烧碱激发钢渣粉在淤泥质土中的试验研究

吴燕开; 胡晓士; 胡锐; 石玉斌; 韩天; 于佳丽

doi:10.11779/CJGE201712006

烧碱激发钢渣粉在淤泥质土中的试验研究 English Version

1. 山东科技大学山东省土木工程防灾减灾重点实验室,山东青岛266590;
2. 山东科技大学土木工程与建筑学院,山东青岛 266590

基金项目: 国家自然科学基金项目（41372288）; 山东科技大学科研创新团队支持项目（2015KYDT104）

详细信息

作者简介:
吴燕开（1976- ）,男,副教授,博士,主要从事地下工程支护、软基处理等方面的研究。E-mail: wuyankai2000@163.com。

中图分类号: TU43
计量
- 文章访问数: 0313
- HTML全文浏览量: 0
- PDF下载量: 0280
出版历程
- 收稿日期: 2017-02-06
- 发布日期: 2017-12-24

Experimental study on caustic soda-activated steel slag powder in muddy soil

1. Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Qingdao 266590, China;
2. Shandong University of Science and Technology, Qingdao 266590, China

摘要

摘要: 钢渣粉是炼钢生产后排出的工业废渣经球磨后形成的一种粉末状产物,与水泥有着相似的性质,但活性较差,需对其进行激发处理。将烧碱（NaOH）作为钢渣粉的激发剂,研究在不同烧碱掺入量下,钢渣粉与水泥混合后对淤泥质土的固化效果。试验结果表明：未掺烧碱的钢渣-水泥固化土早期强度低,后期固化效果较好;掺入烧碱之后,在其激发作用下,钢渣粉的固化效果良好且可使固化土早强。钢渣-水泥固化土的无侧限抗压强度随着烧碱掺量的增加而出现先增大后减小的变化。对胶凝材料进行X射线衍射（XRD）分析,发现材料中有单硫型硫铝酸钙（AFm）物质生成,该物质可提高固化土的强度。
- 钢渣粉 /
- 淤泥土 /
- 烧碱 /
- 无侧限抗压强度 /
- X射线衍射
Abstract: The steel slag powder is a powdery product formed by ball milling after the industrial waste is discharged from steelmaking. It has similar properties to those of cement, but its activity is poor and it needs to be treated. Through the laboratory tests, caustic soda (NaOH) is used as the activator of the steel slag powder to study the effect of the slag powder and cement mixed on the silty soil under different caustic soda contents. The results show that the early strength of the steel slag-cement solidified soil is low, and the curing effect is better at the later stage. After the caustic soda is added, the curing effect of the steel slag powder is obvious. The unconfined compressive strength of the steel slag-cement solidified soil increases first and then decreases with the increase of activator dosage. The X-ray diffraction (XRD) analysis shows that there is a monosulfated calcium sulphoaluminate (AFm) in the mixture, which can enhance the strength of the solidified soil.
- steel slag powder /
- muddy soil /
- caustic soda /
- unconfined compressive strength /
- XRD

HTML全文

参考文献(21)

[1]	易耀林, 李晨, 孙川, 等. 碱激发矿粉固化连云港软土试验研究[J]. 岩石力学与工程学报, 2013, 32(9): 1821-1826. (YI Yao-lin, LI Chen, SUN Chuan, et al. Test on alkali-activated ground granulated blast-furnace slag (GGBS) for lianyungang soft soil stabilization[J]. Chinese Journal of Rock Mechanics and Engineering, 2013, 32(9): 1821-1826. (in Chinese))
[2]	杨爱武, 闫澍旺, 杜东菊, 等. 碱性环境对固化天津海积软土强度影响的试验研究[J]. 岩土力学, 2010, 31(9): 2930-2934. (YANG Ai-wu, YAN Shu-wang, DU Dong-ju, et al. Experimental study of alkaline environment effects on the strength of cement soil of Tianjin marine soft soil[J]. Rock and Soil Mechanics, 2010, 31(9): 2930-2934. (in Chinese))
[3]	李义凯, 刘福田, 周宗辉, 等. 复合激发剂活化钢渣制备复合胶凝材料研究[J]. 武汉理工大学学报, 2009, 31(4): 11-13. (LIU Yi-kai, LIU Fu-tian, ZHOU Zong-hui, et al. Study of improving the activity of steel slag powder using compound activator[J]. Journal of Wuhan University of Technology, 2009, 31(4) :11-13. (in Chinese))
[4]	张同生, 刘福田, 王建伟, 等. 钢渣安定性与活性激发的研究进展[J]. 硅酸盐通报, 2007, 26(5): 980-984. (ZHANG Tong-sheng, NIU Fu-tian, ZHOU Zong-hui, et al. Recent development of steel slag stability and activating activity [J]. Bulletin of the Chinese Ceramic Society, 2007, 26(5): 980-984. (in Chinese))
[5]	赵鸿.钢渣细度和掺量对钢渣复合水泥力学性能的影响[J]. 中国粉体技术, 2012, 18(3): 4-6. (ZHAO Hong. Influence of steel slag fineness and mixture amount on composite cement containing steel slag powders[J]. China Powder Science and Technology, 2012, 18(3): 4-6. (in Chinese))
[6]	FATHOLLAH Sajedi, HASHIN Abudul Razak. The effect of chemical activators on early strength of oxlinand Portland cement-slag mortars[J]. Construction and Building Materials 2010, 24: 1944-1951.
[7]	李玉祥, 王振兴, 冯敏, 等. 不同激发剂对钢渣活性影响的研究[J]. 硅酸盐通报, 2012, 31(2): 280-284. (LI Yu-xiang, WANG Zhen-xing, FENG Min, et al. Study on the effect of different activators on activation of steel slag[J]. Bulletin of the Chinese Ceramic Society, 2012, 31(2): 280-284. (in Chinese))
[8]	王强, 黎梦圆, 石梦晓. 水泥-钢渣-矿渣复合胶凝材料的水化特性[J]. 硅酸盐学报, 2014, 42(5): 629-634. (WANG Qiang, LI Meng-yuan, SHI Meng-xiao. Hydration properties of cement-steel-ground granulated blasé furnace Slag complex binder[J]. Journal of the Chinese Ceramic Society, 2014, 42(5): 629-634. (in Chinese))
[9]	殷素红, 高凡, 郭辉, 等. 石灰重构钢渣过程中的物相变化[J]. 华南理工大学学报(自然科学版), 2016, 42(6): 47-52. (YIN Su-hong, GAO Fan, GUO Hui, et al. Phase change of steel slag during reconstruction by line[J]. Journal of South China University of Technology (Natural Science Edition), 2016, 42(6): 47-52. (in Chinese))
[10]	LIU Qian, LIU Jia-xiang, QI Li-qian. Effects of temperature and carbonation curing on the mechanical properties of steel slag-cement binding materials[J]. Construction and Building Materials, 2016, 124: 999-1006.
[11]	NIKLIOĆ S, MARKOVIĆ I, JANKOVIĆ-Častvan. Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag [J]. Materials Letters, 2016, 176: 301-305.
[12]	MASON B. The constitution of some basic open-hearth slags[J]. J Iron Steel Inst, 1994(11): 69-80.
[13]	HU S G, WANG H X, ZHANG G Z, et al. Bonding and abrasion resistance of geopolymeric repair material made with steel slag[J]. Cement and Concrete Composites, 2008, 30(3): 239-244.
[14]	DAS B, PRAKASH S, REDDY P S R, et al. An overview of utilization of slag and sludge from steel industries[J]. Resources, Conservation and Recycling, 2007, 50(1): 40-57.
[15]	TSAKIRIDIS P E, PAPADIMITRIOU G D, TSIVLIS S, et al. Utilization of steel slag for Portland cement clinker production[J]. Journal of Hazardous Materials, 2008, 152(2): 805-811.
[16]	COALE R D. Cementitious properties of metallurgical slags[J]. Cement and Concrete Research, 1973(3): 81-92.
[17]	WU Yan-kai, HU Rui, HU Xiao-shi, et al. Mechanical properties of mucky cement soil improved by steel slag powder[J]. Electronic Journal of Geotechnical Engineering, 2016, 21: 10651-10664.
[18]	WANG Qiang, YAN Pei yu, HAN Song. Effect of steel slag on hydration of cement in hydration of composite cementitious material[J]. Chinese Science (Technical Sciences), 2011, 41(2): 170-176.
[19]	王强. 钢渣的胶凝性能及在复合胶凝材料水化硬化过程中的作用[D]. 北京: 清华大学, 2010. (WANG Qiang. Cementitious properties of steel slag and its role in the hydration and hardening process of complex binder[D]. Beijing: Tsinghua University, 2010. (in Chinese))
[20]	TAKEMOTO K, UCHIKAWA H. Hydration of pozzolanic cement[C]// The 7th International Congress on the Chemistry of Cement. Paris, 1980.
[21]	涂昆, 刘家祥, 邓侃. 钢渣粉和钢渣水泥的活性及水化机理研究[J]. 北京化工大学学报(自然科学版), 2015, 41(1): 62-68. (TU Kun, LIU Jia-xiang, DENG Kan. Study of the hydration behavior of steel slag and steel slag cement complex powders[J]. Journal of Beijing University of Chemical Technology (Natural Science), 2015, 41(1): 62-68. (in Chinese))

施引文献

资源附件(0)

计量

文章访问数:
HTML全文浏览量: 0
PDF下载量:
被引次数: 0

烧碱激发钢渣粉在淤泥质土中的试验研究 English Version

作者简介: 吴燕开（1976- ）,男,副教授,博士,主要从事地下工程支护、软基处理等方面的研究。E-mail: wuyankai2000@163.com。

计量

出版历程

Experimental study on caustic soda-activated steel slag powder in muddy soil

计量

出版历程

目录

作者简介:
吴燕开（1976- ）,男,副教授,博士,主要从事地下工程支护、软基处理等方面的研究。E-mail: wuyankai2000@163.com。