Results 61 to 70 of about 295,888 (181)

Estado del arte del relleno fluido, para subbases y bases granulares (Primera parte)

Ciencia e Ingeniería Neogranadina, 2002
El artículo presenta una recopilación de información actualizada sobre el tema de los Rellenos Fluidos, normalmente conocidos en la literatura técnica como 'materiales de baja densidad y de baja resistencia controladas'. Lafinalidad de tal información es sentar una conceptualización básica sobre el tema, de modo que sirva como punto de partida para un ...
Santaella Valencia, Luz Helena, Salamanca Correa, Rodrigo   +1 more
openaire   +6 more sources

Applications of δ‐Open Sets via Separation Axioms, Covering Properties, and Rough Set Models

Journal of Mathematics, Volume 2025, Issue 1, 2025.
In this article, we make use of δ‐open sets to establish some topological concepts related to separation axioms and covering properties and to propose novel topological rough set models. We first demonstrate that the classes of regular‐open and δ‐open subsets of a finite topological space are equivalent when this space has the property of ∂(A)∩∂(B)⊆∂(A
Tareq M. Al-Shami, Muneerah Al Nuwairan, Mohammad W. Alomari   +2 more
wiley   +1 more source

A literature review based on the potential of use of RAP (Reclaimed Asphalt Pavement) in the base and subbase layers of flexible pavements

Soils and Rocks
The Brazilian Road transport mode accounts for approximately 65% of the freight transport matrix, playing a significant role in the productivity of all economic sectors.
Emiliane Karolina Gonçalves dos Santos Braga Santana, J. Paula   +1 more
semanticscholar   +1 more source

Numerical Analysis of the Dynamic Behavior of the Ballasted Railway Track Under Loading of Trains at Variable Speeds to Improve the Prediction of Dynamic Amplification Factors and Damage to Its Components

Shock and Vibration, Volume 2025, Issue 1, 2025.
This study contributes to the dynamic amplification effects of different speeds of trains on the behavior of the ballasted railway. The damage mechanisms of the main components of ballasted railway tracks were investigated in 3D numerical modeling using the PLAXIS code. Several moving speeds have been tested.
Zoa Ambassa, Jean Chills Amba, Arnab Biswas   +2 more
wiley   +1 more source

Comparison of Real Response and Theoretical Modeling of Pavement with Thick Asphalt Layers under Heavy Traffic Load

Advances in Civil Engineering, 2019
Two kinds of asphalt pavement with thick asphalt layers were used to construct two samples. In structure I, a semirigid base and graded crushed stone subbase were used. In structure II, a granular base and semirigid subbase layer were used.
Jingsong Shan, Hongmei Shao, Qiuzhong Li, Peili Sun   +3 more
doaj   +1 more source

Diseño y mejoramiento de subbase de pavimento con ceniza de Queñoa y desperdicios ladrilleros triturados en la carretera Juliaca-Coata, 2024

Revista Veritas de Difusão Científica
Este estudio se centra en el estudio de la subbase, cómo el uso de la ceniza de Queñoa y desperdicio ladrillero triturado influye en las propiedades de subbase de pavimento en la carretera Juliaca-Coata, Puno-2024; la metodología es de tipo aplicada y ...
Walter Ortiz Quispe
semanticscholar   +1 more source

Ecotoxicological assessment of waste foundry sands and the application of different classification systems

Integrated Environmental Assessment and Management, Volume 20, Issue 6, Page 2294-2311, November 2024.
Abstract The application of a battery of bioassays is widely recognized as a useful tool for assessing environmental hazard samples. However, the integration of different toxicity data is a key aspect of this assessment and remains a challenge. The evaluation of industrial waste leachates did not initially undergo any of the proposed integration ...
Carlotta Alias, Flavio Cioli, Alessandro Abbà, Donatella Feretti, Sabrina Sorlini   +4 more
wiley   +1 more source

Permanent deformation of unbound granular materials: A review

Journal of Traffic and Transportation Engineering (English ed. Online)
Several studies have been conducted in the pavement area to try to understand the elastoplastic behavior of unbound granular materials (UGMs) under cyclic loading.
Hugo Alexander Rondón-Quintana, Juan Gabriel Bastidas-Martínez, Fredy Alberto Reyes-Lizcano   +2 more
doaj   +1 more source

Reinforced SnO2 tensile‐strength and “buffer‐spring” interfaces for efficient inorganic perovskite solar cells

Carbon Energy, Volume 6, Issue 6, June 2024.
Polyacrylic acid (PAA) is used to reinforce the toughness of SnO2 and passivate SnO2 defects, forming an ideal “reinforced concrete” structure. PAA is also introduced into the SnO2/perovskite interface as a “buffer spring” to release residual strain, which acts as a “dual‐side passivation interlayer” to passivate interface defects.
Yuanyuan Zhao, Lei Gao, Qiurui Wang, Qiang Zhang, Xiya Yang, Jingwei Zhu, Hao Huang, Jialong Duan, Qunwei Tang   +8 more
wiley   +1 more source

Impact of Moisture Content on Resilient Modulus Predictions for Unbound Granular Materials Using Stress-Dependent Constitutive Models

Transportation Infrastructure Geotechnology
Unbound granular materials are the main construction materials used in the base and subbase layers of road pavements to provide structural support to the upper layers and ensure adequate response to traffic loads.
C. Plati, Maria Tsakoumaki, A. Armeni
semanticscholar   +1 more source