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Sulfur Oxidation Characteristics of Sulfur Oxidizing Bacteria under Different Substrates and its Effect on Properties of Mortar
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Hui RONG1, 2, 3, Chenglong YU1, Shuqing ZHANG1, Guowei MA3, Hailiang WANG4, Zhihua LIU1, Lei ZHANG1
Journal of the Chinese Ceramic Society | 2021, 49(8) : 1650 - 1661
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Journal of the Chinese Ceramic Society | 2021, 49(8): 1650-1661
• Research Article •
Sulfur Oxidation Characteristics of Sulfur Oxidizing Bacteria under Different Substrates and its Effect on Properties of Mortar
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Hui RONG1, 2, 3, Chenglong YU1, Shuqing ZHANG1, Guowei MA3, Hailiang WANG4, Zhihua LIU1, Lei ZHANG1
Affiliations
  • 1.School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, China
  • 2.Tianjin Key Laboratory of Building Green Functional Materials, Tianjin Chengjian University, Tianjin 300384, China
  • 3.School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China
  • 4.School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China

    • RONG Hui (1983-), male, Ph. D., Associate Professor. E-mail:

About Author:

RONG Hui (1983-), male, Ph. D., Associate Professor. E-mail:

Published: 2021-08-20 doi: 10.14062/j.issn.0454-5648.20200935
Outline
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Sulfur oxidation characteristics of sulfur oxidizing bacteria under different substrates and the mechanical properties and microstructure of mortar samples were investigated. The growth concentrations of sulfur oxidizing bacteria are different under different substrates, i.e., the corresponding growth concentration decreases from high to low in an order of Na2S2O3, Na2SO3 and Na2S. The natural oxidation and biological oxidation both occur in the transformation of SO42- by the sulfur oxidizing bacteria under different substrates. S2O32- can be transformed to SO32- through SseA enzyme and then to SO42- through Soe enzyme. The swelling gypsum content of mortar sample under Na2S2O3 substrate is lower than that under Na2SO3 substrate. This is because SO42- concentration of natural oxidation of Na2SO3 is greater than that of the biological oxidation, thus leading to a higher reaction rate and a stronger corrosion effect. The compressive strength and mass change rate of the mortar samples under Na2S2O3 substrate are 10.4% and 1.04%, respectively. The change rate of compressive strength and mass of the mortar samples under Na2SO3 substrate are -12.9% and 1.44%, respectively. Combined with the mineral composition analysis results, it is indicated that the gypsum content of the samples under Na2S2O3 substrate is lower than that of the samples under Na2SO3 substrate, while the mortar samples are eventually deteriorated, due to the expansive force of a large amount of gypsum after 75 d and 45 d.

sulfur oxidizing bacteria  /  mortar  /  sulfur oxidation characteristics  /  microstructure  /  mechanical properties
荣辉, 於成龙, 张树青, 马国伟, 王海良, 刘志华, 张磊. 不同底物下硫氧化菌的硫氧化特性及其对砂浆性能的影响. 硅酸盐学报, 2021 , 49 (8) : 1650 -1661 . DOI: 10.14062/j.issn.0454-5648.20200935
Hui RONG, Chenglong YU, Shuqing ZHANG, Guowei MA, Hailiang WANG, Zhihua LIU, Lei ZHANG. Sulfur Oxidation Characteristics of Sulfur Oxidizing Bacteria under Different Substrates and its Effect on Properties of Mortar[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (8) : 1650 -1661 . DOI: 10.14062/j.issn.0454-5648.20200935
Appendix
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Year 2021 volume 49 Issue 8
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Article Info
doi: 10.14062/j.issn.0454-5648.20200935
  • Receive Date：2020-12-22
  • Online Date：2026-10-30
  • Published：2021-08-20
Article Data
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History
  • Received：2020-12-22
  • Revised：2021-01-24
Funding
Affiliations
    1.School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, China
    2.Tianjin Key Laboratory of Building Green Functional Materials, Tianjin Chengjian University, Tianjin 300384, China
    3.School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China
    4.School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China

Corresponding:

MA Guowei (1968-), male, Ph. D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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