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A platform for research: civil engineering, architecture and urbanism
Assessing Moisture-Induced Fatigue Cracking in Asphalt Mixtures
https://orcid.org/https://orcid.org/0000-0002-0417-3297
https://orcid.org/https://orcid.org/0000-0002-1125-2196
https://orcid.org/https://orcid.org/0000-0002-2940-6309
One of the primary concerns in asphalt pavements is fatigue cracking of the surface course, which is influenced by both climatic and traffic factors, along with constituent properties. This chapter aims to assess alterations in the fatigue life of asphalt mixtures due to moisture-induced damage. Three mixtures were investigated: a baseline mixture utilizing acidic aggregates and a 50/70 neat binder (M1), a mix containing an amine-based anti-stripping additive (M2), and a third mixture containing hydrated lime among the aggregates (M3). The testing methods encompassed dry–wet evaluations, utilizing Indirect Tensile Strength (ITS), Dynamic Modulus, and Tension–Compression Fatigue tests. The findings suggest that the ITS ratio provides accurate insights into the reduction in fatigue life observed across different parameters and the effectiveness of various additives in mitigating the distress. A noteworthy observation is that testing conducted without moisture may lead to an overestimation of fatigue life for the materials under consideration.
Assessing Moisture-Induced Fatigue Cracking in Asphalt Mixtures
https://orcid.org/https://orcid.org/0000-0002-0417-3297
https://orcid.org/https://orcid.org/0000-0002-1125-2196
https://orcid.org/https://orcid.org/0000-0002-2940-6309
One of the primary concerns in asphalt pavements is fatigue cracking of the surface course, which is influenced by both climatic and traffic factors, along with constituent properties. This chapter aims to assess alterations in the fatigue life of asphalt mixtures due to moisture-induced damage. Three mixtures were investigated: a baseline mixture utilizing acidic aggregates and a 50/70 neat binder (M1), a mix containing an amine-based anti-stripping additive (M2), and a third mixture containing hydrated lime among the aggregates (M3). The testing methods encompassed dry–wet evaluations, utilizing Indirect Tensile Strength (ITS), Dynamic Modulus, and Tension–Compression Fatigue tests. The findings suggest that the ITS ratio provides accurate insights into the reduction in fatigue life observed across different parameters and the effectiveness of various additives in mitigating the distress. A noteworthy observation is that testing conducted without moisture may lead to an overestimation of fatigue life for the materials under consideration.
Assessing Moisture-Induced Fatigue Cracking in Asphalt Mixtures
https://orcid.org/https://orcid.org/0000-0002-0417-3297
https://orcid.org/https://orcid.org/0000-0002-1125-2196
https://orcid.org/https://orcid.org/0000-0002-2940-6309
One of the primary concerns in asphalt pavements is fatigue cracking of the surface course, which is influenced by both climatic and traffic factors, along with constituent properties. This chapter aims to assess alterations in the fatigue life of asphalt mixtures due to moisture-induced damage. Three mixtures were investigated: a baseline mixture utilizing acidic aggregates and a 50/70 neat binder (M1), a mix containing an amine-based anti-stripping additive (M2), and a third mixture containing hydrated lime among the aggregates (M3). The testing methods encompassed dry–wet evaluations, utilizing Indirect Tensile Strength (ITS), Dynamic Modulus, and Tension–Compression Fatigue tests. The findings suggest that the ITS ratio provides accurate insights into the reduction in fatigue life observed across different parameters and the effectiveness of various additives in mitigating the distress. A noteworthy observation is that testing conducted without moisture may lead to an overestimation of fatigue life for the materials under consideration.
Assessing Moisture-Induced Fatigue Cracking in Asphalt Mixtures
Carter, Alan (editor) / Vasconcelos, Kamilla (editor) / Dave, Eshan (editor) / da Silva, Lucas Sassaki Vieira (author) / Bastos, Juceline Batista dos Santos (author) / Soares, Jorge Barbosa (author)
International Symposium on Asphalt Pavement & Environment ; 2024 ; Montreal, QC, Canada
14th International Conference on Asphalt Pavements ISAP2024 Montreal ; Chapter: 74 ; 443-448
2024-12-24
6 pages
Article/Chapter (Book)
Electronic Resource
English
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