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Cost-Effectiveness Of Rubber And Polymer Modified Asphalt Mixtures As Related To Sustainable Fatigue Performance, Mena I. Souliman, Michael Mamlouk, Annie Eifert
Cost-Effectiveness Of Rubber And Polymer Modified Asphalt Mixtures As Related To Sustainable Fatigue Performance, Mena I. Souliman, Michael Mamlouk, Annie Eifert
Civil Engineering Faculty Publications and Presentations
Load associated fatigue cracking is one of the major distress types occurring in flexible pavements. Flexural bending beam fatigue laboratory test has been used for several decades and is considered an integral part of the Superpave advanced characterization procedure. One of the most significant solutions to sustain the fatigue life for an asphaltic mixture is to add sustainable materials such as rubber or polymers to the asphalt mixture. A laboratory testing program was performed on three gap-graded mixtures: unmodified, Asphalt Rubber (AR) and polymer-modified. Strain controlled fatigue tests were conducted according to the AASHTO T321 procedure. The results from the …