TY - JOUR
T1 - Effects of electrokinetic phenomena on the load-bearing capacity of different steel and concrete piles : a small-scale experimental study
AU - Sadeghian, Fatemeh
AU - Haddad, Abdolhosein
AU - Jahandari, Soheil
AU - Rasekh, Haleh
AU - Ozbakkaloglu, Togay
PY - 2021
Y1 - 2021
N2 - To date, the electrokinetic (EK) method has only been used to increase the bearing capacity of steel piles. This study analysed the impact of EK on the bearing capacity of reinforced cement concrete piles (RCCP), reinforced lime-cement concrete piles (RLCCP), and steel piles located in kaolin clay. The performance of four different cathodes was also evaluated, and the iron electrode was found to be the most effective cathode for use in the EK process. Unlike RLCCP, the bearing capacity of 7 day cured RCCP with 5 day EK decreased due to corrosion in the pile body. However, the addition of lime to RCCP significantly increased the pile bearing capacity by 57.8% with 8 day EK and prevented damage and corrosion in the pile body. It is concluded that EK can effectively increase the bearing capacity of both metallic and even concrete piles.
AB - To date, the electrokinetic (EK) method has only been used to increase the bearing capacity of steel piles. This study analysed the impact of EK on the bearing capacity of reinforced cement concrete piles (RCCP), reinforced lime-cement concrete piles (RLCCP), and steel piles located in kaolin clay. The performance of four different cathodes was also evaluated, and the iron electrode was found to be the most effective cathode for use in the EK process. Unlike RLCCP, the bearing capacity of 7 day cured RCCP with 5 day EK decreased due to corrosion in the pile body. However, the addition of lime to RCCP significantly increased the pile bearing capacity by 57.8% with 8 day EK and prevented damage and corrosion in the pile body. It is concluded that EK can effectively increase the bearing capacity of both metallic and even concrete piles.
UR - https://hdl.handle.net/1959.7/uws:60856
U2 - 10.1139/cgj-2019-0650
DO - 10.1139/cgj-2019-0650
M3 - Article
SN - 0008-3674
VL - 58
SP - 741
EP - 746
JO - Canadian Geotechnical Journal
JF - Canadian Geotechnical Journal
IS - 5
ER -