UTILIZATION OF QUARTZ QUARRY DUST IN ENGINEERED CEMENTITIOUS COMPOSITES PRODUCTION

Author(s): Olkan İlter Taş(1), Süleyman Bahadır Keskin (1), Özlem Kasap Keskin (1), Mustafa Şahmaran (2)
Paper category: Proceedings
Book title: SynerCrete’18 International Conference on Interdisciplinary Approaches for Cement-based Materials and Structural Concrete
Editor(s): Miguel Azenha, Dirk Schlicke, Farid Benboudjema, Agnieszka Jędrzejewska
ISBN: 978-2-35158-202-2
e-ISBN: 978-2-35158-203-9
Publisher: RILEM Publications SARL
Publication year: 2018
Pages: 1139-1144
Total Pages: 6
Language : English

Abstract: Engineered Cementitious Composites (ECC) is a type of high performance fiber reinforced cementitious composites characterized by tight micro cracking under mechanical loading, high ductility, hence high durability. Moreover, ECC has been shown to exhibit intrinsic self-healing behaviour. ECC design requires the use of abundant supplementary binding materials especially fly ash together with Portland cement. As aggregate, only micron sized quartz sand is used in order to provide homogeneity and restrict the matrix fracture toughness. Polyvinyl alcohol type synthetic fibers, high range water reducing admixtures and water are the other ingredients of ECC. Tight micro cracks together with abundant binding materials bring about
intrinsic self-healing as an important feature for ECC. In this study, a successful ECC mixture is produced with local available fly ash and quartz sand; mechanical and self-healing properties of this mixture are determined. In addition to this control mixture, another ECC mixture is also produced by using quartz quarry dust, which is a waste of a local quartz quarry, as aggregate. The effect of using quartz quarry dust as aggregate for ECC on mechanical and self-healing properties are investigated by comparing with the properties of control mixture.

Online publication : 2018
Publication type : full_text
Public price (Euros) : 0.00