Chloride diffusion resistance of limestone calcined clay cement (LC3) concrete

Author(s): Quang Dieu Nguyen, Mohammad Khan, Arnaud Castel
Paper category: Proceedings
Book title: SynerCrete’18: Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time Vol. 1 & 2
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: 129-134
Total Pages: 6
Language : English

Abstract: This paper aims to evaluate the chloride diffusion resistance of limestone calcined clay cement (LC3) concrete by accelerated chloride migration and bulk chloride diffusion techniques. Three concrete mixes have been utilized: one mix using only General Purpose (GP) cement and two LC3 concretes with 15% and 20% GP cement replaced by a constant ratio 2:1 by mass of calcined clay and limestone. The mechanical and transport properties of three concretes were investigated. LC3 concrete with 15% substitution presented the higher compressive strength than reference concrete. Moreover, LC3 concretes showed the better performance in surface resistivity comparing with plain GP concrete. Rapid chloride penetration test (RCPT), chloride migration test and bulk diffusion tests were conducted. LC3 concretes containing 15% or 20% substitution of calcined clay and limestone increased significantly the chloride diffusion resistance comparing with the reference concrete in all diffusion tests.

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