Standard Practice for Surface Cleaning Concrete for Coating

SIGNIFICANCE AND USE
Surface cleaning is used to prepare concrete surfaces for applying coatings intended for light-duty service.
Use of this practice alone is not intended where protective systems will be used for continuous or intermittent immersion, mechanical loading, or for protective systems needing optimum bond for satisfactory performance (see Practices D 4259 and D 4260).
SCOPE
1.1 This practice includes surface cleaning of concrete to remove grease, dirt, and loose material prior to the application of coatings. Procedures include broom cleaning, vacuum cleaning, air blast cleaning, water cleaning, detergent water cleaning, and steam cleaning.  
1.2 This practice is not intended to alter the surface profile of the concrete but to clean the surface.  
1.3 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautions, see Section 5.

General Information

Status
Historical
Publication Date
31-Aug-2005
Current Stage
Ref Project

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ASTM D4258-05 - Standard Practice for Surface Cleaning Concrete for Coating
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D4258–05
Standard Practice for
1
Surface Cleaning Concrete for Coating
This standard is issued under the fixed designation D4258; 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 3.2 Acceptable surfaces shall be free of oil, grease, loosely
adhering concrete, and other contamination. Fins and projec-
1.1 This practice includes surface cleaning of concrete to
tions shall be corrected prior to surface cleaning.
remove grease, dirt, and loose material prior to the application
3.3 Air, water cleaning, scrubbing, sweeping, or vacuuming
of coatings. Procedures include broom cleaning, vacuum
are acceptable cleaning methods. Cleaning agents may also be
cleaning, air blast cleaning, water cleaning, detergent water
used to remove oil and grease spots followed by a fresh water
cleaning, and steam cleaning.
rinse.
1.2 This practice is not intended to alter the surface profile
3.4 Any one or a combination of the listed cleaning proce-
of the concrete but to clean the surface.
dures may be used to achieve acceptably cleaned surfaces.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 Surface cleaning is used to prepare concrete surfaces for
priate safety and health practices and determine the applica-
applying coatings intended for light-duty service.
bility of regulatory limitations prior to use. For specific hazard
4.2 Use of this practice alone is not intended where protec-
statements, see Section 5.
tive systems will be used for continuous or intermittent
2. Referenced Documents immersion, mechanical loading, or for protective systems
2
needing optimum bond for satisfactory performance (see
2.1 ASTM Standards:
Practices D4259 and D4260).
D4259 Practice for Abrading Concrete
D4260 Practice for Liquid and Gelled Acid Etching of
5. Hazards
Concrete
5.1 New concrete shall be cured according to ACI-308 and
D4262 Test Method for pH of Chemically Cleaned or
sufficient additional time allowed for drying.
Etched Concrete Surfaces
5.2 Moisture in the concrete may be detrimental to coating
D4263 Test Method for Indicating Moisture in Concrete by
adhesion. Moisture content shall be in compliance with coating
the Plastic Sheet Method
manufacturer’s recommendation (see Test Method D4263).
D4285 Test Method for Indicating Oil or Water in Com-
5.3 Concrete cure compounds, form release materials, or
pressed Air
concrete hardeners not compatible with the coating may
2.2 Other Standard:
3 require removal by other surface preparation methods as in
ACI-308 Recommended Practice for Curing Concrete
Practices D4259 and D4260.
3. Summary of Practice
6. Procedures
3.1 Surface cleaning is intended to provide a clean,
6.1 Broom Cleaning:
contamination-free surface without removing concrete from
6.1.1 This procedure is intended to remove most surface
intact, sound surfaces.
dust and other loosely adherent solid contaminants.
6.1.2 Broom cleaning shall consist of sweeping the surface
1
This practice is under the jurisdiction of ASTM Committee D33 on Protective
with a clean industrial stiff-bristled broom or similar device.
Coating and Lining Work for Power Generation Facilities and is the direct
Sweepings shall be removed from the immediate work area.
responsibility of Subcommittee D33.05 on Application and Surface Preparation.
6.1.3 Broom-cleaned surfaces require additional cleaning
Current edition approved Sept. 1, 2005. Published September 2005. Originally
approved in 1983. Last previous edition approved in 1999 as D4258 – 83 (1999).
using one or more of the surface preparation procedures
DOI: 10.1520/D4258-05.
specified in 6.2-6.6.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.2 Vacuum Cleaning:
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.2.1 This cleaning procedure is intended to remove surface
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
dust and other debris.
3
Available fromAmerican Concrete Institute (ACI), P.O. Box 9094, Farmington
Hills, MI 48333-9094, http://www.concrete.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D4258–05
6.2.2 Vacuum cleaning shall consist of vacuuming the 6.5.4 Repeat 6.5.2 until water does not bead on the surfaces.
surface with a heavy-duty type industrial vacuum to provide an 6.5.5 Pri
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