Stabilization of Fly Ashes by Binder Obtained from Processed Oil Sludge in Road Constructions

Title: Stabilization of Fly Ashes by Binder Obtained from Processed Oil Sludge in Road Constructions
Author(s): Kraszewski
Paper category : conference
Book title: International RILEM Conference on the Use of Recycled Materials in Building and Structures
Editor(s): E. Vázquez, Ch. F. Hendriks and G.M.T. Janssen
Print-ISBN: 2-912143-52-7
e-ISBN: 2912143756
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 1017 - 1025
Total Pages: 9
Nb references: 5
Language: English

Abstract: The process of crude oil refining involves the production of hazardous waste in the form of
hydrated deposits containing hydrocarbons and other environmentally toxic chemical
compounds, including heavy metals. Post-refinery oil sludge is difficult to treat and is
classified as hazardous waste.
One of the methods of treating this type of waste involves solidification in powder or
granulate form. The study presents the results of tests involving solidified refinery deposits in
the powder form as a binder for the stabilisation of fly ashes in road construction. Ashes
which are characterised by excessive expansion, low bearing capacity and which do not meet
standard requirements have been treated with a small addition of 2÷6% solidified refinery
deposit. Test results indicate that solidified deposits are capable of stabilising fly ashes. Fly
ashes treated with a small addition of solidified refinery deposits take on new, improved
geotechnical properties, rendering such compounds useful for application even in the top
layers of road embankments and layers of the treated substrate. The application of solidified
deposit binders provides an alternative to the costly technology of ash treatment involving
mineral materials or stabilisation with conventional binders such as cement or lime.

Online publication: 2004-09-29
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143756.112

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