Results 1 to 10 of about 2,645,404 (161)
Wear and Fragmentation Resistance of Mineral Aggregates—A Review of Micro-Deval and Los Angeles Tests [PDF]
Materials, 2021 The aim of this article is to present the current knowledge and experiences related to wear and fragmentation resistance tests and to indicate those of their aspects that require further research.
Paweł Strzałkowski +1 more
exaly +3 more sources
Applied Sciences, 2023 During the routing of coarse particles in sedimentary environments, the particles are subjected to abrasion, leading to mass loss and changes in the particles’ morphology. The particles become more spherical, rounded, and smooth.
Tamara Kuzmanić +2 more
doaj +4 more sources
Quantifying Degradation of Railway Ballast Using Numerical Simulations of Micro-deval Test and In-situ Conditions [PDF]
Procedia Engineering, 2016 Throughout the life of the track, ballast grains wear as a result of both the trains passing over the track and the maintenance operations (tamping). The morphology of the grains is changed: they lose angularity and fine particles are produced, causing a
Fabrice Emeriault +2 more
exaly +3 more sources
Dataset regarding the mechanical characterization of sedimentary rocks derived from Svalbard for possible use in local road constructions [PDF]
Data in Brief, 2021 The dataset deals with the mechanical characterization of sedimentary rocks collected along the banks of Longyear river in proximity of Longyearbyen (Svalbard) at the junction of Bolterdalen and Adventdalen valleys.
Diego Maria Barbieri +6 more
doaj +2 more sources
Review of the relationship between aggregates geology and Los Angeles and micro-Deval tests
Bulletin of Engineering Geology and the Environment, 2021 Rock aggregates constitute the enormous volume of inert construction material used around the globe. The petrologic description as igneous, sedimentary, and metamorphic types establishes the intrinsic formation pattern of the parent rock. The engineering
Rein Terje Thorstensen +2 more
exaly +2 more sources
Engineering Geology, 2021 Testing long-term properties of aggregates requires time consuming laboratory tests. Alternatively, mathematical models can also be used to describe the abrasion process of aggregates.
Balázs Vásárhelyi, Àkos Torok
exaly +2 more sources
The effect of particle shape on the deformation and stress reduction of a gravel soil due to wetting [PDF]
Scientific Reports, 2021 This paper investigates the effect of particle shape on the stress reduction and collapse deformation of gravelly soil using a medium-scale direct shear test apparatus under different relative densities, normal stress, and shear stress levels.
Reza Mahinroosta, Vahid Oshtaghi
doaj +2 more sources
Bulletin of Engineering Geology and the Environment, 2020 Aggregates are necessary materials for the construction industry. Owing to their favourable properties, andesites are frequently used rock materials; hence, the investigation of their mechanical and aggregate properties has great significance. This paper
Àkos Torok
exaly +2 more sources
Improving Energy Access, Climate and Socio-Economic Outcomes Through Off-Grid Electrification Technologies: A Systematic Review. [PDF]
Campbell Syst RevABSTRACT Background Halfway through the final decade of actions towards the 2030 Sustainable Development Goals (SDGs), progress toward SDG7 is off track. It is estimated that by 2030, 660 million people, mainly rural populations within Sub‐Saharan Africa, will be without electricity.
Yavuz C +9 more
europepmc +2 more sources
Transportes, 2021 The objective of this study was to evaluate, comparatively, the evolution of this degradation of three rock types, two granitoids and a microgabbro which, eventually, could be used as ballast, due to the proximity of the quarries to the design route of a
Rony Souza dos Santos +3 more
doaj +1 more source