Chloride diffusion study in self-compacting concrete made with Portland pozzolana cement

Author(s): Prof. Bulu Pradhan, Smrati Jain and Lalrosiama Zote
Paper category: Proceeding
Book title: International Conference on Advances in Civil Engineering and Sustainable Construction
Editor(s): T.Ch. Madhavi, G. Prabhakar, Santhosh Ram, and P.M. Rameshwaran
Print-ISBN: None
e-ISBN: 978-2-35158-161-2
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 47-51
Total Pages : 5
Language : English

Abstract: The present study evaluates the resistance of selfcompacting concrete (SCC) against ingress of external chloride ions. The SCC mix was made with Portland pozzolana cement (PPC) at different w/c ratios of 0.37, 0.40 and 0.43. The compressive strength and ultrasonic pulse velocity (USPV) tests were conducted on SCC cube specimens at the curing ages of 28 and 56 days. Further for chloride ingress test, SCC cube specimens were exposed to external sodium chloride solutions with alternate wetting-drying cycles for a period of 180 days. The concentrations of NaCl in solutions were 1%, 3%, 5% and 7%. From the results it is observed that, USPV and compressive strength values of all SCC mixes increased with decrease in w/c ratios and with increase in curing age. The chloride diffusion coefficient increased with increase in concentration of NaCl in exposure solution for all SCC mixes at different w/c ratios and there was decrease in chloride diffusion coefficient with decrease in w/c ratio.

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