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40 articles for “porosity”
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Modeling 28 Days’ Curing Compressive Strength of Concrete Partially Replaced with Palm Kernel Shell as Aggregate Influenced by Porosity
Abstract: Twenty-eight days of curing to determine compressive strength of concrete were carried out throughthe application of modeling and simulation. The development of concrete compressive strength wascarried out by integrating palm kernel shell (PKS) as partial replacement for aggregate. Studies weremonitored to determine its rates of strength development by partially replacing PKS at differentpercentage of 5%, 10%, 15%, 20%, and 25% to determine the optimum compressive strength withinthe applied percentage of …
Published in International Journal of Concrete Technology · Vol. 9, Issue 2, 2023 · pp. 26–40 Read article
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Predicting the Spread of Nitrosomonas on Low Deposited Porosity and Void Ratio in Coarse Formation of Degema Coastal Location
Abstract: This paper discus the prediction of Nitrosomonas deposited in low porosity and void ratio in coarse formation, the deposition of Nitrosomonas express the behavior reflecting from the influential variables that were observed to pressure the deposition of Nitrosomonas in coarse deposited formation. Several conditions on the migration process were considered in the derived solution, this expression from the derived solution shows how the system in other ways could developed accumulation …
Published in International Journal of Water Resources Engineering · Vol. 4, Issue 1, 2018 · pp. 9–16 Read article
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Design and Analysis of Metal-Organic Frameworks for Gas Adsorption and Storage
Abstract: Metal-Organic Frameworks (MOFs) represent a class of highly porous materials formed by the coordination of metal ions with organic linkers, exhibiting exceptional potential for gas storage applications due to their high surface area, tunable pore sizes, and structural versatility. The synthesis and characterization of MOFs intended for the effective storage of gases like carbon dioxide, methane, and hydrogen are the main topics of this work. Solvothermal Hectic strategies, including solvothermal, …
Published in International Journal of Metallurgy and Alloys · Vol. 10, Issue 1, 2024 · pp. 25–30 Read article
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Experimental Test Results on the Effect of Ultrasonic Waves on Defects in Car Bearings: The Effect of Defect Size
Abstract: To check for defects in car bearings, they are identified and measured by sound waves that are affected by the defect. Based on sound, it is called ultrasound technology because it uses high frequencies. High frequencies are the basis of ultrasound. Two features are useful for low-speed cars, which by definition usually have poor signal tolerance. High frequencies are sensitive to the effects of sound waves. In addition, the ultrasound …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 7, Issue 1, 2021 · pp. 14–21 Read article
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Investigating Physical and Durability Properties of Pervious Concrete with Fly Ash-Based GP, PPC, and FaL-G Binders
Abstract: AbstractPervious concrete is gaining prominence as a sustainable pavement material due to its enhancedpermeability, reduced runoff, and environmental benefits. This study evaluates the physical anddurability properties of pervious concrete incorporating different binders, including OrdinaryPortland Cement (OPC), Fly Ash-based Geopolymer (GP), Portland Pozzolana Cement (PPC),and Fly Ash-Lime-Gypsum (FaL-G). The key parameters assessed include permeability,porosity, dry density, salt resistance, sulfate resistance, acid resistance, water absorption, andthermal expansion. Permeability results indicate that FaL-G …
Published in International Journal of Concrete Technology · Vol. 11, Issue 2, 2025 · pp. 15–21 Read article
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Modeling Fly Ash and Alccofine Partial Replacement of Concrete Density for High Strength Development
Abstract: This paper monitor the development of density from concrete model partially replaced cement with alccofine and fly ash, the study were generated applying modeling techniques, this concept were adopted to detail the influence of other concrete properties that influenced the growth rate of concrete density generated from such model concrete. Linear influences were observed in all the figures, the study observed variations of growth rate in the study, these are …
Published in International Journal of Sustainable Building Technology · Vol. 3, Issue 1, 2020 · pp. 29–48 Read article
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No Fine Concrete
Abstract: No-fine concrete has been in use in many countries over more than a century. Its higher porosity helps in percolating rain water directly to ground and thereby helps in recharging groundwater aquifer. In this study, 3 batches of no-fine concrete each with two different sizes of aggregate were prepared to find the mix that generated high compressive strength and study the effect of percentage of fine aggregate on the compressive …
Published in International Journal of Concrete Technology · Vol. 3, Issue 2, 2017 · pp. 18–30 Read article
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Some Geomechanical and Petrophysical Linkages Within Paleo-Sedimentary Beds of Ghana
Abstract: Instability issues have been a major challenge in the Sekondian Series of South-Western Ghana. This is particularly affecting civil works and environmental mitigation efforts across the formation as extensive weathered profile impedes structural integrity. Uniaxial Compressive Strength (UCS) of lithological units which is a critical stability measure in most engineering projects requires quality sample of appropriate dimension for its determination. Samples for this important design parameter cannot be easily obtained …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 6, Issue 1, 2020 · pp. 31–42 Read article
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Tri-Route Orchestration of Sr-Modification, MoldVibration, and T6 Treatment on the Microstructure andPerformance of A356 Alloy
Abstract: This study examines the cascade effects of chemical modification, mechanical mold vibration during solidification, and subsequent T6 heat treatment on the microstructural evolution and multi-property enhancement of A356 Alloy cast via permanent mold casting. Initially Sodium (Na) modifying flux (2– 4 wt%) and Strontium (Sr) elemental modifier (0.01–0.05 wt%) were implemented to refine the morphology of eutectic silicon; Sr addition at an optimal concentration of 0.04 wt.% yielded superior eutectic …
Published in International Journal of Manufacturing and Materials Processing · Vol. 12, Issue 2, 2026 · pp. 13–25 Read article
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Growth Potential and Effects of Leucaena leucocephala on Physicochemical Properties of Spent Engine Oil Polluted Soil
Abstract: Reclamation of spent engine oil (SEO) polluted soil is important for agricultural development in our environment. The greenhouse experiment was conducted for 16 weeks to investigate the potential of Leucaena leucocephala (LL) to survive in and improve the physicochemical properties in soil polluted with SEO at; 2.5%, 5%, 10% v/w and 0% served as the control. Plant height and girth were taken weekly and bulk density, porosity, pH, nitrogen, phosphorus, …
Published in International Journal of Plant Biotechnology · Vol. 6, Issue 2, 2020 · pp. 15–23 Read article
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Development of Geo-Polymer based Light Weight Bricks
Abstract: Light weight geopolymer bricks were developed during this study. The mix was made with lime sodium silicate and fly ash as ingredients. A maximum shrinkage was observed at CaO lime ratio of 1.0. Bulk densities were also lower at the ratio of 1.0. The maximum cold crushing strength (CCS) value was found at the ratio of 0.745. Increase in mix water decreased the strength. Water content of 24% is recommended …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 1, Issue 1, 2015 Read article
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Production and Characterization of Biomass Briquette from Sawdust and Cow Dung Admixture for Domestic Cooking Applications in Northern Ethiopia
Abstract: This study explored the possibility of producing and characterize biomass briquettes from sawdust and caw dung admixture that could be used as a sustainable fuel sources of energy supply for domestic cooking applications. In this study, Potato starch used as a binder. The physical and composition properties of the sawdust and cow dung as well as the developed biomass Briquettes were determined using Thermogravimetric analysis. A portion of sawdust and …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 5, Issue 2, 2019 · pp. 49–57 Read article
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Innovative Concrete Composites: Assessing Mechanical Strength with Fly Ash, Glass, and Granite Waste Incorporation
Abstract: Waste management poses a significant challenge for countries in both current and future contexts. The generation of solid waste from various industries, such as stone, glass, coal, and tires, constitutes a major issue in India, leading to significant environmental and health concerns for the surrounding population. This study addresses these challenges by exploring the utilization of waste granite and glass powder as materials to replace sand and cement, respectively, with …
Published in International Journal of Construction Engineering and Planning · Vol. 9, Issue 2, 2023 · pp. 37–45 Read article
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Mathematical Model to Monitor Concrete Compressive Strength Partially Replaced with Periwinkle and Palm Kernel Shell as Aggregate
Abstract: This research work monitor that application of periwinkle and palm kernel shell as partial replacement for aggregate, the study are carried out applying modeling and simulation techniques, concrete are normally heterogeneous in most cases, but the study try to examine the growth rate of the material on their compressive strength, such process were carried out using these two locally sourced material at different percentage of replacement for aggregate, the study …
Published in International Journal of Construction Engineering and Planning · Vol. 9, Issue 2, 2023 · pp. 6–28 Read article
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Synthesis and Characterization of Polymer-Based Organic–Inorganic Hybrid Materials viaSol–Gel Processing: A Review of Gelatin–Silica, Gelatin–Silica–Titania and HPMA-Based Systems
Abstract: Organic–inorganic hybrid materials have emerged as a versatile class of advanced materials that integrate the flexibility and functionality of organic polymers with the thermal, mechanical, and chemical stability of inorganic networks. Among the available fabrication routes, the sol–gel process has gained considerable attention because of its simplicity, low processing temperature, compositional flexibility, and ability to tailor material properties at the molecular level. The present review discusses the synthesis and characterization …
Published in International Journal of Polymer Science and Engineering · Vol. 12, Issue 2, 2026 Read article
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Sustainable Cementitious Composites withEpoxy–Alccofine Synergy
Abstract: This research examines the combined influence of epoxy resin and Alccofine when used as partial substitutes for cement in producing sustainable, high-performance concrete. The study aims to improve both strength and durability properties while simultaneously reducing cement usage and its environmental impact. Concrete mixes were prepared with epoxy resin contents of 0%, 5%, and 10% by weight of cement, along with Alccofine replacement levels of 5%, 10%, and 15%. The …
Published in International Journal of Concrete Technology · Vol. 12, Issue 2, 2026 · pp. 1–12 Read article
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Synthesis, Spectral Study, SEM Analysis and Antibacterial Study of New Indole Azo Ligand and Complexes
Abstract: Azo ligands have developed significantly in recent decades due to their fundamental role in the coordination chemistry of transition elements. Their rapid response to coordination bonding in ligand and complex chemistry, particularly with divalent ions, is a key factor. The azo-bridged bond has played a well-established role in the formation of cobalt, nickel, and copper complexes. In this study, we prepared a novel ligand, an indole derivative bonded to an …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 1, 2026 · pp. 1–10 Read article
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Comprehensive Review of Processes, Materials, Developments, and Challenges of Additive Manufacturing
Abstract: Abstract Additive Manufacturing (AM), or 3D printing as it is known widely, has evolved significantly from being a prototyping technology to an end-use production technique across different industrial sectors. This groundbreaking technology allows for the direct creation of intricate, user-designed, and high-performance components through sequential addition of material from digital models, which abolishes most of the design and production constraints of conventional manufacturing. Its application is underscored by its pivotal …
Published in International Journal of Manufacturing and Materials Processing · Vol. 11, Issue 2, 2025 · pp. 6–24 Read article
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A look at friction stir processing for making better surface properties
Abstract: Abstract Friction stir processing is a surface properties modification method consequential from friction stir welding. The process uses a non-consumable tool made up of tool steel material. The tool pin and shoulder plunged in the surface of the base material plates and it mover along the predetermined path. The frictional heat stimulates the plastic deformation during the process & enhances the dynamic recrystallization. The process represents an advanced approach that …
Published in International Journal of Manufacturing and Materials Processing · Vol. 11, Issue 2, 2025 · pp. 41–47 Read article
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Ensuring Long-Term Durability and Resilience in Concrete Structures
Abstract: Abstract Durable concrete refers to a type of concrete that can effectively resist weathering over a prolongedperiod, maintaining its structural integrity and functionality. Weathering actions include physical,chemical, and environmental factors, such as temperature variations, freeze-thaw cycles, moisture ingress, and exposure to aggressive chemicals. Concrete durability is critical for ensuring the long-term performance and safety of structures. Rainwater, when mixed with air, often contains dissolved gases and chemicals that can penetrate …
Published in International Journal of Concrete Technology · Vol. 11, Issue 1, 2025 · pp. 1–5 Read article