Effect of Natural Zeolite-Pozzolan on Compressive Strength of Oil-Polluted Concrete Marine Structures
Abstract: Oil pollution into
the concrete composed materials, leads to decrease the compressive strength of
the constructed structure. In the present study, effect of using a natural
pozzolan named Zeolite on concrete structures was tested in different marine
conditions. A fixed amount of oil equal to 2% of sand weight was added as the
pollution into the concrete composed materials. Natural Zeolite was added into
the concrete instead of cement to the mix design with weight percentages of 10,
15 and 20. After preparing and curing, concrete specimens were placed into the
three different conditions: fresh water, tidal, and sea water environments.
Results of compressive strength tests showed that replacement of natural
Zeolite instead of cement significantly increased compressive strength in
comparison with control specimens, in all environments. Adding 20% natural
Zeolite increased the compressive strength to its highest values about 60-85%
higher than control specimens.
Keywords: Compressive
Strength; Tidal and Sea Water Environments; Oil Polluted Sand; Natural Zeolite;
Marine Concrete
Author: Hamid Shahrabadi, Sina
Sayareh, Hamed Sarkardeh
Journal Code: jptsipilgg160067
