| 摘要: |
| 以玄武岩粉末-电石渣固体废弃物凝胶体系为主料，掺入脱硫石膏，利用水热固化技术制备了人造石颗粒材料，分析了不同水热固化温度、水热固化时间、钙硅比对人造石颗粒强度及物相变化规律的影响.结果表明：人造石颗粒的抗压强度高于30 MPa，电石渣可替代消石灰；人造石颗粒的最佳制配方案为钙硅比0.9、温度200 ℃、时间12 h以及脱硫石膏添加量约5%. |
| 关键词: 玄武岩粉末 电石渣 脱硫石膏 水热固化 抗压强度 人造石颗粒 |
| DOI：10.3969/j.issn.1007-9629.2023.04.008 |
| 分类号:TU528.01 |
| 基金项目:国家自然科学基金资助项目（52178327） |
|
| Hydrothermal Solidification Mechanism of Basalt Powder-Carbide Slag-Desulfurized Gypsum System |
|
KONG Gangqiang, YU Yang, CHEN Yonghui, ZHOU Yang, CHEN Geng
|
|
Key Laboratory of Geomechanics and Embankment Engineering of Ministry of Education， Hohai University， Nanjing 210024， China
|
| Abstract: |
| Using the gel system of basalt powder-carbide slag solid waste as the main material and adding desulfurized gypsum， the artificial stone particles were prepared by hydrothermal curing technology. The effects of different hydrothermal curing temperatures， hydrothermal curing time and calcium-silicon ratio on the strength and phase variation of artificial stone particles were analyzed. The results show that the compressive strength of artificial stone particles is higher than 30 MPa， and calcium carbide slag can replace slaked lime. The optimal preparation scheme of artificial stone particles is as follows： calcium-silicon ratio is 0.9， temperature is 200 ℃， time is 12 h and desulfurization gypsum content is about 5%. |
| Key words: basalt powder carbide slag desulfurized gypsum hydrothermal solidification compressive strength artificial stone particle |
