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Slurry designs are performed free of charge. However, the following conditions apply:

  1. Only Colas clients are entitled to a Colas slurry design.
  2. A minimum binder order is applicable.
  3. Aggregate should conform to (at least) the grading requirements for crushed aggregate intended for use in slurry seals, as specified by COLTO.

In cases where conditions 2 and/or 3 are not met, the Colas Central laboratory would still be happy to advise clients on the optimum mix proportions for a specific slurry mixture, based on experience and by conducting minimal testing