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Variable amounts of pentachlorophenol, solidified in Ordinary Portland cement at a water-to-cement ratio of 0.80, indicate a decrease in mechanical strength of the cement matrix from 13 MPa to 7 MPa. Increase in pore volume and decrease in apparent/bulk, pycnometric density has also been observed as compared to neat cement specimens prepared and cured under the same conditions. Leach tests, performed at 50 C in distilled water, caused a 12% release of immobilized organic compound in about 120 days of leaching period. Present investigations concerning pentachlorophenol and previous results regarding 2,4,5-trichlorophenol do not favour the use of cement matrix as a host material for immobilization of polychlorinated phenols in general.

Additional information

Authors: RIAZ M, JRC Ispra Estab. (IT);ZAMORANI E, JRC Ispra Estab. (IT)
Bibliographic Reference: EUR 12044 EN (1989) MF, 11 pp., ECU 4, blow-up copy ECU 5
Availability: (2)
ISBN: CD-NA-12044-EN-C
Record Number: 198910355 / Last updated on: 1994-12-01
Original language: en
Available languages: en
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