University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Effects of foundry dusts on the mechanical, microstructural and leaching characteristics of a cementitious system

Gervais, C and Ouki, SK (2000) Effects of foundry dusts on the mechanical, microstructural and leaching characteristics of a cementitious system Waste Management Series, 1. pp. 782-790.

Full text not available from this repository.

Abstract

The disposal or recycling of industrial wastes has been an important and complex issue for the last 20 years. Hydraulic binders have been widely use to treat and/or reuse waste materials. Synthetic wastes are commonly studied but it does eliminate synergistic waste/binder interference effects that can result from real wastes, which are often composed of complex chemical compounds. The objective of this research was to investigate the possibility of reusing waste from the foundry industry. For this purpose, 3 wastes from foundry plants have been selected based on their common metal contaminants. Therefore, the objective of this paper is to investigate the effects of the major metal contaminants, Pb, Zn and Mn, on the mechanical (setting time, unconfined compressive strength (UCS)) microstructural (X-ray diffractometry (XRD)) and leaching characteristics (acid neutralisation capacity test) of the solidified waste materials. The results showed that the addition of the wastes induced a retardation of the setting time, which is believed to be due to the presence of Zn, which is a known retardant. It was also revealed that, at equal water/cement ratio and after 28 days, the UCS of most waste products is within ±10% of the controls. The mineralogical composition, as depicted by the XRD results, was particularly affected as shown by the clear increase of the non-hydrated products. Finally, the addition of the different wastes was shown to have no effect on the buffering capacity of the solidified products.

Item Type: Article
Authors :
NameEmailORCID
Gervais, CUNSPECIFIEDUNSPECIFIED
Ouki, SKs.ouki@surrey.ac.ukUNSPECIFIED
Date : 1 January 2000
Identification Number : 10.1016/S0713-2743(00)80088-4
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:34
Last Modified : 17 May 2017 15:04
URI: http://epubs.surrey.ac.uk/id/eprint/835887

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800