Effect of Organoclay Modified Binders on Fatigue Performance

Innovations in pavement design and engineering: A 2023 sustainability review

“… Eco-friendly; strain-sensing capabilities; temperature-sensing capabilities; pressure-sensing capabilities; economically feasible; improved response time Requires further development and field-testing; can have high initial costs [ 111 , [112] , [113] , [114] , [115] , [116] ] Self-Healing Asphalt Pavements Smart Pavements Many self-healing asphalt technologies try to restore and utilize asphalt's inherent self-healing behavior. Technologies include additives and nanoparticles, in-situ heating, and rejuvenation using encapsulation, hollow fibers, or vascular fibers Increased pavement lifetime; reduces lifecycle costs; reduces emissions related to maintenance Many of the technologies need further testing before ready for application [ 111 , [117] , [118] , [119] , [120] , [121] , [122] , [123] , [124] , [125] , [126] , [127] , [128] , [129] , [130] ] Self-Healing Concrete Pavements Smart Pavements The leading process of self-healing in concrete pavements is through the introduction of bacteria to create calcium carbonate, which can fill microcracks Increased pavement lifetime; reduces lifecycle costs; reduces emissions related to maintenance; and some have proven to improve concrete strength, durability, and resistance Less explored than self-healing in asphalt pavements; slow overall process; unknown biological health effects [ [131] , [132] , [133] , [134] , [135] ] Information Interaction Pavements Smart Pavements Integrated framework design systems for entire road...…”

“…Nanoparticle technology is one example of a self-healing technology applied to asphalt pavements [ 118 , 123 , 124 ]. Nanoclay and nanorubber are two examples of nanoparticles that can improve the mechanical and physical properties of asphalt and its ability to self-heal [ 117 , 124 ]. Time and temperature could, however, negatively affect the healing capabilities of the nanomaterials.…”

A Methodological Review on Development of Crack Healing Technologies of Asphalt Pavement

“…Jackson et al realise bitumen can be directly used as a printing material to print into the cracks in the road surface to repair cracks at high temperatures to prolong the life of asphalt pavement [126]. Bitumen modified by polymer (SBS, Gilsonite, HDPE and crumb rubber in Lv et al [127], SBS, HDPE and crumb rubber in Zhou et al [128] crumb rubber, PPA, PE and gilsonite in Huang et al [129]), nanomaterials (organoclay in Tabatabaee et al [130], nano-silica in Ganjei et al [131]), ionomers [132] and shape memory materials [133] to increasing the self-healing properties of bitumen itself can also improve the crack healing ability of the asphalt pavement.…”

Self-Healing Technology for Asphalt Pavements

“…The nanoparticles tend to move towards the tip of the crack driven by the high surface energy, thus stop the crack propagation and to heal damaged asphalt material [34]. Tabatabee and Shafiee [15] studied effect of rest periods on fatigue life of organoclay modified asphalt mix and found that introduced rest periods at 3% and 5% strain level increased fatigue resistance of asphalt mixes containing organoclay modified asphalt mixes. This finding illustrates that nanoclay material can be used for improving the self-healing properties of asphalt mixtures.…”