Pumping Aids: Enhance the pumpability of concrete, lessening the chance of segregation and blockages in the course of placement. They may be either anodic, cathodic, or a combination. Some operate to create a protective barrier that stabilizes the layer of rust encompassing the metal, others give a slim protective coating https://www.tjcyindustrialchem.com/news/cement-additives-and-concrete-admixtures-key-differences.html