Abstract
This study investigates the ability of six fly ashes to control ASR (alkali-silica reaction) generated by recycled glass sand. Specifically, this study evaluates the chemical index model's (Malvar and Lenke, 2006 [1]) capacity to accurately predict the fly ash dosage necessary to mitigate ASR. Results show the current model is conservative for low lime (CaO <10%) ashes (∼9% greater dosage than experimental results) and quite conservative for higher CaO (>10%) ashes (∼36% greater dosage than experimental results). Conclusions suggest revising model parameters can provide accurate predictions for low CaO ashes and moderately conservative predictions for higher CaO ashes.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 166-171 |
| Number of pages | 6 |
| Journal | Construction and Building Materials |
| Volume | 64 |
| DOIs | |
| State | Published - Aug 14 2014 |
All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Building and Construction
- Materials Science(all)
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Wright, J. R., Shafaatian, S., & Rajabipour, F. (2014). Reliability of chemical index model in determining fly ash effectiveness against alkali-silica reaction induced by highly reactive glass aggregates. Construction and Building Materials, 64, 166-171. https://doi.org/10.1016/j.conbuildmat.2014.04.042