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The Effect of Wax Modification on the Performance of Mastic Asphalt
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Transportvetenskap, Väg- och banteknik.ORCID-id: 0000-0002-4270-8993
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Transportvetenskap, Väg- och banteknik.ORCID-id: 0000-0002-0596-228X
Dept of Civil Engineering, Bozok University, 66100 Yozgat, Turkey.
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Transportvetenskap, Väg- och banteknik.ORCID-id: 0000-0003-0889-6078
2010 (engelsk)Inngår i: International Journal of Pavement Research and Technology (IJPRT), ISSN 1997-1400, Vol. 3, nr 2, s. 86-95Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The scope of this study is to evaluate the mechanical performance of the polymer modified mastic asphalt with 4% montan wax (Asphaltan A) additive. The impact of wax modification on binder, binder/filler mixtures and mastic asphalt was investigated in the laboratory. Wax modified binder properties were determined using dynamic mechanical analysis (DMA), Fourier transform infrared (FTIR) spectroscopy and conventional tests (softening point, penetration, elastic recovery, breaking point, viscosity and storage stability). The bending beam rheometer (BBR) was used for determining low temperature creep compliance and the tensile stress restrained specimen test (TSRST) for determining low temperature fracture. The fatigue cracking behavior of mastic asphalt was investigated using Superpave Indirect Tensile Test (IDT). Based on HMA Fracture Mechanics the influence of wax on the asphalt mixture resistance to fatigue and brittle cracking has been evaluated. The addition of wax to the polymer modified binder resulted in a viscosity reduction at higher temperatures, indicating a possible lower production and laying temperature as compared to asphalt without wax additive. DMA and BBR results showed some increase in stiffness and a more elastic response of the wax modified binder at medium and low temperatures. The TSRST fracture temperature was higher for the mastic asphalt containing wax, indicating a certain negative impact of wax modification.

sted, utgiver, år, opplag, sider
No.300, Jhongda Rd., Jhongli City, Taoyuan County 32001, Taiwan: Chinese Society of Pavement Engineering , 2010. Vol. 3, nr 2, s. 86-95
Emneord [en]
Superpave IDT; energy saving; low temperature performance; HMA Fracture Mechanics
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-49682Scopus ID: 2-s2.0-78651573129OAI: oai:DiVA.org:kth-49682DiVA, id: diva2:460078
Merknad

QC 20111208

Tilgjengelig fra: 2011-12-08 Laget: 2011-11-29 Sist oppdatert: 2017-03-29bibliografisk kontrollert

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Scopushttp://www.ijprt.org.tw/index.php?page=issue&volume=3&issue=2

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