Study On Durability Of High-Modulus Asphalt Mixture Based On Tla And Fibre Composite Modification Technology
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING(2018)
Abstract
In order to improve the low-temperature cracking resistance and durability of high-modulus asphalt mixture, this article proposes the use of Trinidad Lake Asphalt (TLA) and polyester fibre complex methods to obtain high-modulus asphalt mixture, based on indoor accelerated load, low bending temperature, freeze-thaw splitting and APA fatigue test to study the influence of TLA content on permanent deformation resistance performance, water stability, low-temperature crack resistance and fatigue resistance of high-modulus asphalt mixtures. Meanwhile, it reveals the mechanism of the TLA and polyester fibre composite modified on high-modulus asphalt mixture and recommends the best solution of high-modulus asphalt complex is 30% TLA + 3 parts per thousand polyester fibre.
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Key words
Road engineering,high-modulus asphalt mixture,polyester fibres,Trinidad lake asphalt,durability
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