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Chin. J. Process Eng. ›› 2018, Vol. 18 ›› Issue (2): 382-386.DOI: 10.12034/j.issn.1009-606X.217287

• Process & Technology • Previous Articles     Next Articles

Effect of Alkali-activator on Compressive Strength of Steel Slag Cementations Materials

Hao ZHANG1,2,5*,  Lin WANG3,  Hongming LONG2,4,5   

  1. 1. School of Civil Engineering and Architecture, Anhui University of Technology, Ma?anshan, Anhui 243032, China; 2. Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Anhui University of Technology, Ministry of Education, Ma?anshan, Anhui 243002, China; 3. Shanghai Baosteel New Building Materials Technology Co., Ltd., Shanghai 201900, China; 4. State Key Laboratory of Advanced Metallurgy, University of Science and Technology of Beijing, Beijing 100083, China; 5. School of Metallurgical Engineering, Anhui University of Technology, Ma?anshan, Anhui 243032, China
  • Received:2017-08-07 Revised:2017-09-27 Online:2018-04-22 Published:2018-04-10
  • Contact: ZHANG Hao fengxu19821018@163.com

碱激发剂对钢渣胶凝材料抗压强度的影响

张 浩1,2,5*，王 林3， 龙红明2,4,5     

  1. 1. 安徽工业大学建筑工程学院，安徽 马鞍山 243032；2. 安徽工业大学冶金减排与资源综合利用教育部重点实验室，安徽 马鞍山 243002； 3. 上海宝钢新型建材科技有限公司，上海 201900；4. 北京科技大学钢铁冶金新技术国家重点实验室，北京 100083； 5. 安徽工业大学冶金工程学院，安徽 马鞍山 243032
  • 通讯作者: 张浩 fengxu19821018@163.com
  • 基金资助:
    中国博士后科学基金资助项目;冶金减排与资源综合利用教育部重点实验室(安徽工业大学)资助项目;钢铁冶金新技术国家重点实验室（北京科技大学）资助项目

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Abstract: Alkali solution was prepared with Na2SiO3, NaOH and Ca(OH)2, then steel slag was activated using alkali solution obtaining zeolite hydrochemical products. The effects of Na2SiO3 amount, NaOH amount and Ca(OH)2 amount on the compressive strength of the alkali steel slag cementations materials were studied. The optimal compressive strengths of materials were characterized. The results showed that Na2SiO3 has significant effect on 7 d compressive strength of materials, NaOH had significant effect on 3 d compressive strength of materials, Ca(OH)2 has significant effect on 28 d compressive strength of materials. When Na2SiO3 amount was 11.25 g, NaOH amount is 4.50 g and Ca(OH)2 amount is 6.75 g, the compressive strength of materials was the best. The addition of alkali solution is beneficial to the formation of zeolite hydrochemical products in the gelation system.

Key words: alkali solution, alkali steel slag, steel slag, zeolite hydrochemical products, mechanical property

摘要： 以Na2SiO3, NaOH和Ca(OH)2制备碱性溶液，对钢渣进行活化处理得到碱钢渣胶凝材料，考察了Na2SiO3, NaOH和Ca(OH)2用量对材料的抗压强度影响，并对最优抗压强度的碱钢渣胶凝材料进行了表征. 结果表明，Na2SiO3对碱钢渣胶凝材料的7 d抗压强度影响显著，NaOH对材料的3 d抗压强度影响显著，Ca(OH)2对材料的28 d抗压强度影响显著. 当Na2SiO3, NaOH和Ca(OH)2用量分别为11.25, 4.50和6.75 g时，材料的抗压强度最优. 加入碱性溶液有利于胶凝体系中形成沸石类水化产物.

关键词: 碱溶液, 碱钢渣, 钢渣, 沸石类水化产物, 力学性能