Article
Engineering, Geological
Yaowu Liu, Chengjun Cao, Qing Wang, Wenle Zheng, Jiejie Shen, Yating Chen, Feifan Gu, Mengxia Han, Irene Rocchi
Summary: Utilization of sulfur-free lignin (SFL) to stabilize dispersive silt clay shows significant improvement in water stability and potential in enhancing engineering performance, with the risk of stabilization effectiveness being affected by freeze-thaw (F-T) cycles mitigated by SFL.
ENGINEERING GEOLOGY
(2021)
Article
Environmental Sciences
Mehmet Mustafa Deniz, Mehmet Erdem
Summary: This study comprehensively investigated the effects of F-T cycles on the strength and pollutant leachability of stabilization/solidification products. Different types and amounts of stabilization reagents were found to impact S/S efficiency and F-T resistance, while F-T events caused structural deformation and increased pollutant leachability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Civil
Onur Ozturk, Adnan Oner
Summary: The study aimed to determine the durability performance of bitumen-modified sulfur polymer concrete (SPC) under long-term freeze-thaw cycles, comparing the results with sulfur concrete (SC) and traditional Portland cement concrete (PCC). Results showed that SPC had better durability performance, with higher residual compressive strength and lower weight loss compared to SC and PCC.
INTERNATIONAL JOURNAL OF CIVIL ENGINEERING
(2022)
Article
Chemistry, Physical
Jacek Katzer, Jacek Halbiniak, Bogdan Langier, Maciej Major, Izabela Major
Summary: The study focused on the influence of fillers obtained from crushed waste materials on selected properties of concrete composites. Results showed that concretes modified with coarse and fine fillers exhibited improvements in mechanical properties and freeze-thaw resistance. Automated digital image analysis proved to be an effective tool for assessing concrete freeze-thaw resistance.
Article
Construction & Building Technology
Qi Liu, Ze Zhang, Shengrong Zhang, Xianglong Li, Haichao Long, Xiangxi Meng, Andrey Melnikov, Leonid Gagarin
Summary: This study simulates the effects of freeze-thaw weathering on sand and gravel materials through cycling tests. The study finds that the equivalent diameter and fractal dimension show a strong correlation with long-term strength, while roundness, aspect ratio, and ellipticity show weak correlation. Hence, improving the morphological characteristics of sand and gravel materials can enhance their resistance to freeze-thaw damage in engineering applications.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Soil Science
Ekrem Lutfi Aksakal, Ilker Angin, Serdar Sari
Summary: This study examines the impact of diatomite applications on soil consistency limits under freeze-thaw cycles. Results show that diatomite can effectively increase certain parameters and protect soil against the negative effects of freeze-thaw cycles.
SOIL & TILLAGE RESEARCH
(2021)
Article
Engineering, Environmental
Jiasheng Zhu, Mohammad Saberian, Jie Li, Tariq Maqsood, Wei Yang
Summary: This study investigates the mechanical performance of expansive clay soil reinforced with PET strips under freeze-thaw conditions. The experiments show that the compressive strength and resilient modulus of the PET-reinforced samples are higher than those of the unreinforced samples after freeze-thaw cycles. The optimum content of PET strips is found to be 1% by weight of dry soil.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2023)
Article
Soil Science
Erin C. Rooney, Vanessa L. Bailey, Kaizad F. Patel, Maria Dragila, Anil K. Battu, Alexander C. Buchko, Adrian C. Gallo, Jeffery Hatten, Angela R. Possinger, Odeta Qafoku, Loren. R. Reno, Michael SanClements, Tamas Varga, Rebecca A. Lybrand
Summary: Climate change in Arctic landscapes can increase the frequency of freeze-thaw cycles in the active layer and newly thawed permafrost. These cycles can disrupt the soil pore network, affecting water transport, redox conditions, and microbial activity. This study investigates the impact of freeze-thaw cycles on the pore network of thawed permafrost aggregates, revealing changes in pore morphology, connectivity, and throat diameter distribution. The results suggest that freeze-thaw alters the microenvironment of permafrost aggregates and affects soil properties and function in Arctic landscapes undergoing transition.
Article
Construction & Building Technology
Liu Yang, Zhiduo Zhu, He Sun, Wangwen Huo, Jie Zhang, Yu Wan, Chen Zhang
Summary: This study aimed to realize the complete recycling of waste concrete by using waste concrete powder, fly ash, and granulated ground blast furnace slag as raw materials for geopolymer. The results showed that prolonging curing time increased the uniaxial compressive strength and dynamic elastic modulus of the waste concrete powder-based geopolymer reclaimed concrete (WCPGRC), while freeze-thaw cycles decreased these properties. Carbonation and freeze-thaw cycles affected the microstructure of WCPGRC, with carbonation resulting in the formation of new carbonate crystals and geopolymer gels, while freeze-thaw cycles inhibited geopolymerization and intensified carbonation, reducing the structural integrity of WCPGRC.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Huiying Xu, Jingwu Bu, Xudong Chen, Qian Chen, Bo Xu
Summary: This study investigated the frost resistance and fracture behaviors of dredged sand concrete. The results showed that mass loss increased and relative dynamic elastic modulus and compressive strength decreased with an increase in freeze-thaw cycles. The pore structure of concrete was improved with an increase in dredged sand content, leading to improved fracture behavior and frost resistance. Additionally, the fracture surface became rougher with an increase in freeze-thaw cycles. The content of dredged sand influenced the fracture energy, with greater content resulting in higher fracture energy. The accumulation of AE counts, AE energy, and AE b-value reflected the failure process of dredged sand concrete, and a damage model based on AE events obeyed Weibull distribution.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Junhui Zhang, Anshun Zhang, Chao Huang, Huayang Yu, Chao Zhou
Summary: Recycling construction and demolition waste as fillers in pavement subgrade is a sustainable paving technology, but limited research exists on the dynamic resilient modulus characteristics of C&D waste under freeze-thaw cycles. This study aims to reveal the properties and establish a prediction model of the dynamic resilient modulus of C&D waste under various freeze-thaw cycles through laboratory tests.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Geological
Zhiwei Zhou, Guoyu Li, Mingde Shen, Qingzhi Wang
Summary: This study experimentally investigates the effects of freeze-thaw cycles on the dynamic responses of frozen subgrade soil, revealing different critical cycle numbers for dynamic shear modulus and damping ratio under different freezing low temperatures. A theoretical model is developed to describe the evolutionary features of these parameters, providing valuable insights for assessing the degeneration of engineering properties in frozen subgrade soil.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2022)
Article
Construction & Building Technology
Zhongnian Yang, Zhaochi Lu, Wei Shi, Chu Wang, Xianzhang Ling, Xiu Liu, Da Guan, Zhaojie Cheng
Summary: This study investigated the dynamic properties of expansive soil-rubber (ESR) undergoing freeze-thaw cycles using temperature-controlled dynamic triaxial tests. The results showed that shear stress and dynamic shear modulus decreased and then increased with increasing number of cycles. Shear stress and dynamic shear modulus were positively correlated with confining pressure and frequency. The damping ratio of ESR decreased with increasing shear strain, and the influence of freeze-thaw cycles, confining pressure, and frequency on the damping ratio was significant. The optimal ESR damping ratio was achieved when FT=12 and RC=10%, which was 29.76% higher than that of plain expansive soil.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2023)
Article
Engineering, Environmental
Shuyin Feng, Erdin Ibraim, Paul J. Vardanega
Summary: This paper presents laboratory data on the influence of freeze-thaw cycles on key soil parameters of four fine-grained soils. The results show that while some soil parameters are affected, the effects on the hydraulic conductivity transformation model parameters are less apparent.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2023)
Article
Food Science & Technology
Yan Li, Yu Wang, Xi Qiu, Mingcong Fan, Li Wang, Haifeng Qian
Summary: The influence of lactylated gluten and freeze-thaw cycles on the water state, microstructure, and quality of frozen steamed bread dough was investigated. The study found that lactylated gluten increased the specific volume and texture properties of steamed bread, as well as enhanced the viscoelasticity of frozen dough. The lactylated gluten also reduced water mobility and increased protein network connection points, improving the freeze-thaw tolerance of the dough.
Article
Engineering, Geological
I. Rocchi, M. R. Coop, M. Maccarini
ENGINEERING GEOLOGY
(2017)
Article
Chemistry, Analytical
Assaf Klar, Michael Roed, Irene Rocchi, Ieva Paegle
Article
Engineering, Geological
Yaowu Liu, Mushi Chang, Qing Wang, Yifan Wang, Junyuan Liu, Chengjun Cao, Wenle Zheng, Yiding Bao, Irene Rocchi
ENGINEERING GEOLOGY
(2020)
Article
Geosciences, Multidisciplinary
Irene Rocchi, Carmine Gerardo Gragnano, Laura Govoni, Marco Bittelli, Guido Gottardi
PHYSICS AND CHEMISTRY OF THE EARTH
(2020)
Article
Engineering, Geological
Emil Mejlhede Kinslev, Ole Hededal, Irene Rocchi, Varvara Zania
Summary: Accurate prediction of soil deformations is important for both unloading and loading scenarios. However, unloading behavior has been less studied compared to loading behavior. Overconsolidated high-plasticity clays exhibit complex deformation behaviors and have shown different unloading modes.
CANADIAN GEOTECHNICAL JOURNAL
(2022)
Article
Engineering, Geological
Yaowu Liu, Chengjun Cao, Qing Wang, Wenle Zheng, Jiejie Shen, Yating Chen, Feifan Gu, Mengxia Han, Irene Rocchi
Summary: Utilization of sulfur-free lignin (SFL) to stabilize dispersive silt clay shows significant improvement in water stability and potential in enhancing engineering performance, with the risk of stabilization effectiveness being affected by freeze-thaw (F-T) cycles mitigated by SFL.
ENGINEERING GEOLOGY
(2021)
Article
Engineering, Geological
Carmine Gerardo Gragnano, Irene Rocchi, Guido Gottardi
Summary: Researchers and designers face challenges in estimating the actual failure probability of river embankments under changing conditions, considering uncertainties and variability of soil suction, water content, and suitable soil models. The use of specialist integrated monitoring, laboratory tests, and numerical analyses can enhance the evaluation and analysis of levee stability.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2021)
Article
Chemistry, Physical
G. Di Remigio, I. Rocchi, V. Zania
Summary: SEM has been used to study the microstructure of clays, with this study focusing on the impact of particles orientation on soil behaviour. The results show that sample preparation influences the orientation of soil particles, with dispersed soft samples showing the greatest effect. CryoSEM technique affects the degree of particles orientation, while soft flocculated samples in acidic environments have lower reorientation. Stiff undisturbed samples are not significantly influenced by the method applied.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Physical
G. Di Remigio, I. Rocchi, V. Zania
Summary: The soil microstructure has a significant impact on the mechanical behavior of soil, and researchers have developed the MiCA code for quantitative analysis of particle orientation and pore shape, with validation showing good accuracy in the results.
APPLIED CLAY SCIENCE
(2021)
Article
Engineering, Geological
I. Rocchi, M. Marcolongo, L. Tonni, G. Gottardi
Summary: This paper introduces a novel device that measures the saturation degree of piezocone prior to a cone penetration test. The proposed method has the potential to provide quality benchmarks for CPTU and can assess whether saturation was lost during the cone penetration test. Preliminary results show a clear correlation between the proposed parameter and the saturation degree of filters and/or the overall pore-pressure measurement system.
GEOTECHNIQUE LETTERS
(2023)
Article
Engineering, Geological
Carmine Gerardo Gragnano, Mariagiovanna Moscariello, Sabatino Cuomo, Irene Rocchi, Guido Gottardi
Summary: This study highlights the importance of proper mechanical characterization of unsaturated soil for riverbank stability assessment, integrating experimental and numerical results from a case study on the Secchia River embankment. By analyzing safety variations induced by time-dependent hydraulic and atmospheric actions, the study aims to provide a contribution to the development of more realistic riverbank stability analyses and bridge the gap between researchers and practitioners in the use of unsaturated soil mechanics.
ITALIAN GEOTECHNICAL JOURNAL-RIVISTA ITALIANA DI GEOTECNICA
(2021)
Proceedings Paper
Engineering, Environmental
Mariagiovanna Moscariello, Carmine Gerardo Gragnano, Sabatino Cuomo, Irene Rocchi, Guido Gottardi
4TH EUROPEAN CONFERENCE ON UNSATURATED SOILS (E-UNSAT 2020)
(2020)
Article
Engineering, Geological
Laura Tonni, Maria Fernanda Garcia Martinez, Irene Rocchi
ITALIAN GEOTECHNICAL JOURNAL-RIVISTA ITALIANA DI GEOTECNICA
(2019)
Article
Engineering, Geological
Irene Rocchi, Carmine Gerardo Gragnano, Laura Govoni, Alessio Mentani, Marco Bittelli, Paolo Castiglione, Olivier Buzzi, Guido Gottardi
GEOTECHNICAL RESEARCH
(2018)
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)