Controlled Low Strength Material (CLSM)

Mixes are designed with minimal strengths from 50psi to 1200psi.  The lower strengths are designed to be excavatable and can be used for temporary back fill or for permanent backfill in locations that you may need to excavate in the event of an unforeseen repair.  They are designed to be flowable for easy placement and many of the mix designs are designed to be pumped for locations that cannot be easily accessed by the ready mix concrete truck.