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Treated Used Engine Oil as a Concrete Admixture

Choong, Koo Ting (2011) Treated Used Engine Oil as a Concrete Admixture. Universiti Teknologi Petronas. (Unpublished)

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Over the years, plenty of studies have proven that the used engine oil (UEO) can be used as a concrete admixture to improve workability and also the air content of the concrete, thus making UEO a potential green alternative to the traditional water reducers and air entraimnent agents. However, the UEO have a wide range of impurities, and some of the impurities are ionic compounds, such as acids, sulphates, phosphates, chlorides and heavy metal oxides which are traditionally harmful components towards the durability of concrete. Purpose of this project is to treat the UEO using ionic liquid (IL), determine the effects of different types ofUEO, as well as their constituent on concrete in terms of workability, compressive strength and porosity. A total of 5 UEO samples collected from different sources and 5 different ILs are tested for performance of phase separation first. ILs used in this project are: 2-hydroxy ethylanunonium formate (HEF), bis(2-hydroxylethyl) methyl anunonium formate (BHEF), 2-hydroxyethyl anunomum acetate (HEA), 1-n-butyl-3-methylirnidazolium thiocyanate ([bmim][SCN]), and 1-butyl-3-methylimidazolium acetate ([bmim][Ac]). Samples of UEO are mixed with IL at I: 1 ratio for extraction, where mixture stirred at SOOrpm for 30 minutes, and then left for settlement for 3 days. HEF is chosen to · produce treated UEO (TUEO) due to overall better phase separation. Impurities removal rates by HEF are roughly estimated, where it is noted to be efficient at extracting 803, CaO, ZnO and MgO. Unfortunately, HEF causes an increase in acidity in two TUEO samples, which cause decreased concrete strength.

Item Type: Final Year Project
Academic Subject : Academic Department - Civil Engineering - Water and environment - Water
Divisions: Engineering > Civil
Depositing User: Users 2053 not found.
Date Deposited: 12 Jul 2013 09:21
Last Modified: 25 Jan 2017 09:41
URI: http://utpedia.utp.edu.my/id/eprint/6650

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