This manual gives the procedure for performing a pavement condition survey at all airfields with present or potential Army or Air Force missions. It is intended for use by all personnel responsible for such surveys. The airfield pavement condition survey is a visual inspection of both rigid and flexible pavement for signs of pavement distress. The pavement condition index (PCI) is a numerical rating which indicates the type and severity of the inspected distress. The airfield condition survey and the resulting PCI are the primary means of obtaining and recording important airfield pavement performance data. This manual describes the condition survey of both flexible pavements (all pavements with conventional bituminous concrete surfaces) and rigid pavements (jointed portland cement concrete pavements with joint spacing not exceeding 25 feet), and the procedure for determining the PCI of pavement inspected.
This handbook contains information on materials, equipment, and procedures for repairing asphalt cement concrete (ACC) pavements. Problem areas are also presented for the types of maintenance and repair of ACC pavements.
The purpose of maintenance and repair (M&R) of asphalt pavements is to extend the useful life of the pavement, maintain a smooth riding surface, and prevent water from entering the underlying soil. Limited manpower and resources have increased the importance of M&R to the life of a pavement. To keep a pavement in the best possible condition, it is important to use an effective pavement management and inspection system. As pavements are repaired, it is extremely important to analyse and repair the “true cause” of the pavement distress and not just repair the distress. The intended function of pavements depends on proper and timely maintenance and repair.
This handbook contains information on materials, equipment, and procedures used to clean and seal cracks in asphalt cement concrete pavements. Crack repair problem areas are also presented.
The purpose of sealing cracks in asphalt concrete pavements is to protect the pavement structure from premature failure. Unsealed cracks allow water intrusion and debris retention in the crack opening. Water intrusion in the cracks penetrates into the base and subbase materials creating the potential problem of a loss of strength in these materials. The weakened pavement structure can result in load-related failures such as alligator cracking. The debris retention can cause the pavement to “push up” at the edges of the crack when the pavement expands due to thermal changes. This decreases the rideability of the pavement surface. These failures and deficiencies increase the life-cycle cost of the pavements by requiring increased maintenance.
This handbook contains information on current (September 1998) practices for the repair of cracks and spalls in concrete pavements as well as on the selection of materials and equipment. This handbook is intended for use as a field handbook for airfield concrete pavement repair for all U.S. Navy, Army, and Air Force facilities; however, the techniques for repair can be used for other concrete pavements as well.
This handbook describes methods and procedures for maintenance and repair of concrete pavements. Since surface failure must be corrected at the source, probable causes are discussed and repair measures described. The principals outlined apply to reinforced and non-reinforced pavements for roads, airfields, and parking and open-storage areas. Normal maintenance on concrete pavements consists principally of the care of joints, sealing of cracks, replacement of random broken slabs or similar sections, and the correction of minor settlement and drainage faults. Repair consists of the work required to restore a distressed pavement so that it may be used at its original designed capacity and/or accommodate the current mission as provided for by applicable service instruction.
This handbook contains distress definitions and measuring methods for concrete surfaced airfields. This information is used to determine the Pavement Condition Index (PCI). This handbook is based on the references given in the book with modifications for alkali-silica reaction and the addition of deduct values for each distress.
This handbook contains distress definitions and measurement methods for determining the Pavement Condition Index (PCI) of asphalt surfaced airfields. This handbook is based on the references in the book with the addition of deduct curves for each type of distress. New severity level definitions have been included for the porous friction course, weathering, and raveling distress.
This document describes the various services’ (Army, Navy, Marine Corps, Air Force) airfield damage repair (ADR) concept of operations. Recent operations identified the lack of familiarity and consistency in ADR procedures, equipment, material, and unified pavement specifications. This document is the first effort toward developing unified ADR guidance in the context of recent operations.
ADR encompasses more than just pavement repair. Damage assessment, explosive ordnance reconnaissance, minimum operating strip (MOS) selection, repair quality criteria (RQC), aircraft arresting system installation and utility system repairs are just a few of the areas that must also be considered. These areas are only briefly addressed. This document only addresses airfield pavement repairs. All branches of service accomplish pavement repair in a similar manner. The major differences occur in the final 457 to 610 mm (18 to 24 in.) of crater repair and capping due to mission differences, team configuration, and available resources. Understanding the various services’ repair procedures will expedite the re-repair and/or upgrade of those repairs by follow-on forces, regardless of branch of service. Extensive efforts are still required to find the ultimate answers to pavement repair problems and compatibility issues with new aircraft.
Photo courtesy of the Church of God Chaplains Commission.