What question did this study set out to answer?

This study aims to evaluate the thermal characteristics of foam glass aggregates (FGA) under different temperatures, moisture levels, and compaction methods.

May 24, 2026Journal of Materials in Civil Engineering

Evaluating Thermal Characteristics of Foam Glass Aggregates as an Insulation Layer in Asphalt Pavements

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This study aims to evaluate the thermal characteristics of foam glass aggregates (FGA) under different temperatures, moisture levels, and compaction methods.
Examined thermal behavior of FGA with varying moisture content, temperature, and compaction.
Developed a heat transfer-based finite element simulation for predicting sample requirements and dwell time.
Utilized response surface methodology to model thermal conductivity based on conditions.
FGA thermal conductivity increased eightfold with rising moisture content, indicating significant sensitivity.
Minor effects observed from temperature decrease and increased compaction on thermal behavior.
Statistical analysis showed minimal interaction between temperature and moisture above freezing, with partial substitution of FGA by tire chips enhancing stability.

Authors

LGLakshmana Ravi Raj GaliUnited States Army Corps of Engineers AGArunkumar GoliUnited States Army Corps of Engineers AAAyman AliUnivates

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Implication

Randomized trial evaluates thermal insulation in asphalt pavements, suggesting sustainable alternatives for extreme weather conditions.

Cite This Study

Gali et al. (2026) studied this question.

synapsesocial.com/papers/6a12969048a0ea16656736ba https://doi.org/10.1061/jmcee7.mteng-22121

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Evaluating Thermal Characteristics of Foam Glass Aggregates as an Insulation Layer in Asphalt Pavements

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Discussion

Implication

Cite This Study

Evaluating Thermal Characteristics of Foam Glass Aggregates as an Insulation Layer in Asphalt Pavements

Key Points

Discussion

Implication

Cite This Study

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