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Contribution to Book
Effect of Fiber Reinforcement on the Hydraulic Conductivity Behavior of Lime-Treated Expansive Soil—Reliability-Based Optimization Perspective
Geo-China 2016: Innovative and Sustainable Use of Geomaterials and Geosystems
  • Arif Ali Baig Moghal, King Saud University
  • B. Munwar Basha, Indian Institute of Technology Hyderabad
  • Bhaskar Chittoori, Boise State University
  • Mosleh Ali Al-Shamrani, King Saud University
Document Type
Conference Proceeding
Publication Date
1-1-2016
Disciplines
Abstract
Expansive soils which create heave and shrinkage related distresses are considered to be extremely problematic globally. When these soils are used alone or in conjunction with fiber-reinforcement as hydraulic barriers in waste containment systems, their prime purpose is to impede flow. Polypropylene fiber materials are durable and sustain improvement in soil properties in the long run. In order to have intact bonding between the randomly mixed fiber and clay, an additive in the form of lime is considered. In this study, the combined effect of lime and randomly oriented polypropylene fiber inclusion on the hydraulic conductivity behavior of an expansive soil is evaluated. The dosage of lime was fixed at 6% resorting to soil – pH response. The effect of fiber type (Fibercast and Fibermesh), fiber dosage (0.2, 0.4, and 0.6% by weight of soil) and fiber length (6 mm and 12 mm) on the hydraulic conductivity behavior was studied. Statistical analysis was performed to correlate the hydraulic conductivity of treated expansive soil with dosage and length of randomly oriented polypropylene fibers. Two exponential best fit equations are proposed for estimating the hydraulic conductivity of treated expansive soils in terms of dosage and length of two types of polypropylene fibers. Further, reliability analysis was performed to examine the suitability of treated expansive soils for waste containment in Municipal Solid Waste (MSW) landfills.
Citation Information
Arif Ali Baig Moghal, B. Munwar Basha, Bhaskar Chittoori and Mosleh Ali Al-Shamrani. "Effect of Fiber Reinforcement on the Hydraulic Conductivity Behavior of Lime-Treated Expansive Soil—Reliability-Based Optimization Perspective" Geo-China 2016: Innovative and Sustainable Use of Geomaterials and Geosystems (2016)
Available at: http://works.bepress.com/bhaskar_chittoori/42/