SikaPlast® PH 8632 (formerly known as MasterPolyheed® 8632)

Retarding superplasticizer based on PCE for Ready-Mix Concrete

MasterPolyheed 8632 is an economical admixture based on modified polycarboxylic ether. The product has been primarily developed for applications in ready mix and site-batched concrete. MasterPolyheed 8632 is specially designed to allow considerable reduction of mixing water while maintaining control on extend of set retardation.
MasterPolyheed 8632 is free of chloride & low alkali. It is compatible with all types of cements.

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RECOMMENDED USES

Ready mixed concrete
Long-distance transporting
Pumped concrete
High workability without segregation or bleeding
High performance concrete for durability
Congested/complex reinforced sections
Mixes requiring >20% water reductions
Suitable for Concrete Piles

FEATURES AND BENEFITS

Good dispersion even in mixes with high fines
High workability for longer periods
Lower pumping pressure
Resistance to segregation even at high workability
Extended setting with longer workability
Reduced water content for a given workability
Higher ultimate strengths
Increased ease in finishing concrete

APPLICATION

MasterPolyheed 8632 is a ready-to-use liquid which is dispensed in to the concrete together with the mixing water. The plasticizing effect and water reduction are higher if the admixture is added to the damp concrete after 50 to 70% of the mixing water has been added. The addition of MasterPolyheed 8632 to dry aggregate or cement is not recommended.

Thorough mixing is essential and a minimum mixing cycle, after the addition of the MasterPolyheed 8632, of 60 seconds for forced action mixers is recommended.