Standard tests for repair materials and coatings for concrete. Part 2: Permeability tests
Technical Note TN 140
Document Status
Current
Supplement
Civil & Structural Supplement
Series
Technical Note
Abstract
Covers methods of test suitable for the determination of permeability to gases, water and chloride. The basic mechanisms of permeability were studied and it was determined that repairs and coatings above ground that are subject to traffic spray, salt solution ponding and carbonation due to carbon dioxide in the atmosphere should be assessed with respect to their protective properties in relation to water absorption, water vapour diffusion, carbon dioxide diffusion, and chloride ion diffusion. A number of factors have been identified that need to be standardised in the procedures of the tests selected. The tests identified were divided into eleven broad categories and studied for their relevance to the required mechanisms. Finally tests have been selected that are thought suitable for assessing repair materials and coatings for their permeability to water, vapour, gases and salts.
ISBN
9780860173359
Subjects
- Concrete repair compounds
- Cleaning/repair products
- Coverings and surface finishes
- Materials
- Surface finishes
Publisher History
CIRIA was formerly known as the Construction Industry Research and Information Association. They are a member-based research and information organisation who publish reports and technical papers covering building and civil engineering as well as transport and utilities infrastructure.
Information
NBS
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
Accuris
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