00206194

Component

http://onlinepubs.trb.org...ubs/hrr/1963/40/40-002.pdf

SYSTEMATIC SURVEYS ARE NEEDED OF AIRFIELD PAVEMENTS TO OBTAIN INFORMATION ON THEIR FUNCTIONAL VALUE AND THEIR SERVICE BEHAVIOR. THE NEED IS TWOFOLD' FIRST, TO ESTABLISH THE SUITABILITY OF A PAVEMENT TO CARRY LOADS WITHOUT DISTRESS, AND SECOND, TO ANALYZE THE CONDITION OF A PAVEMENT FROM ITS SURFACE APPEARANCE AND SMOOTHNESS. BOTH PARTS ARE IMPORTANT BECAUSE THEY TEST THE VALIDITY OF THE DESIGN PROCEDURE. EVALUATION SURVEYS ARE PRIMARILY POINTED AT DETERMINING THE STRENGTH OF MATERIALS. A CONDITION REPORT ALSO PROVIDES INFORMATION ON THE STRENGTH OF MATERIALS, BUT IT IS PRIMARILY POINTED TOWARD APPEARANCE, SMOOTHNESS, AND INCIPIENT AND LOCALIZED DEFECTS OR FAILURES. A SPECIAL CASE FOR CONDITION SURVEYS IS THE FAILURE SURVEY TO DETERMINE THE CAUSE OF A PAVEMENT FAILURE, REMEDIAL ACTION AND NECESSARY STEPS TO PREVENT RECURRENCE. ANOTHER KIND OF CONDITION SURVEY IS THE DETAILED FOLLOW-UP ON AN EXPERIMENTAL SECTION OR A SECTION SUBJECTED TO SPECIAL TRAFFIC. THE ENGINEER NEEDS TO KNOW THE PHYSICAL STATE AND STRENGTH OF A PAVEMENT BOTH TO CHECK THE DESIGN AND TO FURNISH THE USING AGENCIES WITH GUIDANCE ON HOW TO USE AVAILABLE FACILITIES. AN EVALUATION IS GIVEN WHICH INCLUDES ALLOWABLE LOADS, TIRE PRESSURES, LOADING GEAR CONFIGURATION AND ALLOWABLE NUMBER OF LOAD APPLICATIONS. THESE VALUES ARE OBTAINED BY TESTING EACH OF THE EXISTING PAVEMENT LAYERS FOR STRENGTH, THICKNESS AND COMPACTION AND WORKING THE DESIGN BACKWARDS TO DERIVE THE LOAD CARRYING ABILITY OF THE PAVEMENT.

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01410009

pp 4-5

1963

Highway Research Record

Digital/other

Airports; Condition surveys; Defects; Evaluation; Maintenance management; Pavement design; Pavement distress; Pavement maintenance; Pavement performance; Pavements; Prevention; Smoothness; Strength of materials; Utilization

Guidance

Aviation; Highways; Pavements; Research; Security and Emergencies; Terminals and Facilities

TRIS, TRB

Dec 12 1994 12:00AM

• ANALYSIS AND USE OF CONDITION DATA IN THE DESIGN OF PAVEMENTS
• MEASUREMENTS FOR DETERMINING FLEXIBLE PAVEMENT CONDITION
• PAVEMENT MAINTENANCE
• RIGID PAVEMENT CONDITION SURVEYS
• SERVICEABILITY RATINGS OF HIGHWAY PAVEMENTS
• THE NEED FOR MAKING CONDITION SURVEYS OF HIGHWAYS
• USE OF PAVEMENT CONDITION DATA IN HIGHWAY PLANNING AND ROAD LIFE STUDIES
• USE OF PAVEMENT CONDITION DATA TO PREDICT VEHICLE BEHAVIOR