Evaluating the Effect of Rice-Husk Ash and Crumb-Rubber Powder on the High-Temperature Performance of Asphalt Binder
The objective of this paper was to evaluate the effect of using rice husk ash (RHA), crumb rubber powder (CRP), and combination of RHA and CRP (RHA/CRP) on the high-temperature performance of asphalt binder. Different dosages of RHA (1%, 4%, and 7%) and CRP (5%, 10%, and 15%) by weight of asphalt binder were used to prepare modified asphalt. Various experimental tests (penetration, ring and ball test, rotational viscosity, dynamic shear rheometer, and multiple stress creep recovery) were conducted. The obtained results indicate that adding RHA and CRP affected the high-temperature performance of asphalt binder positively by increasing softening point, penetration index, viscosity, complex modulus, rutting factor, failure temperature, and percent recovery, reducing penetration, phase angle, as well as nonrecoverable creep compliance (Jnr). Furthermore, the asphalt binder modified with RHA/CRP demonstrated better performance compared to asphalt binders modified with RHA or CRP.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
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Supplemental Notes:
- © 2019 American Society of Civil Engineers.
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Authors:
- Abdelmagid, Alaaeldin A A
- Feng, Cheng Pei
- Publication Date: 2019-12
Language
- English
Media Info
- Media Type: Web
- Pagination: 04019296
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Serial:
- Journal of Materials in Civil Engineering
- Volume: 31
- Issue Number: 12
- Publisher: American Society of Civil Engineers
- ISSN: 0899-1561
- EISSN: 1943-5533
- Serial URL: http://ascelibrary.org/journal/jmcee7
Subject/Index Terms
- TRT Terms: Ash content; Asphalt additives; Bituminous binders; Creep; Crumb rubber; High temperature
- Subject Areas: Highways; Materials; Pavements;
Filing Info
- Accession Number: 01722352
- Record Type: Publication
- Files: TRIS, ASCE
- Created Date: Nov 14 2019 9:32AM