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Application of bond strength concept to study the self-healing properties of bituminous mastic
This study investigated the effect of the different mineral fillers and concentrations, film thicknesses on the bituminous mastic bond strength (BMBS). Moreover, the self-healing capabilities of different bituminous mastic compounds were assessed, where the effects of two types of high modulus additives of RW plast S and RW elast E on the self-healing of bituminous mastic were evaluated. It was found that filler concentration, due to the morphology of filler, has a great impact on the BMBS. Indeed, the more porosity, the more bitumen needed to fill the voids on the surface of filler particles that changes the thickness of free bitumen. Besides, the healing capability of the dense structure can be expected to be more than porous one. The change in the thickness of the free bitumen alters the healing mechanism of bituminous mastic. Exposing to the water helps the bitumen to make a strong bond that results in higher recovered bond strength in the long run. Regarding these issues, it was observed that the healing capability of River Filler (RF) is more than Dolomite Filler (DF).
Application of bond strength concept to study the self-healing properties of bituminous mastic
This study investigated the effect of the different mineral fillers and concentrations, film thicknesses on the bituminous mastic bond strength (BMBS). Moreover, the self-healing capabilities of different bituminous mastic compounds were assessed, where the effects of two types of high modulus additives of RW plast S and RW elast E on the self-healing of bituminous mastic were evaluated. It was found that filler concentration, due to the morphology of filler, has a great impact on the BMBS. Indeed, the more porosity, the more bitumen needed to fill the voids on the surface of filler particles that changes the thickness of free bitumen. Besides, the healing capability of the dense structure can be expected to be more than porous one. The change in the thickness of the free bitumen alters the healing mechanism of bituminous mastic. Exposing to the water helps the bitumen to make a strong bond that results in higher recovered bond strength in the long run. Regarding these issues, it was observed that the healing capability of River Filler (RF) is more than Dolomite Filler (DF).
Application of bond strength concept to study the self-healing properties of bituminous mastic
Sedghi, Reza (author) / Shams Esfandabad, Amin (author) / Motevalizadeh, Seyed Mohsen (author) / Asgharzadeh, Seyed Mohammad (author) / Alavi, Mohammadzia (author) / Sahebzamani, Hamidreza (author)
International Journal of Pavement Engineering ; 23 ; 1145-1160
2022-03-21
16 pages
Article (Journal)
Electronic Resource
Unknown
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