A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effects of Temperature on Creep Behavior of Compacted Recycled Asphalt Pavement
AbstractRecycled asphalt pavement (RAP) can be beneficially used as alternative construction material in geotechnical applications, but characterizing its creep response is important to account for potential viscous effects attributable to the material’s asphalt content. Effects of elevated temperature (35 and 50°C) on creep behavior of compacted RAP specimens were investigated through temperature-controlled triaxial compression tests at sustained deviator stresses. RAP compacted at room temperature (22°C) and subjected to deviator stress at elevated temperature showed creep strain and strain rate that systematically increased with increasing temperature. Time to creep rupture decreased with increasing temperature. Compaction at elevated temperature resulted in denser specimens and reduced creep strain and strain rate. Temperature effects were incorporated into a creep model that may be used to estimate strain rate of RAP at elevated temperatures. Construction of structural fills containing RAP is recommended during warm months of the year to minimize subsequent creep strain and potential for creep rupture.
Effects of Temperature on Creep Behavior of Compacted Recycled Asphalt Pavement
AbstractRecycled asphalt pavement (RAP) can be beneficially used as alternative construction material in geotechnical applications, but characterizing its creep response is important to account for potential viscous effects attributable to the material’s asphalt content. Effects of elevated temperature (35 and 50°C) on creep behavior of compacted RAP specimens were investigated through temperature-controlled triaxial compression tests at sustained deviator stresses. RAP compacted at room temperature (22°C) and subjected to deviator stress at elevated temperature showed creep strain and strain rate that systematically increased with increasing temperature. Time to creep rupture decreased with increasing temperature. Compaction at elevated temperature resulted in denser specimens and reduced creep strain and strain rate. Temperature effects were incorporated into a creep model that may be used to estimate strain rate of RAP at elevated temperatures. Construction of structural fills containing RAP is recommended during warm months of the year to minimize subsequent creep strain and potential for creep rupture.
Effects of Temperature on Creep Behavior of Compacted Recycled Asphalt Pavement
Soleimanbeigi, Ali (author) / Yin, Jie / Edil, Tuncer B / Likos, William J
2017
Article (Journal)
English
BKL:
56.20
Ingenieurgeologie, Bodenmechanik
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