THE INFLUENCE OF DIFFERENT CURING ENVIRONMENTS ON THE BEHAVIOR OF CEMENT-BASED GROUTS USED IN CONTAMINATED SOIL TREATMENT

This paper details the results of a preliminary investigation into the influence of different curing environments for accelerating the aging of four cement-based grouts used to treat contaminated materials soils. The grouts consisted of a combination of cement, ash, lime and bentonite. The behavior of both uncontaminated and contaminated materials was considered. The contaminants used comprised compounds of five heavy metals (Pb, Cu, Cd, Ni and ZN) and paraffin oil. Samples were cured adopting exposure to elevated temperature and carbon dioxide (accelerated carbonation). Tests were conducted for strength, carbonated depth, leachate pH and x-ray diffraction after 28, 90 and 180 days of curing. The results suggested that the four grouts behaved differently under these different curing conditions, with the exposure to elevated temperature being the more consistent of the two environments.

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  • English

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  • Accession Number: 00988602
  • Record Type: Publication
  • ISBN: 0784407444
  • Report/Paper Numbers: Volume II
  • Files: TRIS
  • Created Date: Apr 5 2005 12:00AM