Compaction, Hydraulic, and Consolidation Characteristics of Reinforced Clays with Carpet Waste | ||
| مهندسی زیر ساخت های حمل و نقل | ||
| Volume 9, Issue 1 - Serial Number 33, May 2023, Pages 107-118 PDF (1.77 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.22075/jtie.2023.30268.1638 | ||
| Authors | ||
| Sadegh Ghavami* 1; Mehrshad Hosseini Fani2 | ||
| 1Faculty of Civil Engineering, Sahand University of Technology, Tabriz, Iran | ||
| 2Ph.D. Candidate, Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran | ||
| Receive Date: 26 March 2023, Revise Date: 25 April 2023, Accept Date: 12 May 2023 | ||
| Abstract | ||
| Due to the importance of environmental issues and reducing energy consumption, the use of waste materials to improve the engineering properties of soils has been widely noticed by researchers in recent years. This research investigates the effect of carpet waste fibers on the compaction, hydraulic, and consolidation properties of kaolinite clay. Standard compaction, falling head permeability, and one-dimensional consolidation tests were performed on soil samples containing 0.5, 1, and 2 percent of fibers (relative to the dry weight of the soil). In order to investigate the effect of the fiber length on the results, the length of the fibers was changed from 6 to 30 mm. The results showed that the presence of carpet waste fibers decreases the maximum dry density and increases the optimal moisture content of the samples. Also, the carpet fibers increased the hydraulic conductivity of the samples and reduced the settlement of clay soil and its swelling index. So that the compression index and swelling index for the sample with 2% fibers with a length of 30 mm decreased by 35 and 64%, respectively. The presence of carpet fibers in the soil increases the speed of clay consolidation. From the obtained results, it was found that the changes in the consolidation properties of clay are more significant with the content of fibers compared to the length of the fibers. | ||
| Keywords | ||
| Reinforced Soil; Carpet Waste Fibers; Compaction Parameters; Consolidation; Hydraulic Conductivity | ||
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