Glenium 270B Suretec
GLENIUM 270B SURETEC is a super-plasticiser of a
new generation based on modified polycarboxylic ether
polymers with super retention technology. The excellent
dispersion effect makes GLENIUM 270B SURETEC the
ideal admixture for ready mix concrete industry, when
superior performance is required, even under difficult
conditions.
GLENIUM 270B SURETEC combines exceptional long
slump life with normal setting times. Its application is
especially beneficial when used in hot climate or with
demanding mix designs. GLENIUM 270B SURETEC
does not contain added chloride and conforms to
chloride ion limits required by concrete industry
standards.
GLENIUM 270B SURETEC is universally applicable
and provides improved rheological properties for a widerange
of concrete mixes. Performance of GLENIUM
270B SURETEC in concrete is superior to conventional
superplasticisers due to its unique polycarboxylate ether
design.
Conventional superplasticisers, such as those based on
sulphonated melamine and naphthalene formaldehyde
condensates, at the same time of mixing, become
absorbed onto the surface of the cement particles. This
absorption takes place at a very early stage in the
hydration process. The sulphonic groups of the polymer
chains increase the negative charge on the surface of
the cement particle and dispersion of the cement occurs
by electrostatic repulsion.
Contrary to conventional superplasticisers the dispersion
mechanism of GLENIUM 270B SURETEC is not only
based on electrostatic repulsion but in addition also on
steric hindrances. GLENIUM 270B SURETEC
achieves outstanding water reduction and workability
retention without retardation of setting time.