Results 31 to 40 of about 64,873 (163)

Caracterización de agregados pétreos con el ensayo Micro Deval [PDF]

, 2008
En este documento se presentan los aspectos más relevantes del proceso de implementación del ensayo Micro Deval, contemplado por la Norma ASTM D 6928, “Standard test method for resistance of coarse aggregate to degradation by abrasion in the Micro-Deval ...
López P., Claudia Patricia, Campagnoli Martinez, Sandra Ximena   +1 more
core   +1 more source

SPECIFIC ASSESSMENT METHOD OF RAILWAY BALLAST PARTICLE DEGRADATION BASED ON UNIQUE LABORATORY TEST

Nauka ta progres transportu, 2018
Purpose. There are specific, standardized laboratory test methods to assess railway ballast particle degradation; they are the Los Angeles (EN 1097-2) and the Micro-Deval abrasion (EN 1097-1) tests. These testing methods can’t take into consideration the
S. Fischer, A. Nemeth, D. Harrach, E. Juhasz   +3 more
doaj   +1 more source

Wear of sharp aggregates in a rotating drum

EPJ Web of Conferences, 2017
Aggregates constituting ballast layer wear due to the continuous passage of trains and during the necessary maintenance operations of the track. In order to develop efficient solutions for ballasted tracks design and maintenance, a proper knowledge of ...
Deiros Quintanilla Ivan, Combe Gaël, Emeriault Fabrice, Toni Jean-Benoît, Voivret Charles, Ferellec Jean François   +5 more
doaj   +1 more source

Metodestudium av micro-Deval for alternative fraksjoner [PDF]

, 2022
Den europeiske standarden for bestemmelse av motstand mot slitasje ved bruk av micro-Deval, EN 1097-1, er under revisjon. I et høringsutkast for denne revisjonen, prEN 1097 1, er det beskrevet to nye metoder som omhandler testing på fine fraksjoner (0.25/
Mathisen, Simen
core  

Investigation of evaluation indicators of agglomeration degree of recycled asphalt pavement materials

Frontiers in Materials
High-content reclaimed asphalt pavement (RAP) utilization is becoming a promising direction to achieve sustainable pavement maintenance. However, the agglomerate degree of RAP materials is hard to be accurately quantified.
Zhixin Lu, Fucheng Guo, Peilin Liu, Peilin Liu   +3 more
doaj   +1 more source

Estimation Of Los Angeles And Micro Deval Abrasion Values For Gneiss And Granite Using Anfis Approach

, 2020
Gneisses and granites mechanical properties knowledge such as the Los Angeles and Micro-Deval coefficients is very important for the engineer when designing and building civil engineering works. Laboratories test often performed to obtain Los Angeles and
Salami, Adekunlé A., Adekunlé A. Salami, Ampah Kodjo Christophe Johnson, Pachoukova, Irina, Ayité S. A. Ajavon, Ajavon, Ayité S. A., Irina Pachoukova, Johnson, Ampah Kodjo Christophe   +7 more
core   +1 more source

Improving Aggregate Abrasion Resistance Prediction via Micro-Deval Test Using Ensemble Machine Learning Techniques

Engineering Journal
Aggregate is the most extracted material from the world's mines and widely used in civil and construction projects. The Micro-Deval abrasion test (MD) is one of the most important tests that provides characteristics of crushed aggregates that show their ...
Alireza Roshan, Magdy Abdelrahman
openaire   +3 more sources

From Practitioner to Scholar: A Collaborative Autoethnography of PhD Students' Research on Evaluation Journeys

New Directions for Evaluation, Volume 2025, Issue 187, Page 67-82, Fall 2025.
ABSTRACT There has been limited attention to the role of research on evaluation (RoE) in PhD‐level evaluator education. Previous research suggests that evaluator education doctoral programs have multiple purposes to prepare practitioners and researchers, thus creating an unnamed tension where evaluation practice is the focus and RoE has not been ...
Amanda Sutter, Allison Prieur, Valerie Marshall, Rachael R. Kenney, Kari Ross Nelson, Christine Abagat Liboon   +5 more
wiley   +1 more source

Predictive Analytics in Construction: Multi-Output Machine Learning Models for Abrasion Resistance

Buildings
This study aims to accurately predict abrasion resistance, measured through the Los Angeles (LA) abrasion test, and modulus of elasticity, assessed using the Micro-Deval Abrasion (MDA) test, to support structural integrity and efficient material use in ...
Shaheen Mohammed Saleh Ahmed, Hakan Güneyli, Süleyman Karahan   +2 more
doaj   +1 more source

Physico‐Mechanical, Mineralogy, and Microstructural Properties and Durability of Mortars Made With Alluvial Sands

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
Concrete structures built from local materials are prolific, and mastery of their intrinsic properties is a guarantee of rational use. This study, based on an experimental approach, analyzes the construction potential of three alluvial sands (Mandikoum [MA], Ndom [ND], and Vack [VA]) used in Adamawa.
Seunkole Bila Lamou Cyrille, Manjia Marcelline Blanche, Tchapga Gniamsi Guy Molay, Mambou Ngueyep Luc Leroy, Mache Jacques Richard, Tiegoum Wembe Japhet, Mazié Gilbert, Tchinzie Emmanuel, Arnab Biswas   +8 more
wiley   +1 more source