Desiccation Cracking Behavior of Geofiber-Reinforced Expansive Clay

Uma Chaduvula, B. V S Viswanadham, Jayantha Kodikara

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The objective of the present study is to evaluate the effect of geofibers in restraining desiccation cracking of expansive clay, through controlled laboratory tests. In the study, the soil was reinforced with polyester fibers of lengths 15 mm, 30 mm, and 50 mm, at fiber contents of 0.25%, 0.5%, and 0.75%, by dry weight. Saturated soil specimens were allowed to dry at a constant temperature and relative humidity. The loss of moisture, crack initiation, crack propagation, crack morphology, and surficial crack measurements were studied. Digital image analysis was employed to measure the surficial cracks. The results indicate that the desiccation cracking of soil is significantly restrained by geofiber reinforcement due to the bridging effect. The crack area increased with an increase in the length of the fibers. The surficial crack formation of the soil is reduced by 66% when reinforced with 15 mm fibers at a fiber content of 0.5%.

Original languageEnglish
Title of host publicationGeo-Chicago 2016: Sustainable Geoenvironmental Systems
Subtitle of host publicationSelected papers from sessions of Geo-Chicago 2016, August 14–18, 2016, Chicago, Illinois
EditorsAnirban De, Krishna R. Reddy, Nazli Yesiller, Dimitrios Zekkos, Arvin Farid
Place of PublicationReston, Virginia
PublisherAmerican Society of Civil Engineers
Number of pages10
ISBN (Electronic)9780784480144
Publication statusPublished - 2016
EventGeo-Chicago 2016 - Sheraton Chicago Hotel & Towers, Chicago, United States of America
Duration: 14 Aug 201618 Aug 2016 (Proceedings)

Publication series

NameGeotechnical Special Publications
PublisherAmerican Society of Civil Engineers
ISSN (Print)0895-0563


ConferenceGeo-Chicago 2016
CountryUnited States of America
Internet address

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