Reliability comparison of two-point and four-point bending tests for coarse aggregate mixtures
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F24%3APU154940" target="_blank" >RIV/00216305:26110/24:PU154940 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.5592/CO/cetra.2024.1638" target="_blank" >https://doi.org/10.5592/CO/cetra.2024.1638</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5592/CO/cetra.2024.1638" target="_blank" >10.5592/CO/cetra.2024.1638</a>
Alternative languages
Result language
angličtina
Original language name
Reliability comparison of two-point and four-point bending tests for coarse aggregate mixtures
Original language description
This paper investigates the reliability and comparative performance of two European standardized methods for assessing the stiffness and fatigue characteristics of asphalt mixtures with coarse aggregates up to 32 mm in grain size. European standards currently prescribe many various approaches to testing fatigue properties of asphalt mixtures, mainly two distinct methodologies: the two point bending test and the four point bending test. Despite the availability of both methods, certain laboratories predominantly prefer the two point bending test. The study focuses on a comprehensive set of tests conducted on asphalt mixtures containing coarse aggregates with a maximum grain size of 32 mm, applying both the two point and four point bending tests. The primary objective is to assess the reliability of these methods, particularly in the context of larger aggregate sizes. A crucial consideration arises from the fact that the two point bending test uses smaller specimens, potentially leading to an increased likelihood of test specimen failure in coarse aggregate asphalt mixtures. The experimental approach involves subjecting asphalt specimens to fatigue loading using both testing methods, systematically analysing the resulting data, and comparing the stiffness and fatigue performance outcomes. The findings contribute valuable insights into the appropriateness and reliability of the chosen testing methodologies, aiding practitioners and researchers in making informed decisions regarding the selection of fatigue testing protocols for asphalt mixtures with coarse aggregates.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Road and Rail Infrastructure VIII, Proceedings of the Conference CETRA 2024
ISBN
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ISSN
1848-9850
e-ISSN
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Number of pages
8
Pages from-to
595-602
Publisher name
Neuveden
Place of publication
Croatia, Zagreb
Event location
Dubrovnik
Event date
May 15, 2024
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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