Sika Grout Aid， is an expansive admixture.when mixed with cement，and and water on site，a good quality grouting mortar is obtained.Sika Grout Aid， produces a non-shrink grout.Sika Grout Aid， can be used to grout bridge bearings，anchors，machine foundations，steel coluns as well as inverted construction methods，etc. Use Sika Grout-Aid， or equivalent， as a grout additive. Sika Grout-Aid contains a superplastizer and expansion agents. Do not use additives in mortar， except colors in accordance with manufacturers recommendations. ...