Impact of C3A Content on the Chloride Diffusivity of Concrete

Author(s): Vu Q. H., Pham G., Chonier A., Bauland A., Pommier G. and Moro F
Paper category: Proceedings
Book title: Proceedings of International Conferences (ICACMS) Advances in Construction Materials and systems Vol 2
Editor(s): Manu Santhanam, Ravindra Gettu, Radhakrishna G. Pillai, Sunitha K. Nayar
ISBN: 978-2-35158-194-0
e-ISBN: 978-2-35158-191-9
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 402-407
Total Pages: 6
Language : English

Abstract: The tri-calcium aluminate (C3A) content in cement has been known to impact significantly on the chloride binding capacity of concrete. However, little has been done on how this impact would affect the chloride diffusivity of concrete measured with a migration test. Some data collected from the literature and from LCR internal research projects have shown that concretes with low C3A content cement have systematically higher chloride diffusivity than those with high C3A content cement. In adding pure synthesized cubic C3A into ordinary Portland cement (OPC) at 5% by mass, it was found that the chloride diffusivity of concrete can be significantly reduced for low water to binders ratio (W/B=0.4). For high water to binders ratio (W/B=0.66), the impact is lesser.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00