The effects of copper tailings on acid and chloride resistance of concretes

Author(s): O. Onuaguluchi, Ö. Eren
Paper category: Conference
Book title: 2nd International conference on Microstructural-related Durability of Cementitious Composites
Editor(s): Guang Ye, K. Van Breugel, Wei Sun, Changwen Miao
Print ISBN: 978-2-35158-129-2
e-ISBN: 978-2-35158-123-0
Publisher: RILEM Publications SARL
Pages: 1415- 1421
Total Pages: 6
Language: English

The use of industrial wastes such as fly ash, silica fume, slag etc. as cementing materials in mortar and concrete have undergone considerable development and notable successes have been achieved. However, the quest for more effective waste management approaches, cleaner environment and sustainability in construction materials usage makes it imperative that the utilization of other types of wastes be explored. This paper reports the results of a research aimed at studying the effects of copper tailings, on acid and chloride resistance of 0.65 water-to-binder ratio concretes. Concrete mixtures were prepared with different percentages of copper tailings ranging from 0 to 15% as a cement replacement material. It was observed that despite the high ASTM C 1202 rapid chloride permeability test values of mixtures containing copper tailings, higher resistance to dilute acid solution and chloride penetrations were obtained. Overall, it seems that the use of copper tailings as a cement replacement material in mixtures has a strong potential for the enhancement of concrete durability.

Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00