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Articles 112021 - 112050 of 2920705

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Sustainable Geopolymer Concrete For Pavements: Performance Evaluation Of Recycled Concrete Aggregates In Fly Ash-Based Mixtures, B. Naga Malleswara Rao, Chereddy Sonali Sri Durga, Chava Venkatesh, T. Muralidhara Rao Apr 2025

Sustainable Geopolymer Concrete For Pavements: Performance Evaluation Of Recycled Concrete Aggregates In Fly Ash-Based Mixtures, B. Naga Malleswara Rao, Chereddy Sonali Sri Durga, Chava Venkatesh, T. Muralidhara Rao

Journal of Sustainable Construction Materials and Technologies

This study investigates the feasibility of incorporating recycled concrete aggregates (RCA) into fly ash-based geopolymer concrete for sustainable pavement applications. The research evaluates RCA’s physical and mechanical properties compared to virgin coarse aggregates (VCA) and assesses the performance of geopolymer concrete mixtures with up to 40% RCA replacement. Aggregate characterization revealed that RCA exhibited higher water absorption (4.39%), crushing value (20.9%), impact value (28.2%), and abrasion value (26.1%) compared to VCA, yet these values remained within acceptable limits for pavement applications. Geopolymer concrete specimens were tested for compressive strength, water absorption, abrasion resistance, and chloride ion permeability. Results indicated that …

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Experimental Investigation Of Mechanical And Physical Properties Of Glass Fiber Reinforced Concretes Produced With Different Magnetized Waters, Serkan Subaşı, Doğu Ramazanoğlu, Muhammed Maraşlı, Volkan Ozdal, Yasemin Hatipoğlu, Heydar Dehghanpour Apr 2025

Experimental Investigation Of Mechanical And Physical Properties Of Glass Fiber Reinforced Concretes Produced With Different Magnetized Waters, Serkan Subaşı, Doğu Ramazanoğlu, Muhammed Maraşlı, Volkan Ozdal, Yasemin Hatipoğlu, Heydar Dehghanpour

Journal of Sustainable Construction Materials and Technologies

Magnetized water may act as a thickener in cementitious mixtures due to its slippery effect. Therefore, it can be beneficial for the mixture to settle easily and to improve its strength. This study investigated the effects of magnetized water passing through pipes with magnetic field intensity (MFI) 8 and 10 on glass fiber reinforced concrete (GFRC). Three different mixtures, the GFRC mixture produced with regular tap water, were obtained, and the properties of the produced GFRC samples, such as 7, 14, and 28 days H-Leeb hardness, density, Ultrasonic pulse velocity (UPV), flexural strength, compressive strength, and fracture mechanics were investigated. …

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Replacement Of Conventional Aggregates And Fillers With Steel Slag And Palm Kernel Shell Ash In Dense-Graded Asphalt Mixtures, Collins A. Nketiah, Kenneth A. Tutu, Ebenezer D. A. Barnor, David A. Azong-Bil Apr 2025

Replacement Of Conventional Aggregates And Fillers With Steel Slag And Palm Kernel Shell Ash In Dense-Graded Asphalt Mixtures, Collins A. Nketiah, Kenneth A. Tutu, Ebenezer D. A. Barnor, David A. Azong-Bil

Journal of Sustainable Construction Materials and Technologies

Large quantities of steel slag and palm kernel shell ash (PKSA) – waste products from steel production and palm oil milling, respectively – are generated annually in several countries, and their disposal is challenging. Meanwhile, the over-reliance on conventional rock aggregates for asphalt mixture production poses increasing sustainability challenges. This study investigated the potential of entirely replacing granite aggregates with steel slag and PKSA in a dense-graded asphalt mixture. Two sets of asphalt mixtures were prepared; the control mixture contained crushed granite aggregate and hydrated lime, while the other set incorporated steel slag as coarse aggregate and PKSA as fine …

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Sustainability Beyond The Surface: Evaluating The Long-Term Environmental And Energy Performance Of Selected Cladding Materials For Housing Retrofits, Mark Alegbe, Nasuri Hammed Apr 2025

Sustainability Beyond The Surface: Evaluating The Long-Term Environmental And Energy Performance Of Selected Cladding Materials For Housing Retrofits, Mark Alegbe, Nasuri Hammed

Journal of Sustainable Construction Materials and Technologies

External walls, constituting the largest exposed surface area of the building envelope, face heightened susceptibility to environmental influences. In this study location, aesthetic con- siderations often overshadow environmental impact and comfort requirements in selecting exterior cladding materials. This paper investigates the energy performance, global warming potential, and thermal comfort aspects of carefully selected cladding materials, informed by an exhaustive literature review, for application in retrofit projects in Abuja, Nigeria. Energy con- sumption, carbon emissions, and temperature distributions were simulated using materials in a hypothetical single-floor residential building finished with cement-sand plaster. The findings show that gravel stone exhibits the most …

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Optimizing Seismic Performance: Integrating Friction Dampers Into Spherical Liquid Tanks, Yunus Uçar, Mehmet Fatih Altan Apr 2025

Optimizing Seismic Performance: Integrating Friction Dampers Into Spherical Liquid Tanks, Yunus Uçar, Mehmet Fatih Altan

Journal of Sustainable Construction Materials and Technologies

This study addresses the vital challenge of ensuring the safe storage of Liquid Natural Gas (LNG) in spherical tanks during seismic events, focusing on the crucial balance between meeting seis- mic performance criteria and mitigating economic losses due to potential operational disrup- tions from necessary retrofitting efforts. In response to this challenge, we present a case study on retrofitting an LNG tank near the North Anatolian Fault (NAF) line of Türkiye. Through a com- prehensive seismic evaluation, this study reveals inadequacies in the existing case's compliance with seismic criteria. It suggests a remedy involving the increased stiffness of lateral force-resist- …

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Evaluation Of The Effect Of Para-Aramid And Micro-Polyolefin Fibers On Permanent Displacement In Stone Mastic Asphalt, Sepehr Saedı Apr 2025

Evaluation Of The Effect Of Para-Aramid And Micro-Polyolefin Fibers On Permanent Displacement In Stone Mastic Asphalt, Sepehr Saedı

Journal of Sustainable Construction Materials and Technologies

This study examines the role of fibers formed from para-aramid and micropolyethylene in enhancing the performance of stone mastic asphalt (SMA) mixtures against permanent defor- mation. The use of SMA mixtures has the potential to mitigate permanent deformation and plasticity. Marshall tests, static creep tests, fatigue tests, and wheel track tests were conduct- ed on samples prepared using the modified Marshall design method to achieve the research objectives. According to the test results, Samples containing 1.5% of the fiber mixture's total weight exhibited greater strength than other samples. Additionally, these samples demonstrat- ed the most minor displacement against rutting among …

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Synergistic Effects Of Ggbfs Addition And Oven Drying On The Physical And Mechanical Properties Of Fly Ash-Based Geopolymer Aggregates, Chereddy Sonali Sri Durga, Venkatesh Chava, Mukkala Priyanka, Bypaneni Krishna Chaitanya, B. Naga Malleswara Rao, T. Muralidhara Rao Apr 2025

Synergistic Effects Of Ggbfs Addition And Oven Drying On The Physical And Mechanical Properties Of Fly Ash-Based Geopolymer Aggregates, Chereddy Sonali Sri Durga, Venkatesh Chava, Mukkala Priyanka, Bypaneni Krishna Chaitanya, B. Naga Malleswara Rao, T. Muralidhara Rao

Journal of Sustainable Construction Materials and Technologies

Conventional coarse aggregates, extracted from natural sources, pose environmental challenges such as habitat destruction, resource depletion, and high energy consumption. To mitigate these effects, this study prepared geopolymer aggregates (G.A.) using fly ash–GGBFS and an alkali ac- tivator solution through pelletization. Furthermore, two aggregate drying methods, oven drying, and ambient air drying, are adopted to evaluate their optimal performance through physical and mechanical tests. The results Indicated that oven-dried geopolymer aggregates exhibited optimal behavior in all experimental aspects compared to ambient air-dried aggregates. Specifically, the 80% fly ash–20% GGBFS mixed aggregates demonstrated lower crushing value (20.80%), impact value (24.7%), water …

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Flexural And Cracking Behavior Of Reinforced Lightweight Self-Compacting Concrete Beams Made With Leca Aggregate, Ramanjaneyulu Ningampalli, M. V. Seshagiri Rao, V. Bhaskar Desai Apr 2025

Flexural And Cracking Behavior Of Reinforced Lightweight Self-Compacting Concrete Beams Made With Leca Aggregate, Ramanjaneyulu Ningampalli, M. V. Seshagiri Rao, V. Bhaskar Desai

Journal of Sustainable Construction Materials and Technologies

In the current research, an attempt was made to examine the flexural and cracking behavior of reinforced lightweight self-compacting concrete (LWSCC) beams incorporating light-expand- ed clay aggregate (LECA) as a partial replacement for natural coarse aggregate (NCA). Me- chanical properties such as compressive strength, split tensile strength, and flexural strength were evaluated, alongside fresh properties assessed using flow table, V-funnel, J-ring, and L-box tests. The study examined six beams, including a control mix, with LECA replacements of 5%, 10%, 15%, 20%, and 25%. The results indicate that compressive strength decreased with higher LECA content, from 44.56 MPa in the control …

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Experimental Investigation Of The Effect Of Longitudinal Tensile Reinforcement Ratio On Ductility Behaviour In Gpc Beams, Ahmet Özbayrak, Ali İhsan Çelik, Mehmet Cemal Acar, Ahmet Şener Apr 2025

Experimental Investigation Of The Effect Of Longitudinal Tensile Reinforcement Ratio On Ductility Behaviour In Gpc Beams, Ahmet Özbayrak, Ali İhsan Çelik, Mehmet Cemal Acar, Ahmet Şener

Journal of Sustainable Construction Materials and Technologies

This research first determined the strength of the cylindrical geopolymer concrete materi- als under compressive stresses. Secondly, conventional and geopolymer-reinforced concrete beams were manufactured in different reinforcement ratios, and their mechanical properties were compared under bending. The main aim of this study is to experimentally compare the effect of reinforcement ratio on the ductility behavior of an alkali-activated geopolymer con- crete (GPC) beam with that of an ordinary Portland cement (OPC) beam. First, balanced reinforcement calculations were made considering the mechanical properties obtained from the material tests. The load-displacement, moment-curvature, and crack development results obtained from beam tests are interpreted …

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Mechanical Properties Of Kevlar And Jute Fiber Reinforced Concrete, Shamsoon Fareed, Bilal Zahid, Asad-Ur-Rehman Khan Apr 2025

Mechanical Properties Of Kevlar And Jute Fiber Reinforced Concrete, Shamsoon Fareed, Bilal Zahid, Asad-Ur-Rehman Khan

Journal of Sustainable Construction Materials and Technologies

Concrete, due to its inherent brittleness, exhibits relatively low tensile strength. Fibers have been used extensively to improve their mechanical properties as they helped to reduce the crack width. Textile industries produce a lot of natural and synthetic fiber waste, which can be utilized to produce better-performing fiber-reinforced concrete. Therefore, in this study, a detailed experimental investigation has been carried out to study the compressive, tensile, and flexural properties of the Kevlar and jute fiber reinforced concrete. Concrete specimens with a mix design ratio of 1:1.43:1.89 and a water-cement ratio of 0.6 were cast. Jute fibers with lengths of 10 …

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Determining The Importance Levels Of Criteria In Selection Of Sustainable Building Materials And Obstacles In Their Use, Serkan Yıldız, Gülnaz Şengül Güneş Apr 2025

Determining The Importance Levels Of Criteria In Selection Of Sustainable Building Materials And Obstacles In Their Use, Serkan Yıldız, Gülnaz Şengül Güneş

Journal of Sustainable Construction Materials and Technologies

The construction industry has become the focal point of sustainability as one of the largest con- sumers of natural resources and waste producers. A sustainable construction industry is possible with the sustainability of building materials, which is the main factor controlling the construc- tion management process. In this research, the importance levels of a total of 17 criteria under the headings of economic, environmental, and social sustainability in terms of sustainability of building materials and the importance levels of 11 obstacles to the use of sustainable materials were investigated through a survey conducted with the participation of 60 people. Whether …

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Mechanical And Microstructural Properties Of Mortars: Obsidian Powder Effect, Talip Çakmak, Ali Gürbüz, Zafer Kurt, İlker Ustabaş Apr 2025

Mechanical And Microstructural Properties Of Mortars: Obsidian Powder Effect, Talip Çakmak, Ali Gürbüz, Zafer Kurt, İlker Ustabaş

Journal of Sustainable Construction Materials and Technologies

Concrete has been the world's most produced and utilized building material for years due to its economic and easy accessibility. However, it attracts attention due to the CO2 emitted from cement, the raw material of concrete, during the production and consumption stages. Although there are different research studies to reduce this emission, one of the most logical solutions is to use pozzolanic materials with cement and reduce the need for cement. This paper investigated the general material characteristics of mortar samples generated by substituting obsidian pow- der with pozzolanic properties into cement at different ratios by weight. Mortar specimens with …

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Evaluation Of Antimicrobial Properties In Coatings For Operating Room Surfaces, Halit Coza Apr 2025

Evaluation Of Antimicrobial Properties In Coatings For Operating Room Surfaces, Halit Coza

Journal of Sustainable Construction Materials and Technologies

This article highlights the crucial significance of upholding sterility in operating rooms (ORs) to minimize infection risks and uphold patient safety. Putting a spotlight on the pivotal role of antimicrobial coatings, the research delves into the examination of four frequently used coatings—polyurethane, acrylic, alkyd, and epoxy—across various surfaces within ORs. The study evaluates the antimicrobial properties of these coatings against 20 contaminant bacte- ria, uncovering diverse impacts on different strains. While these coatings may not inherently possess antimicrobial characteristics, formulations enriched with agents like 1,2-benzisothi- azol-3(2H)-one (BIT) and 2-octyl-2H-isothiazol-3-one (OIT) demonstrate active resistance against bacterial growth. The results highlight the …

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Green Building Future: Algal Application Technology, Abuzer Çelekli, İrem Yeşildağ, Özgür Eren Zariç Apr 2025

Green Building Future: Algal Application Technology, Abuzer Çelekli, İrem Yeşildağ, Özgür Eren Zariç

Journal of Sustainable Construction Materials and Technologies

In the context of rising global energy demands driven by population growth and urbanization, the construction industry significantly contributes to greenhouse gas emissions during the construction phase and subsequent energy consumption. Fossil fuel dependency for heating and energy needs exacerbates climate change, necessitating urgent solutions. Algal technology emerges as a promising strategy for green building practices, addressing energy efficiency and emissions reduction. Algae's unique ability to absorb carbon dioxide (CO2) through photosynthesis is harnessed by deploying photobioreactors on building exteriors. Studies indicate that each kilogram of dry algae consumes 1.83 kg of CO2 while offering applications as organic fertilizer, oil, …

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Investigation Of Usability Of Recycled Aggregate In Sifcon Production, Adil Gültekin Apr 2025

Investigation Of Usability Of Recycled Aggregate In Sifcon Production, Adil Gültekin

Journal of Sustainable Construction Materials and Technologies

Using recycled aggregates is crucial for a more sustainable environment and economy. In this study, the properties of recycled aggregate-based SIFCONs were examined. In the scope of the study, compressive strength, high-temperature resistance, sorptivity, and fracture energy of SIFCONs produced with recycled aggregate were investigated. The results were compared with those of the limestone-bearing SIFCONs. It was determined that the compressive strength and fracture energy of SIFCONs produced with recycled aggregate were 61.2 MPa and 14.9 N/mm, respectively. Although these values are lower than those of SIFCONs produced with limestone, it has been determined that recycled aggregates are advantageous in …

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Research On The Long-Term Strength Development Of Datça Pozzolan-Based Geopolymer, Kübra Ekiz Barış, Leyla Tanaçan Apr 2025

Research On The Long-Term Strength Development Of Datça Pozzolan-Based Geopolymer, Kübra Ekiz Barış, Leyla Tanaçan

Journal of Sustainable Construction Materials and Technologies

This study examined the influence of long-term curing duration on the properties of geopoly- mers produced through the geopolymerization reaction between Datça Pozzolan and sodium silicate and potassium hydroxide solutions. The specimens were heat cured at 90 °C, 95±5% RH for 24 h initially and then kept under ambient conditions until the tests were conducted at 7, 90, and 365 days. The results showed that applied initial heat curing was appropriate to achieve high early and long-term strength. Geopolymer mortars with 12.5 M and 2.5 activator ratios had the lowest porosity (20.90%) and the highest ultrasound pulse velocity (UPV) (3.10 …

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Preparation Of Calcite-Precipitating Bacteria-Embedded Magnesium Phosphate Cement For Self-Healing Application, Deeksha Patil, Alankar Sapkal, Shreyas Pranav, Mukund Lahoti, Ashish Gadekar, Anupama Pable, Umesh Jadhav Apr 2025

Preparation Of Calcite-Precipitating Bacteria-Embedded Magnesium Phosphate Cement For Self-Healing Application, Deeksha Patil, Alankar Sapkal, Shreyas Pranav, Mukund Lahoti, Ashish Gadekar, Anupama Pable, Umesh Jadhav

Journal of Sustainable Construction Materials and Technologies

The present study was undertaken to check the feasibility of magnesium phosphate cement (MPC) for the immobilization of calcite-precipitating bacteria. An aqueous route of MPC synthesis was followed using magnesium phosphate Mg3(PO4)2 powder and ammonium phosphate solution. The Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) analysis confirmed the synthesis of MPC. The thermal decomposition analysis (TGA) showed decomposition of struvite between 50–60 °C - Paenibacillus sp. NCIM 5410 was used due to its urea hydrolysis ability. pH 9 was found to be optimum for urea hydrolysis. The urea hydrolysis steadily decreased with an increase in temperature from 30 …

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Evaluating The Factors Influencing The Sustainable Refrigerant Selection By Fuzzy Decision Making Approach, Mehmet Seyhan, Ertuğrul Ayyıldız, Melike Erdogan Apr 2025

Evaluating The Factors Influencing The Sustainable Refrigerant Selection By Fuzzy Decision Making Approach, Mehmet Seyhan, Ertuğrul Ayyıldız, Melike Erdogan

Journal of Sustainable Construction Materials and Technologies

Considering that cooling in cooling systems is more costly than heating, the importance of refrigerant selection in cooling systems is even more obvious. Due to the complexity of the refrigerant selection problem, a multi-criteria decision approach must be used to implement a thorough and organized evaluation of the factors. The purpose of this study is to evaluate the criteria to be considered when choosing refrigerants using the interval type-2 trapezoidal fuzzy Analytic Hierarchy Process (AHP). As a result, the most important and least crucial refrigerant selection criteria are determined by calculating the weights and obtaining the ranking of the requirements. …

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Effect Of Mineral Admixtures And Curing Regimes On Properties Of Self-Compacting Concrete, Venkatesh Chava, Seshagiri Rao M.V., Praveen Kumar Munugala, Sonali Sri Durga Chereddy Apr 2025

Effect Of Mineral Admixtures And Curing Regimes On Properties Of Self-Compacting Concrete, Venkatesh Chava, Seshagiri Rao M.V., Praveen Kumar Munugala, Sonali Sri Durga Chereddy

Journal of Sustainable Construction Materials and Technologies

This study investigated the influence of mineral admixtures (fly ash, silica fume, metakaolin) and curing conditions (water immersion, polyethylene glycol, gunny bags, accelerated curing) on the properties of self-compacting concrete (SCC). The rheological properties, compressive strength, chloride penetration resistance, and microstructure were evaluated. Incorporating mineral admixtures improved the workability, strength (up to 53% increase), and durability of SCC compared to plain mixes, with 20% metakaolin replacement optimal. Water immersion curing enhanced the compressive strength (3–15% increase) and chloride resistance (up to 30% decrease in migration coefficient) owing to improved hydration and microstructural refinement. Mineral admixtures reduced the sensitivity of SCC …

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Dewatering Process For Reuse Of Seabed Dredging Material And Time And Cost Optimization Of The Process By Value Engineering Method, Cansu Kayabaşı Aksu, Şenay Atabay Apr 2025

Dewatering Process For Reuse Of Seabed Dredging Material And Time And Cost Optimization Of The Process By Value Engineering Method, Cansu Kayabaşı Aksu, Şenay Atabay

Journal of Sustainable Construction Materials and Technologies

The decrease in resources in the world has led people to produce new solutions for the more efficient use of resources and to use various management techniques. One of the techniques used is Value Engineering. Value Engineering strives to increase the value of structures by optimally organizing each component that makes up the structure. Increasing the value of a structure is possible by eliminating all the unnecessary costs in line with specific criteria and by providing the optimal solution between the owner, the user, and the contractor's objectives, that is, the duration, cost, and quality. This study includes the changes …

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Rheology Of Superabsorbent Polymer-Modified And Basalt Fiber-Reinforced Cement Paste With Silica Fume: Response Surface Methodology, Hasan Dilbas Apr 2025

Rheology Of Superabsorbent Polymer-Modified And Basalt Fiber-Reinforced Cement Paste With Silica Fume: Response Surface Methodology, Hasan Dilbas

Journal of Sustainable Construction Materials and Technologies

A composite's rheology can be changed by adding superabsorbent polymer (SAP) and basalt fibers and using silica fume. This study aimed to investigate the effects of these components on the viscosity and shear stress parameters of the paste. The proportions of the components were varied, with SAP content ranging from 0.01% to 0.03%, basalt fiber from 0% to 0.50%, silica fume (micro silica) at 15%, and water content from 0.40 to 0.50. Response surface methodology was used to optimize the mixture proportions, and the rheological properties of the resulting pastes were characterized using a rheometer. Results showed that the addition …

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A Comparative Evaluation Of The Mechanical Properties Of Pet And Polystyrene Modified Asphaltic Concrete Containing Rice Husk Ash Filler., Desmond Ewa, Joseph Ukpata, Anderson Etika, Enang Egbe, Alorye Iduku Apr 2025

A Comparative Evaluation Of The Mechanical Properties Of Pet And Polystyrene Modified Asphaltic Concrete Containing Rice Husk Ash Filler., Desmond Ewa, Joseph Ukpata, Anderson Etika, Enang Egbe, Alorye Iduku

Journal of Sustainable Construction Materials and Technologies

The study evaluated and compared the influence of bitumen modification for sustainable as- phalt using waste plastic (Polyethylene Terephthalate, PET) and waste Polystyrene (PS) at 5–50% modification levels. Rice husk ash (RHA) and desilted sand were used as filler and fine aggregate with crushed granite as coarse aggregate. Tests conducted include; penetration, viscosity, flash point, fire point, specific gravity, ductility and marshal stability test on asphalt. For PET modi- fied-binder a decrease in penetration and ductility was observed while the specific gravity, vis- cosity, flash and fire points of the binder increased. For the PS modified-binder, the penetration, ductility, viscosity …

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Use Of Scm In Manufacturing The Compressed Brick Optimizing Embodied Energy And Carbon Emission, Tejas Joshı, Hasan Rangwala, Apurav Prajapatı Apr 2025

Use Of Scm In Manufacturing The Compressed Brick Optimizing Embodied Energy And Carbon Emission, Tejas Joshı, Hasan Rangwala, Apurav Prajapatı

Journal of Sustainable Construction Materials and Technologies

Brick is one of the most used building materials in masonry construction. Conventionally burnt clay bricks are used. These bricks are manufactured from clay and burnt in a kiln at a higher temperature. This results in a very high amount of CO2 emission and has high embodied energy, which highly affects the environment. Compressed bricks are one of the sustainable solutions to overcome these issues of high CO2 emission and embodied energy. Adopting sustainable alter- natives, such as compressed bricks incorporating supplementary cementitious materials or envi- ronmentally friendly brick manufacturing processes, can help mitigate these issues and promote more sustainable …

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Effect Of Calcination On The Physical, Chemical, Morphological, And Cementitious Properties Of Red Mud, Venkatesh Chava, Sonali Sri Durga Chereddy Apr 2025

Effect Of Calcination On The Physical, Chemical, Morphological, And Cementitious Properties Of Red Mud, Venkatesh Chava, Sonali Sri Durga Chereddy

Journal of Sustainable Construction Materials and Technologies

Red mud (RM), a by-product of aluminum production, poses environmental concerns with its disposal. This study explored calcining RM at 600 °C for 0–6 hours to utilize it as a cement substitute. Calcination up to 2 hours decreased particle size and increased surface area due to moisture loss, while further calcination reversed these effects. XRF analysis showed high Fe2O3, Al2O3, SiO2 contents. XRD revealed goethite transformed to hematite and gibbsite to alumina. SEM images displayed a loose then denser structure over time. 10% calcined RM incorporated into cement showed 2-hour calcined RM exhibited optimal properties, including high strength (46.27 MPa) …

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Mechanical, Freeze-Thaw, And Sorptivity Properties Of Mortars Prepared With Different Cement Types And Waste Marble Powder, Zinnur Çelik, Pasi̇nler Meslek Yüksekokulu, Rumeysa Gürgöze, Ahmet Ferhat Bingöl Apr 2025

Mechanical, Freeze-Thaw, And Sorptivity Properties Of Mortars Prepared With Different Cement Types And Waste Marble Powder, Zinnur Çelik, Pasi̇nler Meslek Yüksekokulu, Rumeysa Gürgöze, Ahmet Ferhat Bingöl

Journal of Sustainable Construction Materials and Technologies

The cement production process contributes significantly to CO2 gas emissions and environ- mental pollution. To reduce this adverse effect, the substitution of waste marble powder as a cement additive was investigated. In this study, the properties of mortar specimens were analyzed by using waste marble powder as a partial substitute for three different cement types: CEM I 42.5R Ordinary Portland Cement (OPC), CEM II/B-L 42.5R White Cement (WC) and CA-40 Calcium Aluminate Cement (CAC). Waste marble powder has been replaced with ce- ment at 5%, 10%, and 15%. The compressive and flexural strength, capillary water absorption, and sorptivity values of …

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A Region-Based Criterion Weighting Approach For The Assessment Of Post-Disaster Shelters, Betül Kavaklı, Savaş Ekinci Apr 2025

A Region-Based Criterion Weighting Approach For The Assessment Of Post-Disaster Shelters, Betül Kavaklı, Savaş Ekinci

Journal of Sustainable Construction Materials and Technologies

The need for shelter after disasters is a common issue, and its planning should occur during the risk management phase, not in the post-disaster process. Following the initial few weeks of emergency aid, the rehabilitation phase comes into play, encompassing the period spent in tem- porary housing units until a transition to permanent housing is achieved. Like the emergency aid phase, this phase cannot be sustained solely by emergency shelter tents due to its extended duration, which is shorter than the time required to construct permanent housing. Specific de- signs suited to the rehabilitation phase are necessary. However, many post-disaster …

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A Comparative Study On The Use Of Waste Brick And Glass In Cement Mortars And Their Effects On Strength Properties, Hasan Dilek, Pınar Akpınar Apr 2025

A Comparative Study On The Use Of Waste Brick And Glass In Cement Mortars And Their Effects On Strength Properties, Hasan Dilek, Pınar Akpınar

Journal of Sustainable Construction Materials and Technologies

Sustainable development of the construction industry should use recycled materials to the great- est extent to reduce natural hazards due to the increased accumulation of waste and the deple- tion of natural resources. However, engineering applications using waste materials are always expected to perform satisfactorily. In this aspect, detailed and systematically carried out experi- mental studies are critical in selecting the type and the quantities of waste materials that will be recycled through their use within engineering applications. This study provides systematically produced experimental data on compressive and flexural strength performance to quantitatively compare the effects of using different percentages …

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Thermophysical Characterization Of Concrete Reinforced With Baobab Trunk Fibers (Adansonia Digitata L.) For Thermal Insulation Of Buildings, Alphousseyni Ghabo, Pape Moussa Touré, Younouss Diéye, Vincent Sambou Apr 2025

Thermophysical Characterization Of Concrete Reinforced With Baobab Trunk Fibers (Adansonia Digitata L.) For Thermal Insulation Of Buildings, Alphousseyni Ghabo, Pape Moussa Touré, Younouss Diéye, Vincent Sambou

Journal of Sustainable Construction Materials and Technologies

This work deals with characterizing concrete based on baobab trunk fibers for thermal in- sulation in buildings. The aim is to study the effect of the fiber content and the type of fiber treatment on the hygroscopic and thermo-physical properties of the concrete. Therefore, two types of treatment were carried out: an alkaline treatment and a thermo-alkaline treatment. Hygroscopic test results (34.25% to 54.92% for fiber content ranging from 14% to 28%) show that adding fibers to concrete makes them more sensitive to water. However, thermochemical treatment of the fibers reduces this water sensitivity. The thermal conductivities of concrete range …

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Performance Of Superabsorbent Polymer As Admixture In Hollow Concrete Blocks, Phoebe Love Candano, Kate Rose Elorde, Irl Rica Ann Mejos, Rhoe James Cabada, Val Irvin Mabayo Apr 2025

Performance Of Superabsorbent Polymer As Admixture In Hollow Concrete Blocks, Phoebe Love Candano, Kate Rose Elorde, Irl Rica Ann Mejos, Rhoe James Cabada, Val Irvin Mabayo

Journal of Sustainable Construction Materials and Technologies

This study investigates the efficacy of superabsorbent polymer (SAP) waste as an admixture in producing hollow concrete blocks. Using the central composite design (CCD) of the response surface methodology (RSM), the concrete blocks were created by adjusting the SAP percentage from 0.05% to 0.25%, with a constant amount of cement and sand ratios ranging from 2.00 to 4.00. After 28 days of curing, the blocks were evaluated for their compressive strength, density, and water absorption capacity. Analysis of Variance (ANOVA) was used to analyze the data. The results showed that the created hollow concrete blocks at optimum condition exceeded the …

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An Architectural Query Of Anthropocene Era: Planned Obsolescence, H.Gül Aydın, Emel Birer Apr 2025

An Architectural Query Of Anthropocene Era: Planned Obsolescence, H.Gül Aydın, Emel Birer

Journal of Sustainable Construction Materials and Technologies

After Modernity, the human has become the subject, and the world redefined by the human has turned into a painting. However, the efforts of human subjectivity to reveal the world in the Anthropocene Era, with negative practices such as the “planned obsolescence theory,” which is the research subject, even prepares for the end of its existence. According to the research hypothesis evaluated through the theory’s effect on architectural problems, “secular- ization should take place against planned obsolete architecture.” The research aims to show that positive feedback can be provided in society and ecology by reversing architectural consump- tion. It is …

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