An advanced method for the development of highly reliable asphalt concrete mixture
Kosparmakova S.A. Shashpan Zh.A. Guler M.
12 October 2023Institute of Metallurgy and Ore Beneficiation JSC
Kompleksnoe Ispolzovanie Mineralnogo Syra
2023#326Issue 341 - 49 pp.
This paper introduces the new technology of road construction pavement Superpave. From the beginning of the technology, the method of calculation of road pavement temperature has been taken as an example on the Shymkent city road in Kazakhstan. The material calculation for high quality was conducted with the new climate data of the exact city. A new methodological approach will determine the most accurate selection of bitumen binder grades using a specifically developed PG Grade calculationbased on the meteorological data for the period from 2000 to 2020 (20 years) for the specific city. This will be intended to establish requirements for bitumen binders testing by the traditional method for both original and modified bitumen, such as penetration, softening point, and flash and fire point tests, taking into account the climatic characteristics of the republic.Today, have to be accounted that the most common bitumen binderis a 70-100 penetration rating, which means that quite incorrectto use at the highest temperature in Shymkent at +41.3°C andwith the lowest temperature at -17.8°C. The results will helpto decide on the use of polymer modification of binders, taking intoaccount the design temperatures and operating conditionsof asphalt concrete surfaces.
bitumen binder , bitumen grade , flash point , Penetration grading , PG Grade calculations , softening point , Superpave
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L.N. Gumilyov Eurasian National University, Nur-Sultan, Kazakhstan
Middle East Technical University, Ankara, Turkey
L.N. Gumilyov Eurasian National University
Middle East Technical University
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