JBS SUPERPLAST-N Naphthalene Based is a dark brown liquid admixture for concrete, based on sulphonated naphthalene polymers it
is a liquid Super plasticizing admixture for cement concrete and mortar. It retains to workability of concrete for few hours.
Area of Application
Ready Mix concrete for normal grades.
Precast / Pre stressed concrete.
Pumped concrete / Pre stressed concrete girders.
For flowing concrete in Slab, Walls, Columns, Beams.
JBS SUPERPLAST-N is added with mixing water to its addition wet aggregate cement mix at the rate 0.5% to 2.0% by
weight of cement, however the optimum dose depends on the type of mix, grade of concrete, cement quantity and the desired
workability. So a trial operation to be carried out to establish the exact dosage rate required. It is compatible with all types of
cement.
Primary uses to obtain:
High volume Fly Ash concrete.
High volume slag concrete.
High performance concrete.
Highly slump, flowable concrete
Mechanism of Action: Conventional Superplasticiser, based on Sulphonated Naphthalene Formaldeyde condensates, at the time of
mixing getting absorbed onto the surface of cement particles. This absorption takes place at very early stage in the
hydration process. The sulphonic groups of the polymer chains increases the negative charges on the surface of the cement
particle and the dispersion of the cement occurs by Electrostatic Repulsion.
JBS SUPERPLAST-N is differentiated from conventional superplasticisers in that it is based on unique carboxylic
ether polymer with long lateral chains. This greatly improves the cement dispersion. At the start of the mixing process the
same electrostatic dispersion takes place as described above; but the presence of the lateral chains, linked to the polymer
backbone, generate a Steric Hindrance which stabilizes the cement particles capacity to separate & disperse. This
mechanism provides fluid concrete with greatly reduced water demand with longer retention.
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