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Siksha Swaroopa Kar, Khusboo Arora, ChandraKant Mani, P.K. Jain
Pág. 349 - 358
IS:73-2013 specified four grades of bitumen such as VG-10, VG-20, VG-30 and VG-40. Indian refineries are producing only two grades of paving bitumen such as VG-10 and VG-30, which are not adequate for prevailing climate and traffic conditions of India. R...
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