingEd KluckowskiFreyssinet, Inc.MembershipAdam HibshmanValcourt Building ServicesPublicationsJerry PhenneyRAM Construction ServicesTechnical ActivitiesMark NelsonNelson Testing LaboratoriesWomen in ICRITara Toren-RudisillThornton TomasettiON THE COVER: This photo shows the rehab ilitatedtowersat The concreteChapel ataroundBowdoinON �Post-TensioningSystemCollegein Brunswick,ME. For more informationat Gateway2, articleby NancyonModificationthis project,see theTowerarticleon page20. TamayandWWW.ICRI.ORGChris Hill, page 18.Rising from the Flames: Assessing and Repairing Fire Damageto Post-Tensioned Parking Garageby Stephen Lucy and Billy James18Post-Tensioning System Modification at Gateway Tower 222Structural Repair and Protection of University of MissouriHospitals and Clinics Post-Tensioned Parking Garageby Nancy Tamay and Chris Hillby Chris BallDEPARTMENTS2468102828President's MessageWomen in ICRITAC TalkSecretariat UpdateICRI Supporting MembersConcrete Repair CalendarIndustry News30323436383940Chapter NewsChapters Chair's LetterAssociation NewsPeople on the MoveProduct InnovationNew ICRI MembersIndex of AdvertisersNOTE FROM THE EDITORThis issue of the Concrete Repair Bulletin, themed "Post-TensionSystem Evaluation and Repair," features technical articles about aCase Study of the University of Missouri Hospitals and ClinicsParking Garage Repairs, the Post-Tension System Modification atGateway Tower 2, and the Assessing and Repair of a FireDamaged Post-Tensioned Parking Garage.ICRI has completed the 2021 Virtual Spring Convention and plansare moving ahead for the remainder of 2021. Hopefully, as the vaccine rolloutcontinues, we may be able to gather in person for the Fall Convention and chaptermeetings in the near future. Please continue to send your chapter events andupdates to Dale Regnier.I hope you are all having a great start to 2021 and I look forward to seeing you atfuture ICRI conventions and chapter meetings!Jerry PhenneyRAM Construction ServicesEditor, Concrete Repair BulletinThe International Concrete Repair Institute is the leading resourcefor education and information to improve the quality of repair,restoration, and protection of concrete. Visit www.icri.org.MAY/JUNE 2021CONCRETE REPAIR BULLETIN1
PRESIDENT'SMESSAGEFuture Forward—Embracing a Brighter TomorrowIn November, Rolling Stonemagazine published 14Invaluable Lessons Business Leaders LearnedD u r i n g t h e Pa n d e m i els/lessonsbusiness-leaders-learnedELENA KESSIERIC HAUTHduring-pandemic-1095153).The article touched on themes that reach across our ICRIdemographic.While the list is more comprehensive, it could be condensedinto three fundamental ideas:1.People are always our most important asset.2. Change is necessary, not just inevitable.3.Leadership matters, now more than ever.In the previous edition of the CRB, we highlighted a numberof initiatives ICRI has taken to push ahead during the pandemic. We are committed to ensuring that our organizationcomes out of this difficult time even better positioned tomeet the needs of our members—and attract more membersin the months and years ahead.We are proud to report that, so far, ICRI has weathered thestorm about as well as we could have hoped. We continueto develop and launch new products to serve the industry.We have streamlined some of our processes to operatemore efficiently. We have operated within budget, settingthe stage for stronger growth in the months ahead.This brings us to lesson 1, above: Great people separategreat organizations from good ones. So, we would behugely remiss if we did not start this article with the biggestpossible thank you to the many great people serving asvolunteers on ICRI’s technical and administrative committees throughout the most difficult period in memory.Volunteers serving on our committees are the heart andsoul of ICRI, contributing their time, talent, and energy tomake ICRI and the concrete repair industry better. In manyways, they have not missed a beat, and, with the widespreaduse of Zoom, the committees are doing more than ever toadvance the technical and administrative work of ICRI. Thisis the spirit that makes ICRI such a special and resilientorganization. We could not be more grateful for this remarkable commitment.2CONCRETE REPAIR BULLETINMAY/JUNE 2021As we write this article, ICRI is set to launch the 2021 VirtualSpring Convention—our third virtual convention since thestart of the COVID-19 pandemic. It is hard to believe thatthe last time ICRI was able to bring our members togetherin person was over one and a half years ago at the FallConvention in Philadelphia! When the ICRI Board of Directors had to make the difficult decision to cancel our 2020Spring Convention scheduled for Vancouver, BC, none ofus thought then that we would still be virtual more than ayear later.Thankfully, innovation and science have led to a rapiddevelopment and deployment of life-saving vaccines thatlet us glimpse a future when we can return to a new normal.We say “new normal” because we all know that a crisis ofthis magnitude has changed the world in many ways andthat we cannot just return to the world that existed in late2019.But a new normal that brings us back together safely isfinally on the horizon!We are especially excited to announce that in April, the ICRIBoard of Directors approved a recommendation of theConventions Committee to return to a live convention thisFall in Minneapolis! The Fall Convention will mark a returnto the connections and fun that ICRI is known for.The new normal not only means that we need to considerhow best to maintain safe conditions; it also means buildingon the lessons learned from virtual and distance-based workover the past year. For example, ICRI is exploring “hybrid”models that enable live convention opportunities as wellas virtual opportunities to reach an even broader audience.Through the successful video product demos shown at theFall and Spring Virtual Conventions, we are excited toannounce that ICRI will soon offer a year-round video“Buyers Guide” platform featuring product demos from ourmember companies. This represents another great exampleof an innovation that grew out of the challenge of the pandemic.No doubt you have also begun thinking a lot about what“new normal” means to you, your company, and youremployees/team members.As we continue to move forward, what lessons from thepandemic should we never lose sight of and carry forward?As the only association focused on the concrete repairindustry, ICRI seeks to embody the same spirit of adaptWWW.ICRI.ORG
ability, resiliency, and perseverance of our members. So,together, let us challenge each other to put into focus thepositive side of the new normal.Thank you for your ongoing commitment to and membership with ICRI during this challenging time. We cannot waitto get back together this Fall and share our insights inperson once again. In the meantime, we will keep buildingtoward a brighter future!Sincerely,Elena Kessi2021 ICRI PresidentEric HauthICRI Executive DirectorProject Award EntriesNow Accepted. Submit your Project Award entryby June 1, 2021 and pay an entryfee of 250.PROJECT AWARDS202129 Years of Recognizing OutstandingConcrete Repair, Restoration, andPreservation ProjectsNew This Year—ICRI Safety Awards! Submit your Project Award entrybetween June 2 and July 1, 2021and pay an entry fee of 300. Complete rules can be found eHistoricThe ICRI Safety Awards have been created to promote and support a culture of safetyin the concrete repair industry—believing that all incidents and injuries can be avoided.IndustrialThe ICRI Environmental Health and Safety Committee has created this award as amethod of recognizing industry safety best practices, celebrating leaders in theindustry, and sharing those best practices so others may learn and employ.LongevityLow-RiseThe committee will present awards in each category, as well as awards for the sizeof the company in each category, and finally, an overall award for each category.Award Categories: Contractor Engineer/Architect Manufacturer/SupplierDeadline for entries is Thursday, July 1, 2021, 5:00 pm CDTThere is no entry fee in 2021Parking StructuresSAFETY AWARD2021Eligibility: This program is for ICRI members and includes contractors, engineers, and manufacturers/suppliers. Members with an employee fatality in 2020 are ineligible.For complete Project and Safety Awards rules I.ORGMasonrySpecial ProjectSustainabilityTransportationWater SystemsMAY/JUNE 2021CONCRETE REPAIR BULLETIN3
WOMENINICRIHighlighting the difference-makers—the womenin the International Concrete Repair InstituteConcrete,Construction, Careers—The 3C ProgramI C R I 's Ro c k y M o u n t a i nChapter has started a newinternship/mentorship proNatalie Fabergram—3C—for local highMM Systems Corpschool students who arecurrently enrolled or aboutto graduate. We, like everyone in our industry,identified a need for more skilled labor and education opportunities within the concrete repairtrades. Contractors, engineers, manufacturers,and distributors were polled and all quicklyoffered an overwhelming amount of support andinterest.The Rocky Mountain Chapter is partnering withlocal organizations like Denver Children’s Homeand Boys Hope Girls Hope, which assist theseyoung adults through high school when fosterfamilies are not available or their local educationpath is not best suited for their academic track.Each of these organizations recognized the parallel and opportunities for their students and areworking with us to recruit members into theprogram. Each internship is paid and additionally,we aligned with a local university to offer counseling support from current graduate studentsworking on their psychology Master's to ourinterns as they work through their respectiveinternships.ICRI international has supported us from thebeginning and is helping spread the word tochapters across the U.S. Bringing life back to thetrades and passing along the current skill set ofthe labor and professional industries is the futureof our organization and skilled workers. We currently have an incredible talent pool within ourorganization and the 3C program facilitates thegrowth and education reflected in our visionstatement.If you want to learn more about adopting theprogram for your local chapter, contact NatalieFaber at N.faber@mmsystemscorp.com or816.838.2746.4CONCRETE REPAIR BULLETINMAY/JUNE 2021WOMENCatherine MiguelezLeonardOne of the biggest benefits ofICRI is the ability to connectwith others in our industry,including students looking tonetwork with potential futureCatherine MiguelezLeonardemployers. CatherineWestern SpecialtyMiguelez Leonard was a NewContractorsJersey Institute of Technology(NJIT) student when she participated in her firsttechnical meeting with the Metro New YorkChapter of ICRI, and quickly made connectionsthat helped jump-start her post graduate career."When I joined ICRI 4 years ago, I never thoughtthat I would be looking back from where I amtoday nor on the impact ICRI would, and continues to, have on my journey."At NJIT, I was involved in multiple extracurriculars; however, none matched the wealth of opportunities that ICRI provided. Through ICRI, mycollege partook in monthly dinners hosted by theorganization, which proved to be an invaluableasset for me and my peers. More than the instruction, insights, and opportunities to network wasthe exposure to such an exceptional and accomplished group of caring professionals. Theyserved not only as a resource for guidance butas an example and affirmation of the career thatI chose to pursue."Due to the networking opportunities I was provided by ICRI, I was able to obtain a successfulinternship that led to a career after graduation. Ican say, without equivocation, that the path I’vetraveled has been clearer, my footing firmer, andthe friends and colleagues more substantivebecause of ICRI. Looking back, I would not wantit any other way."About the CIM Program: Recognizing the need for people withenhanced technical, communication, and management skills,the Concrete Industry Management (CIM) program was developed in 1996 at Middle Tennessee State University. Since then,the program has expanded to the New Jersey Institute ofTechnology, California State University—Chico, and Texas StateUniversity. Beginning in the fall of 2021, South Dakota StateUniversity will be the fifth university participating in the program.WWW.ICRI.ORG
PEDESTRIAN DECK COATING SYSTEMSMIRAFLEX XLWhere to use: Over interior/exterior concrete surfaces Mixed-use, residential and commercial Waterproofing of existing topping slabs oversandwich membranes Vented and unvented metal pan deck slabsAdvantages: Vapor permeable - allows substrate to breathwithout blistering Wide array of slip resistant textures, colorsand finishes Lower maintenance and life cycle costs vs.other flooring typesMiraFlex XL is a cementitious, fabric- reinforced, waterproofingmembrane system engineered for exterior pedestrian traffic applications. VOC and LEED-compliant, low odor andfast cure timeMIRAFLEX IIWhere to use: Interior/Exterior over occupied space Mixed-use, residential and commercial Over plywood and concrete substratesAdvantages: Monolithic, seamless protection –waterproofing membrane One-hour fire rated over plywood (ICCESR 1714 listing) VOC and LEED-compliant, low odorand fast cure time Wide array of slip resistant textures,colors and finishesMiraFlex II is a multi-layered pedestrian deck coating systemconsisting of a lath-reinforced cementitious underlayment,fluid-applied waterproofing membrane, and decorativefinished deck surface. It can also serve as an under tilewaterproofing membrane system.Learn more at miracote.com
TACTALKTAC GOALS FOR 2021—CREATEA TECHNICAL CHAIR TRAININGPROGRAMThe second of our four TAC goals in 2021is to create and publish a training programfor ICRI Technical Committee Chairs. Sucha program is necessary to provide practicalsupport to our volunteers who make theMARK NELSONchoice to chair a technical committee.Under the direction of ICRI TAC member Ashish Dubey, USGCorporation, we were able to create such a program.The ICRI Chair Training Program PowerPoint is located onthe main Technical Committee page on the ICRI committeeworkflow management site, Causeway. In that samelocation, you can find the ICRI Technical Committee Manual(TCM) which details in great length all of the technicalinformation required to run an ICRI technical committeemeeting. Acting as the chair of a committee meeting canbe intimidating, especially for those who have never had torun a committee meeting. We hope this training programprovides a simple vehicle to bring a new committee chairthe basic knowledge required for this volunteer role.The two main purposes of the ICRI Chair Training ProgramPowerPoint are:1.to summarize those meeting leadership rules andresponsibilities found within the TCM; and2. to address the soft skills required to run a meeting.How do you start a meeting? How do you entertainmotions? When do you have a quorum? What itemscan be voted upon during the meeting without aquorum?All of these practical issues are covered within this program.In addition to running meetings, the ICRI Chair TrainingProgram PowerPoint also helps the technical committeechair with the responsibilities between the actual meetings.The program details how to initiate a ballot, how to interactwith TAC, and who from ICRI is assigned to support the chairwhen he or she has any questions regarding the process.All of these practical items are covered in the program inorder to help make the experience of volunteering as anICRI technical committee chair as enjoyable and transparentas possible. My hope is that each individual ICRI memberhas the opportunity to expand into a leadership role withinour technical committees. Thanks again to Ashish, alongwith Fred Goodwin and the other members, who helpedput this program together.ICRI TECHNICAL COMMITTEE CHAIRS Liying Jiang, Jensen HughesCommittee 110 Paul Farrell, Carolina Restoration & WaterproofingCommittee 120 Jeff Carlson, Consulting Engineers GroupCommittee 130 Michael Saulnier, Pegasus Painting & WaterproofingCommittee 130 Vincent LaPointe, SIMCO TechnolgiesCommittee 160 Charles Mitchell, SK&ACommittee 210 David Rodler, SK&ACommittee 210 Peter Haveron, Texas Concrete RestorationCommittee 310 Mark Kennedy, Simpson Strong-TieCommittee 320 Tarek Alkhrdaji, Structural TechnologiesCommittee 330 Jason Coleman, Wiss, Janney, Elstner Associates, Inc.Committee 410 Jorge Costa, Durability, Inc.Committee 510 Eric Muench, Sika CorporationCommittee 710ATTEND A TECHNICAL COMMITTEEMEETINGYou can become a leader, too. All of the leaders abovestarted by attending a technical committee meeting. EachICRI member has the opportunity to join and participate inICRI technical committees. You can attend a meeting bysimply asking the Technical Committee chair for an invitationto the next virtual meeting.You can find the schedule for upcoming meeting dates onthe ICRI website. As always, if you want to join an ICRItechnical committee, please feel free to contact me directlyat mnelson@nelsontesting.com.Mark Nelson is chair of the ICRI Technical ActivitiesCommittee (TAC).The International Concrete Repair Institute is the leading resource for education and information toimprove the quality of repair, restoration, and protection of concrete. Visit www.icri.org.6CONCRETE REPAIR BULLETINMAY/JUNE 2021WWW.ICRI.ORG
Easier saturation.Faster installation.Introducing Composite Strengthening Systems 44 oz. carbon fiber fabric fromSimpson Strong-Tie. The thickest and strongest FRP on the market, our 44 oz. fabric makesinstallation extremely fast and easy. Its innovative flat weave has a fiberglass chord that allowssaturant to absorb more efficiently. Our carbon fabric’s high strength means fewer layers arerequired to meet load demands — significantly reducing installation time, waste and labor costs.Backed by our expert training and jobsite support, your FRP installations will be faster, easierand more economical than ever.To learn more about how our innovative new fabric can improve all of your future FRP projects,visit go.strongtie.com/FRP or call (800) 999-5099. 2021 Simpson Strong-Tie Company Inc. CSS4421-C
SECRETARIATUPDATEWithin most volunteer-led tradeassociations, there is one common theme:consistency, year-over-year predictabilityand continuity. This has both positive andnegative outcomes—members generallyknow what to expect from their associationand change is at times painfully slow. TheJOHN McDOUGALL Secretariat role was implemented less than18 months from the first brainstormingsession where we debated the best fitting nomenclaturefor a seated committee.That is among the most dynamic shifts I have seen in almost20 years of working with associations. The underlyingprinciple that brought us to the Secretariat was to removeroadblocks. We removed roadblocks to create the role, andthe role is to remove roadblocks. Currently, we are furtherdeveloping the roles and responsibilities within the groupto increase engagement from our members, reduce theworkload of the Secretariat members, and continue toremove roadblocks.The work of the Secretariat is catalogued in our workflowmanagement database, Causeway, It houses every ideasubmitted, with updates on each of them. No ideas arediscarded, especially those that are not initially pushedforward for development. No idea is a bad idea; it is,however, common for an idea to be presented at a timewhere the workload has filled our pipeline and adding moreideas to the flow would result in several initiatives beingunder-serviced. Hence, the indexing and storage of allideas. When the pipeline frees up, we will review andbreathe life back into an old idea if it meets the goals andwe can properly support it.Causeway allows ICRI commitee members to collaboratefrom across the globe, work on shared documents, hostcalendars and agendas, and even manage the voting formotions made at the committee level. This has significantlyincreased the efficiency of all our committees, and allowsthe Secretariat to walk initiatives through the variousstakeholders and influencers within ICRI's committeestructure. Without Causeway, we would be pushingeverything out in emails, using various cloud storageservices, and not have centrally located storage for ourdocuments and discussions.If you would like to learn more about Causeway and how ithelps ICRI and the Secretariat manage the work of ICRI,please feel free to reach out. We are always seeking toidentify roadblocks, remove them, or navigate around them.If you would like to get involved in the workflow with theSecretariat, please reach out to me via email and we willfind a way for you to get involved. The door is always openfor volunteer work. If you have a passion for a specific topicwithin the ICRI spectrum, we will find a way to support it.My email is johnmcdougall27540@gmail.com. We arealways looking to help you be more engaged in yourassociation.John McDougall is ICRI President-Elect, Secretariat Chair,CSRT certified, and Past President of the ICRI CarolinasChapter.VolunteerThe success of the International Concrete Repair Institute and its work in the industry dependson a strong, active volunteer force. As a member of ICRI, you are invited to participate in themeetings and projects of any ICRI administrative or technical committee. All are volunteer-led anddepend on your expert contributions.ICRI’s volunteer program strives to create an environment that is friendly and welcoming. Asan ICRI volunteer, you work closely with volunteer leaders and ICRI staff—active parts of eachcommittee, who are available to assist you to answer questions about how ICRI operates, and tohelp you be the most effective volunteer possible.Visit www.icri.org for more information.8CONCRETE REPAIR BULLETINMAY/JUNE 2021WWW.ICRI.ORG
SUPPORTINGMEMBERSICRI would like to thank its Supporting Members,whose dedication to ICRI is greatly appreciated, and.Saint Paul, Minnesotawww.cortecvci.comSaint Paul, Minnesotawww.amengtest.comCapitol Heights, MarylandPantone3268www.imerusa.comCMYK 20-0-0-50CMYK 90-0-49-0Chattanooga, Tennesseewww.cromcorp.comElkton, Marylandwww.aquafin.netPrior Lake, Minnesotawww.imrestoration.comHollywood, Floridawww.bengoaconstruction.comCleveland, Ohiowww.euclidchemical.comVancouver, British Columbia, Canadawww.kryton.comParsippany, New Jerseywww.protectosil.comJessup, Marylandwww.calindman.comAtlantic Beach, Floridawww.lymtal.comSan Antonio, Texaswww.foxfireusa.netJessup, Marylandwww.cclint.comDeerfield Beach, Floridawww.mapei.comBaltimore, Marylandwww.concretecpr.comSterling, Virginiawww.freyssinetusa.comAttleboro, ETE REPAIR BULLETINMAY/JUNE 2021Shakopee, st Dundee, Illinoiswww.hammer-construction.comWWW.ICRI.ORG
SUPPORTING MEMBERS.your continued support greatly enhances programs bothwithin ICRI and the concrete repair industry as a whole.Aurora, Illinoiswww.prospec.comPleasanton, Californiawww.strongtie.comRancho Dominguez, Californiawww.miracote.comColumbia, Marylandwww.pullman-services.comElmhurst, Illinoiswww.nelsontesting.comColumbia, Marylandwww.structural.netAtlanta, Georgiawww.quikrete.comCharlotte, North Carolinawww.terracon.comDallas, Texaswww.neogard.comFlorence, Alabamawww.hpsubfloors.comNRG Consulting—Independent ContractorFort Myers, Florida\Winnipeg, Manitoba, Canadawww.vector-corrosion.comLawrenceville, Georgiawww.tecservices.comSt. Louis, Missouriwww.westerngroup.comPost TensioningSolutionsAuburn, , New Jerseywww.sikausa.comNorcross, Georgiawww.whitecap.comLawrence, Kansaswww.prosoco.comWWW.ICRI.ORGHouston, Texaswww.ssicm.comHampshire, Illinoiswww.wrmeadows.comMAY/JUNE 2021CONCRETE REPAIR BULLETIN11
Looking to become qualified as aConcrete Surface Repair Technician?The International Concrete Repair Institutehas a program for you!Education Course—Gain essentialknowledge and training from your officeor home Build a foundation for concrete surfacerepair, inspections, and testing Full online training that includes fivecompetency-based modules Take this program by itself or get certifiedthrough the certification programCertification Course—Demonstrateknowledge and competency to stand outfrom the crowd Qualifies you to perform pre- and postplacement inspections and testing Includes the five online training modules inthe education program, an onlineknowledge exam, and performance exam onASTM test methods (video recorded or live)Concrete Surface Repair Technician (CSRT) Program“The ICRI CSRT program has assembled a vast amount of information an individual can learn best practices that typically take five to tenyears to accumulate. Whether you are new to concrete repair orexperienced this program has something for everyone.”Jacob Borgerson, CSRT-Grade 1, Wiss, Janney, Elstner Associates, Inc.Learn more at www.icri.orgCERTIFICATIONContact:Dale RegnierProgram Directordaler@icri.orgInternational Concrete Repair Institute
Gary Carlson EquipmentAllentown ShotcretePumps and GunsPutzmiesterShotcrete PumpsRental and sales for grouting and wetand dry shotcrete equipment***Available Nationwide***Chemgrout Mixers Pumps andPlantsGary Carlson Equipment Co.Sullivan Air Compressorsand ToolsRentals - Sales - Service - Delivery1380 County Rd C West, Roseville, MN10720 Mankato St., Blaine, MNReed Shotcrete SystemsPumps and GunsColidal MixersPhone 763.792.9123http://www.garycarlsonequip.com5-PART WEBINAR SERIES CONTINUESMoisture in Concrete Floor Slabs—Friend or Foe?What You Don’t Know about Moisture in Concrete Floor Slabs Can Cost YouA 5-Part Webinar Series. Moisture-related problems with floor coverings and coatings are a serious and costly issue.Each year the direct and indirect costs associated with such problems amount to billions of unplanned dollars. In this5-part webinar series, experts in the field of moisture in concrete, testing, mitigation, and repair will share informationand experience in a ground-up approach to the causes and solutions to such problems. Even if you missed Parts 1-3,the Webinars have been recorded for on-demand access.Part 1—February 17Part 2—March 17Part 3—April 14Part 4—May 12Part 5—June 2Where Does Moisture in Floor Slabs Come From?Presenter: Peter Craig, FICRI, FACI, CCSMTTThe Role Concrete Plays in Floor Slab MoisturePresenter: Scott Tarr, PE, FACI, CCSMTTFloor Slab Moisture Testing MethodsPresenter: David Paal, CCSMTT, CCHSFI, CWFIFloor Slab Moisture MitigationPresenter: Peter Craig, FICRI, FACI, CCSMTTMoisture in Concrete Floor Slabs: Panel Discussion and Q&A SessionPanelists: Adam Bakeman, Peter Craig, David Paal, Scott TarrVisit www.icri.org for details.WWW.ICRI.ORGMAY/JUNE2021CONCRETE REPAIR BULLETIN13
Rising from the Flames:Assessing and Repairing FireDamage to Post-TensionedParking Garageby Stephen Lucy and Billy JamesFig. 1: Completed parking garageDesigned to fulfill the parking needs of two downtownDallas hotels, the parking garage at 1712 CommerceStreet in Dallas was under construction when itcaught fire. The 10-story structure was constructed of cast-inplace concrete with one-way post-tensioned slabs and posttensioned beams. During construction, a fire was set insidethe structure by vagrants. That fire grew into a three-alarmblaze, causing significant damage and posing a considerableobstacle to completing construction on schedule. Despiteextensive damage, the scheduled completion was only delayed by 30 days, and the garage opened for use in Spring2019 (Fig. 1).THE FIREThe three-alarm fire occurred in the early morning hours ofSeptember 27, 2017 (Fig. 2). At the time, drilled pier foundations had been installed, one above-ground level had beensubstantially completed, and formwork and reinforcing steelwas in place to construct the east half of Level 3. The engineer14CONCRETE REPAIR BULLETINMAY/JUNE 2021visited the site a few hours after the fire was extinguished toreview the interior of the structure in the immediate area ofthe fire (Fig. 3). Although there was serious damage
is published bimonthly by the: International Concrete Repair Institute, Inc. 1000 Westgate Drive, Suite 252 St. Paul, MN 55114 www.icri.org For information about this publication or about membership in ICRI, write to the above address, phone (651) 366 6095, fax (651) 290 2266, or email info@icri.org. The opinions expressed in
