Industry News

ASTM Publishes Test Method for Replication & Measurement of Concrete Surface Profiles

Published on 2011-03-10. Author : SpecialChem

W. CONSHOHOCKEN, Pa. -- The texture - often called the profile - of concrete is one of the most important characteristics of a coating or overlayment bonding. A new ASTM International standard now fulfills the need within the concrete surface preparation field for a means of measuring and permanently replicating the profile of a concrete coated building surface.

ASTM D7682, Test Method for Replication and Measurement of Concrete Surface Profiles Using Replica Putty, was developed by Subcommittee D01.46 on Industrial Protective Coatings, part of ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications.

"This technique uses replica putty to make impressions of concrete surfaces for either visual comparison or for quantifying the surface roughness," says David Beamish, general manager, DeFelsko Corp., and a D01 member.

The new standard will be useful to several different parties:

  • Coating inspectors can retain profile replicas that can be viewed or measured on-site, prior to coating application, and used as a pass/fail test of whether surface preparations meet specifications;
  • Owners can retain replicas should a failure occur;
  • Contractors can retain replicas for verification of adherence to the specification's required anchor profile ranges;
  • Coating manufacturers can designate within the product data sheet the range requirements for the coating being used on the project, and
  • Engineers can write specifications utilizing the coating manufacturer's product data sheets that designate a profile range for the required coating.

About ASTM International

ASTM International is one of the largest international standards development and delivery systems in the world. ASTM International meets the World Trade Organization (WTO) principles for the development of international standards: coherence, consensus, development dimension, effectiveness, impartiality, openness, relevance and transparency. ASTM standards are accepted and used in research and development, product testing, quality systems and commercial transactions.

Source: ASTM International

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