| High Strength Lightweight Glass-Ceramics Sintered
from Fly Ash: A Potential Proppant Material |
P. Chen, H.-Y. He* and Z. He
pages : 124-129
DOI : 10.1080/0371750X.2013.817582 |
| Abstract |
| High strength lightweight glass-ceramics were sintered with fly ash as the main raw material. The effects of
utilization rate of fly ash, nucleating agents, sintering temperature and heating rate were studied. The optimum
utilization rate was found to be 60%. The nucleating agents enhanced the properties of the proppant in the order:
Fe2O3 TiO2 MnO2 Cr2O3. The enhancement was much pronounced with the use of 6 wt% Fe2O3 or 5 wt% Fe2O3
along with 1 wt% TiO2. The sample sintered at 1400oC for 30 min at a heating rate of 5oC.min–1 showed
optimum properties, viz. high strength (120.97-125.45 MPa), low water absorption (0.57-0.82%) and low density
(1.32-1.56 g.cm–3). The fabricated glass-ceramics may be assumed to be a promising proppant material for hydaulic
fracturing production of petroleum. |
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