construction specification for sealing or resealing of joints ... - Ontario
construction specification for sealing or resealing of joints ... - Ontario
construction specification for sealing or resealing of joints ... - Ontario
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369.09.01.01 Re<strong>sealing</strong> <strong>of</strong> Joints and Sealing <strong>or</strong> Re<strong>sealing</strong> <strong>of</strong> Cracks369.09.02 Plan Quantity Payment369.10 BASIS OF PAYMENT369.10.01 Re<strong>sealing</strong> <strong>of</strong> Joints and Sealing <strong>or</strong> Re<strong>sealing</strong> <strong>of</strong> Cracks - Item369.01 SCOPEThis <strong>specification</strong> covers the requirements <strong>f<strong>or</strong></strong> <strong>sealing</strong> and re<strong>sealing</strong> <strong>of</strong> <strong>joints</strong> and cracks in concretepavement.369.02 REFERENCESThis <strong>specification</strong> refers to the following standards, <strong>specification</strong>s <strong>or</strong> publications:<strong>Ontario</strong> Provincial Standard Specification, General:OPSS 180Management and Disposal <strong>of</strong> Excess Material<strong>Ontario</strong> Provincial Standard Specification, Construction:OPSS 929Abrasive Blast Cleaning - Concrete Construction<strong>Ontario</strong> Provincial Standard Specification, Materials:OPSS 1212Hot-Poured Rubberized Asphalt Joint Sealing CompoundAmerican Society <strong>f<strong>or</strong></strong> Testing & Materials:ASTM D 2628-91 - Pre<strong>f<strong>or</strong></strong>med Polychl<strong>or</strong>oprene Elastomeric Joint Seals <strong>f<strong>or</strong></strong> Concrete Pavements369.03 DEFINITIONSF<strong>or</strong> the purpose <strong>of</strong> this <strong>specification</strong> the following definitions shall apply.Backer Rod: means a compressible material inserted into the reservoir cut to achieve the requiredshape fact<strong>or</strong> <strong>f<strong>or</strong></strong> the sealant. Materials are typically made <strong>of</strong> polyethylene foam, crosslinked polyethylenefoam <strong>or</strong> polyurethane.Reservoir: means a sawcut cavity <strong>of</strong> specific dimensions designed to receive sealant.Shape fact<strong>or</strong>: means the ratio <strong>of</strong> depth to width <strong>of</strong> a field poured liquid sealant within the reservoir.Page 2 Rev. Date: 03/1998 OPSS 369
369.05 MATERIALS369.05.01 SealantsSealants shall be either liquid <strong>or</strong> pre<strong>f<strong>or</strong></strong>med compression seals. Liquid sealants shall be acc<strong>or</strong>ding toOPSS 1212. Pre<strong>f<strong>or</strong></strong>med compression seals shall meet the manufacturers’ requirements acc<strong>or</strong>ding toASTM D 2628.369.06 EQUIPMENT369.06.01 Diamond SawA reservoir shall be created using a diamond bladed saw. Routers shall not be used <strong>f<strong>or</strong></strong> creating thereservoir.369.06.02 Heating KettleWhere required, the heating kettle shall be designed and operated to ensure uni<strong>f<strong>or</strong></strong>m heat, and to agitateand prevent overheating <strong>of</strong> the sealant.369.06.03 Compressed Air LanceThe hot compressed air lance shall have a discharge air temperature greater than 1000°C and an airvelocity greater than 1000 metres per second.369.07 CONSTRUCTION369.07.01 Removal <strong>of</strong> Existing SealantExisting sealant shall be removed without damaging the adjacent joint <strong>or</strong> crack faces. Residual sealantshall be removed by sawcutting to create clean faces to the required reservoir dimensions.369.07.02 ReservoirSaw cutting shall be used to create a cavity <strong>of</strong> specific dimensions designed to receive sealant.369.07.03 CleaningImmediately after the sawing operation, reservoirs shall be flushed with water in one direction to removethe slurry. Immediately pri<strong>or</strong> to <strong>sealing</strong> operations, all joint faces shall be abrasive blast cleanedacc<strong>or</strong>ding to OPSS 929. The reservoir shall be blown clean and dried using an oil free hot compressedair lance.369.07.04 Backer Rod InstallationBacker rods shall have a minimum diameter <strong>of</strong> 25% greater than the reservoir width. They shall beinstalled immediately after cleaning and be<strong>f<strong>or</strong></strong>e sealant installation. Backer rods are inserted uni<strong>f<strong>or</strong></strong>mly tothe required depth to achieve the required shape fact<strong>or</strong>.The backer rod shall not be punctured <strong>or</strong> stretched during the installation process.Page 3 Rev. Date: 03/1998 OPSS 369
369.07.05 Sealant Installation369.07.05.01 GeneralTransverse <strong>joints</strong> and cracks shall be filled pri<strong>or</strong> to longitudinal <strong>joints</strong>. Sealant shall be installed acc<strong>or</strong>dingto the manufacturers’ recommendations.Grinding and milling operations shall be completed pri<strong>or</strong> to sealant placement.Sealant shall be placed acc<strong>or</strong>ding to the manufacturers' <strong>specification</strong>s.369.07.05.02 Liquid SealantThe sealant shall be placed following the hot lance treatment by a manual pouring cone, <strong>or</strong> hose andwand fitted with proper size tip from a low pressure pump connected to the heating kettle.The tip <strong>of</strong> the cone <strong>or</strong> wand shall be placed to the top <strong>of</strong> the backer rod to ensure uni<strong>f<strong>or</strong></strong>m application.The reservoir shall be filled with sealant so that upon cooling, the sealant shall be 3 to 6 mm recessedbelow the adjacent pavement surface.If after the initial placement, the material subsides below the required recess depths, additional sealantshall be placed.Sealant damaged by <strong>construction</strong> traffic <strong>or</strong> Contract<strong>or</strong>'s operations shall be replaced by the Contract<strong>or</strong> atthe Contract<strong>or</strong>'s expense.Any spilled material <strong>or</strong> excess material in the <strong>joints</strong> <strong>or</strong> cracks shall be removed immediately and thepavement surface cleaned.369.07.05.03 Compression SealAfter final cleaning <strong>of</strong> the reservoir, the lubricant adhesive shall be applied to the seal and the seal shallbe installed acc<strong>or</strong>ding to the manufacturers' <strong>specification</strong>s. During installation, twisting, nicking <strong>or</strong> otherdamage to the seal shall be avoided.369.07.06 Management and Disposal <strong>of</strong> Excess MaterialManagement and disposal <strong>of</strong> excess material shall be acc<strong>or</strong>ding to OPSS 180.369.08 QUALITY ASSURANCEDuring the process <strong>of</strong> placement the Contract<strong>or</strong> shall, upon request by the Contract Administrat<strong>or</strong>,provide a sample <strong>of</strong> the seal <strong>or</strong> sealant <strong>f<strong>or</strong></strong> testing.Page 4 Rev. Date: 03/1998 OPSS 369
369.09 MEASUREMENT OF PAYMENT369.09.01 Actual Measurement369.09.01.01 Re<strong>sealing</strong> <strong>of</strong> Joints and Sealing <strong>or</strong> Re<strong>sealing</strong> <strong>of</strong> Cracks in ConcretePavementMeasurement <strong>f<strong>or</strong></strong> re<strong>sealing</strong> <strong>of</strong> <strong>joints</strong> and <strong>sealing</strong> <strong>or</strong> re<strong>sealing</strong> <strong>of</strong> cracks in concrete pavement will be madein linear metres.369.09.02 Plan Quantity PaymentWhen measurement is by Plan Quantity, such measurement will be based on the units shown in theclauses under Actual Measurement.369.10 BASIS OF PAYMENT369.10.01 Re<strong>sealing</strong> <strong>of</strong> Joints and Sealing <strong>or</strong> Re<strong>sealing</strong> <strong>of</strong> Cracks in ConcretePavement - ItemPayment at the contract price <strong>f<strong>or</strong></strong> the above w<strong>or</strong>k shall be full compensation <strong>f<strong>or</strong></strong> all labour, equipment andmaterial required to do the w<strong>or</strong>k <strong>of</strong> re<strong>sealing</strong> <strong>of</strong> <strong>joints</strong> and <strong>sealing</strong> <strong>or</strong> re<strong>sealing</strong> <strong>of</strong> cracks in concretePage 5 Rev. Date: 03/1998 OPSS 369
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