... a high range water reducer, high concentration naphthalene-based superplasticizer, also named Naphthalene Sulfonate Formaldehyde Condensate (NSF), SNF, PNS and ... the requirements of chemical admixture specifications for concrete: comply with ASTM C 494, Type F. ASTM C 1017, ... segregation and improves the encapsulation force of the concrete with reinforcing steel bar.Strengthening: Given the same amount ...