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Suitability of Methylene Blue Method for Measuring Cation Exchange Capacity of Clayey Soils
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Wen WANG1, Weiyun LIANG1, Changfu WEI1, 2, Rongtao YAN1, Xiaoqiao FENG1
Journal of the Chinese Ceramic Society | 2021, 49(10) : 2106 - 2114
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Journal of the Chinese Ceramic Society | 2021, 49(10): 2106-2114
Suitability of Methylene Blue Method for Measuring Cation Exchange Capacity of Clayey Soils
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Wen WANG1, Weiyun LIANG1, Changfu WEI1, 2, Rongtao YAN1, Xiaoqiao FENG1
Affiliations
  • 1.Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin University of Technology, Guilin 541004, Guangxi, China
  • 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China

    • WANG Wen (1994-), male, Master candidate. E-mail:

About Author:

WANG Wen (1994-), male, Master candidate. E-mail:

Published: 2021-10-20 doi: 10.14062/j.issn.0454-5648.20210121
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Cation exchange capacity (CEC) is an essential physicochemical index of clayey soil, which can characterize the physicomechanical properties of clayey soil, and methylene blue method can quickly determine the CEC of clayey soil. Therefore, methylene blue method (MB method), ammonium chloride ammonia water exchange method (ammonia method), and barium chloride buffer method (barium method) were used to measure the CEC of several typical clayey soils, to explore the applicability of MB method. The results show that the ammonia method and barium method are consistent, but MB method is different from ammonia method and barium method; The test result is low when the CEC is low, and the test result is high when the CEC is high. The adsorption behavior of methylene blue to clayey soil was analyzed by X ray diffraction test, which was found that methylene blue molecules were adsorbed on the surface when the CEC was lower (less than 40mmol/100g); When the CEC was higher (greater than 40 mmol/100 g), a large number of methylene blue molecules were absorbed between layers. Combined with the results of X ray diffraction, the results of the MB method are modified by the change of basal spacing (d001). The results of the MB method are modified by empirical relation at low CEC and modified by d001 at high CEC, and good results are obtained.

cation exchange capacity  /  methylene blue method  /  clayey soil  /  X ray diffraction  /  basal spacing
王文, 梁维云, 韦昌富, 颜荣涛, 冯晓乔. 亚甲基蓝法测试黏性土阳离子交换量的适用性. 硅酸盐学报, 2021 , 49 (10) : 2106 -2114 . DOI: 10.14062/j.issn.0454-5648.20210121
Wen WANG, Weiyun LIANG, Changfu WEI, Rongtao YAN, Xiaoqiao FENG. Suitability of Methylene Blue Method for Measuring Cation Exchange Capacity of Clayey Soils[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (10) : 2106 -2114 . DOI: 10.14062/j.issn.0454-5648.20210121
Appendix
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Year 2021 volume 49 Issue 10
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5
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Article Info
doi: 10.14062/j.issn.0454-5648.20210121
  • Receive Date：2021-02-10
  • Online Date：2026-10-30
  • Published：2021-10-20
Article Data
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History
  • Received：2021-02-10
  • Revised：2021-03-04
Funding
Affiliations
    1.Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin University of Technology, Guilin 541004, Guangxi, China
    2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China

Corresponding:

WEI Changfu (1966-), male, 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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