Recycling Waste Latex Paint in Concrete with Added Value

Waste latex paint (WLP) has developed into North America's largest collected liquid waste material (by volume), because of development of municipal waste collection programs and increasingly more stringent environmental regulations. For environmental and economic reasons, then, WLP disposal has become a major concern. There is a gradual shift within the concrete industry at the same time toward green materials and practices, with sustainable development gaining a special focus. WLP recycling may be possible in concrete manufacturing with added value because some key properties of concrete can be improved through latex. Fresh, mechanical, and durability concrete properties incorporating various WLP proportions were investigated in this study. Along with a full-scale field test for stamped WLP concrete deck and sidewalk construction, leaching tests were conducted on aged concrete specimens in which WLP was incorporated. WLP addition did not reduce initial concrete setting time, whereas there was slight reduction in final setting time, perceived as an advantage. There was less curing regime vulnerability in concrete incorporating WLP than in conventional concrete. With WLP addition, there was a decrease in compressive strength, but for structural application adequate strength results could be obtained with up to 20% mixing water WLP partial replacement. With the addition of WLP, concrete flexural strength increased. WLP addition also significantly enhanced concrete durability, and in leaching tests of 300 freezing-and-thawing cycle subjected WLP concrete specimens no significant toxic substance emission was detected. A full-scale stamped concrete deck and sidewalk construction test indication additional WLP concrete field applicability advantages.

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  • Authors:
    • Mohammed, Abdulrahman
    • Nehdi, Moncef
    • Adawi, Aiham
  • Publication Date: 2008

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01108946
  • Record Type: Publication
  • Report/Paper Numbers: 105-M42
  • Files: TRIS
  • Created Date: Aug 8 2008 9:42AM