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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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Mechanical Behavior Of Large-Diameter Pipe Elbows Under Low-Cyclic Loading, Ercan Şerif Kaya Apr 2025

Mechanical Behavior Of Large-Diameter Pipe Elbows Under Low-Cyclic Loading, Ercan Şerif Kaya

Journal of Sustainable Construction Materials and Technologies

Large-diameter steel pipes are often used for transmitting and distributing water, gas, and oil products from the source to the end user. These pipelines are mainly oriented by using pipe el- bows due to their high flexibility along their routes. It is important to understand the mechani- cal behavior of these critical infrastructure components to promote material sustainability. For this purpose, a rigorous 3D finite element model is employed to investigate the mechanical behavior of large-diameter pipe elbows with varying elbow angles such as 90°, 60°, and 30°. Moreover, geometrical and material nonlinearities capture the pipes’ ratcheting behavior even under …

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The Influence Of Microwave Curing On The Strength Of Silica Fume-Added Fly Ash-Based Geopolymer Mortars, Berivan Yılmazer Polat Apr 2025

The Influence Of Microwave Curing On The Strength Of Silica Fume-Added Fly Ash-Based Geopolymer Mortars, Berivan Yılmazer Polat

Journal of Sustainable Construction Materials and Technologies

Geopolymer concretes a substitute for traditional Portland cement as a more environmentally sustainable alternative. In addition, one of the most significant advantages of geopolymer concrete is the high setting speed that can be achieved with thermal curing, that is, the short curing period. Research on geopolymer concrete has focused on curing, where curing is usually done with conventional ovens. Microwave curing initiates heat generation at the molecular level, which results in a minimal heat increase on the surface of the specimens compared to traditional thermal curing methods. In addition, it provides internal, rapid, and homogeneous heating and rapid strength development. …

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Assessment Of A New Rigid Wall Permeameter For The Slurry Like Barrier Materials: Zeolite Example, Gökhan Çevikbilen Apr 2025

Assessment Of A New Rigid Wall Permeameter For The Slurry Like Barrier Materials: Zeolite Example, Gökhan Çevikbilen

Journal of Sustainable Construction Materials and Technologies

Areas vulnerable to catastrophic disasters such as hurricane, landslide and earthquake require ready and sustainable solutions for the post-pollution scenarios. Clinoptilolite type zeolite re- sources of Türkiye can serve economical and sustainable solutions as a quick response. While the studies on compacted zeolite-bentonite mixture at optimum water content for the landfill liners applications or dry zeolite-sand mixtures in permeable reactive barrier (PRB)s are com- mon, the slurry form of zeolite emplacement at subsurface reactive barriers has not received an attention by the researchers. In this context, this experimental study presents the prelimi- nary findings on one-dimensional consolidation and hydraulic conductivity …

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An Analysis Of The Effectiveness Of New Generation Self-Levelling Lightweight Composite Screed For Underfloor Heating Systems, Şevket Onur Kalkan, Lütfullah Gündüz Apr 2025

An Analysis Of The Effectiveness Of New Generation Self-Levelling Lightweight Composite Screed For Underfloor Heating Systems, Şevket Onur Kalkan, Lütfullah Gündüz

Journal of Sustainable Construction Materials and Technologies

Energy saving has become a significant concern in recent years due to increasing carbon emis- sions and environmental pollution. When examined from a global perspective, it is known that the energy consumed for heating and cooling of buildings is relatively high. In this regard, researchers attach great importance to energy efficiency issues. In recent years, an issue that has been given priority in heating buildings more efficiently is underfloor heating systems. Underfloor heating systems are composite structures of slab concrete, insulation material, hot water pipes, and screed. Here, the thermal performance of the screed is vital as the hot water …

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Achieving Sustainability In Nigerian Households: Investigating Factors Impacting Energy Efficiency Practices, Hussaini Mato, Yahaya Hassan Labaran, Dipanjan Mukherjee, Gaurav Saini, Mahmoud Murtala Farouq Apr 2025

Achieving Sustainability In Nigerian Households: Investigating Factors Impacting Energy Efficiency Practices, Hussaini Mato, Yahaya Hassan Labaran, Dipanjan Mukherjee, Gaurav Saini, Mahmoud Murtala Farouq

Journal of Sustainable Construction Materials and Technologies

The looming global energy crisis of the 21st century is predicted to worsen as building energy consumption is expected to rise by 50% by 2060. Investing in energy-efficient technologies and reducing carbon emissions is essential to combat this crisis. To this end, this paper delves into the complex issue of energy-efficient building practices in Nigerian households and how they can help curb carbon emissions. Using a statistical method known as the Relative Impor- tance Index (RII), we analyzed nine key factors that influence a building’s energy efficiency. The research revealed that government oversight, support, and financial and technical assis- tance …

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Energy Demand Reduction For Nigeria Housing Stock Through Innovative Materials, Methods And Technologies, Oluwafemi Akande, Chioma Emechebe, Jonam Lembi, Joy Nwokorie Apr 2025

Energy Demand Reduction For Nigeria Housing Stock Through Innovative Materials, Methods And Technologies, Oluwafemi Akande, Chioma Emechebe, Jonam Lembi, Joy Nwokorie

Journal of Sustainable Construction Materials and Technologies

Energy utilisation has recently become a highly sought-after commodity on a global scale. This situation is not limited to Nigeria, where the national grid’s supply of electricity has been severely inadequate. This has hampered the country’s ability to meet the mounting needs of its large population and expanding economy. Aside from the global challenges of rising energy costs and environmental disasters, a number of factors such as a lack of interest in indigenous building technologies and materials have contributed to the Nigerian construction industry’s slow pace of meeting energy demand and achieving energy efficiency. This study investigates the possibility of …

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Acoustic Property Of Nbrri Interlocking Compressed Stabilized Earth Blocks (Icseb): A Sustainable Alternative For Building Materials, Bakam Vision A, Mbimda Ali Mbishida, Timothy Danjuma Apr 2025

Acoustic Property Of Nbrri Interlocking Compressed Stabilized Earth Blocks (Icseb): A Sustainable Alternative For Building Materials, Bakam Vision A, Mbimda Ali Mbishida, Timothy Danjuma

Journal of Sustainable Construction Materials and Technologies

This study uses a tested laterite soil composition to investigate the acoustic properties of interlocking compressive stabilized earth blocks (ICSEBs) produced by the Nigerian Building and Road Research Institute (NBRRI). The laterite samples comprised 40.75% fines (silt-clay), 48.65% fine/medium/coarse, and 10.6% fine gravel. The ICSEBs produced from this composition were evaluated for their sound absorption coefficient values at octave bands of 500 Hz, 1000 Hz, 2000 Hz, and 4000 Hz. The results demonstrate that the ICSEBs exhibit favorable acoustic insulation properties, with sound absorption coefficients ranging from 0.71 to 0.99 at the tested frequencies. Comparative analysis with commonly used materials, …

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Effects Of Bamboo Leaf Ash On Alkali-Silica Reaction In Concrete, Catherine Mayowa Ikumapayı, Oluwaseun Jegede Apr 2025

Effects Of Bamboo Leaf Ash On Alkali-Silica Reaction In Concrete, Catherine Mayowa Ikumapayı, Oluwaseun Jegede

Journal of Sustainable Construction Materials and Technologies

The construction industry is generally faced with so many challenges of which deterioration in concrete structures caused by Alkali-silica reaction (ASR) is one of the pressing challenges. This reaction induces expansion in concrete, resulting in its eventual cracking and subsequent failure. Research direction is being geared towards obtaining properties of pozzolanic concrete of recently discovered different biogenic pozzolans such as bamboo leaf ash (BLA). BLA has been proven to be acceptable in terms of compressive strength and some other properties but few researches have been performed on the impacts of ASR on BLA concrete structures. This research work focuses on …

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Cost Analysis Of Insulation Materials Used To Increase Energy Performance In Buildings With Net Present Value Method, Ahunur Aşıkoğlu Apr 2025

Cost Analysis Of Insulation Materials Used To Increase Energy Performance In Buildings With Net Present Value Method, Ahunur Aşıkoğlu

Journal of Sustainable Construction Materials and Technologies

Today, producing solutions for the effective and efficient use of energy resources is among the priority areas in almost every sector. In terms of energy consumption, each solution developed in the building sector significantly reduces total energy consumption. In this study, different types of insulation materials used in walls and roofs were investigated in terms of cost-effectiveness to improve the energy performance of a building located in the 1st-degree day zone in Türkiye. Four commonly preferred insulation materials for walls and roofs were tested at specific thicknesses. The Design-Builder simulation program simulated scenarios for the specified thicknesses, and energy consumption …

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Synthesis And Characterization Of Bentonite Based Zinc Complexes, Gülsüm Ece Anavatan, Elif Ant Bursalı, Mürüvvet Yurdakoç Apr 2025

Synthesis And Characterization Of Bentonite Based Zinc Complexes, Gülsüm Ece Anavatan, Elif Ant Bursalı, Mürüvvet Yurdakoç

Journal of Sustainable Construction Materials and Technologies

In chemical reactions, the use of environmentally friendly catalysts obtained by transporting transition metals on solid or polymer carrier materials has become quite common recently. Studies in which zinc complexes are used as homogeneous and heterogeneous catalysts are frequently encountered in the literature. In addition to many advantages of homogeneous catalysts, disadvantages include difficulty separating from the reaction medium, recycling, and limited chemical-thermal stability. Solving problems can be solved by using solid catalyst sup-port materials and transferring the active ingredients to these materials. Therefore, catalysts prepared by transporting transition metal complexes onto solid supports have become interesting for researchers. Natural …

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Strengthening Of Rc Frames With Infill Walls Using High Strength Lightweight Concrete Panels, Hakan Koman Apr 2025

Strengthening Of Rc Frames With Infill Walls Using High Strength Lightweight Concrete Panels, Hakan Koman

Journal of Sustainable Construction Materials and Technologies

This study proposed a practical seismic retrofit method for RC frames. For this purpose, a quasi-static loading was applied to 8 RC frames in finite element analysis software, Abaqus, and frames were pushed 45 mm laterally. High-strength fiber-reinforced lightweight concrete panels strengthened infill walls inside the RC frames. To apply them to the walls, epoxy binder and polyurethane binder were used, and their behavior was compared. Using panels increased the lateral load capacity of the whole frame according to the numerical analysis performed with Abaqus. In the worst case, the retrofitted frame carried approximately two times the traditionally infilled frame's …

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Timeline Approach For Antimicrobial Paints Applied On Surfaces, Halit Coza Apr 2025

Timeline Approach For Antimicrobial Paints Applied On Surfaces, Halit Coza

Journal of Sustainable Construction Materials and Technologies

Microbial growth in man-made constructions is a planetary problem. Contaminated surfaces can rapidly spread dangerous infectious illnesses, especially in public places. A few microbes can quickly multiply into millions, especially under current circumstances. A hygienic sur- face is defined as a component that inhibits micro-population increase. Meanwhile, the use of biocides is expanding, as is research into their antibacterial characteristics and components. There are now various antimicrobial substrates on the market. It is worthwhile to investigate the efficacy and precision of these products. In this paper, an experiment has been made on six different wall paints, which are promoted as …

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Triggering Corporate Sustainable Performance In Construction Sector Through Green Training: Moderating Effect Of Barrier In Construction Management, Imran Warıs, Ilayda Ulku Apr 2025

Triggering Corporate Sustainable Performance In Construction Sector Through Green Training: Moderating Effect Of Barrier In Construction Management, Imran Warıs, Ilayda Ulku

Journal of Sustainable Construction Materials and Technologies

Construction barrier plays a significant but negative role-play between green training and corporate sustainability performance due to limited resources. The research question in this study is to explore the relationship between green training and sustainable performance in the construction industry, while also considering the moderating role of construction barriers. This study gives extensive knowledge of green training and corporate sustainability performance. Data is obtained from 225 employees using a convenience sampling technique from the construction sector. The research employed SPSS/PROCESS and follows a cross-sectional research design. Study findings show green training is an antecedent of the sustainable performance of the …

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A Review On Blockchain Operations In Construction Management, Bassant Sayed, Hasan Volkan Oral Apr 2025

A Review On Blockchain Operations In Construction Management, Bassant Sayed, Hasan Volkan Oral

Journal of Sustainable Construction Materials and Technologies

This study investigates the important role that the blockchain plays to manage the information about who did what and when and hence provides a strong base for any legal potential conflicts. Blockchain technology permits you to distribute, encrypt, and secure the records of digital transactions. In addition, bitcoin and other cryptocurrencies are encompassed in it. Even though the construction industry has traditionally been a late user of innovative technology compared to other sectors of the economy, it faces various hurdles in terms of trust, accessibility, information sharing, and process automation. As a result, stakeholders, clients, subcontractors, contractors, and suppliers have …

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Synthesis Of Macrocyclization Cyclophanes And Their Metal Complexes, Characterization And Antimicrobial Activity, Murat Turkyilmaz, Murat Dönmez, Murat Ates Apr 2025

Synthesis Of Macrocyclization Cyclophanes And Their Metal Complexes, Characterization And Antimicrobial Activity, Murat Turkyilmaz, Murat Dönmez, Murat Ates

Journal of Sustainable Construction Materials and Technologies

Due to their chemical properties, cyclophane-type compounds constitute an interesting organic chemistry class. In the structure of all cyclic compounds, macrocyclization is the most critical issue for high-efficiency synthesis. Especially with a small cyclophane structure, the experimental steps are more complicated than with a prominent cyclophane structure. In this manuscript, three different material groups were applied to synthesize silver cyclophane compounds for smart drug properties. In the first material group, 5,6-dimetil-1H-benzo[d] imidazole (1) and 2,6-bis(chloromethyl)pyridine (2) were reacted to form 5,6-dimethyl-1- ((6-((5,6-dimethyl-1H-benzo[d]imidazole-1-il)methyl)pyridine-2-il)methyl)-1H-benzo[d] imidazole compound (3). In the second material group, ethyl 2-bromoacetate (4) reacted to different nitrogen atoms of the …

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Comparative Evaluation Of Mechanical Performance Of Steel Slag And Earthen Granular Aggregates, Aslı Yalçın Dayıoğlu, Mustafa Hatipoğlu, Ahmet Aydilek Apr 2025

Comparative Evaluation Of Mechanical Performance Of Steel Slag And Earthen Granular Aggregates, Aslı Yalçın Dayıoğlu, Mustafa Hatipoğlu, Ahmet Aydilek

Journal of Sustainable Construction Materials and Technologies

The diminishing quantity of natural resources has resulted in a search for alternative materials. Reusing industrial by-products, such as steel slag, provides opportunities for sustainable highway construction practices due to the valuable space they occupy and the potential environmental impacts when they are stockpiled. In this paper, the mechanical suitability of steel slag as an unbound highway aggregate is investigated, and its performance is compared with that of traditional graded aggregate base (GAB) materials. In order to compare the behavior, three steel slag samples with different aging properties and five aggregate samples from different quarries were employed. The results indicate …

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Current Construction And Demolition Waste Management Strategies For Philippine Construction Sector – A Systematic Literature Review, Erold Dimaculangan Apr 2025

Current Construction And Demolition Waste Management Strategies For Philippine Construction Sector – A Systematic Literature Review, Erold Dimaculangan

Journal of Sustainable Construction Materials and Technologies

The construction industry continues to be one of the primary drivers of a country's economic progress. As of 2022, the Philippines’ construction sector had an annual growth rate of 9.2% and continues to increase due to the Build! Build! Build! (BBB) program. However, the construction sector is globally known for regularly consuming more raw materials, resulting in natural resource scarcity and environmental implications. Construction activities also generated a massive volume of construction waste from construction, demolition, and renovation. The need to impose construction and demolition waste (CDW) management strategies and policies in all stages of construction is crucial in attaining …

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Use Of Pumice Aggregate In Cementitious Rheoplastic Lightweight Concrete, Lütfullah Gündüz, Şevket Onur Kalkan Apr 2025

Use Of Pumice Aggregate In Cementitious Rheoplastic Lightweight Concrete, Lütfullah Gündüz, Şevket Onur Kalkan

Journal of Sustainable Construction Materials and Technologies

Rheoplastic lightweight concrete (RLC) is generally designed for pumping applications as fluid concrete free from segregation. Concrete is produced using polymeric admixtures to enhance concrete workability, strength, drying shrinkage, and durability. This research investigated the suitability of natural porous pumice aggregates in Turkey to obtain rheoplastic lightweight concrete with cement content in normal ranges. To produce and experience rheoplastic concrete mix design data, rheoplastic lightweight concrete mixes were tested with fine pumice aggregate (FPA) and coarse pumice aggregate (CPA) supplied from the Nevşehir region of Turkey. For rheoplastic lightweight concrete with cement contents in the 250 to 400 kg/m3 range, …

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Determination Of Exterior Material In Sustainable Buildings By Value Engineering Method According To Leed Criteria, Şenay Atabay Apr 2025

Determination Of Exterior Material In Sustainable Buildings By Value Engineering Method According To Leed Criteria, Şenay Atabay

Journal of Sustainable Construction Materials and Technologies

Factors such as the rapid depletion of natural resources and environmental pollution enable us to understand the importance of sustainability better today. With the introduction of the concept of sustainability into the construction sector, the design of buildings according to the environmentally friendly “Green Building” approach has come to the forefront, and various certification systems have been developed. Due to these certification systems, various building materials must be used in buildings. However, since many materials are on the market, it is a problem which materials should be preferred according to the green building criteria. Although there are various approaches in …

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Pattern And Filament Optimization For 3d-Printed Reinforcements To Enhance The Flexural Behavior Of Cement-Based Composites, Eren Gödek, Seyfi Şevik, Özgür Özdilli Apr 2025

Pattern And Filament Optimization For 3d-Printed Reinforcements To Enhance The Flexural Behavior Of Cement-Based Composites, Eren Gödek, Seyfi Şevik, Özgür Özdilli

Journal of Sustainable Construction Materials and Technologies

Cement-based materials are the world's most widely utilized construction materials due to their high compressive strength. However, they need reinforcement to withstand direct or indirect tensile forces. This study evaluated the potential use of 3D-printed polymers as an alternative reinforcement in cement-based composites. Polyethylene terephthalate glycol (PETG), Polyamide (PA), and Acrylonitrile butadiene styrene (ABS) based triangular and honeycomb-patterned 3D-printed reinforcements were incorporated into cement-based composites, and their mechanical performances were compared under three-point flexural tests by considering both polymer and pattern type. Both triangular and honeycomb patterns enhanced flexural behavior. Considering all filaments, the honeycomb pattern was found more effective …

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Assessment Of Iron Tailings As Replacement For Fine Aggregate In Engineering Application, Ayodele Owolabı, Gideon Ajiboye, Catherine Ikumapayi, Sunmbo Akande Apr 2025

Assessment Of Iron Tailings As Replacement For Fine Aggregate In Engineering Application, Ayodele Owolabı, Gideon Ajiboye, Catherine Ikumapayi, Sunmbo Akande

Journal of Sustainable Construction Materials and Technologies

This study evaluated the suitability of iron tailings as fine aggregate replacements for engineering applications. This is necessary to find economic usage for the enormous amount of waste from Itakpe mines. The physical properties of specific gravity, bulk density, moisture content, particle size, fineness modulus, and mechanical properties in terms of compressive strength, compaction factor, flexural strength, and relative density of the concrete made with iron tailings were determined. World Health Organization (WHO) standard methods for examining water and wastewater were used to analyze water used for curing the concrete cubes and beams to ascertain toxicity. The result shows the …

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Thermal Conductivity, Abrasion Resistance And Compressive Strength Of End-Of-Life Tire Aggregate Incorporated Concrete, Kasım Mermerdaş, Süleyman İpek, Yusuf Işıker, Alparslan Ulusoy Apr 2025

Thermal Conductivity, Abrasion Resistance And Compressive Strength Of End-Of-Life Tire Aggregate Incorporated Concrete, Kasım Mermerdaş, Süleyman İpek, Yusuf Işıker, Alparslan Ulusoy

Journal of Sustainable Construction Materials and Technologies

Recycling end-of-life tires is a global problem that requires an urgent solution. Storing and preserving these tires is a challenge that delays facing potential problems instead of solving the problem. In this context, recycling waste tires without harming the environment and at low costs has been the focus of many researchers. For several decades, the possibility of grinding these tires to aggregate size for concrete and substituting them with natural aggregate has been the subject of research by scientists working in this field. In this regard, this study aims to experimentally investigate the influence of waste rubber aggregate on some …

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Frp Strengthening Of Rc Structures: Sustainable, Environmental And Structural Evaluations, Ali Cem Yağar, Ceren İnce, Shahram Derogar Apr 2025

Frp Strengthening Of Rc Structures: Sustainable, Environmental And Structural Evaluations, Ali Cem Yağar, Ceren İnce, Shahram Derogar

Journal of Sustainable Construction Materials and Technologies

Strengthening and rehabilitation have been widely implemented for many years to extend the service life of reinforced concrete structures. The paper begins with a comprehensive review of the fiber-reinforced polymers (FRP) utilization on strengthening particularly over the traditional materials formerly used in practice with respect to materials, manufacturing, operation, construction, and maintenance phases, as well as the engineering and environmental performance of such materials. Carbon and Glass FRP, the most frequently used strengthening materials, are particularly designated in the study and are employed to conduct an environmental performance evaluation using the previously published data in the literature. The paper then …

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Fabrication Of Superhydrophilic Teos-Lactic Acid Composite Films And Investigation Of Biofouling Behaviour, Tuğçe Ervan, Mehmet Ali Küçüker, Uğur Cengiz Apr 2025

Fabrication Of Superhydrophilic Teos-Lactic Acid Composite Films And Investigation Of Biofouling Behaviour, Tuğçe Ervan, Mehmet Ali Küçüker, Uğur Cengiz

Journal of Sustainable Construction Materials and Technologies

Phytoplankton and diatom microalgae species cause biofouling by adhering to the surfaces, especially in closed cultivation systems such as tubular photobioreactors. This biofilm formation blocks the sunlight; after harvesting, it is necessary to clean the reactor. This cleaning process causes loss not only for time and finance but also in terms of environmental pollution due to using toxic chemicals and excess water usage. This study aimed to investigate the reduction of the microorganism cell adhesion on the hybrid surface. To succeed in this, the composite surface of tetraethoxysilane (TEOS) and lactic acid (LA) was prepared by the sol-gel process. Then …

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Production And Characterization Of Heat Retardant Fiber-Reinforced Geopolymer Plates, Türkan Gezer, Gürkan Akarken, Uğur Cengiz Apr 2025

Production And Characterization Of Heat Retardant Fiber-Reinforced Geopolymer Plates, Türkan Gezer, Gürkan Akarken, Uğur Cengiz

Journal of Sustainable Construction Materials and Technologies

This paper presents an alternative environment-friendly thermal insulation material for the construction industry. We aimed to produce this building material with superior heat resistance properties and comparable strength to the concrete produced with Ordinary Portland Cement. The primary purpose of the experimental studies is to produce a basic geopolymeric plate and to add cellubor and polypropylene fibers to the geopolymeric mortar. In the next stage, fiber-reinforced plates were prepared, thermal experiments were carried out, and discussions and conclusions were formed according to the results and findings. This study initially produced different types of fiber-based metakaolin plates with high heat resistance. …

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Effects Of Exfoliation Temperature For Vermiculate Aggregates Modified By Sodium Ions On Thermal And Comfort Properties Of A New Generation Cementitious Mortar, Lütfullah Gündüz, Şevket Onur Kalkan Apr 2025

Effects Of Exfoliation Temperature For Vermiculate Aggregates Modified By Sodium Ions On Thermal And Comfort Properties Of A New Generation Cementitious Mortar, Lütfullah Gündüz, Şevket Onur Kalkan

Journal of Sustainable Construction Materials and Technologies

Vermiculite exfoliation is based on the principle when water between the layers evaporate, and the crystal layers spread out pressured by the steam. As a result, elongated, curved particles are formed. The thermal properties of the final product formed are directly related to this exfoliation amount. In this experimental work, exfoliation characteristic of natural vermiculate is studied. A series of experimental analyzes were carried out to examine the expandability of natural vermiculite at different heating temperatures by the Na+ modification method. In addition, the expansion ratios of Na+-modified and unmodified vermiculite samples were analyzed comparatively. Each of the raw and …

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A Review On Selected Durability Parameters On Performance Of Geopolymers Containing Industrial By-Products, Agro- Wastes And Natural Pozzolan, Festus Ngui, Najya Muhammed, Fredrick Mulei Mutunga, Joseph Marangu, Ismael Kithinji Kınotı Apr 2025

A Review On Selected Durability Parameters On Performance Of Geopolymers Containing Industrial By-Products, Agro- Wastes And Natural Pozzolan, Festus Ngui, Najya Muhammed, Fredrick Mulei Mutunga, Joseph Marangu, Ismael Kithinji Kınotı

Journal of Sustainable Construction Materials and Technologies

The applications of geopolymers as cementitious systems are becoming an alternative source of cement daily. The use of potentially suitable aluminosilicate inorganic waste materials incorporated with agro-industrial waste in the production of suitable geopolymer binders has been reported. Calcined clay and some agro-waste ash, such as coconut shells, are examples of aluminosilicate materials that exhibit strong pozzolanic activity because of their high silica-alumina composition. The pozzolanic reaction is primarily caused by the amorphous silica present in properly burned agricultural waste and clay. Based on a variety of available literature on concrete and mortar including geopolymers synthesized from agro-industrial waste, a …

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The Influence Of Anhydrite Iii As Cement Replacement Material In Production Of Lightweight Masonry Blocks For Unreinforced Non-Load Bearing Walls, Şevket Onur Kalkan, Lütfullah Gündüz Apr 2025

The Influence Of Anhydrite Iii As Cement Replacement Material In Production Of Lightweight Masonry Blocks For Unreinforced Non-Load Bearing Walls, Şevket Onur Kalkan, Lütfullah Gündüz

Journal of Sustainable Construction Materials and Technologies

Lightweight cellular hollow concrete (LCHC) block is a type of masonry unit that has excellent thermal and acoustic performance, fire resistance and high weathering resistance, and manufactured by precast technique. This work presents an experimental study, which investigates the effects of volumetric partial replacement of Portland cement by calcium sulfate anhydrite on precast properties, especially hardening time of the products, thermal insulation properties and mechanical properties of the blocks. LCHC block is produced by the mixing of Portland cement (PC), anhydrite III (ANH), expanded perlite (EP), pumice (PU) and calcite (CA) for building applications. The physical and mechanical properties of …

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Influence Of Porosity On The Free Vibration Response Of Sandwich Functionally Graded Porous Beams, Sura Kareem Al-Itbı, Ahmad Reshad Noorı Apr 2025

Influence Of Porosity On The Free Vibration Response Of Sandwich Functionally Graded Porous Beams, Sura Kareem Al-Itbı, Ahmad Reshad Noorı

Journal of Sustainable Construction Materials and Technologies

Functionally graded materials are composite materials used to build a variety of structures. These structures are used in ships industries, marine, automotive, high building structures, energy engineering applications, and many more. The porosity made in these materials may negatively affect some behavior aspects like stiffness, and strength, but it may provide superior performance in other fields like vibration reduction, thermal isolation, energy absorption, and others. In this paper, we will discuss the effect of porosity on the natural frequencies for functionally graded porous (FGP) sandwich beams. The mechanical properties of the FGP sandwich beams are changing with the porosity in …

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