Impact of Compaction Ratio, Loading Period and Environmental Condition on Compressional Behavior of Foam Glass Aggregate

Due to the big granular size nature of foam glass aggregate which utilized as light weight material in a variety of civil engineering applications. Investigating the impact of compaction ratio, loading period and environmental condition on compressional behavior of the material is highly appreciated. In this study, a series of static compression loads starting from 50 kPa to 300 kPa with 50 kPa interval were applied on foam glass aggregate samples which prepared with four different compaction ratios (10%, 20%, 30%, and 40%). The results showed a significant decrease in vertical strain values due to elevating compaction ratios, especially after 20% compaction. The long-term loading stage reviled that the material’s strain values are not significantly time-dependent, especially when the material has been compacted more than 20%. By compacting the material more than 20%, the effect of submergence disappeared on the compressional behavior of foam glass aggregate for the selected loading range. The PLAXIS 2D numerical analysis outputs showed an entire match with the experimental compression test results through the MC model, which can be considered a reliable method to get the material's stiffness under same load circumstances.