Polycarboxylate Ether is the Only Answer for High Slump Without Segregation Stop using naphthalene-based superplasticizers for high-slump concrete. You will get segregation. The best superplasticizer for concrete high slump without segregation is a high-range polycarboxylate ether (PCE). This is not an opinion. It is a chemical fact. PCE molecules use steric hindrance, not just electrostatic …
