Sustainable controlled low strength material from waste materials for infrastructure applications: State-of-the-art

In recent years, controlled low strength material (CLSM) has been utilized as an alternate backfill material for various infrastructure applications such as filling of voids, construction of pavement bases, trench backfilling, bed for pipelines, etc. Efforts have been made by researchers to utilize...

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Bibliographic Details
Published in:Journal of environmental management 2023-09, Vol.342, p.118284-118284, Article 118284
Main Authors: H. Dalal, Parishi, Patil, Mahi, K.R Iyer, Kannan, N. Dave, Trudeep
Format: Article
Language:English
Subjects:
Alternate backfill
Controlled low strength material
Infrastructure applications
Reutilization of waste
Sustainable
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Summary:In recent years, controlled low strength material (CLSM) has been utilized as an alternate backfill material for various infrastructure applications such as filling of voids, construction of pavement bases, trench backfilling, bed for pipelines, etc. Efforts have been made by researchers to utilize various waste materials/industrial by-products such as slag, fly ash, pond ash, cement kiln dust, red mud, sludge, construction and demolition waste and crumb rubber for development of sustainable CLSM. The present work discusses in details the evolution of CLSM, recent advances in the development of CLSM with different waste materials/industrial by-products, and the effect of these sustainable materials on flowability, strength, hardening time and other properties of CLSM. Further, the benefits/challenges and applications of different sustainable CLSM mixes have been compared. The inferences from pilot/field scale studies for CLSM and alkali activated CLSM have been discussed, and assessment of the sustainability coefficient of select CLSM combinations considered from the literature have been performed. The study quantifies the sustainability of different CLSM mixes, and presents the challenges that needs to be addressed in future to increase the utilization of sustainable CLSM for future infrastructure development. •The study presents the effect of waste materials/industrial residue on properties of controlled low strength material.•Controlled low strength material of desired properties can be developed with waste materials/industrial residue.•Some waste materials may require pre-treatment prior to their utilization.•Sustainability coefficient is evaluated for controlled low strength material.•Sustainable CLSM is eco-friendly and cost effective for utilization in infrastructure development.
ISSN:0301-4797
1095-8630
DOI:10.1016/j.jenvman.2023.118284