Article
Engineering, Geological
Yanhao Zheng, Matthew Richard Coop, Huiming Tang, Zhiqiang Fan
Summary: This study conducted a series of laboratory ring shear tests on the Huangtupo landslide in the Three Gorges Reservoir Region (TGRR) to investigate the effect of overconsolidation on the reactivated residual strength of deep-seated sliding zone soil. The results provide a reliable scientific basis for improving stability analysis and reinforcement measures for slow-moving landslides in the TGRR and can be applied to similar slow-moving landslides in other areas.
ENGINEERING GEOLOGY
(2022)
Article
Engineering, Civil
K. H. Tran, S. Imanzadeh, S. Taibi, H. Souli, J. M. Fleureau, M. Hattab
Summary: Research shows that soil liquefaction susceptibility increases with higher sample saturation degree, and there is a correlation between cyclic stress ratio and Skempton's parameter B. After liquefaction, the sand can regain its strength to some extent as pore water pressure dissipates.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2022)
Article
Environmental Sciences
Sanshao Ren, Yongshuang Zhang, Nengxiong Xu, Ruian Wu, Xiaoyi Liu, Guoliang Du
Summary: The mobilized strength of gravelly sliding zone soil is mainly controlled by the gravel content and the sliding friction resistance between soil particles. The ratio of gravel to clay content can be used as an index to evaluate the residual internal friction angle of gravelly sliding zone soil. Overall, the strength of sliding zone soil tends to decrease rapidly under external forces, triggering accelerated sliding of ancient landslides.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Environmental Sciences
Fei Zhao, Qiang Sun, Zhenlong Ge, Chen Dang
Summary: The purpose of this study is to investigate the changes in engineering mechanical properties of granite after various heating/cooling treatments, and to reveal the damage mechanisms. The results show that the strength of granite can be evaluated by the hardness index, which is of great engineering significance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Composites
Veerappan Balasubramani, Sadayan Rajendra Boopathy, Balasubramaniam Stalin, Vijayananth Kavimani
Summary: This research focuses on the effect of stacking sequence on the mechanical behavior of laminates. The angle-ply laminate specimens were analyzed theoretically and correlated with experimental results. It was found that (60/30/60/30)(S) exhibited the highest interlaminar shear strength and transverse stiffness, as well as the highest rate of residual strength degradation.
POLYMER COMPOSITES
(2022)
Article
Construction & Building Technology
Sk Abu Talha, Ahmad Al-Hosainat, Munir D. Nazzal, Sang Soo Kim, Ala Abbas, Louay N. Mohammad, Saif Nassar
Summary: This study evaluates the influence of different factors on the bond strength between a microsurfacing layer and an existing pavement structure, including tack coat residual application rate, dilution rate, and residual binder content of microsurfacing mix. The results indicate that microsurfacing samples with a higher tack coat residual application rate have significantly higher interlayer bond strength, high dilution rate decreases the bond strength, and the residual binder content of the microsurfacing mix also significantly affects the bond strength.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2022)
Article
Engineering, Environmental
Hamid Shayanfar, Eleanor Bailey, Rocky Taylor
Summary: Understanding the deformation and strength of ice rubble is crucial for estimating its loads on ships, offshore structures and subsea infrastructure. Punch tests were conducted to observe the failure behavior, revealing that it is controlled by the degree of freeze-bonding.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2022)
Article
Thermodynamics
N. Anand, Daniel Paul Thanaraj, Diana Andrushia, Eva Eszter Lubloy, Tattukolla Kiran, Balamurali Kanagaraj, Venkatesh Kodur
Summary: Building fires can lead to structural damage to concrete elements due to extreme temperatures. This study investigates the behavior of concrete subjected to heating and cooling from standard fire conditions, comparing the effects of natural air cooling and water spraying. The research examines the hardened, micro-structural, and thermal performance of fire-exposed concrete, and proposes relationships between temperature exposure and residual strength.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Construction & Building Technology
Babar Ali, Marc Azab, Hawreen Ahmed, Rawaz Kurda, Mohamed Hechmi El Ouni, Ahmed Babeker Elhag
Summary: Researchers have found that banana stem fiber (BSF) has high tensile strength and toughness, making it suitable for reinforcing concrete. Experimental results showed that 0.25% and 0.5% volumes of BSF significantly improved the strength of the concrete. Moreover, the mechanical performance of BSF was comparable to that of artificial polypropylene fiber (PPF).
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Betul Alis, Casim Yazici, Fatih Mehmet Ozkal
Summary: Structural deterioration during fire can lead to significant economic losses, severe injuries, and deaths. Recent research has been focused on accurately estimating the impact of fire on structural security and performance, and finding ways to reduce it. This study aims to establish a reliable algorithm for simulating the behavior of reinforced concrete beams under thermal and structural loads.
Article
Construction & Building Technology
L. R. Alejano, G. Walton, S. Gaines
Summary: The residual strength of granitic rocks following compressive tests is not significantly affected by physical scale or initial level of jointing. Three one-parameter residual strength models have been used to fit laboratory test data and provide reasonable approximations. Variations in residual laboratory strength parameters for different types of granitic rocks with varying scale and pre-jointing tend to be limited. Ultimately, potential errors in excavation analysis due to prior assumptions about the residual strength of granitic rock masses have been quantified.
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2021)
Article
Materials Science, Characterization & Testing
Shifa Xu, Meng Xu, Cong Fang, Hongzhe Liu, Xiaoyu Ren, Bingye Han
Summary: Polyether polyurethane concrete (PPC) is a new cold-mixed and cold-paved material. This study determines the optimal traffic opening timing for PPC by conducting various mixture performance tests and verifies the proposed model. The results show that when the indirect tensile strength of PPC is larger than 2.1 MPa, the performance of PPC meets the specified requirements, and the impact of opening traffic on the final strength and fatigue life is minimal.
JOURNAL OF TESTING AND EVALUATION
(2022)
Article
Construction & Building Technology
S. Ganji, H. E. Sharabiani, F. Zeinali
Summary: Adding polyamide tire cord waste as fiber and zeolite separately or together to concrete can improve its mechanical properties and increase compressive strength, abrasion resistance, and reduce chloride ion penetration resistance.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Civil
Arabinda Meher, Manas Mohan Mahapatra
Summary: Understanding the microstructural and mechanical behavior of friction stir welded magnesium matrix composites is important for their applications in automobile and aerospace components. In this study, friction stir welding of magnesium RZ5/8 wt% TiB2 metal matrix composites was carried out under different joining conditions. It was found that better grain refinement and uniform distribution can be achieved at specific tool rotational speed and traverse speed. The highest temperature, hardness, and tensile strength were observed in the nugget zone. Additionally, high residual stresses were observed near the weld zone.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2022)
Article
Construction & Building Technology
Hongbo Zhang, Mingpeng Liu, Zhang Shuo, Zhizhong Zhao, Yuhai Sun, Xiuguang Song, Hao Wang, Xinyi Zhang, Jianqing Wu
Summary: This research conducted triaxial shear tests to investigate the mechanical behaviors of silt-based foamed concrete specimens. The study found that increasing density led to higher strength levels, while increasing silt content decreased certain strength levels and altered pore structures.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2021)
Article
Engineering, Geological
L. Carbone, J. P. Gourc, P. Carrubba, P. Pavanello, N. Moraci
GEOTEXTILES AND GEOMEMBRANES
(2015)
Article
Engineering, Geological
P. Pavanello, P. Carrubba, N. Moraci
GEOTEXTILES AND GEOMEMBRANES
(2018)
Article
Engineering, Geological
P. Pavanello, P. Carrubba, N. Moraci
GEOTEXTILES AND GEOMEMBRANES
(2018)
Proceedings Paper
Engineering, Geological
Paolo Pavanello, Paolo Carrubba
VI ITALIAN CONFERENCE OF RESEARCHERS IN GEOTECHNICAL ENGINEERING, CNRIG2016 - GEOTECHNICAL ENGINEERING IN MULTIDISCIPLINARY RESEARCH: FROM MICROSCALE TO REGIONAL SCALE
(2016)
Article
Remote Sensing
Vladimiro Achilli, Paolo Carrubba, Massimo Fabris, Andrea Menin, Paolo Pavanello
Proceedings Paper
Engineering, Environmental
M. Conte, J. P. Gourc, P. Carrubba, L. Oxarango
COUPLED PHENOMENA IN ENVIRONMENTAL GEOTECHNICS: FROM THEORETICAL AND EXPERIMENTAL RESEARCH TO PRACTICAL APPLICATIONS
(2013)
Article
Engineering, Geological
Michele Conte, Paolo Carrubba
ITALIAN GEOTECHNICAL JOURNAL-RIVISTA ITALIANA DI GEOTECNICA
(2013)