Field Operations Guide - Kentucky Transportation Cabinet
Field Operations Guide - Kentucky Transportation Cabinet Field Operations Guide - Kentucky Transportation Cabinet
FOG-303ChapterSURFACE(A000)SubjectAbnormal Repairs, Removing & Replacing(A030)DESCRIPTIONRemoving base and sub-base materials and replacing with bituminousand aggregate materialsReplacement of wearing surface is part of this activity, not a separateactivity. This activity includes temporary or stop-gap measures tomaintain traffic when a surface is under severe distress. This would berough-patching with bituminous mix or spreading aggregate on roadspreviously bituminous or concrete. It would also include the same typeof operations on traffic bound maintenance (TBM) roads. (SectionRequired)SCHEDULINGSchedule this work year-round. The temperature conditions may dictatethe type of material to use.RECOMMENDEDPERSONNEL Highway Superintendent (1)Highway Equipment Operator (7)RECOMMENDEDEQUIPMENT Pickup truck or crew cab (1)Front-end loader or backhoe orgradall and/or milling machine (1)Distributor (optional) (1)Dump truck (1)Compressor (1)Pavement breaker* (1)Roller (1)RECOMMENDED*Use two or more pavement breakers and possibly a jackhammer whenencountering old concrete base. Also, use more breakers at any time thebreaking operation becomes the production control factor.MATERIALS Bituminous mix (16 tons)Aggregate(24 tons)Tack oil(24 gallons)10/11 Page 1 of 2
SURFACE (A000)Abnormal Repairs, Removing & Replacing (A030)FOG-303ENVIRONMENTALIMPACTS Precondition equipment before loading bituminous material. Do not use diesel fuel. Return tool-cleaning solvents to the lot. Follow procedures in the Environmental Handbook (2.1.1, “CleaningAsphalt Tools and Equipment”) for cleaning at the end of the job.PERFORMANCEVALUESFUNCTION Hours Per Unit Daily Expectation Accomplishment UnitFE01N/AN/ATonRECOMMENDEDPROCEDURE1. Place traffic-control devices as necessary.2. Use compressor and air tools as needed to dig out unsuitable materialand square up area.3. Remove broken and unusable material by hand, front end loader, orpavement breaker, depending on the size of the patch and theamount.4. Tack with liquid asphalt. Be sure to apply tack to total area replaced.5. Backfill sub-base, if necessary, with aggregate or bituminous material.6. Compact replaced material after each 2-inch lift or portion thereof.7. Roll and compact final surface to match existing surrounding grade.8. Properly dispose of all undesirable and left-over material according tothe Environmental Handbook.9. Remove traffic-control devices.Note: Frequently, this operation requires the installation of Frenchdrains or underdrains to release water from the base or sub-base,especially when previous repair did not solve the problem.Special Note: Determine accomplishment before leaving job site.10/11 Page 2 of 2
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FOG-303ChapterSURFACE(A000)SubjectAbnormal Repairs, Removing & Replacing(A030)DESCRIPTIONRemoving base and sub-base materials and replacing with bituminousand aggregate materialsReplacement of wearing surface is part of this activity, not a separateactivity. This activity includes temporary or stop-gap measures tomaintain traffic when a surface is under severe distress. This would berough-patching with bituminous mix or spreading aggregate on roadspreviously bituminous or concrete. It would also include the same typeof operations on traffic bound maintenance (TBM) roads. (SectionRequired)SCHEDULINGSchedule this work year-round. The temperature conditions may dictatethe type of material to use.RECOMMENDEDPERSONNEL Highway Superintendent (1)Highway Equipment Operator (7)RECOMMENDEDEQUIPMENT Pickup truck or crew cab (1)Front-end loader or backhoe orgradall and/or milling machine (1)Distributor (optional) (1)Dump truck (1)Compressor (1)Pavement breaker* (1)Roller (1)RECOMMENDED*Use two or more pavement breakers and possibly a jackhammer whenencountering old concrete base. Also, use more breakers at any time thebreaking operation becomes the production control factor.MATERIALS Bituminous mix (16 tons)Aggregate(24 tons)Tack oil(24 gallons)10/11 Page 1 of 2
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