Abrasive Blast Cleaning of Concrete and Cementitious Materials – Thorough Blast Cleaning

This standard defines the Thorough Blast Cleaning level of surface cleanliness achieved using abrasive blast cleaning. The standard includes requirements for the resulting condition of the surface as determined by visual inspection and materials and procedures used to achieve and verify the resulting condition. Additional notes are provided in Appendix A (nonmandatory).

This standard is limited to requirements for removal of visible surface contaminants and existing coatings from concrete surfaces, and procedures for verification. Specific requirements for concrete soundness, surface profile range, and repair of the substrate and any exposed reinforcing steel are beyond the scope of this standard (see Paragraphs A1, A2, and A3).

The requirements of this standard apply to all types of concrete as defined in Section 2 (see Paragraph A4). If a visual guide or comparator is specified to supplement the written standard, determine the initial condition of the concrete prior to blast cleaning before the blast cleaning commences (see Paragraph A5).

Units of Measure: This standard provides both IEEE⁽¹⁾/ASTM SI 10, “American National Standard for Metric Practice” International System Units (SI), and U.S. Customary units. The measurements are not exact equivalents; therefore, each system must be used independently of the other. Where both sets of units are shown, SI units are presented first, with approximate U.S. Customary values shown in parentheses.

This standard has been revised to ensure relevancy within the industry and to conform to AMPP’s formatting guidelines.