A STUDY ON PERFORMANCE CHARACTERISTICS OF CRUMB RUBBER MODIFIED BITUMEN FOR VARIOUS BLENDING TEMPERATURE AND BLENDING TIME
Keywords:Modified Bitumen, Modifier, Crumb rubber modified bitumen (CRMB), Blending Temperature, Blending Time
It is extremely important that the modifier is thoroughly mixed with bitumen before the
preparation of the bituminous mix so that the modified bitumen retains its premium properties.
Different types of modifiers require different techniques of blending. The exact temperature and time
of blending depends upon the type and amount of modifier use as it plays very vital role in obtaining
the required properties of modified bitumen. In this study the crumb rubber modified bitumen
(CRMB) samples are prepared for varying blending temperature and blending time. From the study it
is determine that the various properties of CRMB varies with blending temperature and blending
time. The optimum blending temperature and blending time found out 1750C and 45 minutes
respectively for preparing high quality CRMB.