| 刘 云,张 康,冯恩娟,赵洪义,刘福田.镍铁渣地质聚合物的制备及其性能研究*[J].水泥工程,2017,30(2):13-17 |
| 镍铁渣地质聚合物的制备及其性能研究* |
| Preparation and property research of ferronickel slag geopolymer |
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| DOI： |
| 中文关键词: 镍铁渣 碱激发 地质聚合物 强度 耐久性 |
| 英文关键词: ferronickel slag alkali activators geopolymer compressive strength durability |
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| 中文摘要: |
| 以镍铁渣为主要原料，通过碱激发制备了地质聚合物胶凝材料。采用正交试验研究了工艺参数对地质聚合物抗压强度的影响，研究结果表明：在水玻璃模数为2.4、碱性激发剂掺量为12% 和水灰比为0.28时，制备的地质聚合物28 d抗压强度高达97.62 MPa，并且具有良好的耐久性。由XRD可知，镍铁渣地质聚合物中有无定型硅铝酸盐相生成，表明发生了水化反应。FTIR表明，生成了Si-O-T（Si，Al）和Al-O-Si三维网络结构。SEM微观形貌分析显示，所制备镍铁渣地质聚合物的孔隙率较低，结构致密。 |
| 英文摘要: |
| Geopolymers cementitious material is prepared by using ferronickel slag as raw material under alkaline activator. Study the effect of process parameters on the compressive strength of geopolymers by orthogonal experiment.The results show that when the sodium silicate modulus is 2.4， alkaline activator content is 12% and water cement ratio is 0.28， the geopolymers have high 28 d compressive strength at 97.62 MPa， and have excellent durability. XRD analysis shows that the ferronickel slag geopolymers have amorphous aluminosilicate phase formation， indicating that the hydration reaction occurs. FTIR analysis shows that the reaction of the geopolymers generate Si-O-T （Si， Al） and Al-O-Si three-dimensional network. The preparation of ferronickel slag geological polymer has low porosity, compact structure by SEM microstructure analysis. |
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