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OBORTS Company, Opposite the residence of old General Mambou, Near Dragage, Bastos, Yaoundé, Cameroon
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Buton's natural asphalt was originally discovered in 1924 and has since been developed to cater to different needs and applications, including penetration Macadam, hot mix asphalt, as well as bitumen modifier to improve pavement durability.Unlike petroleum bitumen, Buton asphalt is naturally occuring and requires less processing to produce and apply.
2021-3-19 · Indonesia has the largest natural asphalt reserves located in Buton Island (Asbuton). Ironically, Indonesia imports significant amount of asphalt due to no useful technology to produce asphalt from the Asbuton. Objective of this research is to produce asphalt by extraction of CaCO 3 as Asbuton’s impuritiesusing H 2CO 3 in brine waterassolvent
Alternative of local materials that can be used is asbuton (natural rock asphalt from Buton Island). Asbuton is expected to act as a stabilizer and simultaneously provides additional filler.
In Indonesia, natural asphalt can be found in the Buton islands off the southeastern Sulawesi coast. According to Siswosoebrotho, et al., the total reserve of the so-called Buton asphalt is