Bitumen
Bitumen is exclusively used as a binder in road construction and maintenance. Nepal Bitumen and Barrel Udyog Ltd. imports loose bulk Paving Bitumen of Viscosity Grade (VG) directly from the refineries which after processing with quality control and tests to meet Nepal Standard.
Bitumen Specification:
NBBUL presently producing Paving Bitumen Viscosity Grade bitumen conforming Nepal
Standard NS dated 2073 which is derived from IS 73:2013.
BITUMEN EMULSION:
Bitumen emulsions are a dispersion of very fine bitumen particles in an aqueous medium. These liquid products are functional in use and are widely popular in road construction and maintenance. Cationic bitumen emulsions have become more popular today because of their superior qualities over traditional bitumen.
Bitumen emulsions are produced as per Nepal Standard (NS) 207-2046
conforming to IS 8887-78, BS 434-1984 and ASTMD 244-83 by processing prime
quality VG10 bitumen, water and high-quality emulsifiers under controlled
production parameters such as pH, temperature, etc. The hi-tech colloid mill
with its superfine milling efficiency provides fine and narrow particle
distribution which gives the emulsion an increased storage stability and higher
viscosity. The quality of the emulsion is controlled at every step of
production and is tested in the laboratory for consistency.
Advantages of Emulsion:
·
Require no
heating, is ready to use.
·
Environment
friendly.
·
Energy saving.
·
Cost effective.
·
Workable with cold
and damp aggregates.
·
Safe and easy
handling.
·
Better and durable
pavement
·
Less wastage saves
money.
Bitumen Emulsion Specification:
NS207-2046
Test Method: NS207-2046 and NS 221-2047
Type: Cationic
Bitumen Emulsion (HIMALSION GRADES AND APPLICATION)
