vitcon 9012 rp is a set retarding admixture for concrete. it is used for increasing working time higher durability, reducing shrinkage and permeability of concrete. vitcon 9012 r conforms to specification prescribed in is 9103 - 1999 & astm c 494, type b.technical specifications: colour: dark brown form: liquid specific gravity: 1.18 ± 0.02 chloride content: < 0.2% applications: structural concrete long transport distance bridge decks warm weather applications light weight concrete highway concrete mass concrete