The effect of super- and hyperplasticizer dosage on the rheotechnological properties of cement suspensions

The article investigates the effect of super- and hyperplasticizer dosages on the rheotechnological properties of cement suspensions. Experiments conducted with polycarboxylate-based plasticizers showed that their effectiveness directly depends on the dosage and type of cement. It was found that the hyperplasticizer Melflux, at a dosage of 0.9% of the cement mass, provides a significant water-reducing effect and maintains the fluidity of the suspension with minimal changes (6-8.7%) over 30 minutes. The results highlight the need for precise dosage selection and studying their influence on the rheology of cement mixtures to optimize the production of concretes with improved performance characteristics.