The development of alternatives to soil stabilization through mechanical and chemical has paved the way for biostabilization methods. Since its development, researchers have used different bacteria species treatment. Soil treatment bioremediation techniques been understand effect on strength parameters contaminant remediation. Using a living organism binding grains make mass dense durable is basic idea biotreatment. Bacteria enzymes are commonly utilized in biostabilization, which common...

Sustainable engineering discourages the use of conventional soil stabilizers such as lime and cement owing to their higher carbon emission rates. To address these challenges, many researchers considered biopolymer stabilization, a promising green technique in geotechnical practice for treating expansive soils. This study evaluated performance two biopolymers, xanthan gum (XG) guar (GG), improving unconfined compressive strength (UCS) consolidation characteristics an subjected different...

The utilization of industrial by-products as stabilizers is gaining attention from the sustainability perspective. Along these lines, granite sand (GS) and calcium lignosulfonate (CLS) are used alternatives to traditional for cohesive soil (clay). unsoaked California Bearing Ratio (CBR) was taken a performance indicator (as subgrade material low-volume roads). A series tests were performed by varying dosages GS (30%, 40%, 50%) CLS (0.5%, 1%, 1.5%, 2%) different curing periods (0, 7, 28...

Kuttanad region in Kerala, India, is a place that predominantly consists of soft soil formations with low shear strength and water resistance rendering them problematic for construction purposes. Pavements constructed on such deposits have been subjected to structural rutting the high erodibility in-situ necessitates need use suitable ground improvement techniques. The present environmental scenario demands implementation sustainable techniques rejuvenation effective stabilizers enhancing...

Abstract It has been imperative to study and stabilize cohesive soils for use in the construction of pavement subgrade compacted landfill liners considering their unconfined compressive strength (UCS). As long as natural soil falls below 200 kN/m 2 strength, there is a structural necessity improve its mechanical property be suitable intended purposes. Subgrades landfills are important environmental geotechnics structures needing attention engineering services due role protecting environment...

The strength of fly ash mixture often needs to be enhanced for its better utilization in geotechnical and environmental applications. Many ashes improve their with lime but may not meet the requirements. Gypsum, which reduces leachability, further improves strength. An attempt is made this paper study effect gypsum on development two Class F different contents after curing them periods. sustainability improved has been examined soaking cured specimens water leachates containing heavy-metal...

The use of synthetic fibres as reinforcement to stabilise expansive soils is gaining momentum. As a contribution towards this growing field research two different types fibres, Fiber Mesh® and Cast®, were evaluated stabilisation alternative for in the presence lime. California bearing ratio (CBR) chosen performance indicator it good pointer pavement effectiveness. Variables such length amount well curing period studied. Both deterministic probabilistic (or reliability) analyses presented...

Thermal power stations in most countries are burdened with the problem of fly ash disposal, and unless suitable uses found for ash, it will pose a gigantic sector. The disposal huge quantities without proper care significantly impacts environment, particularly by creating soil groundwater contamination. However, is essential to note that ashes have many desirable properties can find application civil engineering general geotechnical particular. This article reviews literature dealing...

Soil treatment methods to cope with ever-growing demands of construction industry and environmental aspects are always explored for their suitability in different in-situ conditions. Of late, enzyme induced calcite precipitation (EICP) is gaining importance as a reliable technique improve soil properties contaminant remediation scenarios. In the present work, swelling permeability characteristics two native Indian cohesive soils (Black Red) explored. Experiments on sorption desorption...

This study evaluated the efficacy of enzyme induced calcite precipitation (EICP) in restricting mobility heavy metals soils. EICP is an environmentally friendly method that has wide ranging applications sustainable development civil infrastructure. The examined desorption three from treated and untreated soils using ethylene diamine tetra-acetic acid (EDTA) citric (C6H8O7) extractants under harsh conditions. Two natural spiked with cadmium (Cd), nickel (Ni), lead (Pb) were studied this...

Traditional soil stabilization techniques, such as cement and lime, are known for their menacing effect on the environment through heavy carbon emissions. Sustainable methods grabbing attention, utilization of biopolymers is surely one among them. Recent studies proved efficiency in enhancing geotechnical properties to meet requirements construction industry. The suitability biopolymer application different soils still unexplored, footprint analysis (CFA) crucial promoting a promising...

Kuttanad is a region that lies in the southwest part of Kerala, India, and possesses soft soil, which imposes constraints on many civil engineering applications owing to low shear strength high compressibility. Chemical stabilizers such as cement lime have been extensively utilized past address compressibility issues. However, future civilizations will be extremely dependent development sustainable materials practices use bio-enzymes, calcite precipitation methods, biological result...

The current study investigated the efficacy of a protein-based biopolymer called casein for modification primary and secondary compressibility characteristics ability to resist sustained moisture attack in organic soils. dry mixing method was adopted tests with dosages 0.5%, 1%, 2%, 4% added as percentage weight soil. Incremental consolidation indicated that reduced inclusion casein, leading lower void ratios an increase pressure concentration. compression index (Cc) (Cα) were by 85% 67%,...

Enzyme-induced calcite precipitation (EICP) emerges as a highly effective and well-established technique within bio-cementation approaches, offering notable advantages over traditional methods. Conversely, lime, known for its accessibility, cost-effectiveness, efficacy, serves valuable material in enhancing the engineering properties of problematic soils. This study explores application EICP lime treatments separately on two distinct soils (low-plastic high-plastic soil) exhibiting different...

This paper evaluates the effectiveness of stabilizing expansive soil with two different types fibers, fiber mesh (FM) and cast (FC), in conjunction chemical stabilization. The intention this study is to evaluate effect these fibers lime by improving its unconfined compressive strength (UCS) behavior. varying lengths (6 12 mm) amounts (0.2, 0.4, 0.6% dosage weight soil) FC FM curing periods (0, 7, 28, 60, 120, 180, 360 days) on UCS secant modulus a semiarid soil, presence lime, was...

Among coal mining-related wastes, gangue (CG) is the heterogeneous waste generated during mineral processing or washing phase of mining. A thorough understanding environmental concerns associated with current model CG utilization and potential future application gaining paramount importance. Though previous review articles on have presented CG, an appraisal factors affecting its mechanical properties feasibility as a geotechnical material has not been taken into consideration. An attempt...

Soil is a composite material of great interest to civil engineers. When the quality such soils poor, ground improvement techniques must be adopted withstand design load superstructure. Existing soil stabilizers include lime and cement; however, their environmental safety sustainable use during stabilization have been receiving increasing attention in recent years. This study investigated granite sand (GS) calcium lignosulphonate (CLS) as that could blended with clayey soils. The considered...

In this work, intelligent numerical models for the prediction of debris flow susceptibility using slope stability failure factor safety (FOS) machine learning predictions have been developed. These techniques were trained novel metaheuristic methods. The application these training mechanisms was necessitated by need to enhance robustness and performance three main It necessary develop FOS down a with measured geometry due sophisticated equipment required regular field studies on slopes prone...