SPEC MIX® Underground Utility Mortar is a dry preblended mortar mix containing Portland cement and hydrated lime, masonry cement or mortar cement and dried masonry sand formulated for superior bond and outstanding freeze-thaw resistance in all underground pre-cast concrete structure applications. Meets ASTM C 270, ASTM C 1714, and CSA A 179 requirements. In addition to custom mix designs that are available for specific applications or properties, SPEC MIX Underground Utility Mortar is designed to be compatible with the characteristics of the specified pre-cast concrete structure or brick used in manhole and catch basin construction. SPEC MIX Underground Utility Mortar is acceptable for use above or below grade, for the jointing of all types of underground pre-cast concrete utility construction, and laying concrete brick in manholes and catch basins.

SPEC MIX Underground Utility Mortar is produced under strict manufacturing standards, and complete quality control measures are implemented with each batch. A digital printout displaying the proper proportions per batch may be kept as a permanent record. Submittals are available upon request for certification to applicable ASTM, TMS, and CSA standards.