Conplast SP430 is based on Sulphonated Napthalene Polymers and supplied as a brown liquid instantly dispersible in water. Conplast SP430 has been specially formulated to give high water reductions upto 25% without loss of workability or to produce high quality concrete of reduced permeability.
Superplasticising admixture Uses
To produce pumpable concrete
To produce high strength, high grade concrete M30 & above by substantial reduction in water resulting in low permeability and high early strength.
To produce high workability concrete requiring little or no vibration during placing. Advantages
Improved workability – Easier, quicker placing and compaction.
Increased strength – Provides high early strength for precast concrete with the advantage of higher water reduction ability.
Improved quality – Denser, close textured concrete with reduced porosity and hence more durable.
Higher cohesion – Risk of segregation and bleeding minimised; thus aids pumping of concrete
Chloride free – Safe in prestressed concrete and with sulphate resisting cements and marine aggregates. Standards compliance Conplast SP430 complies with IS:9103:1999 and BS:5075 Part 3 .Conplast SP430 conforms to ASTM-C-494 Type ‘F’ and Type ‘A’ depending on the dosages used.
Properties :
Specific gravity 1.220 to 1.225 at 300C
Chloride content Nil to IS:456
Air entrainment Approx. 1% additional air is entrained
Compatibility : Can be used with all types of cements except high alumina cement.
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