It is an art/science of materializing design/concept and optimizing for Prevention of Premature Pavement Distress and other facilities- R.Muniandy

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100%Concrete/Asphalt Temperature andMoisture Monitoring

Curing/setting MethodsThermal ShockHorizontal CrackingEarly Opening Traffic

TimeMaterial and Construction OptimizationTransporting/ PlacementEnvironmental ConstructionMaterials And Mixings

Project Requirements

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The IssueExample: Asphalt/Concrete mixtures: complex chemical and physical systemsVariety of ingredients & sourcesProportioning and mixing proceduresConstruction procedures

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The ProblemMaterial selection and mix design often are not integrated with construction practicesConstruction and materials testing have not kept up with technologyWe dont test the right thingsToo often tests dont relate to performance

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SolutionsCharacterize materials, compatibilities, and construction proceduresKey to increasing durabilityUnderstand properties and compatibilitiesIncreasing need for quick answers New procedures are needed to optimize Software can help organize the complexities

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Project ObjectivesConduct shadow demonstration projects, showcasing materials testing and construction practices, in each state /localityProduce a Practice Manual to document the

information gathered and test proceduresdevelopedVSA

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Managing PerformanceMaterial Selection and Interactions+Construction Practices+Environmental Affects+Project Requirements

=Resulting Performance

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Managing PerformancePerformance Factors +Prediction Tools+Measurements

=Optimization

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Performance FactorsWorkabilityStrength DevelopmentAir voids/density/stabilityPermeability/MrShrinkage

0Managing PerformancePrediction ToolsComputer-Based Guidelines for Job-Specific Optimization of Paving eg. (JKR/LLM/FHWA) HIPERPAVMeasurementWorkability: Variable Slope ApprenticeAir Void Characteristics: Air Void AnalyzerStrength: Maturity MeterCompatibility: Heat SignatureCuring: Conductivity Meter

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3 Stages of ConstructionDesign stageLaboratory mix designs

VerificationField Beginning of the project

Quality Control

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HIPERPAV (Prediction Tool to Help Achieve Construction Optimization) Predicts Controlling Cracking of PavementsPredict Impact of Adverse Weather on Construction of Pavement

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HIPERPAV

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