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首页> 外文期刊>Journal of Materials Engineering and Performance >Synthesis, Characterization and Properties of Fly Ash Based Geopolymer Materials
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Synthesis, Characterization and Properties of Fly Ash Based Geopolymer Materials

机译：粉煤灰基地质聚合物材料的合成，表征及性能

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摘要

In this present investigation, geopolymer specimens were prepared by fly ash powder and various concentrations of NaOH solution maintained at 10 molar (M), 12 molar (M) and 14 molar (M) along with Na2SiO3 solution followed by artificial curing at 60 degrees C up to 50 h. Na2SiO3 solution-to-NaOH solution ratio and liquid-to-solid mass ratio are maintained at 1 and 0.3, respectively. The test results indicated that the compressive strength of geopolymer samples was increased with the increase in NaOH concentration from 10 M to 14 M, with the addition of Na2SiO3 solution to NaOH solution and with curing time as well. The maximum compressive strength value of 32 and 73 MPa was achieved for the geopolymer sample, namely FAG14NH and FAG14NHNS. The geopolymerization behavior and geopolymer specimen were explained by means of various techniques such as ICC, FESEM, HRTEM, XRD and FTIR. Further hardness and thermal behavior of geopolymer specimens were also studied in this investigation.
机译：在本研究中，地质聚合物样品由粉煤灰粉末和各种浓度的NaOH溶液（保持在10摩尔（M）、12摩尔（M）和14摩尔（M））以及Na2SiO3溶液制备，然后在60℃下人工固化至50小时。Na2SiO3溶液与NaOH溶液的比率和液固质量比分别保持在1和0.3。试验结果表明，随着NaOH浓度从10 M增加到14 M，Na2SiO3溶液加入到NaOH溶液中，以及固化时间的延长，地质聚合物样品的抗压强度增加。地质聚合物样品（即FAG14NH和FAG14NHNS）的最大抗压强度值分别为32和73 MPa。通过ICC、FESEM、HRTEM、XRD和FTIR等技术解释了地质聚合物的聚合行为和样品。本研究还进一步研究了地质聚合物试样的硬度和热行为。

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