Alkali-Activated Permeable Concretes with Agro-Industrial Wastes for a Sustainable Built Environment DOI Open Access
Shriram Marathe,

Martyna Nieświec,

B. Gronostajska

et al.

Materials, Journal Year: 2024, Volume and Issue: 18(1), P. 87 - 87

Published: Dec. 28, 2024

This research presents a proposal for alkali-activated permeable concrete composites with the use of industrial by-products, including ground granulated blast-furnace slag (GGBS) and waste-foundry sand, as well agro-desecrate product, i.e., sugarcane bagasse ash (SBA). GGBS SBA served binders, crushed granite coarse aggregate sand fine aggregate. The novelty this is in examining influence SBA, combination slag, on fresh- hardened-state properties proposed concretes. Experiments were conducted to optimize percentage based hydraulic conductivity compressive tensile strength after 28 days air curing. hardened density, compaction factor (workability), saturated water absorption also measured all mixes. Furthermore, control optimal mixes subjected evaluate microstructure analysis (EDX, XRD, FESEM) mix containing 100% 0% reference, 10% (with 90% GGBS) used comparative understand its effect composites. results showed positive or acceptable mechanical performance at ratio binders. study aims enhance understanding engineering behavior composites, facilitating rational design pavement systems through effective agro-industrial waste products, thereby conserving ecosystems while meeting requirements.

Language: Английский

Prediction of Electrical Resistivity of Concrete Containing Electric Arc Furnace Slag as Fine Aggregate Using Gene Expression Programming Method DOI Creative Commons
Babak Behforouz, Shaghayegh Esfahani, Davoud Tavakoli

et al.

Buildings, Journal Year: 2025, Volume and Issue: 15(5), P. 806 - 806

Published: March 2, 2025

In recent years, there has been a growing interest in developing sustainable concrete alternatives that reduce reliance on natural aggregates and promote waste recycling. One promising approach involves the utilization of electric arc furnace slag (EAFS) as fine aggregate replacement. This study aims to investigate impact EAFS mechanical properties, specifically compressive strength electrical resistivity, well durability concrete. Given importance accurately estimating performance domain, this explores application gene expression programming (GEP) predict resistivity containing EAFS. To achieve these objectives, series mixes were prepared with replacement levels ranging from 0% 100% at water-to-cement ratios 0.3, 0.4, 0.5. Experimental results indicated decrease increasing content, particularly higher ratios. Conversely, decreased significantly levels. enhance durability, it is recommended incorporate pozzolanic material alongside The GEP models developed exhibited excellent predicting high correlation coefficients obtained demonstrate model’s accuracy reliability. An accurate outcome achieved by model configured 45 chromosomes, head size 15, multiplicative linking function. strong between other such permeability corrosion resistance, can be valuable tool for optimizing mixtures long-term construction applications.

Language: Английский

Citations

0
Predictive Modelling of Pavement Quality Fibre-Reinforced Alkali-Activated Nano-Concrete Mixes through Artificial Intelligence DOI Creative Commons

S. Akhila,

Shriram Marathe, Anisha P Rodrigues

et al.

Studia Geotechnica et Mechanica, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

Abstract Alkali-activated concrete (AAC) has emerged as a viable sustainable alternative for the building of roads and rigid pavements, particularly in India, where infrastructure development is major priority. With exponential growth highway networks, there noteworthy emphasis on enhancing mechanical performance pavements to overcome their inherent brittleness limited load-carrying capacity. This research examines incorporation nano-silica (NS) nano-alumina (NA) improve properties pavement quality alkali-activated (PQAC). Additionally, polyvinyl alcohol fibres (PVAF) Polypropylene Fibre (PPF) were integrated into mix address brittle nature PQAC tensile strength concrete. Given challenges associated with optimising these material combinations, this also leverages advanced machine learning models, including Multilinear Regression (MLR), Decision Tree (DT), Random Forest (RF), AdaBoost, Support Vector (SVR), Gradient Boosting (GB), predict split (STS) PQAC. A thorough analysis predicted was carried out utilising assessment measures. The findings demonstrate that AdaBoost model outperforms other models terms test performance, achieving an R 2 value 0.79. surpasses values MLR (0.61), SVR (0.6), DT (0.79), GB (0.791) RF (0.796). remaining four error measures have lowest among all MSE = 0.202, RMSE 0.45, CV=0.714 MAE 0.38. study highlights superior ensemble accurately predicting STS, underscoring potential reliable tools compositions applications thereby supporting or partly replacing laboratory tension tests, saving time cost. contributes broader goal developing more durable mixes construction projects.

Language: Английский

Citations

0
Engineering of alkali-activated permeable pavement composites with agro-industrial wastes DOI Creative Commons
Shriram Marathe, D.L. Ma, Łukasz Sadowski

et al.

International Journal of Pavement Engineering, Journal Year: 2024, Volume and Issue: 25(1)

Published: Nov. 29, 2024

This study investigates the development of alkali-activated pervious concrete (PC) composites using industrial and agro-waste as primary constituents. The binder was activated with sodium silicate hydroxide at an activator modulus (Ms) 1.25, maintaining a oxide dosage 4.0% relative to total water-to-binder ratio 0.40. Slag bagasse ash were used binders, recycled coarse aggregates (from construction demolition waste) partially replaced crushed granite waste-foundry sand served fine aggregates. Mix proportions optimised for hydraulic conductivity compressive strength after 28 days air curing. Four selected mixes further evaluated porosity, splitting-tensile strength, static flexural fatigue performance. Optimal mechanical properties observed corresponding PC 10% 50% Statistical analyses fatigue, including S-N curves two-parameter Weibull distribution, conducted, along Kolmogorov-Smirnov analysis survival probabilities (95%, 5%). findings contribute understanding engineering behaviour PCs, supporting permeable pavement systems through effective utilisation agro-industrial wastes, thereby promoting sustainability environmental conservation.

Language: Английский

Citations

3
Agro-industrial waste utilization in air-cured alkali-activated pavement composites: Properties, micro-structural insights and life cycle impacts DOI Creative Commons
Shriram Marathe,

S. Akhila,

Łukasz Sadowski

et al.

Cleaner Materials, Journal Year: 2024, Volume and Issue: 14, P. 100281 - 100281

Published: Nov. 30, 2024

Language: Английский

Citations

3
Effect of bio-admixture on the properties of cement-slag based sustainable pervious concrete mixes for road infrastructure DOI Creative Commons
Nidhi Shree, Shriram Marathe, Łukasz Sadowski

et al.

Road Materials and Pavement Design, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 25

Published: Dec. 22, 2024

The growing demand for sustainable road infrastructure highlights the importance of pervious concrete in storm-water management. This study explores development cement-slag-based incorporating waste foundry sand (WFS) as a partial replacement (up to 50%) river and coarse aggregates optimised proportions. Additionally, bio-admixture, palm jaggery (PJ), was introduced enhance mechanical performance mixes. Key findings include achieving optimum strength with binder composition 20% slag replacement, 50% WFS 0.2% PJ dosage. permeable mix demonstrated compressive 21.2 MPa, split tensile 1.82 flexural 3.51 MPa permeability 498 mm/min, satisfying set design criteria. Flexural fatigue test results indicated that performed better than other selected research underscores potential bio-admixtures advancing resilient environmentally friendly urban infrastructure.

Language: Английский

Citations

1
Alkali-Activated Permeable Concretes with Agro-Industrial Wastes for a Sustainable Built Environment DOI Open Access
Shriram Marathe,

Martyna Nieświec,

B. Gronostajska

et al.

Materials, Journal Year: 2024, Volume and Issue: 18(1), P. 87 - 87

Published: Dec. 28, 2024

This research presents a proposal for alkali-activated permeable concrete composites with the use of industrial by-products, including ground granulated blast-furnace slag (GGBS) and waste-foundry sand, as well agro-desecrate product, i.e., sugarcane bagasse ash (SBA). GGBS SBA served binders, crushed granite coarse aggregate sand fine aggregate. The novelty this is in examining influence SBA, combination slag, on fresh- hardened-state properties proposed concretes. Experiments were conducted to optimize percentage based hydraulic conductivity compressive tensile strength after 28 days air curing. hardened density, compaction factor (workability), saturated water absorption also measured all mixes. Furthermore, control optimal mixes subjected evaluate microstructure analysis (EDX, XRD, FESEM) mix containing 100% 0% reference, 10% (with 90% GGBS) used comparative understand its effect composites. results showed positive or acceptable mechanical performance at ratio binders. study aims enhance understanding engineering behavior composites, facilitating rational design pavement systems through effective agro-industrial waste products, thereby conserving ecosystems while meeting requirements.

Language: Английский

Citations

1