| Autor: |
R. Ramesh Kumar, V. Syam Prakash, B. Geethakumari |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
Materials Science Forum. 866:88-93 |
| ISSN: |
1662-9752 |
| DOI: |
10.4028/www.scientific.net/msf.866.88 |
| Popis: |
The influence of three mineral admixtures, Silica Fume (SF), Fly Ash (FA), and Rice Husk Ash (RHA) on the fracture energy of Refractory Cement (RC) over a wide range of temperature from 300K to 1173K is studied. The optimum percentage replacement of RC by these admixtures is found to be around 0.5 for all the temperatures considered but for FA. Fracture energy of control (0% admixture) and blended RC (with 0.5% admixture) are determined by three point bending of notched beam specimens. Fracture energy of RC blended with the three mineral admixtures is lower than that of control RC for temperature range of 300K to 873K. But at elevated temperature of 1173K, blending plays its role as an admixture. Experimental results are corroborating with XRD. It is observed that phenomenon of pseudo dryness of Gismondine in the blended RC causes higher fracture energy which is double that of RC only at 1173K. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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