Results 11 to 20 of about 64,873 (163)

Quantifying Degradation of Railway Ballast Using Numerical Simulations of Micro-deval Test and In-situ Conditions

Procedia Engineering, 2016
AbstractThroughout 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 gradual loss of track performance. Eventually ballast renewal becomes necessary.
Charles Voivret, Gael Combe, Fabrice Emeriault   +2 more
exaly   +4 more sources

Evaluating the effect of mineralogy and mechanical stability of recycled excavation materials by Los Angeles and micro-Deval test [PDF]

, 2021
This paper presents the findings of the mechanical performance of recycled excavation materials (REM). The aim was to document the stable performance of REM and to suggest its suitability for unbound applications. Test operations were performed at different schedules with the Los Angeles (LA) and micro-Deval (MD) test machine.
Adomako, Solomon, Thorstensen, Rein Terje, Akhtar, Naureen, Norby, Mariann, Engelsen, Christian John, Danner, Tobias, Barbieri, Diego Maria   +6 more
openaire   +6 more sources

Investigation of Fragmentation and Abrasion Resistance of Basalt and Limestone Aggregates in Bitlis Region and the Relationship between MgSO4 and Flatness Index Values

Firat University Journal of Experimental and Computational Engineering
The mechanical characteristics of aggregates have a direct impact on the performance of asphalt mixtures. The aggregates used in road construction must possess certain essential qualities; they should be clean, hard, durable, resistant to abrasion, of ...
Alev Akıllı El
doaj   +2 more sources

Improving Energy Access, Climate and Socio-Economic Outcomes Through Off-Grid Electrification Technologies: A Systematic Review. [PDF]

Campbell Syst Rev
ABSTRACT 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, Ravat Z, León MDA, Lee S, Fernandes P, Reifmesser Q, Gaved FE, Pilato S, Parrao CG, Snilstveit B.   +9 more
europepmc   +2 more sources

Physico-mechanical characterization of schists in Tazzeka complex [Taza Province, Eastern Morocco]

Case Studies in Construction Materials, 2021
This paper presents the first results of a physicomechanical reconnaissance campaign on the schist of the Tazekka primary massif in northeast Morocco.
Hicham Cherifi, Abdel-Ali Chaouni, Ghizlane Fattah, Abdessamad Jalouni, Imane Jabri, Hicham El Asmi, Imad Raini   +6 more
doaj   +1 more source

Characterization of road surfacing aggregates based on their mineralogical fingerprint

Journal of Traffic and Transportation Engineering (English ed. Online), 2022
To ensure the safety of infrastructure users, the long-term skid resistance is a crucial factor and is determined in large by the mineralogical and morphological characteristics of surfacing aggregate.
Dawei Wang, Yulin He, Chonghui Wang, Zeyu Zhang, Guoyang Lu, Pengfei Liu, Markus Oeser   +6 more
doaj   +1 more source

The Big Five model in rural Southeast Asia: Validation, stability, and its role in household income*

Journal of Personality, Volume 91, Issue 6, Page 1364-1380, December 2023., 2023
Abstract Objective We investigate the applicability of the Big Five model in rural Southeast Asia and thereby challenge recent concerns about the validity of the model in developing countries. Method We use a novel data set on personality traits from rural Thailand and Vietnam (N = 3811 individuals).
Dorothee Bühler, Rasadhika Sharma, Wiebke Stein   +2 more
wiley   +1 more source

Technical and environmental properties of recycled aggregates produced from concrete sludge and excavation materials

Case Studies in Construction Materials, 2023
This study presents a Re-Con Zero dry washing technology used to produce recycled aggregates from concrete sludge (RCZ) and combined as a feedstock in wet recycling excavation materials (EM) for unbound applications.
Solomon Adomako, Christian John Engelsen, Line Teigen Døssland, Tobias Danner, Rein Terje Thorstensen   +4 more
doaj   +1 more source

Biointerface Coatings With Structural and Biochemical Properties Modifications of Biomaterials

Advanced Materials Interfaces, Volume 10, Issue 10, April 4, 2023., 2023
This article is a review of biointerface coatings including discussions from structural and biochemical perspectives to provide a future development of an advanced biointerface coating with combinatorial and complementary properties from the discussed disciplines.
Chin‐Yun Lee, Shu‐Man Hu, Jane Christy, Fang‐Yu Chou, Theresia Cecylia Ramli, Hsien‐Yeh Chen   +5 more
wiley   +1 more source

The use of remote sensing indices to understand flood‐recharged soil moisture impacts on trees in semi‐arid floodplains: A review

Ecohydrology, Volume 15, Issue 7, October 2022., 2022
Abstract Remote sensing indices (RSIs) are essential for detection, mapping and monitoring of floods, soil moisture and tree characteristics. An understanding of the nexus between flood‐recharged soil moisture (FRSM) and endangered biodiversity tree hotspots in semi‐arid floodplains is critical.
Ezra Pedzisai, Onisimo Mutanga, John Odindi, Terence Darlington Mushore   +3 more
wiley   +1 more source