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Numerical testing method and mechanical property evaluation of large particle size asphalt mixture.
PLoS One
January 2025
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an, Shaanxi, China.
The large particle size asphalt mixture with nominal maximum aggregate size 53 mm(LSAM-50) has good technical and economic performance and will become an effective technical way to build a full-thick long-life asphalt pavement with Chinese characteristics. In order to reveal the mechanical properties and influencing factors of LSAM-50 in depth, a numerical test method for the mechanical properties of the large particle size LSAM-50 asphalt mixture was developed, and a reasonable specimen size for LSAM-50 performance test was proposed by combining the numerical test and the indoor test. The results show that: LSAM-50 numerical test conditions are the calculation time step 10-3 s/step, the loading rate is 2 mm/min (uniaxial compression numerical test) and 50 mm/min (splitting numerical test) when LSAM-50 numerical experiment calculation rate and numerical experiment accuracy are better; after the size of the specimen reaches 200×160mm, the influence of the size effect is eliminated.
View Article and Find Full Text PDFSynergism and Mechanisms of Aging Resistance in the Use of Graphene and Carbon Nanotubes in Bitumen Composites.
Langmuir
January 2025
School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, P.R. China.
Thermal oxidation has a significant effect on the durability of bitumen composites reinforced with carbon nanomaterials. However, the mechanisms of aging resistance and the effect of aging on the chemical properties, morphology, micromechanical properties, and rheology of bitumen with carbon nanomaterials are still unclear. This study investigated the mechanisms of aging resistance underlying the synergistic effects of graphene and carbon nanotubes (CNTs) on the durability of bitumen composites.
View Article and Find Full Text PDFEffect of Food Deprivation on Plasma Cortisol, Carbohydrate Metabolism, and Histomorphology in Clarias batrachus.
Cell Biochem Biophys
January 2025
Department of Zoology, Aligarh Muslim University, Aligarh, UP, India.
The nutritional status of fish is essential for its health, experimental studies, and aquaculture practices. The current study investigated the impact of food deprivation on biochemical parameters, histology of skin, gill, and kidney tissues, and ultrastructure of gills in Clarias batrachus. Fish were subjected to food deprivation for 2, 7, and 15 days resulting in (a) significant increase in plasma cortisol levels, (b) no significant changes in plasma osmolality and plasma glucose content, and (c) significant decrease in liver and muscle glycogen contents.
View Article and Find Full Text PDFMulti-stage optimization framework for synergetic grey-green infrastructure in response to long-term climate variability based on shared socio-economic pathways.
Water Res
January 2025
College of Architecture and Urban Planning, Tongji University, Shanghai 200093, China. Electronic address:
Global climate change and rapid urbanization have increasingly intensified extreme rainfall events and surface runoff, posing significant challenges to urban hydrological security. Synergetic Grey-Green Infrastructure (SGGI) has been widely applied to enhance stormwater management in urban areas. However, current research primarily focused on optimizing and evaluating either grey infrastructure (GREI) or green infrastructure (GI) under single rainfall event, neglecting the non-stationary impacts of long-term climate change on infrastructure performance.
View Article and Find Full Text PDFRecycled used cooking oil (UCO) as a rejuvenator in high content reclaimed asphalt pavement (RAP) mixes: A life cycle assessment (LCA).
Sci Total Environ
January 2025
Civil and Infrastructure Engineering, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia. Electronic address:
This study investigates the primary data collected at a used cooking oil (UCO) recycling facility to quantify its environmental impact when used as a rejuvenator in high content reclaimed asphalt pavement (RAP) mixes. Annual energy consumption data sets on transportation, storage, filtration, machinery, and purification are assessed using the life cycle assessment (LCA) methodology with the LCA software Simapro 9.4 to evaluate the influential parameters and processes in reducing emissions.
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