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Evaluation of Laboratory Performance of Foamed Warm Mix Asphalt Produced by Water Injection

Roy, Arjun C.
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1374766129

Abstract Details

2013, Master of Science (MS), Ohio University, Civil Engineering (Engineering and Technology).
Warm Mix Asphalt (WMA) is a group of technologies that utilizes water or chemical additives to reduce viscosity of asphalt binder. Despite the advantages of WMA technologies, there are still concerns regarding the performance of asphalt mixtures produced using these technologies. The main objectives of this study were to: (1) evaluate the effect of foamed WMA technology on the performance of asphalt mixtures, (2) examine the effect of binder type, the aggregate type and NMS on the mechanical properties of foamed WMA and compare it to that of the HMA and (3) evaluate the performance of sections constructed with foamed WMA mixtures and compare them to those constructed with HMA mixtures using the M-EPDG software. In this study, two asphalt binders (PG70-22M and PG64-28) and two types of aggregates (limestone and gravel) were selected. A total of eight mixtures, four foamed WMA and four corresponding HMA, were produced and compacted. The permanent deformation resistance of those mixtures was evaluated using APA (Asphalt Pavement Analyzer), flow number, and dynamic modulus tests. In addition, the AASHTO 283 tests and the dynamic modulus ratio tests were utilized to examine the moisture susceptibility of the WMA and HMA mixtures. The Dissipated Creep Strain Energy (DCSE) test and the Indirect Tensile Strength (ITS) test at low temperature were performed to evaluate the performance of all considered mixtures in terms of resistance to fatigue and low temperature cracking, respectively. Finally, the Mechanistic-Empirical Pavement Design Guide (M-EPDG) software was utilized to predict performance of pavement sections constructed using the considered asphalt mixtures. Based on the results of the analyses it was concluded that asphalt foaming had no significant effect on the resistance to permanent deformation, fatigue cracking, and moisture-induced damage of the considered mixtures. Resistance to low temperature cracking of WMA mixtures found to be slightly better than HMA mixtures. The effects of the binder type, aggregate type and NMS were found to be significant on permanent deformation and low temperature cracking. For both WMA and HMA, however, only binder type had significant impact on fatigue cracking of the mixtures. The M-EPDG analyses indicated a slight increase in IRI (International Roughness Index), AC (Asphalt concrete) rutting, fatigue cracking, and total rutting due to binder foaming.
Munir Nazzal (Advisor)
124 p.
Civil Engineering
Foamed warm mix asphalt; rutting; fatigue cracking; low temperature cracking; moisture-induced damage; M-EPDG

Recommended Citations

Citations

  • Roy, A. C. (2013). Evaluation of Laboratory Performance of Foamed Warm Mix Asphalt Produced by Water Injection [Master's thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1374766129

    APA Style (7th edition)

  • Roy, Arjun. Evaluation of Laboratory Performance of Foamed Warm Mix Asphalt Produced by Water Injection. 2013. Ohio University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1374766129.

    MLA Style (8th edition)

  • Roy, Arjun. "Evaluation of Laboratory Performance of Foamed Warm Mix Asphalt Produced by Water Injection." Master's thesis, Ohio University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1374766129

    Chicago Manual of Style (17th edition)

ohiou1374766129
542
© 2013, all rights reserved.
This open access ETD is published by Ohio University and OhioLINK.