of the method for modifying bitumen is emulsification with water which enhance
bitumen properties incredibly. Another advantages of modification is that it
can be applied cold (80°C). Emulsion bituminous asphalt consist of two
immiscible liquids which are stabilized by emulsifier. They usually used for
tack coats, hot-mixed asphalt, prime coats, chip seal. Firstly Anionic emulsion
were developed and because cationic emulsion has more adhesion properties they
are more favored especially in tack coating. The type (chemistry) of the
emulsifying agent used, determines the designation. During application, the
water in a bitumen emulsion is either lost by evaporation, or it may separate
from the bitumen because of the chemical nature of the surface to which the
emulsion is applied. This process is referred to as breaking.
on the type of emulsifier the bitumen particles can be both positive and
negative. Emulsions in which the bitumen droplets are negatively charged are
called anionic emulsions. While,
Emulsions in which the particles are positively charged are called cationic
asphalt emulsion k2 is a medium setting
cationic asphalt, which has positive charge
leading reaction between the
emulsion and pavement. The primer bitumen which is used for emulsification is
obtained from crude oil. Cationic medium setting bituminous asphalt K2 have
many advantages including:
Can use cold materials at remote sites.
The main applications asphalt emulsion k2
are crack filling, bituminous aggregate
mixture and in-place road mixing.
SUPPLY guarantee to supply cationic
bitumen k2 in compliance to the
mentioned specification in table.
Bitumen supply is able to provide every packaging according to customers
of anionic bitumen k2 as per KS 02-769: 1990 standard.
Engler (°E) at 20°C)
(long period test) % water content difference, maximum