The main families
| Family | Primary function | Typical selection driver |
|---|---|---|
| PCE (polycarboxylate) | High water reduction with slump retention | Ready-mix, long haul, high-performance and low-carbon cement systems |
| SNF / BNS (naphthalene) | High water reduction, robust and lower cost | Cost-sensitive mixes, short haul, regions with established supply |
| Accelerators | Early strength / set acceleration | Precast, cold weather, sprayed concrete |
| Expansive agents | Compensate shrinkage | Water-retaining and crack-controlled structures |
| Grouting admixtures | Flow, stability, non-shrink performance | Precision grouting, anchoring, repair |
Entries in this section
See also How to select a superplasticizer and the product catalogue.
Frequently asked questions
Are PCE and polycarboxylate superplasticizer the same thing?
Yes — PCE (polycarboxylate ether) is the standard industry shorthand for polycarboxylate-based high-range water reducers, classified as Type F/G under ASTM C494 and as high-range water reducers under EN 934-2.
What determines admixture dosage?
Binder composition, water-to-binder ratio, aggregate grading, ambient temperature, haul time and the target slump retention. Dosage must be confirmed by trial mixes on the actual materials; published ranges are only a starting point.
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