Sustainable materials used as stone column filler: A short review

Zukri, Azhani; Назир, Рамли

doi:10.1088/1757-899x/342/1/012001

Cited by 22 publications

(13 citation statements)

References 15 publications

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“…However, these findings for granular materials may not necessarily correspond to CWG. Despite huge potential, no formal study has been found exploring the use of CWG as backfill in stone column construction (Zukri & Nazir, 2018). Therefore, in continuation to this research and for the first time, a separate study will be presented in future to examine the geotechnical behaviour of CWG as a next-generation alternative to traditional sands for use as a column backfill in granular pile construction.…”

Section: Discussionmentioning

confidence: 99%

The potential use of crushed waste glass as a sustainable alternative to natural and manufactured sand in geotechnical applications

Kazmi

Serati

Williams

et al. 2021

Journal of Cleaner Production

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Section: Discussionmentioning

confidence: 99%

The potential use of crushed waste glass as a sustainable alternative to natural and manufactured sand in geotechnical applications

Kazmi

Serati

Williams

et al. 2021

Journal of Cleaner Production

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“…Bulging is the main reason that influence the failure in stone column. Generally it is happens within the top portion of 2 to 3 times the diameter of column [7]. However, study conducted by Pitt et al (2003) and Murugesan and Rajagopal (2006) through numerical and experimental methods indicated that even bulging can occur in shallower depth less than 2 to 3D [8,9].…”

Section: Bulging Failure In Leca Columnsmentioning

confidence: 99%

“…Previous study shows that the LECA has been used as filler material for road embankment construction and filling behind retaining wall, airport pavement subgrades, planting and storm water drainage system [6]. However no researchers have been made to explore the effectiveness of stone columns using Lightweight Expanded Clay Aggregate (LECA) as filler material [7]. This paper will discuss on the effectiveness of using LECA materials as a replacement of a normal aggregates as a filler for stone column construction.…”

Section: Introductionmentioning

confidence: 99%

Settlement Prediction of a Group of Lightweight Aggregate (LECA) Columns Using Finite Element Modelling

Zukri¹,

Назир²,

Ng³

2018

IJET

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The method of reinforcing the soft clays with stone columns is the most commonly adopted technique to enhance its load carrying capacity and to reduce settlements. Their performance with respect to bearing capacity is well researched, but the understanding of settlement characteristics still requires extensive investigations. Moreover, no studies have been made to explore the effectiveness of stone columns using Lightweight Expanded Clay Aggregate (LECA) as filler material replacing normal stone/aggregates in order to improve settlement behavior of soft clay. LECA is known as a common lightweight material that have been applied successfully in civil engineering works where weight is an issue because the materials can help to reduce dead loads and lateral forces by more than half in installations over structures and those with soft soils. The purpose of this work is to assess the suitability of reinforcing technique by LECA columns to improve the settlement through finite element. The analysis of performance of LECA column in soft soil improvement was conducted through finite elements methods by using Plaxis 3D commercial software. Based on the results the settlement ratio was reduced as the column length increased until unity at end bearing condition where β=1.0. It is also observed that bulging was reduced with closer spacing between LECA columns.

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“…LECA consists of small, lightweight, bloated particles of burnt clay. Sonia and Subashini [4] claims that the thousands of small, air-filled cavities give LECA its strength and thermal insulation properties meanwhile, Zukri and Nazir [5] explain that lightweight aggregates exhibit considerable differences in particle shape, texture and properties, depending on the source and its method of production [4,5].…”

Section: Introductionmentioning

confidence: 99%

Settlement Analysis of Treated Soft Clay using LECA Replacement through Numerical Modelling

Zukri

2021

construction

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Soil replacement technique is the simplest and oldest way in improving the soft soil under the shallow foundations. The process started by taking or removing the un-wanted problematic part of soils and replacing it with other efficient materials. Therefore, this study conducted to analyse on the soft soil replacement using Lightweight Expanded Clay Aggregate (LECA) as a filling material instead of common aggregate. LECA has been widely used in geotechnical application as the materials were successfully recognized in minimising the dead loads by more than half. The settlement magnitude of treated soft soil with LECA replacement was analysed through finite element method by using PLAXIS 2D commercial software. The prediction graph for various internal friction angle has been developed for settlement estimation The graph was then validated using developed Settlement Prediction Model, analytical equations, and numerical analysis. Another finding from this study is a decrease in the magnitude of the settlement as the internal friction angle of LECA increases.

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Sustainable materials used as stone column filler: A short review

Cited by 22 publications

References 15 publications

The potential use of crushed waste glass as a sustainable alternative to natural and manufactured sand in geotechnical applications

The potential use of crushed waste glass as a sustainable alternative to natural and manufactured sand in geotechnical applications

Settlement Prediction of a Group of Lightweight Aggregate (LECA) Columns Using Finite Element Modelling

Settlement Analysis of Treated Soft Clay using LECA Replacement through Numerical Modelling

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