ECE 416_Lecture 2_Performance Indicators - LECTURE 2 MEASURING PAVEMENT PERFORMANCE CHANG-SEON SHON PH.D ASSISTANT PROFESSOR DEPARTMENT OF CIVIL

ECE 416_Lecture 2_Performance Indicators - LECTURE 2...

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1 Lecture 02 ECE 416: Transportation Engineering 1 C HANG -S EON S HON , P H .D., A SSISTANT P ROFESSOR D EPARTMENT OF C IVIL E NGINEERING N AZARBAYEV U NIVERSITY 2015 F ALL L ECTURE 2 M EASURING P AVEMENT P ERFORMANCE Lecture 02 ECE 416: Transportation Engineering 2 Design Considerations Materials Design Procedures Additional Topics Performance Indicators Traffic Inputs by AASHTO 1993 Traffic Inputs by MEPDG Subgrade & Unbound Materials Rigid Pavement: PCC Materials Flexible Pavement: HMA Materials Flexible Pavement Design by AASHTO 1993 Flexible Pavement Design by MEPDG Rigid Pavement Design by AASHTO 1993 Rigid Pavement Design by MEPDG Pavement Design Reliability Life Cycle Cost Analysis/Perpetual Pavement Drainage/Tire Noise/Surface Friction Geometric Design of Highway 2
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2 Lecture 02 ECE 416: Transportation Engineering 3 D ESCRIBE PAVEMENT DETERIORATION MECHANISMS I DENTIFY PERFORMANCE INDICATORS AND PRIMARY DISTRESS TYPES FOR : Hot-mix asphalt (HMA) pavement Portland cement concrete (PCC) pavement D ESCRIBE HOW PAVEMENT PERFORMANCE INDICATORS AND DISTRESS ARE USED IN THE DESIGN PROCESS L EARNING O BJECTIVES Lecture 02 ECE 416: Transportation Engineering 4 S TRUCTURAL VS . F UNCTIONAL Structural : Deterioration of the pavement’s load-carrying capacity Functional : Deterioration of ride quality and safety L OAD - VS . N ON -L OAD -A SSOCIATED Load-Associated : Caused by traffic loads through interaction with climate, materials and foundation Non-Load-Associated : Caused by climate, materials, or construction C ATEGORIES OF P AVEMENT D ISTRESS Catalyst of deterioration Loading/Traffic Environment / Aging Material problems Water infiltration
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3 Lecture 02 ECE 416: Transportation Engineering 5 A LLIGATOR CRACKING ( BOTTOM - UP FATIGUE CRACKING ) LONGITUDINAL CRACKING ( SURFACE - DOWN FATIGUE CRACKING ) B LOCK CRACKING E DGE CRACKING R EFLECTION CRACKING P OTHOLES R UTTING ( PERMANENT DEFORMATION ) HMA P AVEMENT D ISTRESS T YPES Sources of distress photos: majority obtained from the National Highway Institute (NHI) & FHWA B LEEDING / FLUSHING R AVELING / WEATHERING L ANE - TO - SHOULDER DROP - OFF R OUGHNESS S URFACE FRICTION LOSS M OISTURE DAMAGE S TRIPPING S HOVING Lecture 02 ECE 416: Transportation Engineering 6 P ROGRESSION OF HMA P AVEMENT D ETERIORATION 6 Time SI 0 100 Min Allowable
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4 Lecture 02 ECE 416: Transportation Engineering 7 A LLIGATOR (F ATIGUE ) C RACKING – L OAD R ELATED D ISTRESS HMA P AVEMENT D ETERIORATION Lecture 02 ECE 416: Transportation Engineering 8 A LLIGATOR (F ATIGUE ) C RACKING – L OAD R ELATED D ISTRESS HMA P AVEMENT D ETERIORATION
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5 Lecture 02 ECE 416: Transportation Engineering 9 A LLIGATOR (F ATIGUE ) C RACKING – L OAD R ELATED D ISTRESS HMA P AVEMENT D ETERIORATION Lecture 02 ECE 416: Transportation Engineering 10 R UTTING (P ERMANENT D EFORMATION ) – L OAD R ELATED D ISTRESS HMA P AVEMENT D ETERIORATION Subgrade Soil Base/Subbase Surface SUB d SUB Wheel Load Load Causes Permanent Compressive Strain at Top of Subgrade
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