Affiliations 

  • 1 School of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia. samailasaleh@graduate.utm.my
  • 2 School of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
Environ Sci Pollut Res Int, 2020 Jun;27(17):21252-21259.
PMID: 32266626 DOI: 10.1007/s11356-020-08549-y

Abstract

In civil engineering, many geotechnical and forensic projects employ polyurethane (PU) for ground improvement, and the results have shown to be effective in terms of time and cost savings. However, similar to many other chemical stabilisers, the use of PU for soil stabilisation may have environmental repercussions. Therefore, this paper utilised a toxicity characteristic leaching procedure (TCLP) to investigate the potential for ground contamination resulting from the application of PU for the stabilisation of marine clay. Furthermore, the hazardousness of PU during the stabilisation of marine clay was investigated by testing its reactivity, ignitability, corrosivity and physical properties. The results reveal that the quantity of heavy metals present in PU is far below the regulatory limits. The results further confirm that PU is odourless and non-corrosive and that it is non-cyanide and non-sulphide-bearing. However, PU is capable of igniting. Overall, the potential application of PU for ground improvement is promising due to its environmental friendliness.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.