1、*USACE / NAVFAC / AFCESA / NASA UFGS-32 01 22 (August 2008)-Preparing Activity: USACE SupersedingUFGS-32 01 22 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2008*SECTION TABLE OF CONTENTSDIVISION 32 - EXTERIOR IMPROVEMENTSSECTION 32 01 22BITUMINO
2、US REJUVENATION08/08PART 1 GENERAL1.1 UNIT PRICES1.1.1 Measurement1.1.1.1 Quantity of Rejuvenator1.1.1.2 Treated Pavement1.1.2 Payment1.2 REFERENCES1.3 SYSTEM DESCRIPTION1.3.1 Bituminous Storage Tanks1.3.2 Bituminous Distributor1.3.3 Brooms and Blowers1.4 SUBMITTALS1.5 QUALITY ASSURANCE1.6 DELIVERY,
3、 STORAGE, AND HANDLING1.7 ENVIRONMENTAL REQUIREMENTSPART 2 PRODUCTS2.1 REJUVENATOR2.2 AGGREGATEPART 3 EXECUTION3.1 PREPARATION OF SURFACE3.2 APPLICATION OF REJUVENATOR MATERIAL3.2.1 Excess Rejuvenator Material3.2.2 Ponding and Puddling of Rejuvenator Material3.2.3 Excess Runoff of Rejuvenator3.2.4 I
4、nsufficient Rejuvenator Material3.3 TEST SECTION3.4 SAMPLING AND TESTING3.4.1 Sampling3.4.2 Testing3.4.3 Calibration TestSECTION 32 01 22 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- End of Section Table of Contents -SECTION 32 01 22 Page 2
5、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-32 01 22 (August 2008)-Preparing Activity: USACE SupersedingUFGS-32 01 22 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL da
6、ted July 2008*SECTION 32 01 22BITUMINOUS REJUVENATION08/08*NOTE: This guide specification covers the requirements for rejuvenation of bituminous pavements using a liquid rejuvenator material.Edit this guide specification for project specific requirements by adding, deleting, or revising text. For br
7、acketed 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 proponent o
8、f 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 these paragraphs when lump-sum bi
9、dding is used.*1.1.1 Measurement1.1.1.1 Quantity of RejuvenatorThe quantity of rejuvenator to be paid for will be the number of liters gallons used in the accepted work as determined by the Contracting Officer, corrected to liters at 15 degrees C gallons at 60 degrees F in accordance with ASTM D 125
10、0, and provided that the measured quantities are not 20 SECTION 32 01 22 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-percent over the approved application rate. Any amount of rejuvenator exceeding the approved application rate by more than
11、20 percent will be deducted from the measured quantities except for irregular areas where hand spraying of the rejuvenator is necessary. The actual application rate will be determined by the Contracting Officer by dividing the number of liters gallons of rejuvenator actually applied by the number of
12、 square meters square yards of pavement treated.1.1.1.2 Treated PavementThe quantity of pavement treated with rejuvenator to be paid for will be the number of square meters square yards completed and accepted as determined by the Contracting Officer. The number of square meters square yards of treat
13、ed pavement will be determined by measuring the length and width of the specified work area. Measurements to determine the number of square meters square yards will be along the surface of the pavement and will be to the closest mm inch for width and the closest meter foot for length.1.1.2 PaymentQu
14、antities of rejuvenator and treated pavement will be paid for at respective unit prices. Payment will not be made for quantities of rejuvenator and treated pavement when actual application rate of rejuvenator is more than 20 percent below the approved application rate until deficiency is corrected i
15、n accordance with paragraph Insufficient Rejuvenator Material.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, design
16、ation, 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
17、 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 to within the text by t
18、he basic designation only.ASTM INTERNATIONAL (ASTM)ASTM D 1250 (2007) Standard Guide for Use of the Petroleum Measurement TablesSECTION 32 01 22 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASTM D 140 (2001; R 2007) Sampling Bituminous Mater
19、ialsASTM D 1856 (1995a; R 2003) Recovery of Asphalt from Solution by Abson MethodASTM D 2170 (2007) Kinematic Viscosity of Asphalts (Bitumens)ASTM D 2171 (2007) Viscosity of Asphalts by Vacuum Capillary ViscometerASTM D 2172 (2005) Quantitative Extraction of Bitumen from Bituminous Paving MixturesAS
20、TM D 244 (2004) Emulsified AsphaltsASTM D 2995 (1999; R 2004) Determining Application Rate of Bituminous DistributorsASTM D 92 (2005a) Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester1.3 SYSTEM DESCRIPTIONEquipment, tools, and machines are subject to approval and shall be
21、maintained in satisfactory working condition at all times.1.3.1 Bituminous Storage TanksProvide bituminous storage tanks capable of heating the bituminous material under effective and positive control at all times to the required temperature. Accomplish heating by steam coils, hot oil, electricity,
22、or other suitable method. Affix an armored thermometer to the tank so that the temperature of the bituminous material may be read at all times.1.3.2 Bituminous DistributorProvide a bituminous distributor designed and equipped to spray the bituminous material in a uniform double or triple lap at the
23、temperature recommended by the manufacturer, at variable widths, and at readily determined and controlled rates from 0.10 to 1.0 L/square meter 0.04 to 0.2 gallon/square yard with an allowable variation from the specified rate of not more than plus or minus 5 percent. Include with the distributor eq
24、uipment a separate power unit for 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 hose attachm
25、ent suitable for applying bituminous material manually to areas inaccessible to the distributor. The distributor shall be equipped for circulation and agitation of the bituminous material during the heating process.1.3.3 Brooms and BlowersFurnish brooms and blowers of the power type, suitable for cl
26、eaning the surfaces of bituminous pavements.SECTION 32 01 22 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.4 SUBMITTALS*NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list
27、 to reflect only the submittals required 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
28、“G” if the submittal item is not complex 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
29、within the 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);
30、“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 NASA projects, or choose the second bracketed item for Army projects.*Government
31、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 identifies the office that will review the submittal for the Government. Submit the
32、 following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:SD-04 SamplesBituminous BinderSamples of sufficient size to provide enough bituminous binder for determination of viscosity.1.5 QUALITY ASSURANCEThe rejuvenator will be applied so that the test properties of binder extracted from sa
33、mples of the upper 9 mm 3/8 inch of the surface of the test section show that viscosities have decreased by at least 40 percent. Compute the percent decrease in viscosity as follows:100 (Viscosity of untreated sample) - (Viscosity of treated sample)/ (Viscosity of untreated samples)SECTION 32 01 22
34、Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.6 DELIVERY, STORAGE, AND HANDLINGProtect rejuvenator material from excessively high or low temperatures. Store the rejuvenator at temperatures recommended by the manufacturer. Smoking, fire or f
35、lames other than heaters that are part of the equipment will not be permitted in the vicinity of heating, distributing or transferring operations for rejuvenators that are flammable.1.7 ENVIRONMENTAL REQUIREMENTSApply the rejuvenator to a dry surface and only when the atmospheric temperature in the
36、shade is 10 degrees C 50 degrees F or above. Delay application if rain appears imminent within 8 hours following planned time of application.PART 2 PRODUCTS2.1 REJUVENATORProvide chemical rejuvenator having a proven record of satisfactory performance based on the ability of the material to decrease
37、the viscosity of the binder material, to reduce the rate of loss of fines, and to retard crack propagation. Select a material that neither permanently damages nor obscures pavement markings. Specific application specifications shall be as recommended by the manufacturer and approved by the Contracti
38、ng Officer. Sample the rejuvenating material according to ASTM D 140 the test results shall conform to the following requirements:Property Requirement Test Method_ _ _Residue, percent 55 minimum ASTM D 244 (1)Viscosity at 60 degrees C, 80-500 ASTM D 2170sq mm/sec (2)Flash Point (3) Cleveland 177 min
39、imum ASTM D 92Open Cup (COC), degrees CProperty Requirement Test Method_ _ _Residue, percent 55 minimum ASTM D 244 (1)Viscosity at 140 degrees F, 80-500 ASTM D 2170centistokes (2)Flash Point (3) Cleveland 350 minimum ASTM D 92Open Cup (COC), degrees F(1) ASTM D 244 evaporation test for percent resid
40、ue shall be modified by heating 50 gram samples to 150 degrees C 300 degrees F until foaming ceases, cooling immediately, and calculating the results.(2) Viscosity on the residue obtained from evaporation test.(3) Flash point on residue from evaporation test.SECTION 32 01 22 Page 7Provided by IHSNot
41、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2 AGGREGATEGradation of mineral aggregate shall meet the following requirements:Percent bySieve Designation Weight Passing_ _1.18 mm 1000.60 mm 40-750.30 mm 4-120.15 mm 0-5Percent bySieve Designation Weight Passing_ _N
42、o. 16 100No. 30 40-75No. 50 4-12No. 100 0-5PART 3 EXECUTION3.1 PREPARATION OF SURFACEImmediately before applying the rejuvenator, remove loose material, dirt, clay, or other objectionable material from the surface to be treated. After the cleaning operation and prior to application of the rejuvenato
43、r, the Contracting Officer will inspect the area to be treated to determine fitness of the area to receive the rejuvenator.3.2 APPLICATION OF REJUVENATOR MATERIALFollowing preparation and subsequent inspection of the surface, uniformly apply the rejuvenator over the surface to be treated at the appr
44、oved rate with an allowable variation from the approved rate of application of plus or minus 20 percent and at the temperature recommended by the supplier. To obtain uniform application of the rejuvenator on the surface treated at the junction of previous and subsequent applications, spread building paper on the surface at a sufficient distance back from the ends of each application so that the rejuvenator may be started and stopped on the paper. Immediately after application, remove the building paper and properly dispose of it. Are
