Meaning and use

4.1 Surface cleaning shall be applied to the preparation of masonry surfaces of concrete units for coating for light service, spatter and spill of water and chemical solutions, radiation exposure, decontamination and repeated rinsing with alkaline cleaners.

ASTM D4261-18 Standard Practice for Surface Cleaning of Concrete Blocks for Coating

Step 1: Scope

1.1 This practice includes surface cleaning of the concrete block unit prior to application of paint to remove dust, dirt, mortar spatter, oil and grease. Procedures include vacuum cleaning, jet cleaning, water cleaning, detergent washing, steam cleaning and mechanical cleaning.

1.2 This practice may change the surface profile of the concrete, but is mainly used to clean the surface.

1.3 This standard is not intended to address all safety concerns, if any, associated with its use. It is the responsibility of users of this standard to establish appropriate safety, health and environmental practices and to determine the applicability of regulatory restrictions prior to use. See Section 5 for specific hazard descriptions.

1.4 This international standard is based on internationally recognized standardization principles established in the “Decision on Principles for the Development of International Standards, Guidelines and Recommendations” issued by the Committee on Technical Barriers to Trade (TBT) of the World Trade Organization.