Article
Materials Science, Multidisciplinary
A. R. C. Gerlt, A. K. Criner, S. L. Semiatin, K. N. Wertz, E. J. Payton
Summary: This paper addresses the challenge of accurately estimating the mean size of features within an opaque material using only 2D observations, and proposes a method for transforming 2D observations into estimates of the full 3D distributions with improved accuracy.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Andrew Vidler, Olivier Buzzi, Stephen Fityus
Summary: Research on improving soil for plant growth by mixing mine waste materials and topsoil; proposed a simple and efficient model to predict drying curves for these mine materials, showing favorable performance compared to existing models.
APPLIED SCIENCES-BASEL
(2021)
Article
Geosciences, Multidisciplinary
Muhammad Bisri Mustofa, Umar Fauzi, Warsa Warsa, Fourier Dzar Eljabbar Latief
Summary: The study shows that the spatial distribution of brine in unconsolidated sands significantly affects the electrical resistivity, particularly within the saturation range of 60% to 80%. Grain size also plays a role in determining brine distribution in pore spaces, affecting resistivity measurements. Additionally, an empirical equation was proposed to explain samples where Archie's formula does not fit properly, providing new insights for physics and significant contributions to applied geophysics.
JOURNAL OF APPLIED GEOPHYSICS
(2021)
Article
Energy & Fuels
Peng Wu, Shenghua Yang, Xiangge Song, Xiang Sun, Yanghui Li
Summary: In this study, it was found that grain size distribution has a significant impact on the physical properties of hydrate-bearing sediment (HBS), affecting pore connectivity, permeability, thermal conductivity, and electrical conductivity. Smaller grain size leads to deteriorated connectivity in pores and throats, decreased permeability, increased thermal conductivity, and decreased electrical conductivity in HBS under the same hydrate saturation.
Article
Geography, Physical
Heidi E. J. Smith, Angel D. D. Monsalve, Jens M. M. Turowski, Dieter Rickenmann, Elowyn M. M. Yager
Summary: Steep, boulder bed streams often have sediment patches with distinct grain size distributions. The critical Shields stress for a given grain size is influenced by the underlying grain size distribution, which can be predicted using hiding functions. However, the effect of local grain size distribution on sediment mobility between sediment patches is poorly understood. In this study, we examined the effects of patch-scale grain size distribution on sediment mobility in a steep stream and found that patches can modulate relative sediment mobility through both the underlying grain size distribution and local shear stresses.
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)
Article
Nuclear Science & Technology
Mengqi Wu, Nan Gui
Summary: This paper investigates the binary-sized circulating pebble flow from the perspective of flow behaviors and packing structure. The discharge characteristics closely related to the equilibrium of the HTGR pebble bed are explored, and the packing structure is investigated through analysis of porosity, packing fraction, number distribution, and coordination number.
PROGRESS IN NUCLEAR ENERGY
(2022)
Article
Materials Science, Multidisciplinary
Fengxia Wei, Baisong Cheng, Li Tian Chew, Jing Jun Lee, Kok Heng Cheong, Jiang Wu, Qiang Zhu, Cheng Cheh Tan
Summary: The study compared EBSD and OM techniques, investigated the effects of different parameters on results, and proposed a modified Hall-Petch equation considering grain size distributions for almost all AM alloy systems with remarkable agreement between predicted strength and experimental values.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Construction & Building Technology
Qingsheng Chen, Wan Peng, Ronghu Yu, Gaoliang Tao, Sanjay Nimbalkar
Summary: Calcareous sands are fragile even under small stresses, breaking into smaller fragments at low stress through attrition, and crushing at higher stresses. The evolution of particle size is reflected in the changes of particle breakage indices. A new breakage law is proposed based on the test findings.
ADVANCES IN CIVIL ENGINEERING
(2021)
Article
Environmental Sciences
Yu Wang, Bao-long Li, Juan-juan Liu, Qi Feng, Wei Liu, Xu Wang, Yu-hua He
Summary: The construction of cascade reservoirs in the Heihe River significantly affects the distribution of sediment grain size, resulting in high levels of sediment fining or coarsening. The backwater zone of the reservoir is influenced by both backwater and released water, leading to a high degree of sediment coarsening. The sediment in the upstream tributary is more influenced by source material, while mainstream sediments are mainly controlled by hydrodynamic conditions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
A. C. Arriola-Velasquez, A. Tejera, I. Alonso, F. Camara, M. Cantaluppi, H. Alonso, N. Miquel-Armengol, J. G. Rubiano, P. Martel
Summary: Erosion and accumulation of coastal areas have become a growing concern. Natural radionuclides are proposed as tracers to study coastal sediment transport. This study analyzed the spatial distributions of four radionuclides and found their suitability in identifying sediment dynamics and their correlation with mineral composition.
Article
Multidisciplinary Sciences
Katharina Tholen, Thomas Pahtz, Hezi Yizhaq, Itzhak Katra, Klaus Kroy
Summary: In this study, a quantitative model is used to derive a unified phase diagram for aeolian sand transport and megaripple morphodynamics. A quantitative signature of bimodal aeolian transport is discovered, which is supported by comprehensive analysis of terrestrial and extraterrestrial data.
NATURE COMMUNICATIONS
(2022)
Article
Geochemistry & Geophysics
Baojian Li, Gang Lei, Panpan Guo, Gaoyun Zhou, Zhe Wang, Xiaonan Gong
Summary: The study investigated the effect of relative density on the mechanical properties of calcareous sands and explored the relationship between material properties and the limit void ratio of different mixed graded sands. The results showed a significant impact of fine content on void ratio, with 40% being the critical fine content corresponding to the lowest limit void ratio.
Article
Engineering, Geological
Angshuman Das, Pradipta Chakrabortty, Radu Popescu
Summary: This study investigated the effect of lumped particles on the liquefication resistance of sand through strain-controlled cyclic triaxial tests. The results showed that soil samples with lumps had lower cyclic resistance compared to clean sands, likely due to particle crushing and rearrangement. Therefore, the presence of soil lumps in cohesionless soil reduces the initial shear modulus and makes the soil more susceptible to liquefaction.
BULLETIN OF EARTHQUAKE ENGINEERING
(2021)
Article
Engineering, Chemical
Jing Wang, Jinghua Ling, Daosheng Ling, Tiantian Hu, Chunjian He
Summary: The determination of suitable engineering indexes to reflect particle size distribution (PSD) is crucial for understanding micro-macro behaviors of granular materials. This study collects data of six typical sands to establish a PSD database and adopts the cumulative central beta distribution to describe grading curves. The combination of mean particle size D50 and coefficient of uniformity Cu is identified as the most appropriate for characterizing PSD and linking it to mechanical responses.
Article
Materials Science, Multidisciplinary
Laura Homa, Matthew Cherry, John Wertz
Summary: This article presents a method for detecting and characterizing microtexture regions (MTRs) with similar crystallographic orientation. Eddy current testing, a nondestructive evaluation method, is used to detect changes in conductivity related to changes in crystallographic orientation. Previous research has demonstrated the effectiveness of this method, and this article extends it to realistic microstructures.
Article
Engineering, Geological
Negin Zhalehjoo, Didier Bodin, Geoffrey Jameson, Andrew Papacostas, Ross Guppy
Summary: Foamed bitumen stabilization is a sustainable solution for construction and rehabilitation of pavements, and it improves pavement performance. This paper focuses on the development of a fatigue relationship for Foamed bitumen stabilized (FBS) materials, which will assist in thickness design of FBS flexible pavements.
GEOTECHNICAL TESTING JOURNAL
(2024)
Article
Engineering, Geological
Alejandra Lopez Ramirez, Yinning Zhang, Juha Forsman, Leena Korkiala-Tanttu
Summary: This paper presents the results of an extensive testing program on the stabilization of Finnish soft clay using low emissions binders. The alternative binders, including by-products and pozzolanas, showed higher strength than traditional binders at various densities. Additionally, a simplified CO2 emissions calculation procedure for DDM design and different emissions factors for the investigated binders were proposed.
GEOTECHNICAL TESTING JOURNAL
(2024)
Article
Engineering, Geological
Ashray Saxena, V. Vinay Kumar, Natalia S. Correia, Jorge G. Zornberg
Summary: Reclaimed asphalt pavement (RAP) is widely used in road construction due to its economic and environmental benefits. This study evaluates the millability and recyclability of asphalt layers with paving interlayers (GRAP). It finds that GRAP can be reused in base and surface courses, leading to sustainable roadway construction practices.
GEOTECHNICAL TESTING JOURNAL
(2024)
Article
Engineering, Geological
Buddhima Indraratna, Chathuri M. K. Arachchige, Cholachat Rujikiatkamjorn, Ana Heitor, Yujie Qi
Summary: This article discusses the recycling of waste materials produced in the coal and steel industry as well as the reusing of waste tires, which is a high priority in Australia's urban infrastructure development for environmental preservation. The practical applications of these waste materials in coastal reclamation and road and rail construction are presented, along with comparisons to traditional quarried materials. The research outcomes demonstrate that properly engineered waste mixtures can exceed current technical standards and reduce maintenance intensity, supporting sustainable solutions for future transportation infrastructure development.
GEOTECHNICAL TESTING JOURNAL
(2024)
