1、*USACE / NAVFAC / AFCESA / NASA UFGS-32 01 19 (August 2008)-Preparing Activity: USACE SupersedingUFGS-32 01 19 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2008*SECTION TABLE OF CONTENTSDIVISION 32 - EXTERIOR IMPROVEMENTSSECTION 32 01 19FIELD MO
2、LDED SEALANTS FOR SEALING JOINTS IN RIGID PAVEMENTS08/08PART 1 GENERAL1.1 UNIT PRICES1.1.1 Measurement1.1.2 Payment1.2 REFERENCES1.3 SYSTEM DESCRIPTION1.3.1 Joint Cleaning Equipment1.3.1.1 Tractor-Mounted Routing Tool1.3.1.2 Concrete Saw1.3.1.3 Sandblasting Equipment1.3.1.4 Waterblasting Equipment1.
3、3.1.5 Hand Tools1.3.2 Sealing Equipment1.3.2.1 Hot-Poured Sealing Equipment1.3.2.2 Two-Component, Cold-Applied, Machine Mix Sealing Equipment1.3.2.3 Two-Component, Cold-Applied, Hand-Mix Sealing Equipment1.3.2.4 Cold-Applied, Single-Component Sealing Equipment1.4 SUBMITTALS1.5 QUALITY ASSURANCE1.5.1
4、 Safety1.5.2 Test Requirements1.5.3 Trial Joint Sealant Installation1.6 DELIVERY, STORAGE, AND HANDLING1.7 ENVIRONMENTAL REQUIREMENTSPART 2 PRODUCTS2.1 SEALANTS2.2 PRIMERS2.3 BACKUP MATERIALS2.4 BOND BREAKING TAPESPART 3 EXECUTION3.1 PREPARATION OF JOINTSSECTION 32 01 19 Page 1Provided by IHSNot for
5、 ResaleNo reproduction or networking permitted without license from IHS-,-,-3.1.1 Existing Sealant Removal3.1.2 Sawing3.1.2.1 Refacing of Joints3.1.2.2 Refacing of Random Cracks3.1.3 Sandblasting3.1.4 Back-Up Material3.1.5 Bond Breaking Tape3.1.6 Rate of Progress of Joint Preparation3.2 PREPARATION
6、OF SEALANT3.2.1 Hot-Poured Sealants3.2.2 Type M Sealants3.2.3 Type H Sealants3.2.4 Single-Component, Cold-Applied Sealants3.3 INSTALLATION OF SEALANT3.3.1 Time of Application3.3.2 Sealing Joints3.4 INSPECTION3.4.1 Joint Cleaning3.4.2 Joint Sealant Application Equipment3.4.3 Joint Sealant3.5 CLEAN-UP
7、- End of Section Table of Contents -SECTION 32 01 19 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-32 01 19 (August 2008)-Preparing Activity: USACE SupersedingUFGS-32 01 19 (April 2006)UNIFIED FACILITIES G
8、UIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2008*SECTION 32 01 19FIELD MOLDED SEALANTS FOR SEALING JOINTS IN RIGID PAVEMENTS08/08*NOTE: This guide specification covers the requirements for field molded sealants in sealing or resealing joints in rigid pavements on airfields, r
9、oads, streets, and other areas.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 n
10、ot 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 telephone number, is on the Internet.Recommended changes to
11、 a UFGS should be submitted as a Criteria Change Request (CCR).*PART 1 GENERAL*NOTE: In preparing contract specifications for concrete pavements the designer will use UFC 3-250-04FA Standard Practice for Concrete Pavements.*1.1 UNIT PRICES*NOTE: Delete this paragraph when lump sum bidding is used.*S
12、ECTION 32 01 19 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 paid for by actual measurement of the number of linear meters feet of in-place material that has been approved by
13、 the Contracting Officer.1.1.2 PaymentPayment will be made at the contract unit bid prices per linear meter foot for the sealing items scheduled. The unit bid prices will include the cost of all labor, materials, and the use of all equipment and tools required to complete the work.1.2 REFERENCES*NOT
14、E: 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 Check Reference feature when yo
15、u 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 this section of the project specifi
16、cation 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 (ASTM)ASTM C 509 (2006) Elastomeric
17、 Cellular Preformed Gasket and Sealing MaterialASTM D 5893 (2004) Cold Applied, Single Component, Chemically Curing Silicone Joint Sealant for Portland Cement Concrete PavementsASTM D 6690 (2007) Joint and Crack Sealants, Hot Applied, for Concrete and Asphalt PavementsASTM D 7116 (2005) Standard Spe
18、cification for Joint Sealants, Hot Applied, Jet Fuel Resistant Types, for Portland Cement ConcreteASTM D 789 (2007) Determination of Relative Viscosity and Moisture Content of Polyamide (PA)SECTION 32 01 19 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr
19、om IHS-,-,-U.S. ARMY CORPS OF ENGINEERS (USACE)COE CRD-C 525 (1989) Test Method for Evaluation of Hot-Applied Joint Sealants for Bubbling Due to HeatingU.S. GENERAL SERVICES ADMINISTRATION (GSA)FS SS-S-200 (Rev E; Am 2) Sealant, Joint, Two-Component, Jet-Blast-Resistant, Cold-Applied, for Portland C
20、ement Concrete Pavement1.3 SYSTEM DESCRIPTIONMachines, tools, and equipment used in the performance of the work required by this section shall be approved before the work is started maintained in satisfactory condition at all times.1.3.1 Joint Cleaning Equipment1.3.1.1 Tractor-Mounted Routing ToolPr
21、ovide a routing tool, used for removing old sealant from the joints, of such shape and dimensions and so mounted on the tractor that it will not damage the sides of the joints. The tool shall be designed so that it can be adjusted to remove the old material to varying depths as required. The use of
22、V-shaped tools or rotary impact routing devices will not be permitted. Hand-operated spindle routing devices may be used to clean and enlarge random cracks.1.3.1.2 Concrete SawProvide a self-propelled power saw, with water-cooled diamond or abrasive saw blades, for cutting joints to the depths and w
23、idths specified or for refacing joints or cleaning sawed joints where sandblasting does not provide a clean joint.1.3.1.3 Sandblasting Equipment*NOTE: Sandblasting equipment with a 6.4 mm (1/4 inch) nozzle requires at least 64.7 liters per second (137 cubic feet per minute) of air to function effici
24、ently. A larger nozzle would not serve any useful purpose in cleaning joints.*Include with the sandblasting equipment an air compressor, hose, and long-wearing venturi-type nozzle of proper size, shape and opening. The maximum nozzle opening should not exceed 6.4 mm 1/4 inch. The air compressor shal
25、l be portable and capable of furnishing not less than 71 L/s 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 with traps that will maintain th
26、e compressed air free of oil and water. The nozzle shall have an adjustable guide that will hold the nozzle aligned with the joint approximately 25 mm 1 inch above the pavement surface. Adjust the height, angle of inclination and the size of the nozzle as necessary to SECTION 32 01 19 Page 5Provided
27、 by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-secure satisfactory results.1.3.1.4 Waterblasting Equipment*NOTE: Waterblasting equipment varies considerably with respect to design of wand, nozzle, water pressure, and water volume, depending upon the manufac
28、turer. Consequently, the effectiveness of a particular set of equipment cannot be predicted. Delete this paragraph if waterblasting will not be used.*Include with the waterblasting equipment a trailer-mounted water tank, pumps, high-pressure hose, wand with safety release cutoff control, nozzle, and
29、 auxiliary water resupply equipment. Provide water tank and auxiliary resupply equipment of sufficient capacity to permit continuous operations. The nozzle shall have an adjustable guide that will hold the nozzle aligned with the joint approximately 25 mm 1 inch above the pavement surface. Adjust th
30、e height, angle of inclination and the size of the nozzle as necessary to obtain satisfactory results. A pressure gauge mounted at the pump shall show at all times the pressure in kPa psi at which the equipment is operating.1.3.1.5 Hand Tools*NOTE: Where spalled joint edges have not been repaired pr
31、ior to any previous sealing, it may be necessary for the Contractor to employ other types of small tools for the repair work. Such tools should be carefully evaluated for potential spalling effects prior to approval for use. For repairing concrete pavements adjacent to joints, the designer is referr
32、ed to Section 32 01 28 PATCHING OF RIGID PAVEMENTS, and to Technical Manual 5-822-9.*Hand tools may be used, when approved, for removing defective sealant from a crack and repairing or cleaning the crack faces.1.3.2 Sealing Equipment*NOTE: Delete the inappropriate paragraphs.*1.3.2.1 Hot-Poured Seal
33、ing EquipmentThe unit applicators used for heating and installing ASTM D 6690 ASTM D 7116 joint sealant materials shall be mobile and shall be equipped with a double-boiler, agitator-type kettle with an oil medium in the outer space for heat transfer; a direct-connected pressure-type extruding devic
34、e with a nozzle shaped for inserting in the joint to be filled; positive temperature devices for controlling the temperature of the transfer oil and sealant; and a recording type thermometer for indicating the temperature of the sealant. The applicator unit shall be designed so that the sealant will
35、 circulate through the delivery hose and return to the inner kettle SECTION 32 01 19 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-when not in use.1.3.2.2 Two-Component, Cold-Applied, Machine Mix Sealing EquipmentProvide equipment used for pr
36、oportioning, mixing, and installing FS SS-S-200Type M joint sealants designed to deliver two semifluid components through hoses to a portable mixer at a preset ratio of 1 to 1 by volume using pumps with an accuracy of plus or minus 5 percent for the quantity of each component. The reservoir for each
37、 component shall be equipped with mechanical agitation devices that will maintain the components in a uniform condition without entrapping air. Incorporate provisions to permit thermostatically controlled indirect heating of the components, when required. However, immediately prior to proportioning
38、and mixing, the temperature of either component shall not exceed 32.2 degrees C 90 degrees F. Provide screens near the top of each reservoir to remove any foreign particles or partially polymerized material that could clog fluid lines or otherwise cause misproportioning or improper mixing of the two
39、 components. Provide equipment capable of thoroughly mixing the two components through a range of application rates of 37.8 to 189 L 10 to 60 gallons per hour and through a range of application pressures from 345 kPa to 10.3 MPa 50 to 1500 psi as required by material, climatic, or operating conditio
40、ns. Design the mixer for the easy removal of the supply lines for cleaning and proportioning of the components. The mixing head shall accommodate nozzles of different types and sizes as may be required by various operations. The dimensions of the nozzle shall be such that the nozzle tip will extend
41、into the joint to allow sealing from the bottom of the joint to the top. Maintain the initially approved equipment in good working condition, serviced in accordance with the suppliers instructions, and unaltered in any way without obtaining prior approval.1.3.2.3 Two-Component, Cold-Applied, Hand-Mi
42、x Sealing EquipmentMixing equipment for FS SS-S-200 Type H sealants shall consist of a slow-speed electric drill or air-driven mixer with a stirrer in accordance with the manufacturers recommendations.1.3.2.4 Cold-Applied, Single-Component Sealing Equipment*NOTE: Some ASTM D 5893 sealants cure when
43、exposed to moisture. When the sealant is moisture sensitive it is necessary to use Teflon-lined hoses to prevent the sealant from curing in the hoses.*The equipment for installing ASTM D 5893 single component joint sealants shall consist of an extrusion pump, air compressor, following plate, hoses, and nozzle for transferring the sealant from the storage container into the joint opening. The dimension of the nozzle shall be such that the tip of the
