DSpace@ATÜ (Adana Alparslan Türkeş Bilim ve Teknoloji Universiti)
Not a member yet
3463 research outputs found
Sort by
Production of Pt decorated poly(3,4-ethylenedioxythiophene)/ERGO/GCE as an efficient catalyst for methanol oxidation reaction
No full textIn this study, Pt-decorated poly(3,4-ethylenedioxythiophene) (PEDOT) electrocatalyst was uniformly coated electrochemically reduced graphene oxide (ERGO) layer on glassy carbon electrode (GCE) has been created using appropriate procedures to facilitate the implementation of the methanol oxidation reaction (MOR). This multi-layer catalyst was characterized in each production step via Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, field-emission scanning electron microscopy and energy-dispersive x-ray analysis (FESEM-EDX) morphological analysis beside the electrochemical tests. The favorable structures of both ERGO and PEDOT increase conductivity and electrocatalytic activity toward methanol oxidation, which may create a suitable matrix for Pt loading thanks to the formation of much more active centers for methanol electrooxidation. The results demonstrate that the electrochemical surface area (ECSA) of Pt/PEDOT/ERGO/GCE was 39.1 m(2) g(-1), and it has a convenient mass activity (MA with 467 mA mg Pt-1) compared to that of commercial Pt/C. According to chronoamperometric analysis, the current density of Pt/PEDOT/ERGO/GCE was stable during the 1200 s of operation. It demonstrated remarkable stability with a final current density of 4.36 mA cm(-2).Adana Alparslan Turkes~Science and Technology University [21103009]Adana Alparslan Turkes Science and Technology University, Grant/Award Number: 2110300
Molecular dynamics simulation and experimental investigation of mechanical properties of calcium carbonate and graphene reinforced polylactic acid nanocomposites
No full textContextThe use of Molecular Dynamics (MD) simulations to examine the mechanical characteristics of polymer composites reinforced with calcium carbonate (CaCO3) and graphene (GR) is represented in this work. The effects of CaCO3 and GR nanoadditives in polylactic acid (PLA) matrix in different concentrations were evaluated using the results of MD simulations. Experimental analyses have been conducted to validate the results of MD based on the mechanical properties of fabricated nanocomposites, including modulus of elasticity, shear modulus, and Poisson's ratio. The modeling, computation, and analysis of several simulations on the improved mechanical characteristics of PLA/CaCO3 and PLA/GR nanocomposites are introduced and discussed. The results revealed that the addition of GR nanoparticles were more effective in enhancing the mechanical properties of PLA components as compared with that of CaCO3 nanoparticles, as the modulus of elasticity, shear modulus and Poisson's ratio increased by approximately 21%, 17%, and 16% for addition of 3 wt% GR nanoparticles in the PLA matrix, respectively.MethodsThe mechanical behavior of PLA/CaCO3 and PLA/GR nanocomposites have been simulated based on the molecular dynamic technique using material studio (MS) that enabled the analyses of synergy between the polymer molecules and the nanoparticles. Molecular models for a system of nanocomposites were built by embedding the nano-clusters into an amorphous PLA matrix. Nanoparticles have been modeled as spherical nanoclusters of graphite and calcite unit cells. Molecular models of the pure PLA matrix were also developed for comparison. The relaxed systems of MD simulations have been carried out to calculate the mechanical properties of nanocomposites containing 1, 3 and 5 wt% nanofiller contents. To validate the results of the simulations, the PLA/CaCO3 and PLA/GR nanocomposite granules, containing different weight ratios of the nanofillers in the matrix, have been synthesized by melt-blending technique. These granules have been used to produce tensile test samples by injection molding technique, with different fractions of nanoparticles in the matrix, to study the effects of such nanoadditives on the mechanical properties of the PLA nanocomposites.Adana Alparslan Turkes Science and Technology University Scientific Research Coordination Unit [22303001]This work was supported by Adana Alparslan Turkes Science and Technology University Scientific Research Coordination Unit. Project Number: 22303001. This study was produced from the master's thesis of the first author
Valorisation of mango peel and seed wastes in a biologically enriched biscuit assortment
No full textMango is a fruit consumed worldwide, but generates wastes, which have potential to be valorised, because they possess compounds with demonstrated positive implications for the consumer’s health. For this reason, in the present study, biscuits with mango pulp and powders developed from its wastes were developed. The chemical composition was determined for the mango peel, pulp, and seed according to AOAC procedures, but also for the mango biscuit and a reference. The total phenolic content (TPC) was assessed with the Folin–Ciocâlteu method, while the antioxidant potential was tested using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. Titratable acidity and alkalinity were also determined. The textural and colour parameters of the mango-based biscuit were compared with those of a reference. The newly developed product was rich in proteins (7.26%), due to the inclusion of mango peel and seed powders, and presented increased fat content. The mango-based biscuit registered a TPC of 123.90 mg GAE/100 g, while the seed had a higher TPC of 3893.33 mg GAE/100 g. High antioxidant potential was determined for the mango waste ingredients (94.76% RSA DPPH inhibited for the seed and 93.9% RSA DPPH inhibited for the peel), but for the mango-based biscuit the antioxidant potential was lower. The hardness of the mango biscuit was high and the colour was different from that of the reference; thus, more studies regarding an optimal formulation are still necessary
Green building?s heat loss reduction analysis through two novel hybrid approaches
No full textOne of the key reasons for the performance discrepancy between a building's intended usage and the actual operation is Heat Loss, which describes a building's envelope efficiency during in-use circumstances. In this setting, the ANN models' use for energy analysis of green buildings has become more established. This research aims to anticipate the heat loss of green buildings utilizing two artificial neural network-based methodologies (ANN). In particular, TLBO and BBO are used and contrasted. Additionally, RMSE, MAE, and R2 are used to calculate an absolute error for predicting heat loss to gauge the accuracy of the findings. The suggested TLBO-MLP standard is a reliable method with a positive outcome (RMSE = 0.01012 and 0.05216, and R2 = 0.99536 and 0.9651). Also, according to the training error ranges of [-0.0006078, 0.01133] and [-0.00040708, 0.010181] and testing error ranges of [0.0004724, 0.068666] and [0.0021984, 0.057688] for BBO-MLP and TLBO-MLP, respectively, shows that the TLBO-MLP reaches the lower range of error and can predict the heat loss with higher accuracy and it could properly forecast the heat loss of building technologies. Even so, the BBO-MLP standard provides this research with satisfactory performance (R2 = 0.9943 and 0.95175, and RMSE = 0.01122 and 0.06112). To increase the precision of calculating the heat loss of buildings, specifically integrating them with optimization algorithms, further study is required
Privatization of Public Spaces and the Right to the City in the United States
No full textPrivatization of urban public spaces leads to two conflicting positions regarding the private or public rights over a place. This article discusses the problems of urban areas with regard to the privatization of public spaces and the consequent reaction of the citizens to claim their right to the city in various forms of social mobilization. This contestation between citizen and business claims over urban places is analyzed through a historical perspective that traces the development of business role in public policy making, the ways in which business influences policy making process, and their outcomes. We, then, identify three barriers that we regard the strongest in overcoming these problems: (1) lack of inclusive mechanisms, (2) misunderstanding of the right to the city, and (3) privatization of public spaces with neoliberal influences. Lastly, we discuss the role of different stakeholders, such as academics, policy makers, and citizens. The conclusion provides our assessment of this conflict and preference of urban theory schools to strengthen citizen control over urban areas
Spiral-Resonator-Based Frequency Reconfigurable Antenna Design for Sub-6 GHz Applications
No full textThis paper presents a novel frequency reconfigurable antenna design for sub-6 GHz applications, featuring a unique combination of antenna elements and control mechanisms. The antenna is composed of an outer split-ring resonator loaded with an inner spiral resonator, which can be adjusted through the remote control of PIN diode or Single Pole Double Throw (SPDT) switches. The compact antenna, measuring 22 x 16 x 1.6 mm(3), operates in broadband, or tri-band mode depending on the ON/OFF states of switches. The frequency reconfigurability is achieved using two BAR64-02V PIN diodes or two CG2415M6 SPDT switches acting as RF switches. SPDT switches are controlled remotely via Arduino unit. Additionally, the antenna demonstrates an omni-directional radiation pattern, making it suitable for wireless communication systems. Experimental results on an FR-4 substrate validate the numerical calculations, confirming the antenna's performance and superiority over existing alternatives in terms of compactness, wide operating frequency range, and cost-effectiveness. The proposed design holds significant potential for applications in Wi-Fi (IEEE 802.11 a/n/ac), Bluetooth (5 GHz), ISM (5 GHz), 3G (UMTS), 4G (LTE), wireless backhaul (4G and 5G networks), WLAN (IEEE 802.11 a/n/ac/ax), 5G NR n1 band, and Wi-Fi access points due to its small size and easy control mechanism. The antenna can be integrated into various devices, including access points, gateways, smartphones, and IoT kits. This novel frequency reconfigurable antenna design presents a valuable contribution to the field, paving the way for further advancements in wireless communication systems.Scientific Research Projects Unit (BAP) in Adana Alparslan Tuuml;rkes Science and Technology University [21803003]This research received no external funding
Soft-Switching Smart Transformer Design and Application for Photovoltaic Integrated Smart City Power Distribution
No full textSmart city power distributions have become promising technologies to meet the demand for energy in developed countries. However, increase in smart grids causes several power quality problems on the smart grid, in particular, current and voltage harmonic distortions, sudden voltage sag and swells, fault current, and isolation deterioration. Smart transformers are potential solutions to improve the power quality on the electric grid. They present energy efficiency, ensure grid reliability and power flow control, voltage regulation, bidirectional power flow, fault current limiting, harmonic blocking, and galvanic isolation. Therefore, this paper offers an optimal selection of a three-stage (AC-DC-DC-AC) smart transformer model and power control strategy for solar PV power plant integrated smart grids. The topology of the rectifier, isolated bidirectional converter, and inverter has soft-switching features. This enables low conduction loss, low electromagnetic interference (EMI), high efficiency, achievable zero-voltage switching for converters, and zero-current switching for electrical auxiliary systems. Operation strategies of the proposed ST, PWM control, voltage, and current control between converters, including a medium-voltage (MV) high-frequency transformer to realize a 10 kVA, 450 Vdc to 220 Vdc, or 220 Vac ST, are presented. Significantly, the ST prototype achieves 96.7% conversion efficiency thanks to its control strategy, even under unstable power generation conditions from the solar PV plant. Experimental results obtained on the 344 Vac 10.4 A load current validates the dv/dt rate 6.8 kV/us. The dynamic and experimental results of the proposed bidirectional smart transformer demonstrate the success in preventing power quality problems for photovoltaic integrated smart city power distribution.Scientific Project Unit of Adana Alparslan Turkes Science and Technology University; Scientific and Technological Research Council of Turkey; [20803001]; [2210319]This research was supported by the Scientific Project Unit of Adana Alparslan Turkes Science and Technology University (Project Number: 20803001) and the Scientific and Technological Research Council of Turkey (TUBITAK Project Number: 2210319)
Analysis of the structural systems of traditional Antakya houses in the context of physical environmental audit
No full textFen Bilimleri Enstitüsü, Mimarlık Ana Bilim DalıTüm yapıların üretim biçimlerine ve ana sistemini oluşturan malzemelere, bu malzemelerin bağlayıcılarına bağlı olarak bir ömürleri vardır. Yapı ömrü olarak adlandırılan bu kavram iklimsel koşullar, doğal felaketler, yapıyı oluşturan malzemelerin kimyasal ve fiziksel dayanımlarına bağlı olarak yapı ömrünün belirlenmesindeki faktörlerdir. Yapı ömrünü etkileyen bu koşullar, fizyolojik olarak yapıyı zayıflatan, taşıyıcıların etkisini azaltan ve tam olarak belirlenemeyen dış koşullardır. Geleneksel mimarlık ürünleri, asırlar boyunca deneme yanılma yöntemiyle bulunan, yörenin iklim ve doğa koşullarına uygun birtakım çözümlerin o dönemin imkanlarıyla uygulanmasıyla gelişmiştir. Geleneksel mimarlık ya da diğer adıyla vernaküler mimarlık; halkın kendi çevresinden sağladığı malzemeyle, geleneksel teknikleri ve biçimleri kullanarak gerçekleştirdiği bir çeşit anonim mimarlık olarak da tanımlanmaktadır (Hasol, 1998). Tarihi geleneksel Antakya evlerinin yapım sürecinde çevresel koşullar, kültürel yapının da etkisi ile coğrafi bir alan içerisinde gelişen, bir toplumun muhafaza ettiği birçok döneme tanıklık etmiş günümüze kadar ulaşabilmiş yapılardır. Birçok medeniyete ev sahipliği yapan Antakya kentinde oluşan kültür zenginliği bölgenin mimarisine de katkı sunmuştur. Antakya'nın tarihi geleneksel evleri de bu kültür zenginliğinin bir mirasıdır. Antakya'da bulunan tarihi geleneksel evler genellikle halk arasında eski Antakya diye adlandırılan bölgede olup Habib-i Neccar Dağları ile Asi Nehri arasında özellikle Kurtuluş Caddesi üzerinde bulunmaktadır. ''18. ve 19 yy'a ait olan Antakya evleri ile ilgili geçmişte yapılan bazı seyyahların yorumlarına göz atacak olursak; John Macdonald Kinneir'in 1813 tarihli Antakya ziyaretine ilişkin olarak Antakya'daki evlerin Türk usulü olduğunu, evlerin genellikle küçük ve taştan yapılmış sevimli binalar olduğunu belirtmektedir. Genellikle evlerin bahçeleri bulunduğunu, iki katlı bu evlerde odalara ışıkların kemer şeklindeki pencerelerden girdiğini belirtmektedir. James Silk Buckingham'ın 1816 tarihli ziyaretinde evlerin çoğunlukla taş yapılar olup çatılarının tek eğimli olduğu ve kırmızı kiremitle örtülü olduğunu ifade etmektedir. Buckingham'ın notlarında iki katlı evlerin yanı sıra üç katlı evler de olduğu ve evlerin üst katlarının ahşap olduğu belirtilmektedir. La Baron Taylor'un 1830 tarihli beyanatına göre evler az katlı, kerpiç ve antik yapılardan sökülen taşlarla yapıldığı söylenilmektedir. 1835 tarihinde kenti ziyaret eden Lieut-Colonel Chesney çatıları kiremit kaplı karkasları ahşap olan taş binalardan bahsetmektedir. Geçmişten günümüze doğru yaklaştıkça seyyahların Antakya evleri ile ilgili bilgileri ve tanımlamaları da günümüzdeki evlerle örtüşmekte ve benzeşim göstermektedir''(Cengiz, 2014). Antakya Kenti, kültürel yapısı ve etnik çeşitliliğinin sonucu özgün mimarisi ile karşımıza çıkmaktadır. Tarihi geleneksel Antakya evlerinin yapısal sistem hasarları konutlara ciddi zararlar vererek yapı ömrünü kısaltmaktadır hatta yok olmasına neden olmaktadır. Bu yapıların yapısal sistem hasarlarının önüne geçilerek uzun ömürlü ve kalıcı olabilmesi amaçlanmaktadır. Koruma kullanma kararları doğrultusunda önlemler alınıp bu yapıların daha uzun ömürlü olması amacıyla çalışma alanı Antakya kenti olarak seçilmiştir. İncelenen geleneksel yapılar Antakya kentinin 3.derece sit alanı bölgesinde Kurtuluş Caddesi güzergahında bulunmaktadır. Bu yapıların 3.derece sit alanı bölgesinde seçilmiş olmasının sebebi koruma tüzükleri doğrultusunda mevcut yapıların korunması ve değerlendirilmesini sağlayacak çözümler üretmektir. İlk olarak Antakya kent tarihi, kentteki önemli tarihi anıt değeri taşıyan yapılar ve geleneksel Türk evlerinin tipolojik özellikleri, Antakya Kenti için Türk Evi'nin tarihsel gelişim süreci ve yapım sistem kurgusunun incelenmesi planlanmıştır. Antakya tarihi geleneksel evlerinin çevresel koşullar sebebiyle ciddi hasarlar alarak varlığını koruyamadığı görülmüştür. Tarihi konutların devamlılığının sağlanabilmesi amacıyla hasar tespitlerinin yapılıp, yapım sistem kurgusu incelenip elde edilen veriler sonucunda koruma tüzüklerine bağlı kalarak önlemler alınmasına karar verilmiştir. Bu doğrultuda Antakya tarihi geleneksel evlerinin yapım sistemleri ve elemanları ile ilgili olarak yapılmış olan çalışmalar, tüzükler, uluslararası standart ve yönetmelikler incelenmiştir. Her bir yapı ölçeği için arşiv taraması yapılıp, fotoğraf ve yapı ile ilgili bilgilere ulaşılmış, yapı elemanları durum değerlendirmesi amacıyla tahribat nedenleri araştırılmış, rölöveleri alınmış, aletli analizler ve grafiksel raporlar düzenlenmiş, bina kimlik formu oluşturulmuştur. Ayrıca tahribat düzeyini belirten hasar tabloları ile yapı elemanlarının performans analizleri hazırlanmıştır. Yapılan analizler sonucunda geleneksel evlerdeki hasarların çevresel koşullara bağlı olarak yapısal sistemin hasara uğrattığı, yapının zemin suyuna karşı direncini kaybetmesi, kaplama malzemelerinin fiziksel ve kimyasal değişimler sonucu yapıyı koruyamaması sebebiyle kayıplar olduğu öngörülmüştür. Oluşan hasarların yapının taşıyıcı sistemine kadar ciddi hasarlar vererek tahribata yol açtığı öngörülmektedir. Su yalıtımına karşı eksikliğinden dolayı hasara uğrayan yapı elemanlarının tespiti ile koruma önerileri çerçevesinde bir yaklaşım planlanmıştır. Bu yaklaşım doğrultusunda müdahaleye karar vermeden önce, taşıyıcı sistemin ve bileşenlerinin durumu, daha önce yapılmış olan müdahaleleri de kapsayacak şekilde, dikkatle belgelenip ahşap yapıların korunmasına ilişkin koruma kuralları göz önüne alınarak genel ilkelerin uygulanması hedeflenmektedir. Tarihi geleneksel yapıların sürdürülebilirliğinin sağlanması amacı göz önüne alınarak hasarlı yapılar incelenmiştir. İncelenen yapılar bir model çerçevesinde daha çok yapısal sistem hasarları olan tarihi geleneksel yapılara uyarlanarak koruma tüzükleri doğrultusunda çalışmalara katkı sağlanması planlanmıştır. Çalışma sonucunda Antakya geleneksel evlerinin yapısal sistem hasarlarının önüne geçilerek yapıların sürdürülebilirliğinin sağlanması öngörülmüştür. Anahtar Kelimeler: Geleneksel Antakya Evleri, Türk Evleri, Hasar, Nem, Koruma, Tarihi Çevre, AntakyaAll structures have a lifetime depending on the way they are produced, the materials that make up the main system, and the binders of these materials. This concept, which is called building life, is the factors in determining the life of the building depending on climatic conditions, natural disasters, chemical and physical resistance of the materials that make up the building. These conditions that affect the life of the structure are external conditions that weaken the structure physiologically, reduce the effect of the carriers and cannot be determined exactly. Traditional architectural products have developed with the application of some solutions suitable for the climatic and natural conditions of the region, which were found by trial and error method for centuries, with the possibilities of that period. Traditional architecture or vernacular architecture; It is also defined as a kind of anonymous architecture realized by the people using traditional techniques and forms with the materials they obtained from their own environment (Hasol, 1998). Historical traditional houses are structures that have survived to the present day, which have witnessed many periods that a society has preserved and developed in a geographical area with the environmental conditions and the influence of the cultural structure during the construction process. The cultural richness that emerged in the city of Antakya, which has hosted many civilizations, has also contributed to the architecture of the region. The historical and traditional houses of Antakya are also a legacy of this cultural richness. The historical traditional houses in Antakya are generally in the region called old Antakya among the people and are located on the Kurtuluş Street between the Habib-i Neccar Mountains and the Orontes River. ''18. If we take a look at the comments of some travelers made in the past about the Antakya houses belonging to the 19th century; Regarding John Macdonald Kinneir's visit to Antakya in 1813, he states that the houses in Antakya are Turkish style, and the houses are generally small and cute buildings made of stone. He states that generally the houses have gardens, and in these two-storey houses, the lights enter the rooms through arch-shaped windows. James Silk Buckingham, in his 1816 visit, states that the houses are mostly stone structures, with single-pitched roofs and covered with red tiles. In Buckingham's notes, it is stated that there are three-storey houses as well as two-storey houses, and the upper floors of the houses are wooden. According to the statement of La Baron Taylor dated 1830, it is said that the houses were built of low-rise, adobe and stones removed from ancient buildings. Lieut-Colonel Chesney, who visited the city in 1835, talks about stone buildings with tiled roofs and wooden frames. As we approach from the past to the present, the information and descriptions of the travelers about Antakya houses overlap and resemble today's houses"(Cengiz, 2014). The city of Antakya appears with its unique architecture as a result of its cultural structure and ethnic diversity. Structural system damages of historical traditional houses cause serious damage to the houses, shortening the life of the building and even causing its destruction. It is aimed that these structures will be long-lasting and permanent by preventing structural system damage. The study area was chosen as the city of Antakya in order to take precautions in line with the conservation use decisions and to ensure that these structures have a longer lifespan. The traditional structures examined are located in the 3rd degree protected area of the city of Antakya, on the route of Kurtuluş Street. The reason why these structures have been selected in the 3rd degree protected area is to produce solutions that will ensure the protection and evaluation of existing structures in line with the conservation regulations. First of all, it is planned to examine the city history of Antakya, the buildings with important historical monument value in the city and the typological features of traditional houses, the historical development process of the Turkish House for the city of Antakya and the construction system setup. It has been observed that the historical traditional houses of Antakya could not maintain their existence by taking serious damages due to environmental conditions. In order to ensure the continuity of the historical residences, it was decided to take measures by adhering to the protection regulations as a result of the damage assessments, the construction system setup and the data obtained. In this direction, studies, statutes, international standards and regulations related to the construction systems and elements of Antakya historical traditional houses have been examined. For each building scale, archive scanning was carried out, photographs and information about the building were obtained, the causes of destruction were investigated for the purpose of assessing the condition of the building elements, their surveys were taken, instrument analyzes and graphical reports were prepared, and a building identity form was created. In addition, damage tables indicating the level of destruction and performance analyzes of building elements were prepared. As a result of the analyzes made, the damage to the structural system due to environmental conditions in traditional houses, the loss of resistance of the building against ground water, the physical and chemical changes of the coating materials. Keywords: Building Physics, Turkish Houses, Thermal Effects, Moisture Effect, Wood Frame Technique, Protection, Antaky
The Relationship Between Digital Game Addiction, Executive Functions and Impulsivity in Early Adolescents
No full textThe current study was largely concerned with the association between digital game addiction, specific cognitive functions especially, three components of executive function (inhibition, set shifting and working memory) and impulsivity in early adolescents. Sampling consisted of 6th (55.1%) and 7th (44.9%) grade middle school students (36 females and 62 males). The mean age of the students was determined as 12.35 years (SD =0.75; age range, 10–14 years). Digital game addiction, inhibition, set shifting, working memory, and impulsivity were evaluated via Digital Game Addiction Scale (DGAS), Stroop Test TBAG Form, Trail Making Test (TMT), Wechsler Memory Scale-III Letter-Number Sequencing Subtest (WMS–III/LNS) and Short Form of Barratt Impulsiveness Scale (BIS-11-SF), respectively. According to the correlation analysis results, selective and complex attention, inhibition, set shifting, and impulse control were diminished with increasing digital game addiction. There is no significant relationship between digital game addiction and working memory. Consistent with the correlation analysis, structural equation model results revealed that digital game addiction significantly predicts inhibition, set shifting and impulsivity [x2 (15, N = 98) = 7.476, p > 0.5; x2/df = 1.246; RMSEA = .05; CFI = .95; GFI = .97]. As a results, it can be concluded that digital game addiction should be controlled in order to manage impulses and develop high-capacity cognitive skills in children
Glass-ceramic foams produced from zeolite-poor rock (Tokaj)
No full textThis study evaluated the possibility of producing innovative glass-ceramic foams from zeolite-poor rock (Tokaj, Hungary) using alkali-activation and reactive sintering techniques. The composition and morphology of the samples were studied using X-ray diffraction, X-ray fluorescence, scanning electron microscope, and computed tomography techniques. The influence of various sintering temperatures on glass-ceramic foams was examined. It has been observed that zeolite-poor rock has a self-foaming capability. The heat treatment temperature affects the pore size and distribution as well as the technical characteristics of the obtained samples. The resulting glass-ceramic foams possess moderate thermal conductivity ranging from 0.11 to 0.17 W mK-1 and good compressive strength (1.5-4.4 MPa). The produced samples might be utilized for thermal insulation, which would have both economic and environmental advantages. © 2022 The Author(s).European Commission, EC; European Social Fund, ES