Laboratory and On-Site Tests for Rapid Runway Repair

Abstract

Featured Application: The results of this study offer a broad vision for the rapid runway repair, giving a useful quantitative and objective tool for airport management body; moreover, they could be applied also for road pavements. Abstract:The attention to rapid pavement repair has grown fast in recent decades: this topic is strategic for the airport management process for civil purposes and peacekeeping missions. This work presents the results of laboratory and on-site tests for rapid runway repair, in order to analyse and compare technical and mechanical performances of 12 different materials currently used in airport. The study focuses on site repairs, a technique adopted most frequently than repairs with modular elements. After describing mechanical and physical properties of the examined materials (2 bituminous emulsions, 5 cement mortars, 4 cold bituminous mixtures and 1 expanding resin), the study presents the results of carried out mechanical tests. The results demonstrate that the best performing material is a one-component fast setting and hardening cement mortar with graded aggregates. This material allows the runway reopening 6 h after the work. A cold bituminous mixture (bicomponent premixed cold asphalt with water as catalyst) and the ordinary cement concrete allow the reopening to traffic after 18 h, but both ensure a lower service life (1000 coverages) than the cement mortar (10,000 coverages). The obtained results include important information both laboratory level and field, and they could be used by airport management bodies and road agencies when scheduling and evaluating pavement repairs.

Comprehensive Evaluation for Real-Time Compaction Quality Using i-AHP and i-GAM: Case Study of Earth-Rock Dam

“…A crucial process in dam construction is dam material compaction. Compared with similar research in other engineering fields, the compaction measurement indices can mainly be divided into two categories: the physical indices and the mechanical indices [8][9][10]. The common indices are summarized in Table 1 according to category.…”

Jointed Plain Concrete Pavements in Airports: Structural–Economic Evaluation and Proposal for a Catalogue

“…The large experience of the IAF has helped to collect data on design, construction, and maintenance of runways over more than 80 years. With regard to concrete pavements, Jointed Plain Concrete Pavements (JPCP) without dowel and tie bars are the most frequent solution because of simple and rapid execution, lower cost than other concrete solutions (the presence of bars involves an increase in expenditure varying from 8% to 20%, while a continuous reinforcement involves a higher initial expense of 50% or more) [6], good monitored performances [7][8][9][10][11], and simple maintenance works [12,13], the latter with potential applications to other facilities, where regular maintenance might lag behind [14][15][16]. The absence of reinforcement requires a double foundation layer: a bottom one composed of a granular mixture and a top one composed of a cement-stabilized mixture.…”

Proposal and Implementation of a Heliport Pavement Management System: Technical and Economic Comparison of Maintenance Strategies

“…A PMS includes several steps: pavement distress survey [8,9], pavement evaluation [1], life-cycle cost analysis (LCCA) [10], and finally, definition of the maintenance strategies [11][12][13]. M&R planning for airport pavements complies with the airport pavement management system (APMS) method [6].…”