ASTM D4261-05

Standard Practice for Surface Cleaning Concrete Masonry Units for Coating

SIGNIFICANCE AND USE
Surface cleaning is to be used to prepare concrete unit masonry surfaces for applying coatings intended for light duty service, splash and spillage of water and chemical solutions, radiation exposure, decontamination, and repeated washdowns with alkaline cleaners.
SCOPE
1.1 This practice covers surface cleaning of concrete unit masonry to remove dust, dirt, mortar spatter, oil, and grease prior to the application of coatings. Procedures include vacuum cleaning, air-blast cleaning, water cleaning, detergent water wash, steam cleaning, and mechanical cleaning.  
1.2 This practice is not intended to alter the surface profile of the concrete masonry units but to clean the surface.  
1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 5.

General Information

• Status: Historical
• Publication Date: 30-Nov-2005
• ICS: 91.080.40 - Concrete structures
• Technical Committee: D33 - Protective Coating and Lining Work for Power Generation Facilities
• Drafting Committee: D33.05 - Application and Surface Preparation

Relations

• Replaces: ASTM D4261-83(1999) - Standard Practice for Surface Cleaning Concrete Unit Masonry for Coating
• Effective Date: 01-Dec-2005
• Replaced By: ASTM D4261-05(2012) - Standard Practice for Surface Cleaning Concrete Masonry Units for Coating
• Effective Date: 01-May-2012
• Referred By: ASTM D5498-12a(2018) - Standard Guide for Developing a Training Program for Personnel Performing Coating and Lining Work Inspection for Nuclear Facilities
• Effective Date: 01-Dec-2005

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D4261–05
Standard Practice for
1
Surface Cleaning Concrete Masonry Units for Coating
This standard is issued under the fixed designation D4261; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope be struck flush or tooled with a round jointer and shall be free
of rough edges and nibs (see ACI 531.1-76).
1.1 This practice covers surface cleaning of concrete ma-
3.3 Vacuum cleaning, air blast cleaning, water cleaning,
sonry units to remove dust, dirt, mortar spatter, oil, and grease
detergent water wash, steam cleaning, hand tool, and mechani-
priortotheapplicationofcoatings.Proceduresincludevacuum
cal cleaning are acceptable cleaning methods.
cleaning, air-blast cleaning, water cleaning, detergent water
3.4 Any one or a combination of listed cleaning procedures
wash, steam cleaning, and mechanical cleaning.
may be used to achieve acceptably cleaned surfaces.
1.2 This practice may alter the surface profile of the
concrete but is primarily intended to clean the surface.
4. Significance and Use
1.3 This standard does not purport to address all of the
4.1 Surface cleaning is to be used to prepare concrete unit
safety concerns, if any, associated with its use. It is the
masonry surfaces for applying coatings intended for light duty
responsibility of the user of this standard to establish appro-
service, splash and spillage of water and chemical solutions,
priate safety and health practices and determine the applica-
radiation exposure, decontamination, and repeated washdowns
bility of regulatory limitations prior to use. For specific hazard
with alkaline cleaners.
statements, see Section 5.
5. Cautions
2. Referenced Documents
2
5.1 Moisture in concrete unit masonry may be detrimental
2.1 ASTM Standards:
to coating adhesion. Moisture content shall be in compliance
D4258 Practice for Surface Cleaning Concrete for Coating
with the coating manufacturer’s recommendations (see Test
D4262 Test Method for pH of Chemically Cleaned or
Method D4263 for moisture test method).
Etched Concrete Surfaces
D4263 Test Method for Indicating Moisture in Concrete by
6. Procedures
the Plastic Sheet Method
6.1 Steam Cleaning—This procedure is intended to remove
2.2 Other Standard:
heavy deposits of grease and oil, as well as other water soluble
ACI Specification 531.7-76 Specification for Concrete Ma-
3 surface contaminants and emulsifiable materials, with a jet of
sonry Construction
high pressure steam, in accordance with Practice D4258.
3. Summary of Practice 6.2 Detergent Water Wash—This procedure is intended to
remove water soluble surface contaminants, oils, grease, and
3.1 Surface cleaning is intended to provide a clean,
other emulsifiable materials with an aqueous solution of
contamination-free surface suitable for the application of
detergent or nonsolvent emulsifier in accordance with Practice
coatings.
D4258.
3.2 Acceptable surfaces shall be free of dust, dirt, mortar
6.3 Water Cleaning—This procedure is intended to remove
spatter, oil, grease, and other contaminants. Mortar joints shall
dust, dirt, and water soluble contaminants with a stream of
water under pressure, in accordance with Practice D4258.
1
This practi
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