1、*USACE / NAVFAC / AFCESA / NASA UFGS-32 01 13.00 20 (February 2012)-Preparing Activity: NAVFAC NEWUNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated January 2012*SECTION TABLE OF CONTENTSDIVISION 32 - EXTERIOR IMPROVEMENTSSECTION 32 01 13.00 20EMULSIFIED ASPHALT SEAL
2、COATS WITH WITHOUT AGGREGATE02/12PART 1 GENERAL1.1 MEASUREMENT AND PAYMENT PROCEDURES1.1.1 Emulsified Asphalt Measurement Methods1.1.2 Payment1.2 REFERENCES1.3 SYSTEM DESCRIPTION1.3.1 Equipment, Plant and Tools1.3.2 Asphalt Distributors1.3.3 Aggregate Spreader1.3.4 Power Brooms and Power Blowers1.3.
3、5 Vacuum Sweepers1.4 SUBMITTALS1.5 QUALITY ASSURANCE1.5.1 Samples1.5.2 Aggregates Source1.5.3 Emulsified Asphalt Source1.5.4 Equipment Calibration1.5.5 Material Performance1.6 DELIVERY, STORAGE, AND HANDLING1.7 ENVIRONMENTAL REQUIREMENTSPART 2 PRODUCTS2.1 EMULSIFIED ASPHALT FOR CONVENTIONAL SEAL COA
4、T2.2 (GSB-88) CATIONIC EMULSION OF GILSONITE ORE2.3 AGGREGATE FOR SEAL COAT2.3.1 Film Retention2.3.2 Friable Particles2.3.3 MOHS Hardness2.3.4 Sand Equivalent2.4 ANTISTRIPPING AGENT2.5 WATERPART 3 EXECUTIONSECTION 32 01 13.00 20 Page 1Provided by IHSNot for ResaleNo reproduction or networking permit
5、ted without license from IHS-,-,-3.1 PREPARATION OF SURFACE3.1.1 Cleaning Operations3.1.2 Protection of Site Facilities3.2 EMULSIFIED ASPHALT SEAL COAT APPLICATION3.2.1 Rate3.2.2 Temperature3.2.3 Application of Emulsified Asphalt3.2.4 Excess Sealcoat Material3.2.5 Ponding and Puddling of Sealcoat Ma
6、terial3.2.6 Excess Runoff of Sealcoat3.2.7 Insufficient Sealcoat Material3.2.8 Aggregate Application Rate3.2.9 Application of Aggregate3.3 TEST SECTION APPLICATION - SEAL COAT3.4 FIELD QUALITY CONTROL - SEAL COAT3.4.1 Tests3.4.2 Aggregate Gradation3.4.3 Stripping3.4.4 Emulsified Asphalt Sample3.4.5
7、Water Compatibility Test3.4.6 Application Inspection3.4.7 Friction Tests3.5 TRAFFIC CONTROL- End of Section Table of Contents -SECTION 32 01 13.00 20 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-32 01 13.
8、00 20 (February 2012)-Preparing Activity: NAVFAC NEWUNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated January 2012*SECTION 32 01 13.00 20EMULSIFIED ASPHALT SEAL COATS WITH WITHOUT AGGREGATE02/12*NOTE: This guide specification covers the requirements for emulsified as
9、phalt surface coatings (not coal tars products) for low volume roads, parking areas, airfield secondary and tertiary pavements (low-speed taxiways, shoulders, overruns), and other general applications with or without aggregate applied on the applied coating. An emulsified asphalt seal coat without a
10、ggregate, more commonly called a fog seal“, can be considered for use on pavements with low to moderate weathered surfaces (as defined by ASTM D5340).This specification can be used for high volume or high speed roads, taxiways and runways only with the incorporation of a suitable aggregate in order
11、to maintain adequate surface friction and only with the written approval of the cognizant NAVFAC (Echelon III), AFCESA MAJCOM or TSMCX Pavement Engineer. At present, only the GSB-88 seal coat product with aggregate should be considered for use on airfield runway pavements.There are numerous emulsifi
12、ed asphalt seal coat products available through commercial vendors, some proprietary and some generic ASTM specification types. This specification includes requirements for both generic and proprietary products that have been demonstrated to the Government to be acceptable for use. The project desig
13、ner is encouraged to specify generic products to their fullest practical extent. Proprietary products cited herein may be specified as acceptable alternates for generic products, or, when both approved by the cognizant NAVFAC (Echelon III), AFCESA MAJCOM or TSMCX Pavement Engineer and determined to
14、be justified for use in a contract document, specified as required proprietary products.If used on Design/Build projects involving high volume or high speed roads or any airfield pavement, this section shall be prepared by the Government RFP SECTION 32 01 13.00 20 Page 3Provided by IHSNot for Resale
15、No reproduction or networking permitted without license from IHS-,-,-preparer and shall not be further edited by the Contractors Designer of Record.Adhere to UFC 1-300-02 Unified Facilities Guide Specifications (UFGS) Format Standard when editing this guide specification or preparing new project spe
16、cification sections. 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 requirements not required in respective project, whether or not bracket
17、s are present.Comments, suggestions and recommended changes for this guide specification are welcome and should be submitted as a Criteria Change Request (CCR).*PART 1 GENERAL*UFC 3-250-03, “Standard Practice Manual for Flexible Pavements“ should be used for guidance in preparing these specification
18、s.*1.1 MEASUREMENT AND PAYMENT PROCEDURES*NOTE: Payment and Measurement shall be made on a unit price bases with the test section determined application rate for emulsion and aggregate. Therefore, this requires that the contract documents reflect unit pricing for the asphalt emulsion and aggregate,
19、if used.*Measure the quantities of emulsified asphalt and aggregate used in the accepted work and to be paid for, provided that the measured quantities are not more than 10 percent over the test section determined application rate. Any amount of emulsified asphalt and aggregate more than 10 percent
20、over the test section determined application rate for each application will be deducted from the measured quantities except for irregular areas where hand spraying of the bituminous material and hand spreading of the aggregate is necessary.1.1.1 Emulsified Asphalt Measurement Methods*NOTE: When the
21、emulsified asphalt material is measured in liters (gallons), the appropriate ASTM method will be retained for the type of emulsified asphalt specified.*The amount of emulsified asphalt to be paid for will be measured in L at SECTION 32 01 13.00 20 Page 4Provided by IHSNot for ResaleNo reproduction o
22、r networking permitted without license from IHS-,-,-15.6 degrees C gallons at 60 degrees F. Correct volumes measured at temperatures other than 15.6 degrees C 60 degrees F in accordance with ASTM D1250 using a coefficient of expansion of 0.00045 per degree C 0.00025 per degree F for asphalt emulsion
23、.The amount of aggregate to be paid for will be measured in metric tons tonsof dry aggregate. Measurement of the materials shall be by approved weigh scales.1.1.2 PaymentBase bids on the average specified application rates for emulsified asphalt and aggregate used in production. The test section sha
24、ll be used to determine actual production application rates.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 by organization, designat
25、ion, 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.References not used in t
26、he 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 to within the text by the
27、 basic designation only.ASTM INTERNATIONAL (ASTM)ASTM C136 (2006) Standard Test Method for Sieve Analysis of Fine and Coarse AggregatesASTM C142/C142M (2010) Standard Test Method for Clay Lumps and Friable Particles in AggregatesASTM C29/C29M (2009) Standard Test Method for Bulk Density (“Unit Weigh
28、t“) and Voids in AggregateASTM D1250 (2008) Standard Guide for Use of the Petroleum Measurement TablesASTM D140/D140M (2009) Standard Practice for Sampling Bituminous MaterialsSECTION 32 01 13.00 20 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
29、-,-ASTM D1474 (2008) Standard Test Method for Indentation Hardness of Organic CoatingsASTM D2027 (2010) Cutback Asphalt (Medium-Curing Type)ASTM D2397 (2005) Standard Specification for Cationic Emulsified AsphaltASTM D2419 (2009) Sand Equivalent Value of Soils and Fine AggregateASTM D2495 (2007) Sta
30、ndard Test Method for Moisture in Cotton by Oven-DryingASTM D2995 (1999; R 2009) Determining Application Rate of Bituminous DistributorsASTM D3625 (1996; R 2005) Standard Practice for Effect of Water on Bituminous-Coated Aggregate Using Boiling WaterASTM D4402 (2006) Viscosity Determination of Aspha
31、lt at Elevated Temperatures Using a Rotational ViscometerASTM D5 (2006e1) Penetration of Bituminous MaterialsASTM D75/D75M (2009) Standard Practice for Sampling AggregatesASTM D977 (2005) Emulsified AsphaltU.S. FEDERAL AVIATION ADMINISTRATION (FAA)FAA AC 150/5320-12 (1997, Rev C) Measurement, Constr
32、uction and Maintenance of Skid-Resistant Airport Pavement SurfacesU.S. FEDERAL HIGHWAY ADMINISTRATION (FHWA)MUTCD (2009) Manual of Uniform Traffic Control Devices1.3 SYSTEM DESCRIPTION*NOTE: Retain equipment units required for the project and delete all others.*1.3.1 Equipment, Plant and ToolsEquipm
33、ent, plant and tools used in the work are subject to Government approval and shall be maintained in a satisfactory working condition at all times. Provide equipment which is adequate and has the capability of producing the results specified. Provide calibrated equipment, such as asphalt distributors
34、, scales, batching equipment, spreaders and similar SECTION 32 01 13.00 20 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-equipment, that has been recalibrated by an approved calibration laboratory within 1 _ months prior to commencing work an
35、d every 6 months thereafter, by such laboratory from the date of recalibration, during the term of the contract. Submit an equipment list with calibration reports.1.3.2 Asphalt DistributorsProvide distributors that have pneumatic tires of sufficient size and number to prevent rutting, shoving, or ot
36、herwise damaging any part of the pavement structure. Design and equip the distributor to distribute the bituminous material in a uniform double or triple lap at the specified temperature, at readily determined and controlled rates from 0.23 to 0.92 L/square meter 0.05 to 0.2 gallons/square yard, wit
37、h a pressure range of 172.4 to 517.1 kPa 25 to 75 psi with an allowable variation from the specified rate of not more than plus or minus 5 percent, and at variable widths. These rates shall be computer, rather than mechanical controlled. Include in the distributor equipment a separate power unit for
38、 the bitumen pump, full-circulation spray bars, tachometer, pressure gauges, volume-measuring devices, adequate heaters for heating of materials to the proper application temperature, a thermometer for reading the temperature of tank contents, and a hand-held hose attachment suitable for applying bi
39、tuminous material manually to areas inaccessible to the distributor. Equip the distributor to circulate and agitate the bituminous material during the heating process. Provide distributor with an adjustable, both horizontally and vertically, spray nozzle bar. Make normal width of bar application at
40、least 3.7 m 12 feet, with provisions for lesser or larger width when necessary. Equip distributor with a meter having a dial registering meters of travel/sec feet of travel/min. Make both dials visible to the distributor driver. Provide an easily accessible thermometer that constantly monitors the t
41、emperature of the seal coat.*NOTE: Delete the following paragraph when no aggregate is to be used.*1.3.3 Aggregate SpreaderThe aggregate-spreading equipment shall be adjustable and capable of uniformly spreading aggregate at the specified rate in a single-pass operation of sealer and aggregate over
42、the surface to be sealed. For high volume roads and pavements trafficked by aircraft, aggregate application shall be from a spreading device attached to the asphalt distributor.1.3.4 Power Brooms and Power BlowersProvide power brooms and power blowers suitable for cleaning surfaces to which the seal
43、 coat is to be applied.1.3.5 Vacuum SweepersProvide self-propelled, vacuum pickup sweepers capable of removing loose sand, water, and debris from pavement surface.1.4 SUBMITTALS*NOTE: Review Submittal Description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit SECTION 32 01 13.00
44、20 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-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, wi
