Pressurized Water Cleaning of Concrete and Cementitious Materials—Light Cleaning

This standard includes procedures for using pressurized water to remove loosely adhered surface contaminants. It contains requirements for the cleaning process, for the end condition of a lightly cleaned concrete surface, and for verification of the end condition. The standard does not address removal of water-insoluble contamination; assessment of concrete soundness and pH; repair of the substrate and exposed reinforcing steel; or required surface profile (see Paragraphs A1, A2, and A3 of Appendix A [nonmandatory]). Light cleaning by pressurized water will not create a concrete surface profile, it will only expose existing profile. SSPC-SP 13/NACE No. 6 contains additional information on these topics.

Before the publication of this standard, the concrete coating industry lacked standards that define the end condition of concrete surfaces cleaned using pressurized water.