| 摘要: |
| 以磷石膏为原材料，利用碱激发技术制备人造骨料，并研究不同配合比对人造骨料性能的影响.结果表明：当水添加量为10%、水玻璃添加量（以Na2O含量计）为3%、成型压力为63 MPa、养护时间为28 d、水泥掺量为30%时，人造骨料的抗压强度达到25.16 MPa，吸水率为15.21%，堆积密度为1 156.4 kg/m3；骨料中的钙矾石等水化产物增强了人造骨料的强度. |
| 关键词: 磷石膏 碱激发技术 人造骨料 性能 |
| DOI：10.3969/j.issn.1007-9629.2024.04.012 |
| 分类号:TU526 |
| 基金项目: |
|
| Preparation of Calcined-Free Artificial Aggregate from Phosphogypsum and Its Performance |
|
MA Wenqing, LI Zimu, LI Canhua, ZHANG Lanyue, LI Minghui
|
|
Metallurgical Engineering School， Anhui University of Technology， Maanshan 243002， China
|
| Abstract: |
| Artificial aggregates were prepared from phosphogypsum as raw material by using alkali excitation technology. The effects of different ratios on the properties of artificial aggregates were studied. The results show that when the water addition is 10% and sodium silicate addition （calculated as Na2O content） is 3%， molding pressure is 63 MPa， curing time is 28 days， and cement content is 30%， the compressive strength of the artificial aggregate reaches 25.16 MPa， water absorption rate reaches 15.21%， and bulk density reaches 1 156.4 kg/m3. The hydration products such as ettringite in the aggregate enhance the strength of artificial aggregates. |
| Key words: phosphogypsum alkali excitation technology artificial aggregate property |
