Special Grout 550

Five Star® Special Grout 550 is the first cement-based, non-shrink grout formulated for grouting at temperatures up to 115ºF (46ºC) with no ice or cold water.  It is a high performing, versatile, hot weather precision grout.  Five Star Special Grout 550 meets the performance requirements of ASTM C 1107-02 Grades A, B.


  • Air release technology per ACI 351.1 R
  • Precision nonshrink
  • 95% effective bearing area is typically achieved following proper grouting procedures
  • Long working time
  • No ice or cold water required for placement temperatures up to 115ºF (46ºC)


  • Grouting structural columnds in extreme hot weather
  • Grouting anchors in extreme hot weather
  • Grouting large, heavy operating equipment in extreme hot weather
  • Grouting precast and prestressed panels in extreme hot weather