Influence of the nature of the demoulding agent on the properties of the formwork–concrete interface

Release agents are a significant source of pollution in the construction and prefabrication industries. Conventional products are known to be toxic for humans and the environment. New formulations based on vegetable esters have appeared on the market to mitigate against this drawback. However, more knowledge is required about the properties and behaviour of these products to make them more attractive for industry. Understanding the phenomena that occur over the formwork–oil–concrete interface is a real challenge. The present paper begins with a physicochemical survey of release agents by defining the formwork–oil and oil–concrete interfaces. It then characterises the formwork–oil– concrete interfaces by dynamic studies (tribometer). Physicochemical mechanisms are proposed. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00249831
• Authors:
  • DE CARO, P
  • DJELAL, C
  • LIBESSART, L
  • DUBOIS, I
• Publication Date: 2007

Language

• English

Media Info

• Pagination: 141-149
• Serial:
  • MAGAZINE OF CONCRETE RESEARCH
  • Volume: 59
  • Issue Number: 2
  • Publisher: Thomas Telford Limited
  • ISSN: 0024-9831

Subject/Index Terms

• TRT Terms: Behavior; Chemical solutions; Concrete; Construction; Dynamics; Organic compounds; Physiology; Pollution; Properties of materials; Toxicity
• ITRD Terms: 9001: Behaviour; 4755: Concrete; 3655: Construction; 5473: Dynamics; 7366: Organic; 2062: Physiology; 2453: Pollution; 5925: Properties; 7131: Solution (chem); 2142: Toxicity
• Subject Areas: Construction; Environment; Geotechnology; Materials; I30: Materials; I32: Concrete; I43: Rock Mechanics;

Filing Info

• Accession Number: 01076281
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Sep 18 2007 10:38AM