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The material specifies permeability testing and concrete classes, outlines placement and consolidation rates, and describes methods for preventing defects such as improper consolidation, mortar edge conditions, and uncontrolled shrinkage-related cracking. It also covers bonding construction joints, protections against cold-weather placement and evaporation control, and bridge deck finishing practices including screed constraints, curing-related fogging rules, and straightedge testing tolerances to minimize life-cycle costs.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/deck-and-overlay-pours-learning-objectives-and-applicable-specifications/663953/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/deck-and-overlay-pours-learning-objectives-and-applicable-specifications/663953.png","ImageObject",300,407,{"name":92,"@type":93},"Rainbow Cat","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-29",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What concrete testing requirement is referenced for deck and overlay pours?","Question",{"text":112,"@type":113},"Concrete is required to be tested for permeability in accordance with the referenced specification section.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How should placement and consolidation be handled for different pour sizes?",{"text":117,"@type":113},"Pours between 26 and 80 cubic yards require a minimum placement rate of 25% per hour, while pours greater than 80 cubic yards require a minimum placement rate of 20 cubic yards per hour; consolidation must use vibrators uniformly without causing localized grout areas.",{"name":119,"@type":110,"acceptedAnswer":120},"What inspection and finishing checks are emphasized to ensure quality?",{"text":121,"@type":113},"Inspect consolidation under parapet or railing reinforcement and avoid leaving mortar pushed to the edge under reinforcing steel. The deck should also be tested using a 10-foot straightedge with stated tolerance limits for longitudinal and transverse deviations.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},663953,1793235190,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":129,"read_time":144},962090769181,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","| |\n| --- |\n| Deck and Overlay Pours\u003Cbr>Presenter: Wayne Nolde, P.E.\u003Cbr>Staunton District Southern Area Construction Engineer |\n| |\n\n2  \nLearning Objectives  \nBy the end of this lesson participants will better understand:  \n• Specifications associated with deck and overlay pours and their role in enforcing them .  \n• The potential issues associated with deck and overlay pours.  \n• Where to focus their inspection efforts to ensure quality and the lowest possible life cycle costs.  \n3  \nApplicable Specifications  \n404.02– Materials  \n(a) Concrete shall conform to Section 217. All concrete shall be tested for permeability in accordance with Section 217. When specified on the plans, low shrinkage concrete used in bridge decks and parapets, curbs, rails, medians, and other concrete appurtenances cast above the deck surface shall conform to Section 217 for Class A4 Concrete Modified to Minimize Cracking with Shrinkage Reducing Admixture.  \n4  \nApplicable Specifications  \n404.03– Procedures:  \n(c) Placement and Consolidation:  \n• Pours of between 26 an 80 cubic yards shall be placed at a minimum rate of 25% per hour.  \n• Pours greater than 80 cubic yards shall be placed at a minimum rate of 20 cubic yards per hour.  \n• Placing concrete by pumping will be permitted (authorization by the Engineer is no longer required) provided concrete is pumped through a conduit system that is not aluminum.  \n5  \nApplicable Specifications  \n404.03– Procedures:  \n(c) Placement and Consolidation continued:  \n• Consolidation shall be accomplished by the use of vibrators in a uniform manner without causing localized areas of grout. The vibrators should be inserted and withdrawn slowly without direct application to the forms or reinforcement.  \n• Verify that the concrete at bulkheads and under the parapet or railing reinforcement is well consolidated, not just the areas finished by the screed.  \n• Concrete that is mostly mortar pushed to the edge of the deck by the screed rollers cannot be left under the parapet reinforcing steel.  \n• Mortar on the reinforcing steel that can not be removed by hand brushing with a wire bristle brush or a light chipping hammer will not have to be removed.  \n6  \nApplicable Specifications  \n404.03– Procedures:  \n(h) Bonding Construction Joints:  \n• For bridge decks the application of epoxy Type EP-4 to the vertical surface of the prior pour at the construction joint is no longer required. The joint shall be clean and in a saturated surface moist condition when the concrete is cast up against it.  \n• After the concrete in the second bridge deck placement has set, a V groove shall be formed along the top of the joint by abrasive blast cleaning to a depth of at least 3/8 inch and sealed with epoxy, Type EP-5 low viscosity, conforming to Section 243.  \n7  \nApplicable Specifications  \n404.03– Procedures:  \n(l) Protecting Concrete:  \n• Concrete shall not be placed against surfaces whose temperature is below 40 degrees F.  \n• Protective measures such as fogging are required as needed to maintain the evaporation rate at, or below. 0.10 pounds per square foot per hour for normal concrete bridge deck placements or 0.05 pounds per square foot per hour for concrete overlays.  \n• Evaporation retardant films may be applied in a fine mist after screeding, but the surface shall not be disturbed after their placement. No mixing of the retardant and the mortar is allowed.  \n• If plastic shrinkage cracking occurs due to the contractor’s negligence or failure to comply with the specifications, the Engineer may direct the Contractor to make repairs by epoxy injections, concrete removal and replacement or other methods at not cost to the Department.  \n8  \nApplicable Specifications  \n404.04—Bridge Deck Construction:  \n• Approval of the screed by the Engineer is no longer required.  \n• Fogging or misting devices attached to the screed shall not be permitted. Water shall not be applied to the concrete surface at anytime during the finishing.  \n• Scre","cbCaivrUEUZiI3lS","https://ap.wps.com/l/cbCaivrUEUZiI3lS","pdf",402296,23,"English","# Learning Objectives\n# Applicable Specifications\n## 404.02 - Materials\n## 404.03 - Procedures\n## 404.04 - Bridge Deck Construction","[{\"question\":\"What concrete testing requirement is referenced for deck and overlay pours?\",\"answer\":\"Concrete is required to be tested for permeability in accordance with the referenced specification section.\"},{\"question\":\"How should placement and consolidation be handled for different pour sizes?\",\"answer\":\"Pours between 26 and 80 cubic yards require a minimum placement rate of 25% per hour, while pours greater than 80 cubic yards require a minimum placement rate of 20 cubic yards per hour; consolidation must use vibrators uniformly without causing localized grout areas.\"},{\"question\":\"What inspection and finishing checks are emphasized to ensure quality?\",\"answer\":\"Inspect consolidation under parapet or railing reinforcement and avoid leaving mortar pushed to the edge under reinforcing steel. The deck should also be tested using a 10-foot straightedge with stated tolerance limits for longitudinal and transverse deviations.\"}]","Deck and Overlay Pours - Learning Objectives and Applicable Specifications | PDF",58]