Performance of Protective Composite Runway Pavement under Moving and Impact Loads

Ali, Saima

doi:10.5204/thesis.eprints.116521

Cited by 2 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the high speed and heavily weighted aircrafts exert huge contact pressure on the runway pavement during the take-o and after the landing of aircrafts frequently. As a consequence, surface depression, rutting, and potholes are often visible for heavily serviced runway pavements or severe damage after accidents [2][3][4][5][6]. e potential exists to improve the dynamic load performance of concrete at the structural level with the advent of steel-ber-reinforced concrete (SFRC), which is a composite material in which steel bers are homogeneously mixed in plain concrete, compared to members of conventional concrete structures.…”

Section: Introductionmentioning

confidence: 99%

Behavior of Steel‐Fiber‐Reinforced Concrete (SFRC) Slab‐on‐Grade under Impact Loading

Tekleab

Aure

2022

Advances in Civil Engineering

View full text Add to dashboard Cite

Structures such as industrial pavements, roads, parking areas, and airport runways are often slab-on-grade where steel-fiber reinforcement can substitute conventional steel reinforcement. Due to the dynamic nature of loading while in service, these structures are exposed to the damaging effects of impact loading, such as strength and stiffness deterioration in materials or structural elements. In this study, the behavior of concrete slab-on-grade with steel-fiber-reinforced concrete under impact load has been investigated by considering different parameters. Nonlinear finite element software ABAQUS/Explicit is used to simulate the system. The accuracy of the nonlinear finite element models is verified using experimental work available in the literature. A total of 108 specimens are simulated by varying the volume fraction of steel fiber by 0.5%, 1%, and 1.5% coupling with the impact mass and velocity from the control specimen and variation of load location, thickness, and aspect ratio. The analysis results revealed that the addition of 0.5%, 1%, and 1.5% volume fraction of steel fiber in concrete could effectively accommodate up to 0%, 10%, and 26% reduction of thickness, respectively. These results confirmed that the appropriate use of steel fiber in concrete can be a feasible solution to improve the overall performance of slab-on-grade. Moreover, an increase in the aspect ratio of steel fiber improves the crack resistance of steel-fiber-reinforced concrete slab-on-grade, but a further increase in aspect ratio reduces the performance due to local crushing of concrete.

show abstract

Section: Introductionmentioning

confidence: 99%

Behavior of Steel‐Fiber‐Reinforced Concrete (SFRC) Slab‐on‐Grade under Impact Loading

Tekleab

Aure

2022

Advances in Civil Engineering

View full text Add to dashboard Cite

show abstract

“…Similar to the road pavement, flexible airport pavement commonly consists of four layers-surface layer, base layer, subbase layer, and subgrade layer. Therefore, flexible airport pavement can be considered multi-layer composite pavement [5]. A thin layer of dense-graded hot-mix asphalt (HMA) ranged from 50 to 60 mm thickness is generally designed as the surface layer of flexible airport pavement, however, a thicker HMA surface layer was also suggested referring to the US standard to overcome increasing aircraft load [6].…”

Section: Introductionmentioning

confidence: 99%

“…Cement, lime, or asphalt can also be employed to stabilize base or subbase materials [8]. For rigid airport pavement, the thickness of a concrete layer is constructed on the base layer within the range from 225 to 450 mm [5].…”

Section: Introductionmentioning

confidence: 99%

“…Owing to the hard loading of heavy aircraft or accidental conditions such as high-velocity objects or terrorist attacks, airport pavement may be subjected to multi-levels of impact loading [5]. Generally, the structural deterioration of airport pavement is caused by deflection, cracking, surface depression, rutting, potholes, and the exponential reduction of the dynamic stiffness with the age of the pavement under repetitive loading [12,13].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Review of PCN Determination of Airport Pavements Using FWD/HWD Test

Sun

Chai²,

et al. 2022

Int. J. Pavement Res. Technol.

View full text Add to dashboard Cite

Airport pavements are widely constructed as airport runways, taxiways, and aprons. The airport traffic should be considered during the design stage of airport pavements before the construction. To protect airport pavements from negligent overload, a pavement strength rating system and an aircraft load classification system are adopted. Under the rating systems developed by the International Civil Aviation Organization (ICAO), Aircraft Classification Number (ACN) and Pavement Classification Number (PCN) are calculated to assess the aircraft loads and the load-carrying capacity of the airport pavements for unrestricted operations. With the increase in the air transport demand, increasing attention on the continuous evaluation of airport pavement conditions is introduced to airports across the globe. The load-carrying capacity can be evaluated to assess airport pavement conditions by calculating the value of PCN continuously during the service cycle of pavements. The value of PCN can be estimated by testing the response of stationary dynamic loads, adopting a Falling Weight Deflectometer (FWD) or a Heavy Weight Deflectometer (HWD) device that simulates the stress generated by aircraft movements. By evaluating the PCN continuously in Airport Pavement Management System (APMS), cyclic determinations of the load-carrying capacity can be conducted to support the maintenance and rehabilitation (M&R) decision-makers. This review summarizes the methodology for determining the PCN and the tests conducted for evaluating the strength of airport pavement presented in the published literature. Further, the review highlights the benefits of determining PCNs by adopting the FWD or HWD field data with more precise results through mechanistic procedures.

show abstract

Performance of Protective Composite Runway Pavement under Moving and Impact Loads

Cited by 2 publications

References 0 publications

Behavior of Steel‐Fiber‐Reinforced Concrete (SFRC) Slab‐on‐Grade under Impact Loading

Behavior of Steel‐Fiber‐Reinforced Concrete (SFRC) Slab‐on‐Grade under Impact Loading

A Review of PCN Determination of Airport Pavements Using FWD/HWD Test

Contact Info

Product

Resources

About