ECE 416_Lecture 6_PCC Properties (1) - LECTURE 6 CHARACTERIZATION OF PCC MATERIALS CHANG-SEON SHON PH.D ASSISTANT PROFESSOR DEPARTMENT OF CIVIL

ECE 416_Lecture 6_PCC Properties (1) - LECTURE 6...

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1 Lecture 06 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 6 C HARACTERIZATION OF PCC M ATERIALS Lecture 06 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 06 ECE 416: Transportation Engineering 3 P ORTLAND C EMENT C ONCRETE (PCC) S LAB IN R IGID P AVEMENT Portland Cement Concrete (PCC) Slab Compacted Subgrade Natural Subgrade Unbound Base/Sub-Base Course Rigid Pavement PCC Paving Procedures Lecture 06 ECE 416: Transportation Engineering 4 P ORTLAND C EMENT C ONCRETE (PCC) I NGREDIENTS – Aggregate Portland Cement – Water – Admixture Other additives P ROPERTIES – Strength Creep & Shrinkage – Durability Skid Resistance – Workability K EY C ONSIDERATIONS IN M IX D ESIGN Water-Cement Ratio (strength, porosity) Entrained air (air voids, porosity, workability) Aggregate gradation, size, & porosity
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3 Characterization of PCC Materials in AASHTO 1993 Guide 5 Lecture 06 ECE 416: Transportation Engineering 6  10 18 10 0.75 10 10 7 8.46 0.75 0.25 log 7.35 log 1 0.06 log 1.132 4.5 1.5 4.22 0.32 log 1.624 10 1 18.42 1 215.63 R o c d t c W Z S D PSI S C D p D J D E k D 1993 AASHTO D ESIGN E QUATION (R IGID P AVEMENT )
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4 Lecture 06 ECE 416: Transportation Engineering 7 P ROPERTIES OF PCC M ATERIALS (1993 G UIDE ) M ODULUS OF E LASTICITY (E) M ODULUS OF R UPTURE (R OR S C ’) E AND R ARE ALSO REQUIRED INPUTS TO THE MEPDG PROCEDURE Characterization of PCC Materials in MEPDG 8
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5 Lecture 06 ECE 416: Transportation Engineering 9 Material properties required for computing pavement responses
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