1、*USACE / NAVFAC / AFCESA / NASA UFGS-32 12 37 (August 2008)-Preparing Activity: USACE SupersedingUFGS-32 12 37 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2008*SECTION TABLE OF CONTENTSDIVISION 32 - EXTERIOR IMPROVEMENTSSECTION 32 12 37FUEL-RES
2、ISTANT (COAL TAR) SEALER08/08PART 1 GENERAL1.1 UNIT PRICES1.1.1 Waybills and Delivery Tickets1.1.2 Method of Measurement1.1.2.1 Coal-tar Emulsion1.1.2.2 Additive Materials1.1.2.3 Aggregate1.1.3 Payment1.2 REFERENCES1.3 SYSTEM DESCRIPTION1.3.1 Mixing1.3.2 Application1.3.2.1 Squeegee Application1.3.2.
3、2 Spray Application1.3.3 Cleaning Equipment1.3.4 Hand Tools1.4 SUBMITTALS1.5 QUALITY ASSURANCE1.5.1 Sampling1.5.2 Testing1.5.3 Calibration Test1.5.4 Trial Application1.6 DELIVERY, STORAGE, AND HANDLING1.7 WEATHER LIMITATIONSPART 2 PRODUCTS2.1 AGGREGATE2.2 WATER2.3 COAL-TAR EMULSION2.4 POLYMER ADDITI
4、VE2.5 SEALER MIXTUREPART 3 EXECUTIONSECTION 32 12 37 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.1 PREPARATION OF SURFACE3.1.1 Cracks3.1.2 Vegetation3.1.3 Oil or Fuel Contaminated Areas3.1.4 Tack Coat3.2 MIXING AND APPLICATION OF SEALER3.
5、2.1 Mixing3.2.1.1 Mechanical Mixing3.2.1.2 Hand Mixing3.2.2 Mechanical Application3.2.2.1 Squeegee3.2.2.2 Spray3.2.3 Hand Application3.2.4 Wetting Pavement Surface3.2.5 Joints3.3 CURING3.4 RETEST AND REJECTION3.5 CLEANUP- End of Section Table of Contents -SECTION 32 12 37 Page 2Provided by IHSNot fo
6、r ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-32 12 37 (August 2008)-Preparing Activity: USACE SupersedingUFGS-32 12 37 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2008*SECTION
7、 32 12 37FUEL-RESISTANT (COAL TAR) SEALER08/08*NOTE: This guide specification covers the requirements for fuel-resistant (coal tar) sealer for bituminous pavements in parking and maintenance areas.Edit this guide specification for project specific requirements by adding, deleting, or revising text.
8、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 and suggestions on this guide specification are welcome and should be directed to the technical propo
9、nent of the specification. A listing of technical proponents, including their organization designation and telephone number, is on the Internet.Recommended changes to a UFGS should be submitted as a Criteria Change Request (CCR).*PART 1 GENERAL1.1 UNIT PRICES *NOTE: Delete this paragraph when lump s
10、um bidding is used.*1.1.1 Waybills and Delivery TicketsSubmit copies of waybills and delivery tickets during the progress of the work. Before the final statement is allowed, submit certified waybills and delivery tickets for all materials used in the work covered by this section. Do not remove remai
11、ning coal-tar emulsion, additive, or aggregate until measurements of the quantities used have been made.SECTION 32 12 37 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.1.2 Method of Measurement*NOTE: When other methods of measurement are des
12、ired or necessary, this paragraph will be modified accordingly.*1.1.2.1 Coal-tar EmulsionThe amount of coal-tar emulsion to be paid for will be measured by the number of liters gallons of the material used in the accepted work. Use the proper coefficient of volumetric expansion per degree C F, as su
13、pplied by the manufacturer, for all binder volume calculations.1.1.2.2 Additive MaterialsAdditive materials include any additives or modifiers added to the coal-tar sealer mixture. The materials may be measured by volume or weight.1.1.2.3 AggregateThe amount of aggregate to be paid for will be the n
14、umber of dry metric 2,000 pound tons placed and accepted as part of the coal-tar sealer mixture in the completed work.1.1.3 PaymentQuantities of coal-tar sealer, additives, and aggregate determined as specified will be paid for at the respective contract unit prices. Such payment will constitute ful
15、l compensation for all operations necessary to complete the work as specified herein.1.2 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
16、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 update the issue dates
17、.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 publications are referred
18、to within the text by the SECTION 32 12 37 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-basic designation only.ASTM INTERNATIONAL (ASTM)ASTM C 136 (2006) Standard Test Method for Sieve Analysis of Fine and Coarse AggregatesASTM C 142 (1997;
19、R 2004) Standard Test Method for Clay Lumps and Friable Particles in AggregatesASTM D 140 (2001; R 2007) Sampling Bituminous MaterialsASTM D 2939 (2003) Emulsified Bitumens Used as Protective CoatingsASTM D 5727 (2000; R 2004e1) Emulsified Refined Coal Tar (Mineral Colloid Type)ASTM D 75 (2003) Stan
20、dard Practice for Sampling Aggregates1.3 SYSTEM DESCRIPTIONMachines, tools, and equipment used in the performance of the work will be approved before the work is started and shall be maintained in satisfactory condition.1.3.1 MixingMix the sealer in a mobile batch mixer of a type approved by the Con
21、tracting Officer. Provide a mixer capable of producing a uniform mixture of coal-tar emulsion , additives, and aggregate. The mixing unit shall have suitable mixing blades to combine the predetermined quantities of materials into a homogeneous slurry.1.3.2 Application*NOTE: A decision must be made t
22、o apply the sealer by spraying or by squeegeeing, based partially upon the condition of the pavement prior to sealing.Manufacturers recommendations should be followed when determining the method of application. Spraying applies an even distribution of material throughout the application area. Applic
23、ation with a squeegee will allow for the filling of slight imperfections, depressions, or cracks. When desired, the initial squeegee application may be followed by a second spray application.The following paragraphs should be edited depending upon the application method selected.*SECTION 32 12 37 Pa
24、ge 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.3.2.1 Squeegee ApplicationAttache a variable-width mechanical-type squeegee to the mobile-application vehicle to place the slurry. Maintain the attached squeegee with flexible material in contact
25、with the pavement surface to control application and prevent excessive loss of sealer mixture from the spreader on varying grades and crown. Provide a squeegee capable of adjustments to ensure a uniform spread; the mobile-application vehicle shall discharge the sealer to provide satisfactory applica
26、tion. Provide the vehicle with a water tank, pump, and spray bar for fogging the pavement surface ahead of the spreader box. Keep the spreader box clean; buildup of sealer and aggregate on the squeegee and spreader box will not be permitted.1.3.2.2 Spray ApplicationThe spray vehicle may be self-prop
27、elled or towed, designed and equipped to apply a uniform mixture of sealer and aggregate at rates ranging from 0.45 to 3.17 L/square meter 0.10 to 0.70 gallons/square yard. Include with sprayer equipment a separate power unit, agitated tank, spray bar, hand spray wand, and suitable pump and plumbing
28、 for handling sealer and aggregate.1.3.3 Cleaning EquipmentProvide cleaning equipment consisting of power brooms, power blowers, power vacuums, air compressors, hand brooms, and other equipment as needed. The equipment shall be suitable for cleaning the surface and cracks in the existing pavement.1.
29、3.4 Hand ToolsProvide hand tools consisting of hand squeegees, shovels, and other equipment as necessary to perform the work.1.4 SUBMITTALS*NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list to reflect only the submittals required
30、 for the project. Submittals should be kept to the minimum required for adequate quality control.A “G” following a submittal item indicates that the submittal requires Government approval. Some submittals are already marked with a “G”. Only delete an existing “G” if the submittal item is not complex
31、 and can be reviewed through the Contractors Quality Control system. Only add a “G” 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 submittal tags may be used fo
32、llowing 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 SECTION 32 12 37 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
33、rom IHS-,-,-(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 projects.Choose the first bracketed item for Navy, Air Force and
34、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. information only. When used, a designation following the “G“ designation i
35、dentifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:SD-03 Product DataSealer MixtureA copy of the mixture proportions that meet all the requirements of this specification.SD-06 Test ReportsSealer Materi
36、als; G; G, _Samples or certified test results of the materials, _ days prior to the beginning of work. No material will be used until it has been approved.1.5 QUALITY ASSURANCE1.5.1 Sampling*NOTE: Insert the appropriate sampling method where bituminous binders are not used. Follow manufacturers reco
37、mmendations.*Furnish aggregate samples in accordance with ASTM D 75. Samples of coal-tar emulsion, unless otherwise specified, shall be in accordance with ASTM D 140. Furnish additional samples of materials as required.1.5.2 Testing*NOTE: An approved testing laboratory is required to meet the testin
38、g requirements of this specification. The Contractor testing, when accepted, should only be used for quality control on the job and not for the initial mixture design.Coordinate this paragraph with the specified requirements in paragraph Composition.*SECTION 32 12 37 Page 7Provided by IHSNot for Res
39、aleNo reproduction or networking permitted without license from IHS-,-,-Test Sealer Materials to establish compliance with the specified requirements. Perform quality control testing by an approved commercial testing laboratory or by Contractor testing, subject to approval by the Contracting Officer
40、.1.5.3 Calibration Test*NOTE: Calibration of all equipment used to place sealer will allow the Government to determine the application rate and thereby the total quantity of material placed per unit area of pavement.*Furnish equipment, materials, and labor as necessary to calibrate equipment used to
41、 place the sealer. Make calibrations with the approved job materials prior to applying the sealer materials to the prepared surface. The manufacturer shall provide a method of calibration for all commercial equipment.1.5.4 Trial ApplicationPrior to applying the sealer mixture, place a test section a
42、t least 30 meters 100 feet long and two squeegee widths wide using the approved materials and equipment. Place the sealer mixture in accordance with the specified requirements. Determine the rate of application for compliance to specification requirements. If the test section does not conform to the
43、 specification requirements, make necessary adjustments, and construct additional test sections at the Contractors expense for conformance to the specifications. Where test sections do not conform to the specification requirements, remove the sealer mixture by milling, grinding, or another approved method. Test sections that conform to all specification requirements may become part of the accepted
