ASTM D4259-18

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Designation: D4259 − 88 (Reapproved 2012) D4259 − 18
Standard Practice for
Abrading ConcretePreparation of Concrete by Abrasion
Prior to Coating Application
This standard is issued under the fixed designation D4259; 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
1.1 This practice includes surface preparation of concrete to prepare the surface prior to the application of coatings.
1.2 This practice is intended to alter thecreate a surface profile of the in concrete and to remove foreign materials and weak
surface laitance.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.For specific hazard statements, see Section 5.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
D4258 Practice for Surface Cleaning Concrete for Coating
D4285 Test Method for Indicating Oil or Water in Compressed Air
D4538 Terminology Relating to Protective Coating and Lining Work for Power Generation Facilities
D4541 Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers
2.2 OtherACI Standard:
ACI-308 Guide to Curing Concrete
2.3 SSPC Standard:
SSPC-SP 13 Surface Preparation of Concrete
3. Terminology
3.1 Definitions:
3.1.1 Definitions for use with this standard are shown in Terminology D4538 or other applicable standards.
4. Summary of Practice
4.1 This practice is intended to provide a clean, contamination-free, and roughened surface.
4.2 Acceptable surfaces shall be free of laitance, form release agents, curing agents, oil, grease, and other penetrating
contaminants. The surface shall be free of fins, projections and loosely adhering concrete, dirt, and dust particles.
4.3 For some applications, a minimum concrete surface strength may be required for proper coating performance.
4.4 Acceptable methods of preparation include abrasive blasting (wet or dry), mechanical abrading, water blasting, and other
similar procedures that will alter the surface profile of the concrete.
This practice is under the jurisdiction of ASTM Committee D33 on Protective Coating and Lining Work for Power Generation Facilities and is the direct responsibility
of Subcommittee D33.05 on Application and Surface Preparation.
Current edition approved May 1, 2012Dec. 15, 2018. Published May 2012February 2019. Originally approved in 1983. Last previous edition approved in 20062012 as
D4259 – 88 (2006).(2012). DOI: 10.1520/D4259-88R12.10.1520/D4259-18.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’s Document Summary page on the ASTM website.
Available from American Concrete Institute (ACI), P.O. Box 9094, Farmington Hills, MI 48333-9094, http://www.aci-int.org.
Available from Society for Protective Coatings (SSPC), 800 Trumbull Dr., Pittsburgh, PA 15205, http://www.sspc.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D4259 − 18
5. Significance and Use
5.1 This practice is used to prepare concrete for coatings where optimum bond is desired for service conditions such as
continuous or intermittent immersion, temperature cycling, or mechanical loading.
5. Hazards
5.1 New concrete shall be cured in accordance with ACI-308.
6. Mechanical Abrading Procedure
6.1 Suitable Surfaces—Mechanical abrading is suitable for use on formed surfaces and floors and for the removal of fins and
projections.
6.2 Pre-Surface Preparation:
6.2.1 Remove grease, oil, and other penetrating contaminants. (See Practice D4258.)
6.2.2 Concrete surfaces may be wet or dry as appropriate to the type of equipment to be used.
6.3 Apparatus:
6.3.1 Typical apparatus covered by this method are rotary impact, vertical impact, and circular grinding equipment.
6.3.2 Use the equipment in accordance with the manufacturer’s instructions in an organized manner in order to thoroughly cover
the entire surface to be prepared.
6.4 Appearance of Pr
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