ASTM D4261-05(2012)

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 masonry units 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 may alter the surface profile of the concrete but is primarily intended to clean the surface.
1.3 This standard does not purport to address all of the safety concerns, 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-Apr-2012
• 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 D4261-05 - Standard Practice for Surface Cleaning Concrete Masonry Units for Coating
• Effective Date: 01-May-2012
• Replaced By: ASTM D4261-05(2018) - Standard Practice for Surface Cleaning Concrete Masonry Units for Coating
• Effective Date: 01-Aug-2018
• 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-May-2012

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 (Reapproved 2012)
Standard Practice for
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-
sonry units to remove dust, dirt, mortar spatter, oil, and grease 3.3 Vacuum cleaning, air blast cleaning, water cleaning,
prior to the application of coatings. Procedures include vacuum
detergent water wash, steam cleaning, hand tool, and mechani-
cleaning, air-blast cleaning, water cleaning, detergent water cal cleaning are acceptable cleaning methods.
wash, steam cleaning, and mechanical cleaning.
3.4 Any one or a combination of listed cleaning procedures
1.2 This practice may alter the surface profile of the
may be used to achieve acceptably cleaned surfaces.
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
safety concerns, if any, associated with its use. It is the
4.1 Surface cleaning is to be used to prepare concrete unit
responsibility of the user of this standard to establish appro-
masonry surfaces for applying coatings intended for light duty
priate safety and health practices and determine the applica-
service, splash and spillage of water and chemical solutions,
bility of regulatory limitations prior to use. For specific hazard
radiation exposure, decontamination, and repeated washdowns
statements, see Section 5.
with alkaline cleaners.
2. Referenced Documents
5. Cautions
2.1 ASTM Standards:
5.1 Moisture in concrete unit masonry may be detrimental
D4258 Practice for Surface Cleaning Concrete for Coating
to coating adhesion. Moisture content shall be in compliance
D4262 TestMethodforpHofChemicallyCleanedorEtched
with the coating manufacturer’s recommendations (see Test
Concrete Surfaces
Method D4263 for moisture test method).
D4263 Test Method for Indicating Moisture in Concrete by
the Plastic Sheet Method
6. Procedures
2.2 Other Standard:
ACI 531.1-76 Specification for Concrete Masonry Construc-
6.1 Steam Cleaning—This procedure is intended to remove
tion
heavy deposits of grease and oil, as well as other water soluble
surface contaminants and emulsifiable materials, with a jet of
3. Summary of Practice
high pressure steam, in accordance with Practice D4258.
3.1 Surface cleaning is intended to provide a clean,
6.2 Detergent Water Wash—This procedure is intended to
contamination-free surface suitable for the application of
remove water soluble surface contaminants, oils, grease, and
coatings.
other emulsifiable materials with an aqueous solution of
3.2 Acceptable surfaces shall be free of dust, dirt, mortar
detergent or nonsolvent emulsifier in accordance with Practice
spatter, oil, grease, and other contaminants. Mortar joints shall D4258.
6.3 Water Cleaning—This procedure is intended to remove
This practice is under the jurisdiction of ASTM Committee D33 on Protective
dust, dirt, and water soluble contaminants with a stream of
Coating and Lining Work for Power Generation Facilities and
...