Glenium 103 Suretec
GLENIUM 103 SURETEC is a new generation
superplasticiser with super retention technology. It
contains polycarboxylate ether polymers and is specially
formulated for ready-mix concrete where slump
retention, high strength and durability are required in hot
climates. The excellent dispersion effect makes
GLENIUM 103 SURETEC the ideal admixture for the
ready-mix concrete industry. The ability to work with low
water /cement ratios and still obtain extended slump
retention allows for the manufacture of high quality
concrete.
GLENIUM 103 SURETEC is free of chloride and
complies with BS5075 : Part 3 : 1985, and is also
compatible with all cements meeting recognised international standards.
Conventional superplasticisers, such as those based on
sulphonated melamine and napthalene formaldehyde
condensates, at the 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. GLENIUM 103 SURETEC is
differentiated from conventional superplasticisers in that
it is based on a unique polycarboxylate ether polymer
with long lateral chains. This greatly improves cement
dispersion. At the start of the mixing process the same
electrostatic dispersion occurs as described previously,
but the presence of the lateral chains, linked to the
polymer backbone, generates a steric hindrance which
stabilises the cement particles capacity to separate and
disperse.
This mechanism provides flowable concrete with greatly
reduced water demand.