Study On The Use Of Facemask Fibers For Soil Reinforcement

Chaves Camargo, Javier Alejandro

Study On The Use Of Facemask Fibers For Soil Reinforcement

dc.contributor.advisor	Hatami, Kianoosh
dc.contributor.author	Chaves Camargo, Javier Alejandro
dc.contributor.committeeMember	Cerato, Amy
dc.contributor.committeeMember	Miller, Gerald
dc.date.accessioned	2024-01-03T15:02:25Z
dc.date.available	2024-01-03T15:02:25Z
dc.date.issued	2023-12-15
dc.date.manuscript	2023-12-08
dc.description.abstract	This study investigated the potential application of facemask materials as a sustainable solution for soil reinforcement, with a focus on assessing the influence of facemask fiber attributes on the geotechnical properties of Fiber-Reinforced Soils (FRS). After conducting interface shear tests and tensile strength tests on facemask materials, CUIC triaxial tests were performed on a raw soil and corresponding FRS specimens, incorporating various facemask fiber configurations and geotextile materials for comparison purposes. Results of study indicate that the inclusion of facemask fibers can indeed influence the magnitudes of FRS cohesion and friction angle relative to raw soil values, leading to an increase in the soil shear strength. Specimens with 2.5 x 51 mm-long fibers at a concentration of 1.2 kg/m3 led to the greatest strength increase measured in this study, with a total shear strength increase of 39.7%. This performance was followed by that of 5.1 mm-wide and 51 mm-long fibers at 0.8 kg/m3, resulting in a 31.3% improvement in shear strength. Proper addition of facemask fibers with even spread and random orientation in the soil consistently led to increased shear strength in FRS specimens. This increase was evident not only in the overall toughness of the specimens but also in the effective friction angle, showing an improvement of up to 18%. However, it was observed that effective cohesion remained practically unchanged or, in some cases, decreased by as much as 82%. Additionally, the findings indicate that thinner fibers tend to be more effective in the reinforcement process, and the optimal concentration of facemask fibers is closely associated with their aspect ratio.	en_US
dc.identifier.uri	https://hdl.handle.net/11244/340085
dc.language	en_US	en_US
dc.subject	Fiber Reinforced Soils	en_US
dc.subject	Facemask Material Applications	en_US
dc.subject	Engineering, Civil.	en_US
dc.thesis.degree	Master of Science	en_US
dc.title	Study On The Use Of Facemask Fibers For Soil Reinforcement	en_US
ou.group	Gallogly College of Engineering::School of Civil Engineering and Environmental Science	en_US