The influence of natural rubber along-side with chlorine gas on the bitumen blends characteristics have inspected. The modification performed through passing chlorine gas on molten bitumen mix prepared using bitumen and rubber latex of variety percentages. Penetration, penetration index, ductility and softening point have tested. In addition, viscoelasticity, rutting resistance and thermal stability have measured using dynamic shear rheometric analysis and differential scanning calorimetry, respectively. The chlorination has confirmed via Fourier-transform infrared spectroscopy analysis and asphaltene ratio determination. The acquired data showed an improvement in the thermal stability besides obvious enhancements in the viscoelasticity and rutting performance of the resulted blends. The results give clear advantage, for potential usage of such blends in the road paving application.
Coral reef‐like carbon nanomaterials (referred to carbon nanotrees or nanodendrites) were successfully synthesized using waste automobile tires as an alternative source of carbon. The products have been characterized using field‐emission scanning electron microscope (FESEM), transmission electron microscopy (TEM), energy‐dispersive X‐ray spectroscopy (EDX) and Raman Spectroscopy. Thermogravimetric analysis (TGA) was investigated in order to examine the thermal stability of the products. The morphology of the products showed observation of tree‐like carbon nanomaterials similar to natural coral reef having thin graphitic outer mono shell with diameter about 3 nm and different monoliths sizes of about 7 to 40 nm. The as obtained materials demonstrated good thermal stability with a yield of 56% due to high temperature used in the deposition stage. The proposed formation mechanism suggested that they are formed as a result of the fusion and swelling of the nanoparticles. The temperature range of the deposition step in addition to the cooling step play major role in the formation of such materials.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.