The Global NEST Journal is an open access journal that publishes original research articles, short papers and critical reviews on all aspects of Environmental Science and Technology. These comprise, but are not limited to, Pollution Control Technology, Global Environmental Change, Air Quality, Water Quality, Water and Waste Water Treatment, Solid Waste Management, Hazardous Substances and Risk Analysis, Emerging pollutants. Relevant topics incorporating the methodologies and state of the art of disciplines such as Environmental Management Policies, Ecosystems and Natural Resources Management, Hydrology and Water Resources Management, Clean Energy and Sustainability are included.
Submitted manuscripts are initially reviewed by the editor and selected after rigorous peer review by scientists in order to assess the significance, originality and appropriateness for publication.
Articles submitted to Global NEST Journal benefit from its broad scope and readership. We aim for a turnaround time of 4 weeks from submission to first decision.
Global NEST Journal is addressed to professionals in Academic, Consulting Offices, Government Agencies and Organisations, as well as others responsible for the investigations, evaluation of complicated environmental issues of global interest.
Bayesian-Optimized Deep Learning for Predicting Compressive Strength of Sustainable Eggshell Foamed Concrete
Food waste
The use of eggshell-based foamed concrete represents a sustainable approach to enhancing environmental friendliness in construction materials. This study investigates the predictive modelling of the compressive strength of eggshell-based foamed concrete through a deep learning model, fine-tuned via...
Effect of additives on the compressive strenght of slag-based inorganic polymers
General
The present paper aims to assess the effect of various additives on the compressive strength of inorganic polymers (geopolymers) synthesised using low Ca electric arc ferronickel slag and alkali activating solutions. The main operating parameters include pre-curing (48 hours), temperature (40 to 80...
High Strength Geopolymers Produced from Coal Combustion Fly Ash
General
High strength geopolymers were produced from coal combustion fly ashes. These matrices reached compressive strength values over 100 MPa, much stronger and denser than obtained by using Portland Cement binders. Size fractions were obtained by size separation techniques and the relationship between...
Optimizing lightweight concrete with coconut shell aggregates for high strength and sustainability
Solid Waste Management
In this investigation, coconut shell, a lightweight agricultural waste, is used to completely replace coarse material. Based on previous findings, it is suggested that coconut shell be used as coarse aggregate in structural lightweight concrete. Therefore, the purpose of the study was to develop...
Utilization of nanomaterials and ceramic waste for sustainable environmental protection
Solid Waste Management
The amount and type of waste are increasing due to population growth. Many harmful materials have been in the atmosphere for a very long times. This causes a crisis in the waste disposal and thereby contributes to environmental issues. Recycling concrete manufacturing waste materials not only offers...
Strength studies on concrete using e-plastic waste as coarse aggregate
Solid Waste Management
As an important resource for the IT sector and due to the extremely hazardous elements it contains and the low recycling rate, e-plastic waste management and recycling are growing swiftly. E-plastic waste utilization reduces aggregate costs, landfill costs and energy prices. Rapid population growth...
Influence of Chemical and Thermal Treatment Methods on the Mechanical and Micro-Structural Characteristics of Coconut Shell based Concrete
General
In this study, an attempt is made to understand the effectiveness on initial treatment of coconut shell on the strength of concrete. The coconut shell materials obtained from the agricultural wastes are used as a replacement for coarse aggregate in conventional concrete. From the particle size...
Enhancing the Interface of Cement-paste Composite by Dispersing Sustainable Nano-Carbon Pyrolytic Char with Silica fume: A Sustainable and Effective approach
General
Discrete studies are performed on the reuse of end-of-life tires in the construction industry as their accumulation is a global concern to the environment. In consequence, the desired focus of this work is to understand the interaction of powder derived from recycling process of tire waste which yet...
Sustainable Utilization of Calcined Granite Powder as Partial Replacement for Cement in Concrete Mixtures: A Mechanical and Environmental Assessment
Solid Waste Management
The escalating environmental concerns associated with cement production have prompted to explore alternative materials for partial replacement, aiming to reduce the carbon footprint of the construction industry. This research investigates the incorporation of calcined granite powder, a byproduct of...
Rheology of binary cement paste system blended with silica fume and alccofine
Circular economy
The flow properties of the binary cement paste system added with supplementary cementitious materials, effect of polycarboxylate based superplasticizer dosage and their influence on the yield stress and the plastic viscosity were studied. The cementitious materials under the study are silica fume...
Pine cone ash stabilization of expansive soils
Solid Waste Management
The use of appropriate waste materials to stabilize problematic soils, such as expansive soils that are responsible for geotechnical damage, is a common practice in geotechnical engineering. This study presents the use of pulverized ash from the combustion of pine cone (PC) waste as a stabilizing...
Influence of Utilizing Prosopis Juliflora Ash as Cement on Mechanical Properties of Cement Mortar and Concrete
Ecology, environmental change and management
The infrastructure of the country heavily depends on the construction material concrete. The primary ingredient in conventional concrete is cement, fly ash, or another cementitious substance. The need to explore alternative sources is driven by the challenges posed by global environmental warming...
Feasibility study of cement composites with para wood particle wastes: strength and durability
General
The purpose of this study was to investigate the potential use of Para wood particle wastes and cement for producing the cement composite as a new environmental friendly construction material. Strength and durability of cement composites mixed with different mix proportions of Para wood particles...
Utilizing rice husk ash as a bio-waste material in geopolymer composites with aluminium oxide
Biowaste
Permanent damages and spalling occur in conventional concrete due to high temperatures. Also concrete loses its compressive strength amounting to about 50 to 75% of the original strength as reported in most of the research works. As opting for high grade of concrete leads to higher costs and emits...
Experimental Investigation of Effect of Waste PET fibres on the Impact Behaviour of PET Fibre Reinforced Concrete
Solid Waste Management
Concrete, being the construction material that is extensively employed, possesses various limitations despite its adaptability in building projects. It exhibits weakness when subjected to tension, has restricted ductility, and offers minimal resistance against cracking. Concrete is widely used in...
A Study on Cement-free Geopolymer Concrete incorporated with industrial waste Cured at Open Environment for different molarities of sodium hydroxide
Air Quality
Nowadays, the increase in population and industrial growth that generates lot of waste products which creates disposal problems and severe environmental hazards. The cement industry is one of the important sectors which liberates greenhouse gas such as carbon dioxide. The consumption of waste...
Performance Evaluation of Drying Shrinkage and Durability in Pavement Quality Concrete with Recycled Aggregate, GGBS and I-Crete
Solid Waste Management
The study examines replacement of natural aggregates (NA) with Recycled Aggregate (RA) in Pavement Quality Concrete (PQC) M40 grade (M1) with 25%, 50%, 75% and 100% RA replacing NA in M2, M3. , M4 and M5 mixes. The compressive strength decreases with higher RA, but all mixes reach the target...
Experimental study on effective utilization of industrial solid wastes in developing Ultra-High Performance Geopolymer Concrete
Circular economy
This experimental study explores the use of Ground Granulated Blast Furnace Slag (GGBS) and dolomite as alkali activated binders and copper slag as aggregate to achieve a cost-effective and sustainable Ultra-High-Performance Geopolymer Concrete (UHPGC). Several concrete compositions utilizing copper...
Transforming waste into sustainable building materials: Properties and environmental impacts of Geopolymer concrete with recycled concrete aggregates
Solid Waste Management
Industrial by-products such as cementitious materials or aggregates have the potential to mitigate the adverse environmental effects associated with traditional cement manufacture. Geopolymer Concrete (GPC) is more eco-friendly than conventional concrete because it does not require cement. GPC with...
Physical and mechanical properties of lightweight concrete with the incorporation of waste disposal polyurethane foam as coarse aggregate
Solid Waste Management
Industrial waste in engineered concrete mixes is an enormous step towards sustainable development. Polyurethane foam waste (PUFW) is mainly generated by the refrigeration, automobile, and construction industries. Day by day, large amounts of PUFW are incinerated and disposed of in landfills, which...
Strength and Durability Studies on Concrete using Cashew Nut Shell Ash (CNSA) waste as Supplementary Materials
Solid Waste Management
As the world population is expected to increase significantly, there is a greater need for housing and, as a result, building materials. Conventional manufacturing methods for materials such as concrete involve substantial energy usage and substantial release of carbon emissions, which contribute to...
Utilization of metallurgical solid by-products for the development of inorganic polymeric construction materials
General
This paper deals with the geopolymerization of the red mud generated in the primary aluminium production and the slag generated in the ferronickel production, in order to develop inorganic polymeric materials with advanced mechanical and physical properties. In particular, the effect of the main...
Enhancing Solid Waste Sustainability with Iroko Wooden Sawdust and African Oil Bean Shell Particle-Strengthened Epoxy Composites
Solid Waste Management
Bio-composite materials are gaining traction in various industries as sustainable alternatives to synthetic fiber-reinforced composites. This study investigated the impact of fine powders loading on the tensile, transverse, and compressive characteristics of hybrid composites composed of Iroko...
Valorization of plastic waste aggregate in concrete: A study on durability and microstructural properties.
Solid Waste Management
Efficient valorization of plastic waste is widely investigated by numerous researchers. The need for an alternate to conventional aggregate in concrete production has led to the evolution of numerous artificial aggregates. This research investigates the impact of adverse environmental exposure...
Environment friendly sustainable concrete produced from marble waste powder
Environmental Management and Policies
Concrete is an indispensable construction material renowned for its versatility and durability, yet its traditional components pose significant environmental challenges. The cement industry is a major emitter of CO2, while the extensive extraction of natural aggregates depletes finite resources. In...
Thematic areas
Circular economy
Climate change and air pollution
Solid waste management
Water and wastewater
Optimization of Nozzle Hole Number for Dual Fuel Operation Using Biodiesel Blends: A Response Surface Methodology Approach
Sustainable Energy
19-12-2024
Radioactivity and radon exhalation from cat litter – Is there an issue?
General
19-12-2024
Influence of the Injector Nozzle on Hydrogen-Powered Juliflora Biodiesel in HCCI Engines: A Surface Response Methodology Approach
Sustainable Energy
19-12-2024
Bioclimatic Analysis and Proposal of Bioclimatic Strategies for Buildings: Case Studies in Santo André, São Paulo, Brazil
Climate change mitigation...
14-12-2024
Prosopis julifera oil: optimization and biodiesel production
Sustainable Energy
14-12-2024
Deploying and sensing the air quality index using internet of things and spark model
Air Quality
14-12-2024
Study on Eco-environmental Quality Evaluation of Rural Tourism Area Based on Factor Evaluation Method
Environmental Management and...
14-12-2024
The Impact of Industrial Competitiveness on Carbon Emission Intensity: Evidence From Improved EKC Model
Climate change mitigation...
14-12-2024
Multivariate time series weather forecasting model using integrated secondary decomposition and Self-Attentive spatio-temporal learning network
Climate change mitigation...
14-01-2025
Impact of Artificial Intelligence Technology on Carbon Emission Intensity of Energy Consumption in China and Examination of Spatial Effects
Environmental Management and...
14-01-2025
A Novel Approach for Predicting Particulate Matter 2.5 and 10 Concentration using Modal Autoformer and Seq-2Seq Model
Air Quality
14-01-2025
Enhanced Deep Maxout Network for Monitoring Particulate Matter 2.5 and 10 Concentration in Air via Interpolated Data Smoothing
Air Quality
14-01-2025
The Impact of Formulation and Process Variables on the Formation of Chitosan-Alginate and Chitosan-Pectin Nanoparticles
Nanomaterials in the environment:...
14-01-2025
Air Quality Prediction Using a U-Net Inspired 1D-CNN with Attention Mechanisms
Air Quality
14-01-2025
Comparative Adsorption of Synthetic Dyes Using Low-Cost Biosorbents: Analysis of Thermodynamics and Isotherms
Water and Wastewater...
12-01-2025
Bioremediation Potential of Biochar, Compost and Bacillus sp. N18 for lead Contaminated Soil and Improving Physiological and Morphological Attributes of Maize
Ecology, environmental change...
12-01-2025