[1]雷东移,郭丽萍,李东旭.原状脱硫石膏基水硬性胶凝材料体系的力学性能[J].东南大学学报(自然科学版),2018,48(1):157-164.[doi:10.3969/j.issn.1001-0505.2018.01.024]
　Lei Dongyi,Guo Liping,Li Dongxu.Mechanical properties of undisturbed desulfurization gypsum-based hydraulic cementitious material system[J].Journal of Southeast University (Natural Science Edition),2018,48(1):157-164.[doi:10.3969/j.issn.1001-0505.2018.01.024]
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原状脱硫石膏基水硬性胶凝材料体系的力学性能()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
48
期数:
2018年第1期
页码:
157-164
栏目:
化学化工
出版日期:
2018-01-20

文章信息/Info

Title:
Mechanical properties of undisturbed desulfurization gypsum-based hydraulic cementitious material system
作者:
雷东移1; 2; 郭丽萍1; 2; 李东旭3
1东南大学材料科学与工程学院, 南京 211189; 2东南大学江苏省土木工程材料重点实验室, 南京 211189; 3南京工业大学材料科学与工程学院, 南京 210009
Author(s):
Lei Dongyi1; 2;  Guo Liping1; 2;  Li Dongxu3
1School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
2Jiangsu Key Laboratory of Construction Materials, Southeast University, Nanjing 211189, China
3College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China
关键词:
原状脱硫石膏;  碱性激发剂;  水胶比;  消化时间;  蒸汽养护制度
Keywords:
undisturbed desulfurization gypsum;  alkaline activator;  water-binder ratio;  digestion time;  steam curing conditions
分类号:
TQl77
DOI:
10.3969/j.issn.1001-0505.2018.01.024
摘要:
通过系统研究矿渣原状脱硫石膏质量比、水泥、碱性激发剂生石灰粉、水胶比和减水剂对原状脱硫石膏水硬性胶凝材料体系力学性能的影响,确定最佳配合比.分析消化时间、养护制度对胶凝材料体系力学性能的影响,确定最佳制备工艺.试验结果表明,矿渣与原状脱硫石膏的最佳质量比为4∶6,水泥、生石灰、减水剂的最佳掺量分别为8%, 7%, 0.7%,最佳水胶比为0.26,这些组分均在脱硫石膏与矿渣质量和的基础上按质量比外掺.该原状脱硫石膏水硬性胶凝材料体系的最佳消化时间为18 h,最佳蒸养时长为21 h,最佳蒸养温度为60 ℃.
Abstract:
The influences of the mass ratio of slag to desulfurization gypsum, cement, alkaline activator quicklime powder, water-binder ratio and water-reducing agent on the mechanical properties of the undisturbed desulfurization gypsum-based hydraulic cementitious material system were studied systematically to determine the optimum mix proportion. The effects of the digestion time and the curing conditions on the mechanical properties of the cementitious material system were also investigated to determine the optimum preparation process. The results show that the optimum mass ratio of slag to desulfurization gypsum is 4∶6.The optimum mass fractions of cement, quicklime and water-reducing agent are 8%, 7% and 0.7%, respectively. The optimum water-binder ratio is 0.26. These components are mixed by the mass ratio on the basis of the overall mass of gypsum and slag. The optimum digestion time of the undisturbed desulfurization gypsum hydraulic cementitious material system is 18 h. The optimum steam curing age is 21 h and the optimum steam temperature is 60 ℃.

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备注/Memo

备注/Memo:
收稿日期: 2017-06-04.
作者简介: 雷东移(1986—),男,博士生;郭丽萍(联系人),女,博士,副教授,博士生导师,guoliping691@163.com.
基金项目: 国家自然科学基金资助项目(51378113, 51438003)、国家重点基础研究发展计划(973计划)资助项目(2015CB655102)、东南大学优秀博士生学位论文基金资助项目(YBJJ1725).
引用本文: 雷东移,郭丽萍,李东旭.原状脱硫石膏基水硬性胶凝材料体系的力学性能[J].东南大学学报(自然科学版),2018,48(1):157-164. DOI:10.3969/j.issn.1001-0505.2018.01.024.
更新日期/Last Update: 2018-01-20