Article
Construction & Building Technology
Juan He, Wenbin Bai, Weihao Zheng, Junhong He, Guochen Sang
Summary: This study investigated the influence of hydrated lime (HL) on the mechanical properties and shrinkage performance of alkali-activated slag (AAS) cement activated by water glass. The incorporation of HL was found to increase autogenous shrinkage, improve early mechanical strength, and reduce drying shrinkage in the AAS system. The optimal performance in terms of mechanical strength and shrinkage was achieved when the HL content was 5%.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Green & Sustainable Science & Technology
Vivek Gupta, Salman Siddique, Sandeep Chaudhary
Summary: The study shows that using hydrated lime instead of slaked lime and employing a two-stage mixing sequence to produce fly ash bricks with 15% moisture content can enhance mechanical and durability performance. Furthermore, economic and environmental comparisons indicate that hydrated lime fly ash bricks are more beneficial than fired clay bricks.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Chemical
Jae Won Han, Naim Hassoli, Kang San Lee, Sung Soo Park, Kwang Duek Kim, Hee Taik Kim, Young Ok Park
Summary: The study investigated the simultaneous dry scrubbing of gaseous HCl and SO2 by hydrated lime in an entrained mixing reactor simulating waste incineration flue gas. Results showed that hydrated lime with higher surface area and pore volume exhibited better removal performance for HCl and SO2.
Article
Construction & Building Technology
Yujiang Wang, Qian Tian, Hua Li, Yang Wang, Ming Li, Jiaping Liu
Summary: Early age shrinkage behaviors of cement-based materials are influenced by bleed water, hydration products, and temperature. However, it has been discovered that expansion can still occur without the reabsorption of bleed water, formation of expansive products, and thermal expansion. This is because the expansion happens during cavitation of the paste, which is caused by stress release.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Yu Sun, Lihan Li, Jian Liao, Chongwei Huang
Summary: An experimental study compared the compaction and dry shrinkage properties of cement-stabilized reclaimed lime-fly ash macadam (CSR) with cement-stabilized macadam (CSM). The results showed that CSR had a higher optimum moisture content and lower maximum dry density compared to CSM. The smaller the size of the reclaimed particles, the higher the optimum moisture content and lower the maximum dry density. Additionally, CSR had higher dry shrinkage properties, with increasing substitution rate and cement content.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Agronomy
Gideon Ramtahal, Pathmanathan Umaharan, Carisa Davis, Corey Roberts, Anand Hanuman, Leon Ali
Summary: The application of soil amendments using injection method was more effective in reducing Cd accumulation in cacao leaves.
Article
Thermodynamics
Libin Tan, Yuejin Yuan, Zhe Zhao, Yingying Xu, Yueding Yuan
Summary: Drying shrinkage is a complex process influenced by the micro-pore structure of high-moisture porous media. This study established a pore-scale model and conducted pore network simulations to analyze the effects of micro-pore structure characteristics on heat-moisture and stress-strain distributions during drying. The simulation results showed good agreement with experimental measurements and revealed the phenomena of dry spots, wet spots, irregular drying front, and asymmetric shrinkage. Capillary stress was identified as a key factor affecting drying shrinkage.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Construction & Building Technology
Degloorkar Nikhil Kumar, Pancharathi Rathish Kumar
Summary: Lime was a widely used construction material in ancient times, but its use declined with the invention of cement. Lime was found to be a better repair material for heritage structures due to its compatibility with ancient lime and masonry units. In this study, the physical, mechanical, and durability characteristics of lime-based mortars with fly ash/GGBS replacements were analyzed. Lime-GGBS mortars with 66% replacement showed the highest mechanical strength and low porosity.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Tugce Busra Su-Cadirci, Juliana Calabria-Holley, Ceren Ince, Richard James Ball
Summary: Degradation due to freezing and thawing is a common issue for hydrated lime mortars in historic building conservation. This study evaluated the use of pozzolanic additions, such as Argical M1000, diatomite, and brick dust, to improve the performance of the mortars for up to 720 days. The results showed that pozzolanic reactions influenced the pore structure, mechanical strength, and chemical reactivity of the mortar matrix. The study also found that diatomite mortars had a slower rate of failure due to pore refinement, resulting in better freeze-thaw performance. This research advances our understanding of how pore structure affects the freeze and thaw resistance of lime mortars and provides specifications for optimizing mortars for historic masonry.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jianwei Yue, Ying Chen, Limin Zhao, Siyuan Wang, Huicong Su, Xue Yang, Huijie Gao, Yiang Zhang, Wenhao Li
Summary: This study investigates the effect of aging on the internal mechanism of dry shrinkage cracking in lime soils with different ratios. The results show that aging time significantly affects the volume crack and expansion/shrinkage rates, and pH value is an important factor for determining the reasonable aging time.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Jianwei Yue, Ying Chen, Zhenxian Luo, Siyuan Wang, Huicong Su, Huijie Gao, Yuan Li, Peng Li, Can Ma
Summary: This study investigates the effect of aging time on the mechanical properties and shrinkage cracking of lime soil. The results show that as aging time increases, the soil softens, shear strength deteriorates, and cohesion decreases. The study also found that reasonable aging time can reduce lime hydration reaction, improve particle agglomeration effects, and reduce soil crack development.
Article
Construction & Building Technology
Daniel Jansen, Alexander German, Dominique Ectors, Frank Winnefeld
Summary: This study used X-ray diffraction and Rietveld refinement technique to investigate a hydrous carbonate-containing brucite and found that the 001 reflection of this phase split into different patterns at different temperatures. The presence of water and/or carbonate influenced the distance between the layers in the brucite structure.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Yuying Song, Junchen Xiang, Wenjun Cui, Guang Xiong
Summary: This study reports a method of grinding solid waste with anhydrous ethanol, using waste glass as an example. The results show that grinding waste glass particles to a small size using anhydrous ethanol promotes better contact with cement particles, increasing hydration reaction. Adding ground waste glass to cement improves its strength and compactness, and reduces shrinkage.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Huang Man, Hongliang Zhang, Liu Jifa
Summary: The study found that using different particle sizes and modifications of hot-pressed hydrated lime (HL) can improve the cooling effect and performance of asphalt pavements, with a particle size of 1200 mesh, spreading dosage of 100 g/m(2), and graft polymerisation modification being the optimal choices for HL. The cooling effect of hot-pressed HL pavement is slightly weaker than traditional heat-reflective coating pavements, but the cost of the former is only about 0.01 times of the latter.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2021)
Article
Construction & Building Technology
Graciela Ponce-Anton, Anna Arizzi, Giuseppe Cultrone, Maria Cruz Zuluaga, Luis Angel Ortega, Juantxo Agirre Mauleon
Summary: The mineralogical, chemical, and physical characterization of archaeological lime mortars at Amaiur Castle in Spain revealed that the mortars' durability is largely influenced by their textural features, with high porosity and water absorption contributing to susceptibility to deterioration. The identification of hydrotalcite and hydromagnesite in the mortar binder supports the traditional hot-mixing method used in manufacturing the mortars at the castle. This study provides valuable insights for formulating compatible repair mortars to ensure suitable conservation of the castle and similar ancient structures.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
A. Arizzi, P. F. G. Banfill
MATERIALS AND STRUCTURES
(2019)
Article
Chemistry, Physical
Graciela Ponce-Anton, Anna Arizzi, Maria Cruz Zuluaga, Giuseppe Cultrone, Luis Angel Ortega, Juantxo Agirre Mauleon
Article
Architecture
G. C. Lourdes, Anna Arizzi, I. Bestue Cardiel, E. Sebastian Pardo
Summary: In 1985, many medieval fortifications in Spain were classified as cultural heritage assets, but preserving them from decay poses challenges due to limited understanding of the building materials and techniques used. Research suggests that characterizing the building materials is crucial for implementing compatible protective actions.
INTERNATIONAL JOURNAL OF ARCHITECTURAL HERITAGE
(2021)
Article
Chemistry, Physical
Giuseppe Cultrone, Francisco Javier Carrillo Rosua
APPLIED CLAY SCIENCE
(2020)
Article
Construction & Building Technology
Giuseppe Cultrone, Itziar Aurrekoetxea, Carmen Casado, Anna Arizzi
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Archaeology
Chiara Germinario, Giuseppe Cultrone, Alberto De Bonis, Girolamo F. De Simone, Michele Gorrasi, Francesco Izzo, Alessio Langella, Caterina S. Martucci, Mariano Mercurio, Vincenzo Morra, Christopher R. Vyhnal, Celestino Grifa
Summary: The passage discusses archaeological sites on the northern slope of Mt. Vesuvius, particularly in the town of Pollena Trocchia, which illustrate the transition from Roman to late Roman cultural and socioeconomic settings. It highlights changes in ceramic manufacturing processes, specifically in common wares, and analyzes samples of tableware to show the technological transformations that occurred during that time period.
GEOARCHAEOLOGY-AN INTERNATIONAL JOURNAL
(2021)
Article
Anthropology
Massimo Setti, Anna Arizzi, Paula Nieto, Nicolas Velilla Sanchez, Giuseppe Cultrone, Lorenzo d'Alfonso
Summary: This paper studied the building materials from the Nigde-Kinik Hoyuk archaeological site in Southern Cappadocia, Turkey, analyzing their structural stability and composition, which included volcanic minerals and sedimentary elements. The long-term conservation of the site was attributed to burial in constant temperature and humidity conditions, protecting it from harsh weather conditions in the region.
ARCHAEOLOGICAL AND ANTHROPOLOGICAL SCIENCES
(2021)
Article
Anthropology
M. L. Gutierrez-Carrillo, A. Arizzi
Summary: The paper proposes a study methodology focused on analyzing the risks and damages affecting 8 out of the 229 fortifications in southeast Spain, considering both macro-scale and micro-scale factors. The innovative strategy is based on a multidisciplinary study aimed at understanding these sites completely for proper management and conservation of this heritage.
ARCHAEOLOGICAL AND ANTHROPOLOGICAL SCIENCES
(2021)
Review
Anthropology
Anna Arizzi, Giuseppe Cultrone
Summary: The study of historic mortars is complex and requires a multidisciplinary approach, utilizing analytical techniques from chemistry, mineralogy, physics, engineering, among others. This review provides a comprehensive overview of the most widely accepted analytical techniques and physical-mechanical tests used in the characterisation of historic mortars.
ARCHAEOLOGICAL AND ANTHROPOLOGICAL SCIENCES
(2021)
Article
Geochemistry & Geophysics
Javier Martinez-Martinez, Anna Arizzi, David Benavente
Summary: This research focuses on the influence of secondary salt weathering processes on rocks exposed to marine environments. The chemical dissolution and differential thermal expansion contribute actively to the decay of rocks in marine environments.
Article
Geochemistry & Geophysics
Elena Mercedes Perez-Monserrat, Lara Maritan, Enrico Garbin, Giuseppe Cultrone
Summary: The study analyzed bricks from the Renaissance walls of Padua, Northeast Italy, using various methods to determine the manufacturing technologies and their impact on the physical behavior and durability of the bricks.
Article
Materials Science, Ceramics
Giuseppe Cultrone
Summary: The addition of volcanic ash affects the firing process and properties of bricks, delaying the appearance of new phases and increasing compactness, but reducing strength. However, adding volcanic ash can improve the resistance of bricks to corrosion caused by salt crystallization.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
E. Molina, A. Arizzi, D. Benavente, G. Cultrone
FRONTIERS IN MATERIALS
(2020)
Article
Construction & Building Technology
Chiara Coletti, Erika Brattich, Giorgia Cinelli, Giuseppe Cultrone, Lara Maritan, Claudio Mazzoli, Domiziano Mostacci, Laura Tositti, Raffaele Sassi
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Construction & Building Technology
Qi Zheng, Chengyao Liang, Jinyang Jiang, Haiyan Mao, Karen C. Bustillo, Chengyu Song, Jeffrey A. Reimer, Paulo J. M. Monteiro, Haimei Zheng, Shaofan Li
Summary: This study used scanning transmission electron microscopy to examine defects in cement particles at the single-atom level. The researchers identified different types of defects and found that they play a crucial role in cement hydration, facilitating dissolution and providing nucleation sites for hydration products.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Anuj Parashar, Shashank Bishnoi
Summary: This study investigated the hydration of siliceous fly ash, slag, and metakaolin with calcium hydroxide, and found that the rate of hydration and phase assemblage is influenced by the alkali and sulphate content, while siliceous fly ash is less affected by alkalis and sulphates.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Peimin Zhan, Juan Wang, Hanbing Zhao, Wengui Li, Surendra P. Shah, Jing Xu
Summary: This study investigates the influence of hydrothermal synthetic conditions on the properties of C-S-H seeds and reveals the correlations between C-S-H seeds properties, hydration kinetics, and paste performances. It is found that low reactant concentrations and calcium-to-silicon ratios facilitate the production of C-S-H seeds with small size and high purity. Using C-S-H seeds with high effective surface area accelerates the hydration process of cement, resulting in refined pore structure and enhanced strength.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Zhaozheng Meng, Qing-feng Liu, Neven Ukrainczyk, Song Mu, Yufei Zhang, Geert De Schutter
Summary: This study developed a numerical framework to investigate the combined attack of sulfate and chloride ions on cementitious materials in marine and saline environments. The study quantified various chemical reactions and solved the electrostatic potential caused by multi-ion coupling. The results showed that neglecting the multi-ions coupling effect could result in an underestimated chemical coupling strength in competitive chloride-sulfate binding.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Ning Li, Cise Unluer
Summary: This study aimed to improve the carbonation efficiency and reduce processing time of recycled concrete aggregates (RCAs). Wet carbonation with seawater was found to be more efficient than dry carbonation, leading to significant reduction in water absorption and increase in density of RCAs. The compressive strength of recycled aggregate concrete (RAC) prepared with 1-hour seawater carbonated RCAs was also improved. The formation of ettringite and calcite under wet carbonation contributed to the increased density and strength, as well as improved bond strength in the interfacial transition zone of RAC. Seawater presents several advantages as a medium for wet carbonation, including its abundant availability, CO2 capture capacity, and accelerated hydration and carbonation.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Yong Tao, Yining Gao, Yanjie Sun, Roland J. -M. Pellenq, Chi Sun Poon
Summary: Decalcification of calcium silicate hydrates (C-S-H) is an important issue for the long-term safety of cement-based infrastructures. Using molecular simulations, this study reveals an important mechanism of accelerated C-S-H decalcification in seawater, which involves ion exchange between surface Ca and electrical double layers, resulting in a decrease in Ca dissolution free energy. This finding enhances the understanding and prediction of cementitious materials' degradation.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Kumaran Coopamootoo, Enrico Masoero
Summary: This study uses kinetic simulations to investigate the relationship between dissolution rate and saturation index in minerals in solution. Two distinct regimes are observed, with stresses at crystallographic defects controlling the transition between them. A parameterization of the interaction potentials is proposed to obtain consistent interfacial energies with water. The findings contribute to the current discussion on controlling reactivity using materials and defects.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Faping Li, Qianshi Chen, Yiyan Lu, Yunlong Zou, Shan Li
Summary: In this study, the impact of functionalized multi-walled carbon nanotubes and a silane coupling agent on the performance and microstructure of alkali-activated fly ash/slag pastes was investigated. The results showed that the addition of these materials can prolong setting time, improve flowability and mechanical strength, and reduce mass loss and drying shrinkage.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Yaozeng Wang, Wencui Yang, Ai Zhang, Penghuan Liu, Yong Ge
Summary: Low-temperature low-field nuclear magnetic resonance was used to analyze icing in water saturated white cement paste specimens during the freeze-thaw process at different temperatures. The experimental results were compared with classical theory, showing agreement at certain temperatures but discrepancies at others. New equations were proposed based on the analysis of specimens saturated with different solutions to relate the volume of frozen water to temperature during freezing and thawing of cementitious materials.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Shengjie Yan, Yingjie Liang
Summary: This paper proposes a fractal derivative model with a non-linear distributed-order (DOFM) to describe the multi-scaling behaviors of particle diffusion in alkali-activated materials. The DOFM is tested using experimental data and is found to effectively describe the multi-scaling diffusion behaviors of particles in the materials.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Cecilia Pesce, Richard J. Ball, Marco Molinari, Shaun Reeksting, Giovanni Luca Pesce
Summary: This study evaluates the effect of ten organic additives on the microstructure of portlandite crystals during CaO hydration. It was found that the presence of carbohydrates and sulfonates can alter the structure of portlandite and the properties of lime can be controlled by adding carbohydrates. This has significant implications for the development of new binders and reducing CO2 emissions.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Daniel Jansen, Alexander German, Dominique Ectors, Frank Winnefeld
Summary: This study used X-ray diffraction and Rietveld refinement technique to investigate a hydrous carbonate-containing brucite and found that the 001 reflection of this phase split into different patterns at different temperatures. The presence of water and/or carbonate influenced the distance between the layers in the brucite structure.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Dylan Singh, Trinh Thao My Nguyen, Evann Bustamantes, Abdul Wahab, Ahmad Hamzah Yousaf, Ian Shortt, Frank W. Foss Jr, Maria Konsta-Gdoutos, Sang Soo Lee, Erika La Plante
Summary: This study analyzes the chemical structure and morphology of magnesium silicate hydrate (MSH) grown under different concentration ratios and temperatures. The results show that increasing the magnesium to silicon ratio reduces silicate polymerization in MSH, and at higher temperatures and longer reaction times, oriented attachment of nanoparticles and enhanced crystallinity are observed. These findings provide insights into the precise chemical synthesis of MSH and its widespread use as a binder in construction.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
J. C. O. Zepper, S. R. van der Laan, K. Schollbach, H. J. H. Brouwers
Summary: This study presents a method to calculate the main phases of BOF slag based on chemical composition and validates the proposed final model through quantitative model assessment and validation approaches.
CEMENT AND CONCRETE RESEARCH
(2024)
Article
Construction & Building Technology
Yierfan Maierdan, Samuel J. Armistead, Rebecca A. Mikofsky, Qiqi Huang, Lola Ben-Alon, Wil V. Srubar III, Shiho Kawashima
Summary: This research investigated the effects of sodium alginate on the stability and 3D printability of kaolinite suspensions. The findings showed that sodium alginate could enhance the stability of kaolinite and improve the strength of printable mixtures, as well as shift the printability window.
CEMENT AND CONCRETE RESEARCH
(2024)
