Evaluating the Effect of Heating Cooling Cycle on the Clay-Concrete Pile Interface
Document Type
Conference Proceeding
Publication Date
1-1-2022
Abstract
This study investigated the effect of applying a one heating-cooling cycle on the interface strength parameters of saturated clay soil-concrete, and the potential use of heating to improve the pile capacity. A large direct shear test device with inner dimensions of 300 mm, 300 mm, and 200 mm for width, length, and height, respectively, was modified to perform the soil-concrete interface tests. The experimental tests were conducted on low-plasticity soil with PI = 12, medium-plasticity soil with PI = 29, and high-plasticity soil with PI = 60. Two specimens at different testing temperatures (~20°C and 70°C) were tested for each normal stress and clay type under different normal stresses ranging from 30 to 150 kPa. The specimens' temperature was increased gradually during the heating process from room temperature (~20°C) to ~70°C. The specimens were then cooled back to room temperature. The test results showed significant increase in both the peak and at large displacement interface friction angles by a percent ranges from 13.6% to 35.5%.
Publication Source (Journal or Book title)
Geotechnical Special Publication
First Page
50
Last Page
58
Recommended Citation
Abu-Farsakh, M., Idries, A., & Chen, S. (2022). Evaluating the Effect of Heating Cooling Cycle on the Clay-Concrete Pile Interface. Geotechnical Special Publication, 2022-March (GSP 332), 50-58. https://doi.org/10.1061/9780784484029.005