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Characterization for Water Vapor Sorption and Organic Content of Silane-impregnated Cement-Based Materials
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Wei JING1, Rui YANG2, Kefei LI1
Journal of the Chinese Ceramic Society | 2020, 48(5) : 675 - 681
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Journal of the Chinese Ceramic Society | 2020, 48(5): 675-681
Characterization for Water Vapor Sorption and Organic Content of Silane-impregnated Cement-Based Materials
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Wei JING1, Rui YANG2, Kefei LI1
Affiliations
  • 1.Civil Engineering Department, Tsinghua University, Beijing 100084 , China
  • 2.Chemical Engineering Department, Tsinghua University, Beijing 100084, China

    • JING Wei (1996-), male, Master candidate. E-mail:

About Author:

JING Wei (1996-), male, Master candidate. E-mail:

Published: 2020-05-20 doi: 10.14062/j.issn.0454-5648.2020.05.20190486
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Silane impregnation is commonly used as a durability protection measure for concrete. Cement-based materials impregnated with triethoxyisobutylsilane were analyzed by pyrolysis-gas chromatography-mass spectrometry (PGC-MS) to identify the characteristic structure and amount of impregnation. The main component of the pyrolysis fragments is isobutyl. The water vapor sorption isotherm (WVSI) was determined to investigate the interaction between moisture and the impregnated materials. There is no notable difference at a humidity of <30%, the pore condensation (adsorption) and "ink-bottle" effect (desorption) substantially decrease, and the adsorption/desorption rate increases due to the impregnation at a humidity of>60%. The Xenon lamp ageing (10 weeks) after laboratory accelerated ageing process does not change the silane content and the WVSI characteristics.

cement-based materials  /  silane impregnation  /  pyrolysis-gas chromatography-mass spectrometry  /  water vaporsorption/desorption isotherm
景炜, 杨睿, 李克非. 硅烷浸渍水泥基材料水蒸气脱吸附性能与有机物含量的表征. 硅酸盐学报, 2020 , 48 (5) : 675 -681 . DOI: 10.14062/j.issn.0454-5648.2020.05.20190486
Wei JING, Rui YANG, Kefei LI. Characterization for Water Vapor Sorption and Organic Content of Silane-impregnated Cement-Based Materials[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (5) : 675 -681 . DOI: 10.14062/j.issn.0454-5648.2020.05.20190486
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Year 2020 volume 48 Issue 5
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Article Info
doi: 10.14062/j.issn.0454-5648.2020.05.20190486
  • Receive Date：2019-07-09
  • Online Date：2026-10-29
  • Published：2020-05-20
Article Data
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History
  • Received：2019-07-09
  • Revised：2019-09-29
Funding
Affiliations
    1.Civil Engineering Department, Tsinghua University, Beijing 100084 , China
    2.Chemical Engineering Department, Tsinghua University, Beijing 100084, China

Corresponding:

LI Kefei (1972-), male, Ph.D., Professor. Email:
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Citations
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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