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Experimental Study on Strength Behavior of Clayey Soil Reinforced with Glass Fiber

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Finding Solutions of the 21st Century Transportation Problems Through Research and Innovations (GeoChina 2021)

Part of the book series: Sustainable Civil Infrastructures ((SUCI))

Abstract

This study demonstrates the strength characteristics of a clayey soil reinforced with randomly distributed glass fibers by means of unconfined compression (UC) and California bearing ratio (CBR) tests for its application as a subgrade material for flexible road pavement. A low plastic clayey soil (CL) was mixed with 20 mm glass fibers in different proportions up to 1% by dry weight of soil. The test results show that the UCS and soaked CBR values of the clayey soil improve markedly with glass fiber inclusion along with modulus and energy absorption capability (EAC). Inclusion of glass fiber significantly reduces brittle behavior of the clayey soil by increasing the failure axial strain and decreasing post-peak strength loss, and this can be noted from the specimen failure mode. The UCS, CBR and subgrade modulus values are noted to increase with fiber content and reach their optimum values at 0.75% fiber content. The soil ductility increases continuously with fiber content. Increasing EAC indicates that the reinforced soil needs higher energy for its deformation, and has better bearing capacity. The glass fiber is found to be a good reinforcing material with the clayey soil for its application as subgrade material of low-volume flexible road pavement.

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Authors and Affiliations

  1. Department of Transport Science and Technology, Central University of Jharkhand, Ranchi, 835205, India

    Suchit Kumar Patel

  2. Department of Civil Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India

    Baleshwar Singh

Authors
  1. Suchit Kumar Patel
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  2. Baleshwar Singh
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Corresponding author

Correspondence to Suchit Kumar Patel .

Editor information

Editors and Affiliations

  1. Civil Engineering, Arkansas State University, Jonesboro, AR, USA

    Zahid Hossain

  2. Civil Engineeeing, University of Oklahoma, Norman, OK, USA

    Musharraf Zaman

  3. School Highway, Chang’an University, Xian, China

    Jiupeng Zhang

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Patel, S.K., Singh, B. (2021). Experimental Study on Strength Behavior of Clayey Soil Reinforced with Glass Fiber. In: Hossain, Z., Zaman, M., Zhang, J. (eds) Finding Solutions of the 21st Century Transportation Problems Through Research and Innovations. GeoChina 2021. Sustainable Civil Infrastructures. Springer, Cham. https://doi.org/10.1007/978-3-030-79638-9_1

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