1、*USACE / NAVFAC / AFCESA / NASA UFGS-09 66 13 (August 2010)-Preparing Activity: USACE SupersedingUFGS-09 66 13 (May 2009)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2010*SECTION TABLE OF CONTENTSDIVISION 09 - FINISHESSECTION 09 66 13PORTLAND CEMENT TERRAZZ
2、O08/10PART 1 GENERAL1.1 REFERENCES1.2 SUBMITTALS1.3 SUSTAINABLE DESIGN CERTIFICATION1.4 DELIVERY, STORAGE, AND HANDLING1.5 ENVIRONMENTAL REQUIREMENTS1.6 WARRANTYPART 2 PRODUCTS2.1 PORTLAND CEMENT2.2 SAND2.3 MARBLE CHIPS2.4 DIVIDER STRIPS2.5 CONTROL JOINT STRIPS2.6 COLORANTS2.7 CURING MATERIAL2.8 TER
3、RAZZO CLEANER2.9 SEALER2.10 SHEET MATERIALSPART 3 EXECUTION3.1 TERRAZZO PROPORTIONS3.1.1 Underbed3.1.2 Terrazzo Topping3.2 INSTALLATION3.2.1 Underbed Placement3.2.2 Setting Divider Strips3.2.3 Placing Terrazzo Topping3.2.4 Curing3.2.5 Finishing3.2.5.1 Rough Grinding3.2.5.2 Grouting3.2.5.3 Fine Grind
4、ingSECTION 09 66 13 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.3 CLEANING AND SEALING3.4 PROTECTION- End of Section Table of Contents -SECTION 09 66 13 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without li
5、cense from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-09 66 13 (August 2010)-Preparing Activity: USACE SupersedingUFGS-09 66 13 (May 2009)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2010*SECTION 09 66 13PORTLAND CEMENT TERRAZZO08/10*NOTE: This guide spec
6、ification covers the requirements for standard terrazzo bonded to concrete subfloor.Edit this guide specification for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropriate information.Remove information and requirem
7、ents not required in respective project, whether or not brackets are present.Comments and suggestions on this guide specification are welcome and should be directed to the technical proponent of the specification. A listing of technical proponents, including their organization designation and teleph
8、one number, is on the Internet.Recommended changes to a UFGS should be submitted as a Criteria Change Request (CCR).*PART 1 GENERAL*NOTE: Bonded terrazzo is normally 45 mm (1-3/4 inch) total thickness, consisting of 13 mm (1/2 inch) thick terrazzo topping over a 32 mm (1-1/4 inch) thick underbed.Whe
9、re structural movement which may injure the terrazzo is anticipated, installations should be by the sand cushion (floating) method. Where requirement exists for sand-cushion or other-type installation method, bases, precast work, or specialized work such as structural, abrasive, rustic, or venetian
10、terrazzo, or terrazzo over permanent metal forms, the specification should be revised or a separate section should be prepared as SECTION 09 66 13 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-appropriate.Areas to receive terrazzo will be sho
11、wn on the drawings. Color should be indicated by showing a selected plate number from the NTMA publication, “Terrazzo Design/Technical Data“Example: NTMA Terrazzo Color Palette, plate No. S-301-4. Colors selected may be any combination of standard marble granules of domestic origin available in the
12、local market.*1.1 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 listed in this paragraph by organization, designation, date, and title.Use the Reference Wizards
13、 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 update the issue dates.References not used in the text will automatically be deleted from thi
14、s 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 publications are referred to within the text by the basic designation only.ASTM INTERNATIONAL (AS
15、TM)ASTM C 150/C 150M (2009) Standard Specification for Portland CementASTM C 171 (2007) Standard Specification for Sheet Materials for Curing ConcreteASTM C 241/C 241M (2009) Standard Specification for Abrasion Resistance of Stone Subjected to Foot TrafficASTM C 309 (2007) Standard Specification for
16、 Liquid Membrane-Forming Compounds for Curing ConcreteASTM C 33/C 33M (2008) Standard Specification for Concrete AggregatesSECTION 09 66 13 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GREENGUARD ENVIRONMENTAL INSTITUTE (GEI)GEI Greenguard S
17、tandards for Low Emitting ProductsNATIONAL TERRAZZO “DO“ for District Office (Engineering Division or other organization in the District Office); “AO“ for Area Office; “RO“ for Resident Office; and “PO“ for Project Office. Codes following the “G“ typically are not used for Navy, Air Force, and NASA
18、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 required for submittals with a “G“ designation; submittals not having a “G“ designation are for Contractor Quality Control approval. informati
19、on only. When used, a designation following the “G“ designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:SD-02 Shop DrawingsSECTION 09 66 13 Page 5Provided by IHSNot for ResaleNo reproductio
20、n or networking permitted without license from IHS-,-,-Installation; G; G, _SD-03 Product DataCertificationSD-04 SamplesTerrazzo FlooringDivider StripsControl Joint StripsColorantsSD-10 Operation and Maintenance DataCleaning and Sealing1.3 SUSTAINABLE DESIGN CERTIFICATIONProduct shall be third party
21、 certified by GEI Greenguard Indoor Air Quality Certified, SCS Scientific Certification Systems Indoor Advantage or equal. Certification shall be performed annually and shall be current.1.4 DELIVERY, STORAGE, AND HANDLINGMaterials shall be delivered in the manufacturers unopened containers marked wi
22、th the brand name. Materials shall be delivered, handled, and stored in accordance with manufacturers instructions in a manner that will prevent deterioration and contamination.1.5 ENVIRONMENTAL REQUIREMENTSAreas to receive terrazzo shall be maintained at a temperature above 10 degrees C 50 degrees
23、F 24 hours prior to the time mixtures are placed and until completely cured.1.6 WARRANTYProvide manufacturers standard performance guarantees or warranties that extend beyond a one-year period.PART 2 PRODUCTS2.1 PORTLAND CEMENTProvide portland cement conforming to ASTM C 150/C 150M, Type I, of color
24、s required to match NTMA Info Guide color plate indicated on the drawings in Section 09 06 90 COLOR SCHEDULE.2.2 SANDSand shall conform to ASTM C 33/C 33M for fine aggregate.2.3 MARBLE CHIPSMarble chips shall be of domestic origin of sizes and colors required to match NTMA Info Guide color plate ind
25、icated on the drawings in Section 09 06 90 COLOR SCHEDULE. Marble chips shall have an abrasive hardness of not less than 10 when tested in accordance with ASTM C 241/C 241M; shall SECTION 09 66 13 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,
26、-contain no deleterious or foreign matter; and the dust content shall be less than one percent by weight.2.4 DIVIDER STRIPS*NOTE: Manufacturers literature should be reviewed when making selections for divider strips. When material and thickness of divider strips and color of plastic strips vary, dep
27、ending on location in the project, material thickness and color should be shown on the drawings and specified.*Divider strips shall be in accordance with NTMA Info Guide and shall be 30 mm 1-1/4 inch deep, _ mm gauge thick and of brass zinc plastic in color as indicated on the drawings in Section 09
28、 06 90 COLOR SCHEDULE. Standard type one-piece divider strips shall be not lighter than 1.5 mm No. 16 Brown & Sharpe gage thick be of thickness indicated. Heavy-top strips may be either one- or two-piece strips with a solid top section, not less than 6 mm 1/4 inch nor more than 10 mm 3/8 inch in dep
29、th and not less than 3 6 mm 1/8 1/4 inch thick of thickness shown. Submit two 150 mm 6 inch lengths of each type divider.2.5 CONTROL JOINT STRIPS*NOTE: Manufacturers literature should be reviewed when making selections for control joint strips.*Control joint strips shall be in accordance with NTMA I
30、nfo Guide and shall be _ mm inches deep, _ mm gauge thick and of brass zinc. Neoprene filler shall be _ mm inches thick in color as indicated on the drawings in Section 09 06 90 COLOR SCHEDULE. Submit two 150 mm 6 inch lengths of each type control joint strip.2.6 COLORANTSColorants shall be alkali-r
31、esistant and nonfading. Pigments shall be of colors required to match NTMA Info Guide color plate indicated on the drawings in Section 09 06 90 COLOR SCHEDULE.2.7 CURING MATERIALCuring material shall be either liquid membrane-forming compound, wet sand, polyethylene sheeting, or water. Liquid membra
32、ne-forming compound shall conform to ASTM C 309, Type I. Polyethylene sheeting shall conform to ASTM C 171.2.8 TERRAZZO CLEANERTerrazzo cleaner shall be biodegradable, phosphate free and shall have a pH factor between 7 and 10 and be of a type specially prepared for use on terrazzo. Submit maintenan
33、ce instructions for bonded terrazzo.2.9 SEALER*SECTION 09 66 13 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTE: Include bracketed pH factor for WESTNAVFACENGCOM projects only.*Sealer shall have a pH factor between 7 and 10 and be a penetr
34、ating type specially prepared for use on terrazzo. The sealer shall not discolor or amber the terrazzo and shall produce a slip resistant surface. Flash point of sealer shall be in accordance with NTMA Info Guide.2.10 SHEET MATERIALSSheet materials used for curing the terrazzo shall conform to ASTM
35、C 171.PART 3 EXECUTION3.1 TERRAZZO PROPORTIONS3.1.1 UnderbedUnderbed shall be composed of one part portland cement to 4 4.5 parts sand. Water shall be added to provide workability at as low a slump as possible. Spread to a level 13 mm 1/2 inch below the finished floor, to a thickness of approximatel
36、y 30 mm 1-1/4 inches.3.1.2 Terrazzo ToppingTopping shall be composed of one 43 kg 94 pound bag of portland cement per 91 kg 200 pounds of marble chips and approximately 20 L 5 gallons of water. Color pigment shall be added as needed but not to exceed 1 kg 2 pounds per bag of cement. Water shall be a
37、dded in sufficient quantity to provide workability at as low a slump as possible.3.2 INSTALLATIONSubmit drawings indicating the type, size, and layout of divider strips and control joint strips and color of floor areas.3.2.1 Underbed PlacementSurfaces of concrete subfloor shall be cleaned and satura
38、ted with water in accordance with NTMA Info Guide. Do not treat concrete substrate to receive bonded terrazzo with curing agent or additives which would preclude bonding. Excess water shall be removed from the subfloor before slushing and brooming with neat cement paste. The underbed shall be placed
39、 on the concrete subfloor and shall be screeded to an elevation 13 mm 1/2 inch below the finished floor. Divider strips shall be installed in the semiplastic underbed. The underbed shall be firmly troweled along the edges to insure positive anchorage of the divider strips. Control joint strips shall
40、 be installed over subfloor expansion joints and shall extend the full depth of the underbed.3.2.2 Setting Divider StripsSet in accordance with layout indicated while underbed is still plastic. Set strips to straight lines and to the proper level to ensure that tops of strips will show uniformly aft
41、er completing grinding and finishing operations. Fit joints and intersections tight. Where divisions in field work are not shown, divide field work into squares or rectangles of uniform size and not more than 1800 mm 6 feet on a side. Divide borders by strips SECTION 09 66 13 Page 8Provided by IHSNo
42、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-to coincide with the layout of division strips in the field of floors. Place edging strips at doorways between terrazzo and other types of flooring and along the edges of terrazzo borders adjoining other types of floor
43、finishes or floor coverings. Place expansion strips over control joints, construction joints, and expansion joints.3.2.3 Placing Terrazzo ToppingThe underbed shall be slushed and broomed in accordance with NTMA Info Guidewith neat cement paste of the same color as required for the topping. The toppi
44、ng shall be placed in panels formed by divider strips and shall be troweled level with the top of the strips. The troweled surface shall be seeded with chips in the same color proportions as contained in the terrazzo mix, troweled and rolled with heavy rollers until excess water has been extracted. The terrazzo shall be troweled to a uniform surface disclosing the lines of the di
