1、*USACE / NAVFAC / AFCESA / NASA UFGS-03 41 16.08 (August 2012)-Preparing Activity: NASA SupersedingUFGS-03 41 16 (November 2008)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2012*SECTION TABLE OF CONTENTSDIVISION 03 - CONCRETESECTION 03 41 16.08PRECAST CONCR
2、ETE SLABS (MAX. SPAN 8- 0“ O.C.)08/12PART 1 GENERAL1.1 REFERENCES1.2 SUBMITTALSPART 2 PRODUCTS2.1 SYSTEM DESCRIPTION2.2 COMPONENTS2.2.1 Clips and Nails2.2.2 Threaded Fasteners2.3 MATERIALS2.3.1 Precast Concrete Roof Slabs2.3.2 Precast Curb Units2.3.3 Cement Grout Joint Sealing Materials2.3.4 Bitumin
3、ous Joint Sealing Materials2.3.5 Packaged Concrete Materials2.3.6 Water For Mixing Cement Grout And Concrete2.3.7 Concrete Curing MaterialsPART 3 EXECUTION3.1 PREPARATION3.1.1 Concrete Roof Slab Placement3.2 INSTALLATION3.2.1 Fastening Roof Slabs3.2.2 Cutting And Fitting3.2.3 Sealing Joints3.2.4 Ins
4、tallation Of Precast Curb Units3.2.5 Fill For Sloping Surfaces3.3 COLD-WEATHER LIMITATIONS3.4 ADJUSTING AND CLEANING3.5 PROTECTION- End of Section Table of Contents -SECTION 03 41 16.08 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / N
5、AVFAC / AFCESA / NASA UFGS-03 41 16.08 (August 2012)-Preparing Activity: NASA SupersedingUFGS-03 41 16 (November 2008)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2012*SECTION 03 41 16.08PRECAST CONCRETE SLABS (MAX. SPAN 8- 0“ O.C.)08/12*NOTE: This guide sp
6、ecification covers the requirements for flat-shaped or channel-shaped roof slabs, max. span 8-0“ o.c. placed over purlins or joists spaced not more than 2.5 meter 8 feet on center that receive insulation board and built-up roofing.Include on the drawings, the following:Complete design indicating the
7、 character of the work to be performed and giving the roof framing, type, and sizes of purlins or joists, thrust angles at walls, bearing angles at ridges for sloping roofs, end bearing plates, dimensions of roof slab units, details of precast cant units, details of cast-in-place concrete cants and
8、other sloping surfaces, details of openings, and sufficient dimensions to convey adequately the quantity and nature of the required roof decking.Assumed loads and other design data as may be required for the proper preparation of shop drawings.Precast concrete slabs for clear spans exceeding 2.5 met
9、er 8 feet are specified in Section 03 41 33 PRECAST STRUCTURAL PRETENSIONED CONCRETE.A structural steel roof framing system, including steel purlins and framing for openings larger than 1/2 width of roof slabs in any dimension, is specified in Section 05 12 00 STRUCTURAL STEEL.An open-web steel jois
10、t roof framing system is specified in Section 05 21 19 OPEN WEB STEEL JOIST FRAMING.Fire resistance-rated roof and ceiling constructions using precast concrete roof decking are described in Underwriters Laboratories, Inc., “Fire Resistance Ratings (BXUV)“ contained in UL FRD and the “Fire Resistance
11、 Ratings“ contained in AIA CO-1. Fire SECTION 03 41 16.08 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-resistance rated construction limits the type and spacing of the roof framing system; type of roof slab units and method of fastening the
12、roof slabs to the supporting frame; ceiling construction; and roof construction.Adhere to UFC 1-300-02 Unified Facilities Guide Specifications (UFGS) Format Standard when editing this guide specification or preparing new project specification sections. Edit this guide specification for project speci
13、fic requirements by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropriate information.Remove information and requirements not required in respective project, whether or not brackets are present.Comments, suggestions and recommended changes for this
14、 guide specification are welcome and should be submitted as a Criteria Change Request (CCR)*PART 1 GENERAL1.1 REFERENCES*NOTE: This paragraph is used to list the publications cited in the text of the guide specification. The publications are referred to in the text by basic designation only and list
15、ed in this paragraph by organization, designation, date, and title.Use the Reference Wizards Check Reference feature when you add a RID outside of the Sections Reference Article to automatically place the reference in the Reference Article. Also use the Reference Wizards Check Reference feature to u
16、pdate the issue dates.References not used in the text will automatically be deleted from this section of the project specification when you choose to reconcile references in the publish print process.*The publications listed below form a part of this specification to the extent referenced. The publi
17、cations are referred to within the text by the basic designation only.AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS (AASHTO)AASHTO M 182 (2005; R 2009) Standard Specification for Burlap Cloth Made from Jute or Kenaf and Cotton MatsSECTION 03 41 16.08 Page 3Provided by IHSNot for
18、 ResaleNo reproduction or networking permitted without license from IHS-,-,-AMERICAN CONCRETE INSTITUTE INTERNATIONAL (ACI)ACI C-21 (1992) Elevated SlabsAMERICAN WOOD PROTECTION ASSOCIATION (AWPA)AWPA BOOK (2012) AWPA Book of StandardsASME INTERNATIONAL (ASME)ASME B18.2.2 (2010) Standard for Square
19、and Hex NutsASME B18.2.6 (2010) Fasteners for Use in Structural ApplicationsASME B18.21.1 (2009) Washers: Helical Spring-Lock, Tooth Lock, and Plain Washers (Inch Series)ASME B18.22M (1981; R 2010) Metric Plain WashersASME B18.6.3 (2010) Machine Screws, Tapping Screws, and Machine Drive Screws (Inch
20、 Series)ASME B18.6.7M (1999; R 2010) Metric Machine ScrewsASTM INTERNATIONAL (ASTM)ASTM C150/C150M (2011) Standard Specification for Portland CementASTM C171 (2007) Standard Specification for Sheet Materials for Curing ConcreteASTM C33/C33M (2011a) Standard Specification for Concrete AggregatesASTM
21、C387/C387M (2011b) Standard Specification for Packaged, Dry, Combined Materials for Mortar and ConcreteASTM C514 (2004; R 2009e1) Standard Specification for Nails for the Application of Gypsum BoardASTM C595/C595M (2011) Standard Specification for Blended Hydraulic CementsASTM C618 (2012) Standard S
22、pecification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in ConcreteASTM C989/C989M (2011) Standard Specification for Slag Cement for Use in Concrete and MortarsASTM D312 (2000; R 2006) Standard Specification for Asphalt Used in RoofingSECTION 03 41 16.08 Page 4Provided by IHSNot f
23、or ResaleNo reproduction or networking permitted without license from IHS-,-,-U.S. GENERAL SERVICES ADMINISTRATION (GSA)FS UU-B-790 (Rev A; Am 1; Notice 1) Building Paper, Vegetable Fiber: (Kraft, Waterproofed, Water Repellent and Fire Resistant)1.2 SUBMITTALS*NOTE: Review Submittal Description (SD)
24、 definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list to reflect only the submittals required for the project.The Guide Specification technical editors have designated those items that require Government approval, due to their complexity or criticality, with a “G.“ Genera
25、lly, other submittal items can be reviewed by the Contractors Quality Control System. Only add a “G” to an item, if the submittal is sufficiently important or complex in context of the project.For submittals requiring Government approval on Army projects, a code of up to three characters within the
26、submittal tags may be used following the “G“ designation to indicate the approving authority. Codes for Army projects using the Resident Management System (RMS) are: “AE“ for Architect-Engineer; “DO“ for District Office (Engineering Division or other organization in the District Office); “AO“ for Ar
27、ea Office; “RO“ for Resident Office; and “PO“ for Project Office. Codes following the “G“ typically are not used for Navy, Air Force, and NASA projects.Choose the first bracketed item for Navy, Air Force and NASA projects, or choose the second bracketed item for Army projects.*Government approval is
28、 required for submittals with a “G“ designation; submittals not having a “G“ designation are for Contractor Quality Control approval.for information only. When used, a designation following the “G“ designation identifies the office that will review the submittal for the Government. Submit the follow
29、ing in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:SD-02 Shop DrawingsFabrication Drawings; G; G, _Installation Drawings; G; G, _SD-03 Product DataClips; G; G, _Nails; G; G, _SECTION 03 41 16.08 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
30、 IHS-,-,-Threaded Fasteners; G; G, _Joint Sealing Compounds; G; G, _Precast Concrete Roof Slabs; G; G, _Precast Curb Units; G; G, _Packaged Concrete Materials; G; G, _Absorption Cover; G; G, _Moisture-Retaining Cover; G; G, _SD-05 Design DataDesign analysis; G; G, _Calculations; G; G, _SD-06 Test Re
31、portsNail Driving and Nail Pulling Tests; G; G, _Strength Tests; G; G, _SD-07 CertificatesPrecast Concrete Roof Slabs; G; G, _Precast Curb Units; G; G, _Clips; G; G, _Nails; G; G, _Threaded Fasteners; G; G, _Cement Grout Joint Sealing Materials; G; G, _Bituminous Joint Sealing Materials; G; G, _SD-0
32、8 Manufacturers InstructionsInstallation Instructions; G; G, _PART 2 PRODUCTS2.1 SYSTEM DESCRIPTIONSubmit fabrication drawings for precast concrete deck units. On the drawings, provide dimensions, size, and number of openings to be cut.Provide and submit installation drawings for precast concrete ro
33、of slabs and cast-in-place curb units. On the drawings, provide details and layouts indicating structural framing, location and length of concrete slabs corresponding with the sequence and procedure to be followed in placing and fastening roof slabs, and location and type of fasteners. Ensure that S
34、ECTION 03 41 16.08 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-drawings also show details of curb units indicating location of cants, crickets, drainage saddles, and other sloping surfaces.2.2 COMPONENTS2.2.1 Clips and NailsUse zinc- or cad
35、mium-plated steel strip clips, not less than 0.76 millimeter 0.0299-inch thick (manufacturers standard 0.76 millimeter) 22-gage. Ensure clips are formed to fit the top flange of steel beam purlins or steel joists having steel angle top chords, and of design recommended by the precast concrete roof s
36、lab manufacturer.Use roofing nails that are 32 millimeter 1-1/4-inches long, galvanized steel, conforming to ASTM C514, Type II, Style 20.Submit manufacturers catalog product data for clips and nails.Submit certificates of compliance for clips and nails showing conformance with referenced standards
37、contained in this section.2.2.2 Threaded FastenersProvide fasteners that consist of machine screws, nuts, and washers.Use slotted, flathead, galvanized, carbon steel machine screws conforming toASME B18.6.7M ASME B18.6.3, Type I, Style 2s.Use hexagon, galvanized, carbon steel nuts conforming to ASME
38、 B18.2.6 ASME B18.2.2, Type II, Style 10.Provide round-type, galvanized, carbon steel, general-purpose assembly washers conforming to ASME B18.22M ASME B18.21.1, Type A, Grade I, Class A.Submit manufacturers catalog product data for threaded fasteners.Submit certificates of compliance for threaded f
39、asteners showing conformance with referenced standards contained in this section.2.3 MATERIALS*NOTE: Indicate precast-concrete roof slab dimensions.*2.3.1 Precast Concrete Roof Slabs*NOTE: Delete the following paragraphs when channel roof slabs are required.*Provide installation instructions that in
40、dicate the manufacturers recommended installation methods and sequence.Provide manufacturers catalog data for all accessories including nails, threaded fasteners, and joint sealing compounds.SECTION 03 41 16.08 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
41、e from IHS-,-,-Submit design analysis and calculations for precast concrete roof slabs.Submit certificates of compliance for precast concrete roof slabs showing conformance with referenced standards contained in this section.Submit test reports for precast concrete roof slabs regarding nail driving
42、and nail pulling tests and strength tests in accordance with ACI C-21.*NOTE: Delete when using channel roof slab.*Ensure roof slabs are flat or plank-shaped and conform to ACI C-21, Type I or Type II, with the following modifications:a. Ensure flat slabs have wire mesh reinforcing in both top and bo
43、ttom of the slab.b. Slabs have nailing edges.*NOTE: Delete one of the following two paragraphs as applicable to the project. When spacing of the structural framing members is less than 1.5 meter 5 feet, delete the first of the following paragraphs. When spacing of the structural framing members exceeds 1.5 meter 5 feet, delete the second of the following paragraphs.*c. Ensure flat slabs have tongue-and-groove edges on sides and square edges on ends, except that edges for exposed roof sides are square.d.
