Title
Use of Recycled Asphalt Pavement (RAP) in Airport Pavements
Date Issued
01 January 2022
Access level
metadata only access
Resource Type
book part
Author(s)
Applied Research Associates
Publisher(s)
Springer Science and Business Media B.V.
Abstract
Federal Aviation Administration (FAA) currently does not allow use of recycled asphalt pavement (RAP) on Airport Improvement Program (AIP) funded airport runway and taxiway pavement projects, and is allowed for use only in pavement shoulders. FAA’s National Airport Pavement and Materials Research Center (NAPMRC) was established to evaluate performance of new and sustainable asphalt material technologies (such as WMA, RAP, etc.) under heavy aircraft loading at high pavement temperatures. As part of Test Cycle 2 (TC2), six test lanes were constructed – four outdoors and two indoors, each encompassing three different test sections. In two indoor lanes, RAP was added to the warm mix asphalt (WMA). Lane-1 is the control section with FAA standard P401 specification hot mix asphalt (HMA). Heavy weight deflectometer (HWD) tests were performed on the constructed test lanes to characterize the pavements. Extensive laboratory tests are planned on RAP/WMA and HMA (field cores and loose mixes). The test lanes will be subjected to accelerated pavement tests (APT) using custom designed airport heavy vehicle simulator (HVS-A) to study rutting performance (at high pavement temperatures) and fatigue behavior. This paper presents construction of test lanes, asphalt mix designs (with and without RAP), results from HWD tests on test lanes with RAP/WMA, and results from laboratory tests on pavement materials.
Start page
1909
End page
1916
Volume
27
Language
English
OCDE Knowledge area
Ingeniería civil
Ingeniería, Tecnología
Subjects
Scopus EID
2-s2.0-85116401772
Source
RILEM Bookseries
Resource of which it is part
RILEM Bookseries
ISSN of the container
22110844
Sponsor(s)
Airports have to comply with the Federal Aviation Administration (FAA) advisory circulars (AC) to design and construct airfield pavements to be eligible for funding granted by Airport Improvement Program (AIP). The current version of FAA’s construction specification designated as FAA AC 150/5370-10H does not allow the use of recycled materials in surface courses of airfield pavements (except for shoulder pavement). It also does not provide any guideline for warm mix asphalt (WMA) in airfield paving. Use of RAP in WMA can be beneficial since this type of asphalt concrete is produced at a lower temperature and thus, can contain the secondary aging of RAP to a minimal level [1]. In United States, WMA has seen very limited used on airports, mainly taxiways [2]. Acknowledging these lack of guidance, FAA’s 10-year research and development program opted to study several warm mix technologies and RAP extensively. In line with that effort, Garg et al. investigated the rutting performance of a warm mix treated with chemical additive during the initial test cycle (TC-1) at the National Airport Pavement and Materials Research Center (NAPMRC) [3]. An airport heavy vehicle simulator was procured for this facility to conduct the full-scale tests at controlled temperature. In TC-2, several other WMA technologies are being investigated, including RAP incorporated WMA. Traffic tests will be conducted for rutting and fatigue characterization. This paper discusses the WMA-RAP mix design, construction of the test lanes, pavement and laboratory characterization effort supplementary to the traffic tests.
Sources of information:
Directorio de Producción Científica
Scopus