3道路沥青技术规范.pdf

道路沥青技术规范This Indian Standard (Second Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by the Bitumen Tar and Their Products Sectional Committee had been approved by the Petroleum, Coal and Related Products Division Council. This standard was first published in 1950 as ‘Specification for asphaltic bitumen and fluxed native asphalt for road making purpose’ which was revised in 1961 to change the grades of material and incorporate the methods of test as per IS 1201 to IS 1220 : 1958 ‘Methods for testing tar and bitumen’. In this revision, the grades of fluxed native asphalt were deleted and essentially the paving grades were included.