[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-1-en-105":3,"doc-seo-566121-105":53,"doc-detail-566121-en":120},{"code":4,"msg":5,"data":6},0,"success",[7,14,19,24,29,34,39,44,49],{"id":8,"doc_module":9,"doc_module_name":10,"category_name":11,"show_sort_weight":12,"slug":13},11,1,"Template","Presentations",90,"presentations",{"id":15,"doc_module":9,"doc_module_name":10,"category_name":16,"show_sort_weight":17,"slug":18},12,"Resumes",80,"resumes",{"id":20,"doc_module":9,"doc_module_name":10,"category_name":21,"show_sort_weight":22,"slug":23},14,"Invoices",70,"invoices",{"id":25,"doc_module":9,"doc_module_name":10,"category_name":26,"show_sort_weight":27,"slug":28},15,"Posters",60,"posters",{"id":30,"doc_module":9,"doc_module_name":10,"category_name":31,"show_sort_weight":32,"slug":33},16,"Social Media",50,"social-media",{"id":35,"doc_module":9,"doc_module_name":10,"category_name":36,"show_sort_weight":37,"slug":38},17,"Forms",40,"forms",{"id":40,"doc_module":9,"doc_module_name":10,"category_name":41,"show_sort_weight":42,"slug":43},18,"Letters",30,"letters",{"id":45,"doc_module":9,"doc_module_name":10,"category_name":46,"show_sort_weight":47,"slug":48},21,"Paper Templates",5,"papers-templates",{"id":50,"doc_module":9,"doc_module_name":10,"category_name":51,"show_sort_weight":4,"slug":52},158,"General","general-158",{"code":4,"msg":54,"data":55},"ok",{"site_id":56,"language":57,"slug":58,"title":59,"keywords":60,"description":61,"schema_data":62,"social_meta":113,"head_meta":115,"extra_data":117,"updated_unix":119},105,"en","chase-field-repairs-concrete-repair-bulletin-novemberdecember-2017","Chase Field Repairs - Concrete Repair Bulletin November/December 2017","","Chase Field Repairs describes corrosion damage in Chase Field (Bank One Ballpark) in Phoenix, Arizona, where frequent pressure-washer washdowns and a lack of waterproof protective membrane enabled moisture ingress through leaking precast joints and expansion joints. Moisture-driven corrosion affected reinforcing steel, prestressing strands, connection plates, structural steel members, and guardrails, discovered after assessment and investigation. The repair work included corrosion-inhibiting concretes, epoxy injection, and moisture-blocking detailing, while fire-rated requirements up to 3 hours complicated moisture management and required intumescent waterproof epoxy coatings and specialized fire caulk assemblies.",{"@graph":63,"@context":112},[64,80,95],{"@type":65,"itemListElement":66},"BreadcrumbList",[67,71,74,77],{"item":68,"name":69,"@type":70,"position":9},"https://docshare.wps.com","Home","ListItem",{"item":72,"name":10,"@type":70,"position":73},"https://docshare.wps.com/template/",2,{"item":75,"name":46,"@type":70,"position":76},"https://docshare.wps.com/template/paper-templates/",3,{"item":78,"name":59,"@type":70,"position":79},"https://docshare.wps.com/template/chase-field-repairs-concrete-repair-bulletin-novemberdecember-2017/566121/",4,{"url":78,"name":59,"@type":81,"author":82,"headline":59,"publisher":85,"fileFormat":88,"inLanguage":57,"description":61,"dateModified":89,"datePublished":89,"encodingFormat":88,"isAccessibleForFree":90,"interactionStatistic":91},"DigitalDocument",{"name":83,"@type":84},"Pentious","Person",{"url":68,"name":86,"@type":87},"DocShare","Organization","application/pdf","2026-10-13",true,{"@type":92,"interactionType":93,"userInteractionCount":4},"InteractionCounter",{"@type":94},"ViewAction",{"@type":96,"mainEntity":97},"FAQPage",[98,104,108],{"name":99,"@type":100,"acceptedAnswer":101},"What caused the corrosion damage at Chase Field?","Question",{"text":102,"@type":103},"Corrosion resulted from severe water infiltration caused by wash-down pressure cleaning cycles and leaking precast caulk and building-expansion joints, combined with the absence of waterproof protective membranes in seating areas.","Answer",{"name":105,"@type":100,"acceptedAnswer":106},"How was the corrosion evaluated and tested?",{"text":107,"@type":103},"Evaluation used visual inspection and hammer sounding, along with ground-penetrating radar, destructive investigation, petrographic examination, chloride and carbonation testing, and materials testing such as air entrainment, density, and compressive strength.",{"name":109,"@type":100,"acceptedAnswer":110},"What fire-protection challenges affected the repair approach?",{"text":111,"@type":103},"Repairs were in areas needing up to 3-hour fire ratings, and original spray-applied fireproofing absorbed moisture and did not dry, promoting corrosion; repairs therefore used intumescent epoxy waterproof coatings and alternative fire-rated joint treatments.","https://schema.org",{"og:url":78,"og:type":114,"og:title":59,"og:site_name":86,"og:description":61},"article",{"robots":116,"canonical":78},"index,follow",{"doc_id":118,"site_id":56},566121,1791861085,{"code":4,"msg":5,"data":121},{"doc_id":118,"user_id":122,"nickname":83,"user_avatar":123,"doc_module":9,"category_id":45,"category_name":46,"doc_title":59,"doc_description":61,"doc_content":124,"file_id":125,"file_url":126,"file_type":127,"file_size":128,"view_count":4,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":79,"language":129,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":130,"faqs":131,"seo_title":132,"seo_description":61,"update_tm":119,"read_time":73},1374404730887,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","26  \nA W  \nA R  \nD  \nO F  \nE X  \nC E  \nL L  \nE N  \nC E  \nFINALIST-2017 PROJECT OF THE YEAR  \nSPECIAL PROJECTS CATEGORY  \nChase Field Repairs  \nPHOENIX, AZ  \nSUBMITTED BY GERVASIO & ASSOCIATES INC.  \nFig. 1: Interior view of Chase Field  \nChase Field (f.k.a. Bank One Ballpark) is located in Phoenix, Arizona, with a seating capacity of 48,633,  \nand is home to the Arizona Diamondbacks Major League baseball team (Fig. 1). The stadium was  \nconstructed in 28 months and completed in 1998.The structural systems consist of reinforced concrete frames supporting concourses/seating areas, cantilevered steel raker trusses supporting overhanging seating areas, high strength threaded rebar tieback anchors connect steel raker trusses to the cast-in-place concrete frame, and precast prestressed concrete seating risers span between raker trusses or concrete raker beams/ walls.  \nPROBLEMS THAT PROMPTED REPAIR  \nMoisture infiltration resulted in corrosion damage to reinforcing steel, prestressing strands, embedded steel connection plates, structural steel members, connections and steel guardrails/handrails. In 2011, when the stadium was only 13 years old, a facility assessment identified corrosion-related damage to concrete and steel members. It has been under repair ever since.  \nThe reason for the corrosion damage was not weather-related or atmospheric. Phoenix is in a hot, dry desert. Stadium cleaning methodology after each  \neventisa thorough wash-down with pressure washers that caused severe corrosion damage from the following:  \n• Frequent wetting/drying cycles (over 100 cleanings per year);  \n• High temperatures (corrosion rates double for every 18°F [8 degrees C] temperature rise);  \n• High chloride contents from salted peanuts, where the shells are dropped onto the floor and washed down; and  \n• The stadium was built without any type of waterproof protective membrane in seating areas. Failing joints between precast members  \nCONCRETE REPAIR BULLETIN NOVEMBER/DECEMBER 2017 WWW. ICRI. ORG  \n(both caulk joints and building-expansion joints) allowed water infiltration to critical structural members and connections.  \nAlthough the original design did not include waterproofing, it did include an extensive “rain gutter” system beneath the precast joints to collect water ifjoints leaked, diverting it into uninhabited spaces (Fig. 2). Because leaking water never created a “problem”(or puddle) on the floor, the full extent of the leaking was not recognized, but there wereefflorescence stains on the columns and raker beams. Further investigation and implementation of repairs led to discovery of the full corrosion extent. Evaluation and testing methods utilized visual evaluation; hammer sounding; ground-penetrating radar (GPR); destructive investigation; petrographic examination; chloride and carbonation testing; and air entrainment, density, and compressive strength testing.  \nFIRE PROTECTION COMPLICATIONS  \nRepairs were located in areas requiring up to 3-hour fire ratings. The original fireproofing (spray applied cementitious, or mineral wool), absorbed moisture, never drying out,while holding it against structural elements, thereby promoting corrosion (Fig. 3-5) . Repairs included intumescent epoxy coating (1/4 to ½ in [6 to 13 mm] thick waterproof epoxy) on all steel raker trusses and threaded rebar anchors to achieve the required 3-hour fire rating (Fig. 6). Instead of moisture-absorbing mineral wool, fire rated building-expansion joints or intumescent tape were used at precast caulk joints to achieve floor-floor fire ratings. A standard UL rated fire caulk assembly was not possible because the bottom side of the joint was over the concrete raker beam/wall and inaccessible.  \nREPAIRS  \nA wide range of materials/methods were used and included ready-mix cast-in-place concrete (including corrosion inhibitors, silica fume, and shrinkage reducing admixtures), form and pour, form and pump, hand patching, and epoxy injection. Various protection meth","cbCailuMLSt2hqUR","https://ap.wps.com/l/cbCailuMLSt2hqUR","pdf",5440891,"English","# Problems That Prompted Repair\n## Fire Protection Complications\n## Repairs","[{\"question\":\"What caused the corrosion damage at Chase Field?\",\"answer\":\"Corrosion resulted from severe water infiltration caused by wash-down pressure cleaning cycles and leaking precast caulk and building-expansion joints, combined with the absence of waterproof protective membranes in seating areas.\"},{\"question\":\"How was the corrosion evaluated and tested?\",\"answer\":\"Evaluation used visual inspection and hammer sounding, along with ground-penetrating radar, destructive investigation, petrographic examination, chloride and carbonation testing, and materials testing such as air entrainment, density, and compressive strength.\"},{\"question\":\"What fire-protection challenges affected the repair approach?\",\"answer\":\"Repairs were in areas needing up to 3-hour fire ratings, and original spray-applied fireproofing absorbed moisture and did not dry, promoting corrosion; repairs therefore used intumescent epoxy waterproof coatings and alternative fire-rated joint treatments.\"}]","Chase Field Repairs - Concrete Repair Bulletin November/December 2017 | PDF"]