Chemo-Mechanical Model for the Expansion of Concrete Due to Alkali Silica Reaction
| Autor: | Xingji Zhu, Goangseup Zi, Xiaoying Zhuang, Lianfang Sun |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Sodium 0211 other engineering and technologies chemistry.chemical_element 02 engineering and technology Calcium lcsh:Technology lcsh:Chemistry 021105 building & construction medicine General Materials Science Instrumentation lcsh:QH301-705.5 Fluid Flow and Transfer Processes Chemo mechanical lcsh:T Process Chemistry and Technology Swelling capacity alkali silica reaction General Engineering 021001 nanoscience & nanotechnology Alkali metal Durability lcsh:QC1-999 Computer Science Applications numerical modeling chemistry Chemical engineering lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 Alkali–silica reaction durability concrete Swelling medicine.symptom 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) lcsh:Physics |
| Zdroj: | Applied Sciences Volume 10 Issue 11 Applied Sciences, Vol 10, Iss 3807, p 3807 (2020) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app10113807 |
| Popis: | A chemo-damage model is proposed to predict the expansion caused by the alkali silica reaction (ASR). The model covers the formation of the pre-expansion gel driven by alkali and the swelling of the gel driven by water. The swelling capacity of the ASR gel is quantified by the sodium to calcium ratio in the pore solution. The bound alkali in the gel recycled by calcium is also considered in this model. Both external alkali supply and internal alkali released from aggregates are included. Several sets of experimental data are compared with the simulation results for the verification of the model. |
| Databáze: | OpenAIRE |
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