Lesson 1Overview of asphalt pavement behavior and pothole formation mechanisms (fatigue, raveling, water infiltration)Dis part review asphalt road structure an how traffic, age, an water lead to pothole, cover fatigue crack, ravelin, strippin, base fail, an drainage issue so crew can match repair to root cause.
Asphalt layers and pavement structureFatigue cracking and pothole evolutionRaveling, oxidation, and surface wearWater infiltration and stripping damageBase, subgrade, and drainage problemsLesson 2Tools, equipment, and materials checklist (inventory of hand tools, saws, jackhammers, rakes, vibratory plate/rammer/roller, tack coats, hot or cold asphalt mixes, backer/aggregate, safety equipment)Dis part list an explain must-have tool, equipment, an material fi pothole repair, includin cuttin tool, compaction device, tack sprayer, hot an cold mix, aggregate, an safety gear, wid tip fi check, store, an ready.
Hand tools for cutting and cleaningSaws, breakers, and coring equipmentCompaction plates, rammers, and rollersTack coats, mixes, and aggregate typesSafety gear and traffic control devicesLesson 3Compaction techniques and acceptance criteria (layers, target density, visual and simple tests)Dis part cover proper compaction fi asphalt patch, includin lift thickness, pass number, equipment pick, target density, joint treat, an simple field check fi verify patch steady an less future fail.
Lift thickness and compaction sequenceSelecting rollers, plates, or rammersRolling patterns and number of passesChecking density with simple field testsVisual signs of under or over compactionLesson 4Step-by-step semi-permanent asphalt pothole repair: cutting and shaping, cleaning, drying, tack application, material selection, placement, compaction, edge finishingDis part show detail field step fi semi-permanent pothole repair, cover area mark, cut an shape, clean an dry, tack coat, mix pick, place inna lift, compaction, edge seal, an final surface check.
Marking and squaring patch boundariesCutting, trimming, and shaping the holeCleaning, drying, and moisture controlTack coat type, rate, and applicationMix placement, lift thickness, and levelingLesson 5Selection of repair strategy: temporary vs permanent, throw-and-roll, semi-permanent, full-depth patching—criteria for choiceDis part compare temporary an permanent pothole repair option, includin throw-an-roll, semi-permanent, an full-depth patch, an explain how road state, traffic, weather, an resource guide best method pick.
When to use temporary emergency patchesCriteria for semi-permanent patch selectionWhen full-depth patching is requiredTraffic level and safety considerationsBudget, crew, and equipment constraintsLesson 6Effect of weather and traffic on method selection and timing (temperature limits for hot mix, rain mitigation, curing time, night vs day work)Dis part check how temperature, moisture, an traffic load affect repair timin an method, includin hot-mix temp limit, rain an freeze-thaw risk, curin need, lane close window, an night vs day work.
Temperature limits for hot and cold mixesRain, snow, and surface moisture risksCuring time before opening to trafficNight versus daytime work trade-offsSeasonal planning for patch programsLesson 7Maintenance recordkeeping for patch performance (date, mix, crew, weather, observed defects on follow-up inspections)Dis part explain how fi record patch work fi track performance over time, includin date, place, material, crew, weather, an follow-up check, fi agency refine method an justify budget.
Standard patch report form fieldsDocumenting mix type and sourceRecording crew, equipment, and hoursWeather and site condition recordsScheduling and logging follow-up visits
