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Influence of Lime and Fiber on Strength and Consolidation Characteristics of Expansive Soil

  • Monowar HussainEmail author
  • Subhradeep Dhar
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 29)

Abstract

This research article presents the strength and consolidation characteristics of expansive soils stabilized with lime and fiber. The initial phase of the experimental program includes the unconfined compressive strength (UCS) test of soil specimens prepared at three different percentages of lime (i.e., 3, 5, and 9% by dry weight of soil) and four different percentages of polypropylene (PP) fiber (i.e., 0.5, 1, 1.5, and 2% by dry weight of soil). From the test results, it is found that lime content, fiber content, and curing duration have significant influence on the compressive strength of lime-stabilized-fiber-reinforced soil. The maximum improvement of strength is found at 5% lime and 1.5% fiber. In the second phase, the effect of lime and fiber on consolidation behavior of expansive soil is evaluated. The consolidation tests are conducted at optimum lime (i.e. 5%) obtained from UCS test and with different percentages of PP fiber. It is observed that the addition of lime and fiber on expansive soil reduces the compression index (cc), coefficient of volume compressibility (mv), and increases coefficient of consolidation (cv). The improvement of these parameters reduces the excessive settlement, i.e., rutting, cracking, and unevenness in pavement. Therefore, lime-stabilized-fiber-reinforced expansive soil can be used as pavement material.

Keywords

Lime Fiber Expansive soil Strength Consolidation 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Department of Civil EngineeringNational Institute of TechnologySilcharIndia

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