Beneficial use of marine dredged materials as a fine aggregate in ready-mixed concrete: Turkey example
Oluşturanlar
- 1. TUBITAK Marmara Res Ctr, Environm & Cleaner Prod Inst, TR-41470 Gebze, Kocaeli, Turkey
- 2. Yildiz Tech Univ, Fac Arts & Sci, Dept Chem, TR-34220 Istanbul, Turkey
Açıklama
This study describes the potential beneficial use of untreated and treated marine dredged material (DM) in ready-mix concrete (RMC) as a fine aggregate. DMs collected from four Turkish ports/harbours were characterized, assessed according to the National Legislation and transformed into one composite DM. Silica sand was replaced with untreated- and treated-composite-DM (COMP-U/COMP-T) at five ratios (0%, 25%, 50%, 75%, 100%), respectively. Mechanical, durability, leaching, mineralogical/micro-structural properties of DM-based-RMCs were analysed. Concretes having 50% COMP-U and 100% COMP-T met the minimum requirement for C25/30 class RMC. Marine DM can be beneficially used in RMC production; however, DM pre-treatment should be applied. (C) 2016 Elsevier Ltd. All rights reserved.
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