Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Application of Recycled Polyethylene Terephthalate Fiber in Asphaltic Mix for Fatigue Life Improvement
Abstract The study aim is to determine the suitability of recycled polyethylene terephthalate (PET) fiber in fatigue life improvement of asphalt concrete mix. Fatigue crack is among the principal distresses that shortens the life span of flexible pavements. The aim was achieved through laboratory experiments (indirect tensile stiffness modulus and fatigue tests) to determine the fatigue characteristics of reinforced and neat asphalt mixtures. The reinforced mixtures were prepared using recycled PET fiber at 0.3, 0.5, 0.7, and 1.0% by total weight of mixture. The result was analyzed through regression analysis and fatigue life-prediction models were developed. The stiffness modulus of reinforced mixtures was improved by 19% at 0.3%, 34% at 0.5%, 4% at 0.7% and decreased by 34% at 1.0% recycled PET fiber reinforcement compared to neat mixture. The developed fatigue life-prediction models are statistically significant with p-values < 0.05. The fatigue life of recycled PET fiber reinforced mixtures at higher strains was highly improved at 0.3% reinforcement, while 0.5% reinforcement exhibited higher fatigue life at lower strain levels compared to neat mixtures. Therefore from the result and analysis conducted, recycled PET fiber has proved to be effective in fatigue life improvement of asphalt concrete.
Application of Recycled Polyethylene Terephthalate Fiber in Asphaltic Mix for Fatigue Life Improvement
Abstract The study aim is to determine the suitability of recycled polyethylene terephthalate (PET) fiber in fatigue life improvement of asphalt concrete mix. Fatigue crack is among the principal distresses that shortens the life span of flexible pavements. The aim was achieved through laboratory experiments (indirect tensile stiffness modulus and fatigue tests) to determine the fatigue characteristics of reinforced and neat asphalt mixtures. The reinforced mixtures were prepared using recycled PET fiber at 0.3, 0.5, 0.7, and 1.0% by total weight of mixture. The result was analyzed through regression analysis and fatigue life-prediction models were developed. The stiffness modulus of reinforced mixtures was improved by 19% at 0.3%, 34% at 0.5%, 4% at 0.7% and decreased by 34% at 1.0% recycled PET fiber reinforcement compared to neat mixture. The developed fatigue life-prediction models are statistically significant with p-values < 0.05. The fatigue life of recycled PET fiber reinforced mixtures at higher strains was highly improved at 0.3% reinforcement, while 0.5% reinforcement exhibited higher fatigue life at lower strain levels compared to neat mixtures. Therefore from the result and analysis conducted, recycled PET fiber has proved to be effective in fatigue life improvement of asphalt concrete.
Application of Recycled Polyethylene Terephthalate Fiber in Asphaltic Mix for Fatigue Life Improvement
Usman, Nura (Autor:in) / Masirin, Mohd Idrus Mohd (Autor:in) / Ahmad, Kabiru Abdullahi (Autor:in) / Ali, Ahmad Suliman B (Autor:in)
13.05.2018
13 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Fatigue , Improvement , Asphalt concrete , Polyethylene terephthalate , Fiber Engineering , Civil Engineering , Geotechnical Engineering & Applied Earth Sciences , Remote Sensing/Photogrammetry , Hydrology/Water Resources , Climate Change/Climate Change Impacts , Image Processing and Computer Vision
Recycled Asphaltic Concrete Mix Design
| NTIS | 1986
Use of Recycled Polyethylene Terephthalate Strips in Soil Improvement
| Online Contents | 2021