Effects of moisture on strength and permanent deformation of foamed asphalt mix incorporating RAP materials
Source abstract
Abstract
Abstract Based on literature review on moisture susceptibility of hot-mixed asphalt and foamed asphalt (FA) mixes, a 24-h-soaking preconditioning method was selected to evaluate moisture effects on the strength and permanent deformation of FA mixes incorporating RAP materials in this study. Two grades of bitumen and two types of aged RAP materials were considered. Indirect tensile strength (ITS) test and dynamic creep test of FA mixes incorporating different RAP contents and stabilized by the two bitumens were tested under dry and soaked conditions. As well as ultimate strain, creep strain slope and secant creep stiffness modulus under two conditions were analyzed to evaluate moisture susceptibility of FA mixes in permanent deformation. Retained ITS results were evaluated to investigate moisture effect on property of indirect tensile strength of FA mixes. Bitumen grade and RAP content significantly affect ITS result of FA mixes, ITS will decrease with an increase of RAP content under both dry and soaked conditions. Bitumen grade and ageing of RAP material significantly affect moisture susceptibility of FA mixes in permanent deformation. Lower-grade bitumen and less aged RAP material help FA mixes to improve their moisture susceptibility in permanent deformation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Infrastructure Maintenance and Monitoring · High voltage insulation and dielectric phenomena
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References (25)
Show source-provided references
1. Chan · 2002
2. Foamed asphalt in bituminous paving mixtures
3. Bowering RH, Martin CL. Foamed bitumen: production and application of mixtures, evaluation and performance of pavements. In: Proceedings of the association of asphalt paving technologists, vol. 45; 1976. p. 453–73.
4. Foamed-asphalt paving mixtures: preparation of design mixes and treatment of test specimens
5. Some characteristics of foamed bitumen mixes10.3141/1767-15 ↗
6. Muthen KM. Foamed asphalt mixes: mix design and procedure. Research Report (CR-98/077), CSIR Transportek, South Africa; 1998.
7. Terrel RL, Saleh Al-Swaili. Water sensitivity of asphalt-aggregate mixes: test selection. SHRP-A-403; 1994.
8. Lottman RP. Predicting moisture-induced damage to asphaltic concrete: field evaluation. NCHRP Report 246, Transportation Research Board, Washington (DC, USA); 1982.
9. Tunnicliff DG, Root RE. Use of antistripping additives in asphaltic concrete mixtures: laboratory phase. NCHRP Report 274, Transportation Research Board, Washington (DC, USA); 1984.
10. Methods of predicting and controlling moisture damage in asphalt concrete
11. Zeng M, Ksaibati K. Evaluation of moisture susceptibility of asphalt mixtures containing bottom ash. The annual meeting of Transportation Research Board (CDROM): Washington (DC, USA); 2002.10.3141/1832-04 ↗
12. Cheng DX, Little DN, Lytton RL, Holste JC. Moisture damage evaluation of asphalt mixture by considering both moisture diffusion and repeated load conditions. The annual meeting of Transportation Research Board (CDROM): Washington (DC, USA); 2003.10.3141/1832-06 ↗
13. Cross SA, Voth MD. Effects of sample preconditioning on asphalt pavement analyzer (APA) wet rut depths. The annual meeting of Transportation Research Board (CDROM): Washington (DC, USA); 2001.
14. Effects of water on permanent deformation potential of asphalt concrete mixtures10.1617/13986 ↗
15. Epps JA, Sebaaly PE, Penaranda J, Mather MR, McCann MB, Hand AJ. Compatibility of a test for moisture-induced damage with Superpave volumetric mix design. NCHRP Report 444. Transportation Research Board, Washington (DC, USA); 2000.
16. Effect of moisture content on measured properties of asphalt mixtures
17. Castedo-Franco LH, Beaudoin CC, Wood EL, Altschaeffl AG. Durability characteristics of foamed asphalt mixtures. In: Proceedings of the 29th annual Canadian technical asphalt association conference, Montreal, Canada; 1984. p. 102–22.
18. Marquis B, Bradbury RL, Colson S, Mallick RB, Nanagiri YV, Gould JS, et al. Design, construction and early performance of foamed asphalt full depth reclaimed (FDR) pavement in Maine. The annual meeting of Transportation Research Board (CDROM): Washington (DC, USA); 2003.
19. American Association of State Highway and Transportation Officials. Resistance of compacted bituminous mixture to moisture-induced damage. AASHTO T283, USA; 1993.
20. British Standards Institution (BSI). Method for determining resistance to permanent deformation of bituminous mixtures subject to unconfined dynamic loading. BS DD 226, BSI Draft for Development, London; 1996.
21. Strategic Highway Research Program. Weather database for the superpave mix design system (SHRP-A-648). Washington (DC, USA); 1994.
22. Hong Kong Observation. Monthly meteorological normals and extremes for Hong Kong. http://www.weather.gov.hk/wxinfo/climat/normals.htm [accessed 05.06.2004].
23. Milton LJ, Earland M. Design guide and specification for structural maintenance of highway pavements by cold in-situ recycling, TRL Report 386. Transport Research Laboratory, Berkshire; 1999.
24. Wirtgen · 1998
25. HKRRL. Testing on POLYMER modified binders and friction course (porous asphalt), Final Report. Hong Kong Road Research Laboratory, Hong Kong; 2005.