Analysis of Active Mechanism of Chemical Activated Strontium Slag

Hongzhou Zhu; Li Ou; Daqian Wang; Lanxin Hu; Erhu Yan

doi:doi:10.11648/j.am.20190804.16

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Analysis of Active Mechanism of Chemical Activated Strontium Slag

Hongzhou Zhu, Li Ou, Daqian Wang, Lanxin Hu, Erhu Yan

Published in Advances in Materials (Volume 8, Issue 4)

Received: 16 October 2019 Accepted: 6 November 2019 Published: 21 November 2019

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Abstract

In order to improve the activity of strontium slag, the mixed cementitious material of strontium slag cement was prepared by adding 30% (mass fraction) of pulverized strontium slag into cement. Chemical activators such as Na₂SiO₄, NaOH, CaCl₂, NaCl, Ca(OH)₂, Na₂SO₄ were added to the cementitious material. The flexural and compressive strength values of 3d, 7d, 28d were obtained by mortar strength test, and were used as the base with standard samples. The mechanism of activator improving the activity of strontium slag is analyzed. CaCl₂ and NaCl are cement early strength agents. So the substitution of strontium slag with silica powder is compared. The strength of strontium slag is judged by principle analysis. The results show that NaOH and Ca(OH)₂ are beneficial to the activation of SiO₂ and Al₂O₃, but the amount of ettringite is large and the strength is reduced, so there is a certain active excitation for strontium slag, but the effect is not very good; the addition of Na₂SiO₄ causes damage to volume stability and it is the worst of all activators. the compressive strength increases rapidly in 3d and 7d after adding NaCl, so it is mainly to stimulate the early strength of cement; The 28d compressive strength of strontium slag cement containing CaCl₂ is higher than that of strontium slag cement containing other chemical activators, which can reach 91% of the compressive strength of cement mortar. It is preliminarily judged that CaCl₂ has an exciting effect on strontium slag and the exciting effect is obvious.

Published in	Advances in Materials (Volume 8, Issue 4)
DOI	10.11648/j.am.20190804.16
Page(s)	170-175
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Pulverized Strontium Slag, Chemical Activation, Activity, Mechanism

References

[1]	ZHANG Qingli, WANG Aiguang, WU Weidong. The current status and developing trend of industrial strontium carbonate production in China [J]. Inorganic Chemicals Industry, 2005 (08): 1-4.
[2]	ZHANG Li. Preparation and process study of strontium carbonate from Industrial waste strontium [D]. Chongqing: Chongqing University, 2012.
[3]	Jang J G, Park S M, Lee H K. Physical barrier effect of geopolymeric waste form on diffusivity of cesium and strontium [J]. Journal of hazardous materials, 2016, 318: 339-346.
[4]	XU Longjun, QU Ge, ZHAO Qing, et al. Pollution actuality of st-rontium tailings & waste residues and progress on resourceful utilization [J]. Resources Environment & Engineering, 2008 (02): 222-224+242.
[5]	Wang T, Tao Q, Xie Z. Performance and Environmental Evaluation of Stabilized Base Material with Strontium Slag in Low-Volume Road in China [J]. Advances in Civil Engineering, 2019, 2019.
[6]	ZHU Hongzhou, HE Lihong, ZOU Xiaoling. Applied research on strontium slag concrete pavement in low traffic volume roads [C]// International Conference on Transportation Engineering. 2013: 1208-1213.
[7]	Wang T, Tang B. Utilization of pulverized strontium slag as the admixture of Portland cement [J]. Journal of Thermal Analysis and Calorimetry, 2018, 132 (1): 285-291.
[8]	Zhu Hongzhou, Zhong Weiming, Tian Wenyu. Performance of mortar containing strontium slag [J]. Journal of Chongqing Jiaotong University (Natural Science), 2018, 37 (04): 34-38.
[9]	Zhu Hongzhou, Liao Nengwu, Zhang Minggong, Tian Wenyu. Evaluation of road performance of cement strontium slag concrete [J]. Bulletin of the Chinese Ceramic Society, 2018, 37 (02): 483-489.
[10]	Zhu Hongzhou, Ge Qi, Tian Wenyu. Design and perfoemance evaluation on mixture of lime strontium ore waste slag crushed stone base course [J]. Highway, 2017, 62 (10): 224-228.
[11]	Zhu Hongzhou, Zhong Weiming, Tian Wenyu, Xiang Hao, Yang Yang. Effect of pulverized strontium slag on mechanical properties of cement mortar [J]. Bulletin of The Chinese Ceramic Society, 2017, 36 (08): 2855-2860.
[12]	Si Chenhao. Research on the leaching characteristics of strontium slag and treatment of acid mine wastewater [D]. Anhui: Anhui University of Technology, 2017.
[13]	TIAN Wenyu, TANG Boming, WANG Guoan. Specific strength indicators analysis of the activity of strontium slag based on the smount [J]. Concrete, 2008 (10): 58-61.
[14]	TIAN Wenyu, TANG Boming, YU Zhilong. Influence of combus-tion temperature on strength activity of pulverized strontium slag [J]. Journal of Building Materials, 2009, 12 (02): 136-140.
[15]	TIAN Wenyu, TANG Boming, WANG Guoan. Influence of curin-g conditions on the activity of grinding strontium slag with spec-ific strength index [J]. Journal of China & Foreign Highway, 2008, 28 (06): 208-212.

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APA Style

Hongzhou Zhu, Li Ou, Daqian Wang, Lanxin Hu, Erhu Yan. (2019). Analysis of Active Mechanism of Chemical Activated Strontium Slag. Advances in Materials, 8(4), 170-175. https://doi.org/10.11648/j.am.20190804.16

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ACS Style

Hongzhou Zhu; Li Ou; Daqian Wang; Lanxin Hu; Erhu Yan. Analysis of Active Mechanism of Chemical Activated Strontium Slag. Adv. Mater. 2019, 8(4), 170-175. doi: 10.11648/j.am.20190804.16

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AMA Style

Hongzhou Zhu, Li Ou, Daqian Wang, Lanxin Hu, Erhu Yan. Analysis of Active Mechanism of Chemical Activated Strontium Slag. Adv Mater. 2019;8(4):170-175. doi: 10.11648/j.am.20190804.16

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@article{10.11648/j.am.20190804.16,
  author = {Hongzhou Zhu and Li Ou and Daqian Wang and Lanxin Hu and Erhu Yan},
  title = {Analysis of Active Mechanism of Chemical Activated Strontium Slag},
  journal = {Advances in Materials},
  volume = {8},
  number = {4},
  pages = {170-175},
  doi = {10.11648/j.am.20190804.16},
  url = {https://doi.org/10.11648/j.am.20190804.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.am.20190804.16},
  abstract = {In order to improve the activity of strontium slag, the mixed cementitious material of strontium slag cement was prepared by adding 30% (mass fraction) of pulverized strontium slag into cement. Chemical activators such as Na2SiO4, NaOH, CaCl2, NaCl, Ca(OH)2, Na2SO4 were added to the cementitious material. The flexural and compressive strength values of 3d, 7d, 28d were obtained by mortar strength test, and were used as the base with standard samples. The mechanism of activator improving the activity of strontium slag is analyzed. CaCl2 and NaCl are cement early strength agents. So the substitution of strontium slag with silica powder is compared. The strength of strontium slag is judged by principle analysis. The results show that NaOH and Ca(OH)2 are beneficial to the activation of SiO2 and Al2O3, but the amount of ettringite is large and the strength is reduced, so there is a certain active excitation for strontium slag, but the effect is not very good; the addition of Na2SiO4 causes damage to volume stability and it is the worst of all activators. the compressive strength increases rapidly in 3d and 7d after adding NaCl, so it is mainly to stimulate the early strength of cement; The 28d compressive strength of strontium slag cement containing CaCl2 is higher than that of strontium slag cement containing other chemical activators, which can reach 91% of the compressive strength of cement mortar. It is preliminarily judged that CaCl2 has an exciting effect on strontium slag and the exciting effect is obvious.},
 year = {2019}
}

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TY  - JOUR
T1  - Analysis of Active Mechanism of Chemical Activated Strontium Slag
AU  - Hongzhou Zhu
AU  - Li Ou
AU  - Daqian Wang
AU  - Lanxin Hu
AU  - Erhu Yan
Y1  - 2019/11/21
PY  - 2019
N1  - https://doi.org/10.11648/j.am.20190804.16
DO  - 10.11648/j.am.20190804.16
T2  - Advances in Materials
JF  - Advances in Materials
JO  - Advances in Materials
SP  - 170
EP  - 175
PB  - Science Publishing Group
SN  - 2327-252X
UR  - https://doi.org/10.11648/j.am.20190804.16
AB  - In order to improve the activity of strontium slag, the mixed cementitious material of strontium slag cement was prepared by adding 30% (mass fraction) of pulverized strontium slag into cement. Chemical activators such as Na2SiO4, NaOH, CaCl2, NaCl, Ca(OH)2, Na2SO4 were added to the cementitious material. The flexural and compressive strength values of 3d, 7d, 28d were obtained by mortar strength test, and were used as the base with standard samples. The mechanism of activator improving the activity of strontium slag is analyzed. CaCl2 and NaCl are cement early strength agents. So the substitution of strontium slag with silica powder is compared. The strength of strontium slag is judged by principle analysis. The results show that NaOH and Ca(OH)2 are beneficial to the activation of SiO2 and Al2O3, but the amount of ettringite is large and the strength is reduced, so there is a certain active excitation for strontium slag, but the effect is not very good; the addition of Na2SiO4 causes damage to volume stability and it is the worst of all activators. the compressive strength increases rapidly in 3d and 7d after adding NaCl, so it is mainly to stimulate the early strength of cement; The 28d compressive strength of strontium slag cement containing CaCl2 is higher than that of strontium slag cement containing other chemical activators, which can reach 91% of the compressive strength of cement mortar. It is preliminarily judged that CaCl2 has an exciting effect on strontium slag and the exciting effect is obvious.
VL  - 8
IS  - 4
ER  -

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Author Information

Hongzhou Zhu

Opening Funding Supported by the Key Laboratory of Road Structure & Material Ministry of Transport, Beijing, People's Republic of China
Li Ou

Department of Civil Engineering, Chongqing Jiaotong University, Chongqing, People's Republic of China
Daqian Wang

Department of Civil Engineering, Chongqing Jiaotong University, Chongqing, People's Republic of China
Lanxin Hu

Department of Civil Engineering, Chongqing Jiaotong University, Chongqing, People's Republic of China
Erhu Yan

Opening Funding Supported by the Key Laboratory of Road Structure & Material Ministry of Transport, Beijing, People's Republic of China

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APA Style

Hongzhou Zhu, Li Ou, Daqian Wang, Lanxin Hu, Erhu Yan. (2019). Analysis of Active Mechanism of Chemical Activated Strontium Slag. Advances in Materials, 8(4), 170-175. https://doi.org/10.11648/j.am.20190804.16

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ACS Style

Hongzhou Zhu; Li Ou; Daqian Wang; Lanxin Hu; Erhu Yan. Analysis of Active Mechanism of Chemical Activated Strontium Slag. Adv. Mater. 2019, 8(4), 170-175. doi: 10.11648/j.am.20190804.16

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AMA Style

Hongzhou Zhu, Li Ou, Daqian Wang, Lanxin Hu, Erhu Yan. Analysis of Active Mechanism of Chemical Activated Strontium Slag. Adv Mater. 2019;8(4):170-175. doi: 10.11648/j.am.20190804.16

Copy | Download

@article{10.11648/j.am.20190804.16,
  author = {Hongzhou Zhu and Li Ou and Daqian Wang and Lanxin Hu and Erhu Yan},
  title = {Analysis of Active Mechanism of Chemical Activated Strontium Slag},
  journal = {Advances in Materials},
  volume = {8},
  number = {4},
  pages = {170-175},
  doi = {10.11648/j.am.20190804.16},
  url = {https://doi.org/10.11648/j.am.20190804.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.am.20190804.16},
  abstract = {In order to improve the activity of strontium slag, the mixed cementitious material of strontium slag cement was prepared by adding 30% (mass fraction) of pulverized strontium slag into cement. Chemical activators such as Na2SiO4, NaOH, CaCl2, NaCl, Ca(OH)2, Na2SO4 were added to the cementitious material. The flexural and compressive strength values of 3d, 7d, 28d were obtained by mortar strength test, and were used as the base with standard samples. The mechanism of activator improving the activity of strontium slag is analyzed. CaCl2 and NaCl are cement early strength agents. So the substitution of strontium slag with silica powder is compared. The strength of strontium slag is judged by principle analysis. The results show that NaOH and Ca(OH)2 are beneficial to the activation of SiO2 and Al2O3, but the amount of ettringite is large and the strength is reduced, so there is a certain active excitation for strontium slag, but the effect is not very good; the addition of Na2SiO4 causes damage to volume stability and it is the worst of all activators. the compressive strength increases rapidly in 3d and 7d after adding NaCl, so it is mainly to stimulate the early strength of cement; The 28d compressive strength of strontium slag cement containing CaCl2 is higher than that of strontium slag cement containing other chemical activators, which can reach 91% of the compressive strength of cement mortar. It is preliminarily judged that CaCl2 has an exciting effect on strontium slag and the exciting effect is obvious.},
 year = {2019}
}

Copy | Download

TY  - JOUR
T1  - Analysis of Active Mechanism of Chemical Activated Strontium Slag
AU  - Hongzhou Zhu
AU  - Li Ou
AU  - Daqian Wang
AU  - Lanxin Hu
AU  - Erhu Yan
Y1  - 2019/11/21
PY  - 2019
N1  - https://doi.org/10.11648/j.am.20190804.16
DO  - 10.11648/j.am.20190804.16
T2  - Advances in Materials
JF  - Advances in Materials
JO  - Advances in Materials
SP  - 170
EP  - 175
PB  - Science Publishing Group
SN  - 2327-252X
UR  - https://doi.org/10.11648/j.am.20190804.16
AB  - In order to improve the activity of strontium slag, the mixed cementitious material of strontium slag cement was prepared by adding 30% (mass fraction) of pulverized strontium slag into cement. Chemical activators such as Na2SiO4, NaOH, CaCl2, NaCl, Ca(OH)2, Na2SO4 were added to the cementitious material. The flexural and compressive strength values of 3d, 7d, 28d were obtained by mortar strength test, and were used as the base with standard samples. The mechanism of activator improving the activity of strontium slag is analyzed. CaCl2 and NaCl are cement early strength agents. So the substitution of strontium slag with silica powder is compared. The strength of strontium slag is judged by principle analysis. The results show that NaOH and Ca(OH)2 are beneficial to the activation of SiO2 and Al2O3, but the amount of ettringite is large and the strength is reduced, so there is a certain active excitation for strontium slag, but the effect is not very good; the addition of Na2SiO4 causes damage to volume stability and it is the worst of all activators. the compressive strength increases rapidly in 3d and 7d after adding NaCl, so it is mainly to stimulate the early strength of cement; The 28d compressive strength of strontium slag cement containing CaCl2 is higher than that of strontium slag cement containing other chemical activators, which can reach 91% of the compressive strength of cement mortar. It is preliminarily judged that CaCl2 has an exciting effect on strontium slag and the exciting effect is obvious.
VL  - 8
IS  - 4
ER  -

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