In order to study the effect of microcapsules on rheological properties asphalt mortar, were prepared by interfacial polymerization and mixed with 70# matrix SBS modified in different proportions prepare two kinds microcapsule mortars. The mortar measured dynamic shear experiment curved beam experiment. test results show that method have a smooth surface, high coating rate, an average particle ...

In this paper, it has been attempted to evaluate the performance of asphalt overlays which were reinforced with geogrid, modified by sasobit and combination of them on rehabilitation of reflective cracking. The laboratory tests under dynamic loading in bending mode were conducted to investigate reflective cracking retardation compared to reference samples. The results illustrated that in a cert...

To effectively evaluate the high-temperature characteristics of a fuel-resistant modified asphalt (FRMA), five different types were selected, and modifier (FRM) was added to prepare kinds FRMA, fuel resistance 10 above-mentioned samples then evaluated. Moreover, performance explored, influences FRM on penetration, softening point, rheological indexes analyzed. A Pearson correlation analysis con...

In alpine regions, the durability of asphalt pavement is worse due to harsh climate. However, crumb rubber modified has potential improve pavement. Based on matrix asphalt, rubber, Trans-Polyoctenamer Rubber Reactive Modifier (TOR), and an orthogonal test, preparation scheme suitable for regions was obtained. The selected 30 mesh, content 24% quality asphalt. Shearing time 60 min, temperature 2...

Traditional hard-grade asphalts for high-modulus asphalt concrete (HMAC) are produced by using natural to modify matrix asphalts. However, scarce and expensive. To find a sustainable alternative, this study presented method synthesize phenol formaldehyde resin (PFR), hexamethylenetetramine (HMTA) Infrared radiation (IR) spectra analysis fraction the modifiers show that molecules can be cross-li...