1、*USACE / NAVFAC / AFCESA / NASA UFGS-32 01 17.16 (August 2008)-Preparing Activity: USACE SupersedingUFGS-32 01 17 16 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2008*SECTION TABLE OF CONTENTSDIVISION 32 - EXTERIOR IMPROVEMENTSSECTION 32 01 17.1
2、6SEALING OF CRACKS IN BITUMINOUS PAVEMENTS08/08PART 1 GENERAL1.1 UNIT PRICES1.1.1 Measurement1.1.2 Payment1.2 REFERENCES1.3 SYSTEM DESCRIPTION1.3.1 Routing Equipment1.3.2 Concrete Saw1.3.3 Sandblasting Equipment1.3.4 Waterblasting Equipment1.3.5 Hand Tools1.3.6 Crack Sealing Equipment1.4 SUBMITTALS1
3、.5 QUALITY ASSURANCE1.6 DELIVERY, STORAGE, AND HANDLING1.7 ENVIRONMENTAL REQUIREMENTSPART 2 PRODUCTS2.1 SEALANTS2.2 BACKUP MATERIALSPART 3 EXECUTION3.1 PREPARATION OF CRACKS3.1.1 Cracks3.1.1.1 Hairline Cracks3.1.1.2 Small Cracks3.1.1.3 Medium Cracks3.1.1.4 Large Cracks3.1.2 Existing Sealant Removal3
4、.1.3 Routing3.1.4 Sawing3.1.5 Sandblasting3.1.6 Backup MaterialSECTION 32 01 17.16 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.1.7 Rate of Progress of Crack Preparation3.2 PREPARATION OF SEALANT3.3 INSTALLATION OF SEALANT3.3.1 Time of App
5、lication3.3.2 Sealing the Crack3.4 CRACK SEALANT INSTALLATION TEST SECTION3.5 CLEANUP3.6 QUALITY CONTROL PROVISIONS3.6.1 Crack Cleaning3.6.2 Crack Seal Application Equipment3.6.3 Crack Sealant- End of Section Table of Contents -SECTION 32 01 17.16 Page 2Provided by IHSNot for ResaleNo reproduction o
6、r networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-32 01 17.16 (August 2008)-Preparing Activity: USACE SupersedingUFGS-32 01 17 16 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2008*SECTION 32 01 17.16SEALING
7、 OF CRACKS IN BITUMINOUS PAVEMENTS08/08*NOTE: This guide specification covers the requirements for sealing cracks in bituminous pavements.Edit this guide specification for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert a
8、ppropriate 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 of the specification. A listing of technical proponent
9、s, 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 GENERAL*NOTE: For additional information concerning bituminous pavements, see UFC 3-250-03, “Bituminous Pavements Standard
10、 Practice.“*1.1 UNIT PRICES*NOTE: Paragraphs Measurement and Payment will be deleted for lump sum bidding.*SECTION 32 01 17.16 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.1.1 MeasurementDetermine the quantity of each sealing item to be pa
11、id for by actual measurement of the number of linear meters feet of in-place material that has been approved.1.1.2 PaymentPayment will be made at the contract unit bid prices per linear meter foot for the sealing items scheduled. Include in the unit bid prices the cost of all labor, materials, and t
12、he use of all equipment and tools required to complete the work.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, desi
13、gnation, 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
14、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 to within the text by
15、 the basic designation only.ASTM INTERNATIONAL (ASTM)ASTM C 509 (2006) Elastomeric Cellular Preformed Gasket and Sealing MaterialASTM D 6690 (2007) Joint and Crack Sealants, Hot Applied, for Concrete and Asphalt PavementsASTM D 789 (2007) Determination of Relative Viscosity and Moisture Content of P
16、olyamide (PA)1.3 SYSTEM DESCRIPTIONMachines, tools, and equipment used in the performance of the work required by this section shall be approved before the work is started and shall be maintained in satisfactory condition at all times.SECTION 32 01 17.16 Page 4Provided by IHSNot for ResaleNo reprodu
17、ction or networking permitted without license from IHS-,-,-1.3.1 Routing Equipment*NOTE: Rotary impact routers that are equipped with vertical sided, carbide tipped bits have been used successfully to rout cracks in bituminous pavements. Impact routers that are not equipped with carbide tipped bits
18、normally chip and damage the surrounding pavement and should not be permitted.*Provide routing equipment which is a self-powered machine operating a power driven tool or bit specifically designed for routing bituminous pavements. The bit shall rotate about a vertical axis at sufficient speed to cut
19、a smooth vertical-walled reservoir in the pavement surface and shall maintain accurate cutting without damaging the sides or top edges of the reservoir. Provide a router capable of following the trace of the crack without deviation. The use of rotary impact routing devices will not be permitted for
20、cleaning cracks.may be permitted if vertical-sided carbide tipped bits are used.1.3.2 Concrete SawProvide a self-propelled power saw with small diameter (152 mm 6 inches or less) water-cooled diamond or abrasive saw blades for cutting cracks to the depths and widths specified and for removing filler
21、 that is embedded in the cracks or adhered to the crack faces. The diameter of the saw blade shall be small enough to allow the saw to closely follow the trace of the crack.1.3.3 Sandblasting Equipment*NOTE: Sandblasting of cracks may not be permitted under certain conditions. Blowing sand and dust
22、may either violate atmospheric pollution statues, or may drift into areas where it would be objectionable. When sandblasting is prohibited, cleaning the cracks with waterblasting equipment or wire brushes may be substituted. If wire brushes are used, attention should be given to ensure that worn bru
23、shes are not used. Waterblasting equipment varies considerably with respect to design of wand, nozzle, water pressure, and water volume depending on the manufacturer. Consequently, the effectiveness of a particular set of equipment cannot be predicted. The Contractor should demonstrate its equipment
24、 to show that it will clean the crack satisfactorily before being allowed to proceed.*Include in the sandblasting equipment an air compressor, hose, and long-wearing venturi-type nozzle of proper size, shape and opening. The maximum nozzle opening shall not exceed 6.4 mm 1/4 inch. The air compressor
25、 shall be portable; and shall be capable of furnishing not less than 0.071 cubic meters/second 150 cfm and maintaining a line pressure of not less than 621 kPa 90 psi at the nozzle while in use. Demonstrate compressor capability under job conditions before approval. The compressor shall be equipped
26、with traps that will maintain the compressed air free of oil and water. The nozzle shall have an adjustable guide that will hold SECTION 32 01 17.16 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-the nozzle aligned with the crack about 25 mm 1
27、 inch above the pavement surface. Adjust the height, angle of inclination and the size of the nozzle as necessary to secure satisfactory results.1.3.4 Waterblasting EquipmentInclude with the waterblasting equipment a trailer-mounted water tank, pumps, high-pressure hose, wand with safety release cut
28、off control, nozzle, and auxiliary water resupply equipment. The water tank and auxiliary resupply equipment shall be of sufficient capacity to permit continuous operations. The hose, wand, and nozzle shall be capable of cleaning the crack faces and the pavement surface on both sides of the crack fo
29、r a width of at least 13 mm 1/2 inch. A pressure gauge mounted at the pump shall show at all times the pressure in kPapsi at which the equipment is operating.1.3.5 Hand Tools*NOTE: In areas that have cracks larger than 37 mm (1-1/2 inches), it may be necessary to employ other types of small tools to
30、 remove damaged asphalt or crack sealant material. Such tools should be carefully evaluated for potential damaging effects to adjacent pavement prior to approval for use. For repairing bituminous pavements, the Designer is referred to Technical Manual 5-624.*Hand tools may be used, when approved, fo
31、r removing defective sealant from cracks and repairing or cleaning the crack faces.1.3.6 Crack Sealing EquipmentProvide unit applicators, used for heating and installing the hot-poured crack sealant materials, that are mobile and equipped with a double-boiler, agitator-type kettle with an oil medium
32、 in the outer space for heat transfer; a direct-connected pressure-type extruding device with a nozzle shaped for inserting in the crack to be filled; positive temperature devices for controlling the temperature of the transfer oil and sealant; and a recording type thermometer for indicating the tem
33、perature of the sealant. Allow the sealant to circulate through the delivery hose and return to the inner kettle when not in use, due to the applicator unit design .1.4 SUBMITTALS*NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list
34、 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
35、“G” if the submittal item is not complex and can be reviewed through the Contractors SECTION 32 01 17.16 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Quality Control system. Only add a “G” if the submittal is sufficiently important or comple
36、x 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 following the “G“ designation to indicate the approving authority. Codes for Army projects using the Resident Management System (RMS) are:
37、 “AE“ for Architect-Engineer; “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 projects.Choose the fi
38、rst 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.information only. When used, a d
39、esignation 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-03 Product DataInstallation of SealantManufacturers instructions _ days prior to the use of the material
40、on the project. Installation of the material will not be allowed until the instructions are received.SD-04 SamplesMaterials; G; G, _Samples of the materials 60 _ days prior to their use on the project. No material will be allowed to be used until it has been approved.SD-06 Test ReportsTest Requireme
41、ntsReports of all tests. Perform testing of the materials in an approved, independent laboratory; submit certified copies of the test reports for approval _ days prior to the use of the materials at the job site. Samples will be retained by the Government for possible future testing, should the mate
42、rials appear defective during or after application.1.5 QUALITY ASSURANCETest the crack sealant and backup material, when required, for conformance SECTION 32 01 17.16 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-with the referenced applicabl
43、e material specification. The materials will be tested by the Government. The cost of the first test of samples will be borne by the Government. If the samples fail to meet specification requirements, replace the materials represented by the sample and test the new materials at the Contractors expense. Furnish samples of materials, in sufficient quantity to be tested upon request. Conformance with the test requirements of the laboratory tests specified will not constitute final acceptance of the materials. Final acceptance will be based on
