Feb 28, 2022 · Traditional methods to achieve self-healing asphalt pavements includes rejuvenation and heating. Rejuvenators are usually incorporated through capsules, hollow fibers, or vascular fibers. Upon cracking, the encapsulation breaks and …

Jun 1, 2018 · Section 3 presents four kinds of possible self-healing mechanism and corresponding models of asphalt materials. The molecular diffusion healing mechanisms in asphalt materials are inspired by self-healing polymeric systems which describe the self-recovery behavior on the basis of polymer chain dynamics [[18], [19], [20]].

Jan 10, 2021 · As a viscoelastic fluid with relatively strong surface wetting and diffusion capability, asphalt shows a self-healing behavior that can close its microcracks and therefore restore its stiffness and strength. Asphalt self-healing can improve the fatigue cracking performance of asphalt pavements.

There are three main self-healing technologies available for asphalt pavement design; nanoparticles, induction heating and rejuvenation. This paper reviews all three options and outlines the future development of the self-healing asphalt technology. Key words: Self-healing, Asphalt Rejuvenation, Nanoparticles.

In order to systematize research in the field of self-healing asphalt concrete and expand the list of healing agents that can ensure the formation of a healing effect, an approach has been proposed to assess the suitability for encapsulation using alginate emulsions.

Asphalt, as a natural healing material, can recover its original properties spontaneously by molecular diffusion during rest time or under elevated thermal conditions [ 9, 10, 11 ].

Jan 24, 2025 · This study investigated the low-temperature self-healing behaviour of asphalt mixtures modified with 5% Styrene–Butadiene-Styrene (SBS) and subjected to 10 freeze–thaw cycles, with and without a 12-hour resting period between cycles. Acoustic Emission and semicircular bending tests were conducted under three fracture modes (Mode I, Mode II ...

Jul 18, 2018 · In recent decades, researchers have revealed the great healing potential of asphalt and proposed various novel methods to inspire and improve the self-healing capacity of asphalt aimed to prolong the service life of asphalt pavement.

Aug 25, 2018 · This paper presents a unique self-healing system for asphalt pavement which employs compartmented calcium-alginate fibres encapsulating an asphalt binder healing agent (rejuvenator).

Nov 1, 2023 · Research on novel self-healing asphalt materials with intelligent response is at the cutting-edge of materials science and offers a potential strategy for building long-life and low-carbon asphalt concrete infrastructure.