Open AccessChloride Migration in Graphene Oxide Concrete
Author(s) -
Boksun Kim,
AUTHOR_ID
Publication year - 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.26799/cp-surfcoat-graphene-korea-2021/7
Subject(s) - materials science , chloride , composite material , oxide , cementitious , cement , graphene , penetration (warfare) , metallurgy , nanotechnology , engineering , operations research
This paper presents experimental work on the chloride penetration resistance of concrete, incorporating 0%, 2% and 3% Graphene Oxide (GO) by weight of cement. Nine 100mm diameter and 200mm high concrete cylinders were cast in the Materials Laboratory at the University of Plymouth. The cylinders were cut into 50mm thick disks and rapid chloride migration tests were carried out. After the tests, the penetration depth of the disks were measured and chloride migration coefficients were determined. It was found that compared with the control samples, the addition of 2% and 3% GO reduced the migration coefficient of concrete by about 11% and 17% respectively at 28 days after casting. This suggests that the inclusion of GO into a cementitious mix does have a noticeable effect on the increase of chloride resistance and hence the longevity of concrete.