Abstract
Foam glass aggregates are used as a lightweight material in various civil engineering applications due to their big granular nature. Investigating the impact of compaction ratio, loading period, and environmental condition on the compressional behavior of the material is highly appreciated. In this study, after examining the pore microstructure and elements of the material, a series of static compression loads starting from 50 kPa to 300 kPa with 50 kPa intervals were applied on foam glass aggregate samples which were prepared with four different compaction ratios (10%, 20%, 30%, and 40%). The density and porosity of the material at different compaction ratios were also tested. The results showed a significant decrease in vertical strain values, from 6.2% at 10% compaction to 0.8% at 40% compaction. The compressibility rate significantly reduced, especially after 20% compaction. Calculated Eoed ranged between 7.9 MPa at 10% compaction under 50 kPa loading to 23 MPa at 40% compaction under 300 kPa loading. The long-term loading stage revealed that the material's strain values are not significantly time-dependent, especially when the material has been compacted more than 20%. The porosity of the samples was only reduced by 3% after compacting the aggregate to a 40% ratio. The influence of submergence on the compressional behavior of foam glass aggregate for the given loading range was eliminated when the material was compacted by more than 20%.
Published Version
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