Open AccessEffects of Carbon Fiber & Sika Fiber on Improving the Geotechnical Properties of Clayey Soil
Author(s) -
Rusul Sh. Hammodi,
Balqees A. Ahmed
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1105/1/012106
Subject(s) - clay soil , fiber , geotechnical engineering , materials science , bearing capacity , shear strength (soil) , composite material , soil water , environmental science , soil science , geology
The effects of carbon & sika fibers on the Undrained unconsolidated strength (UUS) of weak clay soil have been studied in this research. The soil sample obtained from Al Basra city south of that can be classified according to USCS as weak silty clay of low plasticity (CL). The additives are carbon & sika fibers. The soil samples were improved by mixing with four ratios of each additive 0.5, 1, 1.5 and 2% of the dry soil weight. Mixture samples prepared using the optimum water content. Bearing capacity of samples measured by the unconsolidation undrained tri-axial shear test. Based on the results of tests at failure, the undrained unconsolidated strength (UUS) increased with increasing the ratio of additives, except in the case of sika fiber, which gave negative effects. In addition, it is important to avoid using carbon fiber in a high ratio of upper than 1% of dry soil weight due to a decrease in the (UUS).