Article
Construction & Building Technology
Baris Bayrak, Ahmet Benli, Haluk Gorkem Alcan, Oguzhan Celebi, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The objective of this investigation was to study the effects of various factors on the properties of geopolymer composites (GC), including curing temperature, cement clinker aggregate, waste colemanite (WCM), and waste marble powder (WMP). The investigation focused on the physico-mechanical properties, microstructure, and high-temperature resistance of the GC. The study found that the mixture with 100 kg/m3 of WMP and 750 kg/m3 of CCA exhibited the highest compressive strength, and the compressive strength of the samples increased significantly at higher curing temperatures and with increased WMP content. The microstructure analysis revealed the potential of the GC for various applications.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Saeid Ghorbani, Mohammad Mohammadi-Khatami, Sahar Ghorbani, Amir Elmi, Minoo Farzan, Vala Soleimani, Mohammadamin Negahban, Vivian W. Y. Tam, Mohammadreza Tavakkolizadeh
Summary: This research investigated the effects of marble waste dust (MWD) and magnetized water (MW) on the properties of mortar mixes, with results showing that MW improved the fresh, hardened, and durability properties of the mortar mixes. Mortar mixes with 10% MWD as a cement replacement displayed the most significant improvement in performance compared to other mixes.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Hyeju Kim, Raju Sharma, Junjie Pei, Jeong Gook Jang
Summary: This study investigates the effect of CO2 curing on the carbonation degree, CO2 uptake, mechanical and physicochemical properties of mineral admixtures blended with belite-rich cement. The results show that the highest compressive strength is achieved by blending pulverized coal combustion ash with belite-rich cement under CO2 curing. Circulating fluidized bed combustion ash is comparable to pulverized coal combustion ash in improving the mechanical and physicochemical properties. TG analysis reveals that blending circulating fluidized bed combustion ash with belite-rich cement is excellent for promoting carbonation and CO2 uptake. Si-29 NMR confirms the potential of pulverized coal combustion ash and circulating fluidized bed combustion ash in enhancing the reactivity of belite-rich cement under CO2 curing.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Environmental Sciences
P. Kechagia, D. Koutroumpi, G. Bartzas, A. Peppas, M. Samouhos, S. Deligiannis, P. E. Tsakiridis
Summary: This study investigated the physicomechanical properties and hydration development of ternary blended cements composed of waste marble dust (WMD) and soda lime recycled glass (SLRG). Results showed that WMD and SLRG can be used as cementitious additions for cement replacement.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Construction & Building Technology
Aamar Danish, Mohammad Ali Mosaberpanah, Muhammad Usama Salim, Roman Fediuk, Muhammad Fawad Rashid, Rana Muhammad Waqas
Summary: The article critically discusses the use of marble dust and granite dust as cement replacements to reduce environmental pollution and costs, while also addressing sustainable development and challenges. Researchers worldwide were surveyed on the benefits and challenges of incorporating MD/GD into cementitious composites, with a framework presented for successful development of cementitious materials with MD/GD.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Thermodynamics
Nordine Leklou, Shaswat Kumar Das
Summary: This work investigated the effect of curing temperature on metakaolin-cement mortar blend. Mortar mixtures with different substitution rates of metakaolin at four different constant curing temperatures were studied. Isothermal calorimetry and compressive strength tests were performed and the results showed that higher curing temperatures accelerated the hydration rate and earlier appearance of the main peak of hydration. The increase in metakaolin dosage improved the reactivity of the binder at all temperatures considered.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Environmental Sciences
Tuna Aydin
Summary: The study demonstrates that adding cement waste raw mix dust can enhance the physical and mechanical properties of ceramic wall tiles, while marble dust can serve as an alternative source of CaCO3. The application of cement waste raw mix dust in wall tile production shows promise for improving the product quality.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2021)
Article
Engineering, Multidisciplinary
Tej Singh
Summary: This study manufactured automotive brake friction composites based on combinations of barium sulphate and cement by-pass dust (CBPD), and examined their tribological behavior on a Krauss machine according to European regulations. It was found that the friction coefficient increased with increasing CBPD content up to 30 wt% and then decreased above 30 wt% CBPD and below 20 wt% barium sulphate contents. Conversely, friction fluctuations and wear increased with decreasing barium sulphate and increasing CBPD contents. The analysis also revealed that fade and recovery response determine the overall frictional performance, while material integrity and fade response are significant determinants of wear performance.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Crystallography
Dalal A. A. Aloraini, Mohamed Elsafi, Aljawhara H. H. Almuqrin, Sabina Yasmin, M. I. Sayyed
Summary: In this study, the effect of incorporating micro- and nano-sized barium oxide (BaO) on the radiation-shielding properties of red clay tiles mixed with waste marble was investigated. The results showed that the red clay/waste marble composites doped with nano-sized BaO exhibited better radiation-shielding properties compared to the ones doped with micro-sized BaO. Increasing the amount of BaO deposited onto the red clay mixed-waste marble also improved the radiation-shielding properties. This study demonstrates that adjusting the concentration of BaO is a viable strategy for enhancing the radiation attenuation properties of red clay tiles.
Article
Construction & Building Technology
Yuli Wang, Shuqiong Luo, Lei Yang, Yahong Ding
Summary: The research shows that microwave curing can significantly increase the early strength of the FA/PC blend with 50% PC replaced by FA. The pore structure of the hardened paste under microwave curing is better than under thermal curing. Therefore, microwave is a more environmentally friendly alternative heating source for curing the FA/PC blend.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Bilal Balun, Mehmet Karatas
Summary: The study investigates the performance of pumice-based alkali activated materials under different curing conditions, indicating that the addition of OPC enhances compressive strength, with the optimal condition being curing at 100 degrees C for 72 hours. Samples containing OPC exhibit satisfactory performance under ambient conditions as well.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Construction & Building Technology
Sukru Ozkan, Hakan Ceylan
Summary: The study investigated the possibility of using waste andesite in cement-based composites, finding that low substitution rates up to 15% yielded more positive results. Samples with 5% waste andesite substitution showed results closer to the reference sample, and samples with 30% substitution rates showed increased capacities for deflection and tensile strain.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Jaroslav Pokorny, Radek Sevcik, Jiri Sal, Lucie Zarybnicka
Summary: This study investigated the effective application of lightweight blended building waste in the manufacturing of eco-friendly concretes. The research found that the waste blend can significantly reduce the density of concrete, but a high rate of lightening caused a decrease in strength properties. However, utilizing the waste blend up to 25% can preserve the usage of these blended concretes, showing excellent thermal performance suitable for special filling and flooring applications.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Muhammad Umar Khan, Muhammad Nasir, Omar S. Baghabra Al-Amoudi, Mohammed Maslehuddin
Summary: This study evaluated the properties of concrete under different temperatures and curing conditions, showing that concrete specimens cured by water ponding had better properties. Blended cement concretes performed better than plain cement concretes, and different types of concrete had different optimal casting temperatures.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Review
Chemistry, Physical
Magdalena Dobiszewska, Orlando Bagcal, Ahmet Beycioglu, Dimitrios Goulias, Fuat Koksal, Maciej Niedostatkiewicz, Husamettin Urunveren
Summary: This paper presents a comprehensive review of the scientific findings regarding the use of rock dust from different geological origins in the production of mortars and concrete. The influence of rock dust as a replacement for fine aggregates on cementitious composites was analyzed and evaluated, considering the properties and durability of fresh and hardened concrete and mortar.
Article
Environmental Sciences
Agnieszka Chowaniec, Slawomir Czarnecki, Lukasz Sadowski
Summary: Quartz powder sourced from industrial wastes is hazardous due to its fine particles, which can cause cancer and nervous system impact. Utilizing waste quartz powder in epoxy resin coatings reduces the harm. However, epoxy resin is harmful to the environment, so its mass should be reduced with additives.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Civil
Pourya Alidoust, Saeed Goodarzi, Amir Tavana Amlashi, Lukasz Sadowski
Summary: This study investigated the mechanical properties of seashell-containing concrete using three machine learning models. The results showed that the ANN model outperformed the others and could accurately predict the compressive and tensile strength. Sensitivity analysis indicated that cement, water, and curing time parameters had a significant impact on concrete strength, while high seashell content decreased the strength.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2023)
Article
Engineering, Chemical
Piotr Cyganowski, Magda Caban, Mujahid Ameen Khan, Mateusz M. Marzec, Andrzej Zak, Pawel Pohl, Piotr Jamroz, Andrzej Bernasik, Anna Dzimitrowicz
Summary: Monosaccharide- and polysaccharide biopolymer-stabilized rhenium oxide nanoparticles have been effectively applied for the deactivation of furazolidone and chloramphenicol dissolved in solutions. The optical and granulometric properties of the stabilized nanoparticles were revealed using various experimental techniques. The raw nanoparticles showed a high efficiency in reducing both furazolidone and chloramphenicol, while the saccharide-stabilized nanostructure was less effective in reducing chloramphenicol.
PLASMA CHEMISTRY AND PLASMA PROCESSING
(2023)
Article
Construction & Building Technology
Adrian Chajec, Szymon Kwietniowski, Zuzanna Wozniak, Branko Savija, Lukasz Sadowski
Summary: Bleeding is a common problem in concrete slabs, but it can be controlled by adding granite powder or fly ash. Finer particle size distribution, increased specific surface area, and higher bulk density can reduce the amount of water in concrete mix and the bleeding rate. Bleeding can affect the compressive strength of concrete and lead to heterogeneity in physical and mechanical properties across the concrete section. Therefore, proper control of the bleeding process is crucial for achieving homogeneous properties in concrete.
STRUCTURAL CONCRETE
(2023)
Article
Engineering, Multidisciplinary
Andrzej M. Zak, Anna Wieczorek, Agnieszka Chowaniec, Lukasz Sadowski
Summary: The method of assessing porosity using SEM images is ineffective when the substrate and coating have different average atomic numbers, resulting in different contrast of backscattered electrons. Previous analyses relied on manual distinction of microstructure elements and selective thresholding, which is subjective and prone to errors. A new method was presented using both backscattered electron images and elemental maps for distinguishing epoxy resin from hydrated cement-based substrate, with the help of multivariate comparative analysis, making detection and analysis more accurate and reliable.
Article
Materials Science, Multidisciplinary
Aleksandra Krolicka, Grzegorz Lesiuk, Roman Kuziak, Krzysztof Radwanski, Aleksandra Janik
Summary: The fracture toughness of low-carbon bainitic steel after a continuous cooling process was investigated using the J-integral approach. The study focused on determining the microstructural factors that influence the fracture processes, including crystallographic units, phase dimensions, and morphology. The results showed that the fracture surface exhibited complex fracture mechanisms, such as quasi-cleavage, transcrystalline cleavage-ductile, and ductile mode. The cracking processes were mainly influenced by bainitic ferrite packets and prior austenite grain boundaries. Changes in the crack path direction were associated with changes in misorientation angles, with the most significant changes occurring in the bainitic ferrite packets. The study also identified a fracture process zone induced by the crack tip, where blocky austenite transformed into brittle martensite due to its high carbon content. Microcracks were nucleated from the transformed martensite and M/A constituents in the initial microstructure. The reduced dislocation density in the bainitic ferrite, caused by the formation of sub-grains, was observed in the crack tip area. Finally, potential improvements in the fracture toughness of bainitic steels were determined.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2023)
Article
Physics, Condensed Matter
Grzegorz Zatryb, Adrian Adamski, Maciej Chrzanowski, Mateusz Banski, Andrzej M. M. Zak, Artur Podhorodecki
Summary: This article investigates the resonant energy transfer in thick-shell CdSe/CdS quantum dots. The results show that despite the thick shell reducing the efficiency of energy transfer, it is still observable at higher emission energies. Furthermore, a new parameter is introduced to describe the non-single exponential shapes of photoluminescence decay curves, providing important information for studying energy transfer phenomena.
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2023)
Article
Construction & Building Technology
Andrzej M. Zak, Anna Wieczorek, Agnieszka Chowaniec, Lukasz Sadowski
Summary: In this study, the issues of porosity analysis of cement materials using backscattered electron images were described. It was observed that the overflow porosity segmentation method, although highly useful, could introduce additional errors due to the subjective nature of the researcher. Two improved variants of this method, regression I and II, were algorithmized and compared with literature methods to determine the fastest and most consistent measurement method. The comparison of data sets revealed that the improved overflow-based methods, particularly regression II, were the best candidates for automated porosity assessment. The Python source code for all algorithms used is summarized in the Supplementary Material.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Hassan Abdolpour, Pawel Niewiadomski, Arkadiusz Kwiecien, Marcin Tekieli, Lukasz Sadowski
Summary: The main goal of this study was to examine the effect of recycled steel fibers obtained from end-life tires on the mechanical properties of self-compacting ultra-high performance mortars. Different proportions of fibers (ranging from 1% to 3%) were incorporated into the mortars, and experimental, analytical, and numerical analyses were conducted to assess their brittle and post-cracking behavior. The results showed that the addition of up to 3% of fiber did not compromise the self-compatibility of the mortars, and led to an increase in their compressive and flexural strength. A new model was proposed to accurately predict crack mouth opening displacement, as existing models were found to overestimate it.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Review
Construction & Building Technology
Seweryn Malazdrewicz, Krzysztof Adam Ostrowski, Lukasz Sadowski
Summary: The demolition of old concrete structures is increasing due to technical issues, end of service-life, and modernization plans. This process generates Concrete Construction and Demolition Waste (CC&DW), which is often transported and deposited in landfills if not recycled. Researchers have studied the use of recycled materials from CC&DW in Self-Compacting Concrete (SCC), particularly in the form of Recycled Coarse Aggregate (RCA), as it can significantly reduce waste. However, there is still a lack of complete understanding of the processes involved in SCC with RCA, necessitating further research.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Physical
Onur Cavdar, Mateusz Baluk, Anna Malankowska, Andrzej Zak, Wojciech Lisowski, Tomasz Klimczuk, Adriana Zaleska-Medynska
Summary: A visible light driven BiOCl@ZnIn2S4 composite was successfully synthesized by growing ZnIn2S4 nanosheets on wide-band-gap BiOCl microplates, and it was used for the first time for photocatalytic glycerol reforming and hydrogen evolution. The optimized composite with 4% BiOCl microplates showed the highest photocatalytic hydrogen evolution rate of 674 lmol g-1h-1 with only 0.0625 wt% platinum. This work not only demonstrates the application of ZnIn2S4 photocatalyst in glycerol reforming, but also proves the enhancement of ZnIn2S4 performance under visible light by wide-band-gap BiOCl photocatalyst.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Correction
Materials Science, Multidisciplinary
Anna Dmitruk, Andrzej Zak, Krzysztof Naplocha, Wlodzimierz Dudzinski, Jerzy Morgiel
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Aleksandra Krolicka, Francisca Garcia Caballero, Wladyslaw Zalecki, Roman Kuziak, Radoslaw Rozmus
Summary: The aim of this study was to develop a new type of bainitic steel with a highly refined structure at the nanometer or submicron scale, as well as increased thermal stability at elevated temperatures. The material exhibited improved thermal stability compared to nanocrystalline bainitic steels with limited carbide precipitations. The steel design process and complete characteristics of the novel steel, including continuous cooling transformation and time-temperature-transformation diagrams, were presented. Furthermore, the influence of bainite transformation temperature on the degree of structure refinement and dimensions of austenite blocks was determined, and the effectiveness of the applied strategy for enhancing thermal stability at elevated temperatures was analyzed.
Article
Polymer Science
Alya Harichane, Nadhir Toubal Seghir, Pawel Niewiadomski, Lukasz Sadowski, Michal Cisinski
Summary: The incorporation of polycarboxylate ether superplasticizer (PCE) and silica fume (SF) in high-performance concretes leads to significant improvements in rheological and mechanical properties. PCE improves the workability of the concrete while SF enables compacted concrete with high mechanical parameters. The carboxylic density of PCE affects its compatibility with SF.
Article
Chemistry, Physical
Monika Szefczyk, Natalia Szulc, Marlena Gasior-Glogowska, Dominika Bystranowska, Andrzej Zak, Andrzej Sikora, Oliwia Polanska, Andrzej Ozyhar, Lukasz Berlicki
Summary: In this paper, a hierarchical approach for constructing nanofibrils based on alpha,beta-peptide foldamers is proposed as a rational method for designing novel self-assembled nanomaterials. The incorporation of a specific amino acid residue resulted in the formation of helical foldamers, which was confirmed by spectroscopic techniques. The obtained alpha,beta-peptides showed a strong tendency to aggregate and form self-assembled nanostructures, as revealed by assays and microscopy. The location of the beta-amino acid in the coiled-coil structure affected the secondary structure and morphology of the self-assembled nanostructures.
