Modified GFRC for Durable Underground Construction
| Autor: | Alexey Kharitonov, Yuri Pukharenko, Antonina Ryabova |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Silica fume Glass fiber 02 engineering and technology General Medicine 021001 nanoscience & nanotechnology 01 natural sciences Compressive strength Flexural strength Creep 0103 physical sciences Composite material 0210 nano-technology Reinforcement Engineering(all) Metakaolin Shrinkage |
| Zdroj: | Procedia Engineering. 165:1152-1161 |
| ISSN: | 1877-7058 |
| DOI: | 10.1016/j.proeng.2016.11.833 |
| Popis: | The article interprets physical and mechanical properties of glass-fiber reinforcement concrete (GFRC) as a function of the reinforcement level and binder consumption. It also presents data on flexural and compression strength of GFRC. The correlation between long-term strain (creep and shrinkage) and the reinforcement level has been identified as well. We have established that adding glass fiber would cause significant growth of flexural strength accompanied, however, with a slight decrease in compressive strength. Fiber reinforcing reduces and shrinkage by almost twofold. Experiments have proved that adding high-reactivity metakaolin as modifier will lead to a greater increase in flexural and compressive strength than usage of microsilica or fulleroid nanomodifier. This relation also holds for glass fiber which is not alkali-resistant. The obtained results may be used to evaluate the effect of various modifiers on the properties of GFRC. |
| Databáze: | OpenAIRE |
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