GeneralQ Is there a recognized standard addressing pass/fail criteria for abrasion testing of cement mortar shotcrete-lined corrugated steel pipe?
We are not aware of any recognized standard for abrasion testing or acceptance specifically for this application. ASTM International has several abrasion tests for concrete and mortar that include:
- ASTM C418-05, “Standard Test Method for Abrasion Resistance of Concrete by Sandblasting”;
- ASTM C779/C779M-05(2010), “Standard Test Method for Abrasion Resistance of Horizontal Concrete Surfaces”;
- ASTM C944/C944M-99(2005)e1, “Standard Test Method for Abrasion Resistance of Concrete or Mortar Surfaces by the Rotating-Cutter Method”; and
- ASTM C1138M-05(2010)e1, “Standard Test Method for Abrasion Resistance of Concrete (Underwater Method).”
Also, ACI 350-06, “Code Requirements for Environmental Concrete Structures,” Section 4.6, has requirements for protection against erosion.
