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Malic Acid Modified Foamed Magnesium Oxysulfate Cement
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Xueru LUO1, Wenqiang FAN2, Chunqing LI2, Yong WANG2, Hongjian YANG1, Xiaoli LIU1, Mengqi FAN1
Journal of the Chinese Ceramic Society | 2020, 48(2) : 222 - 230
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Journal of the Chinese Ceramic Society | 2020, 48(2): 222-230
Malic Acid Modified Foamed Magnesium Oxysulfate Cement
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Xueru LUO1, Wenqiang FAN2, Chunqing LI2, Yong WANG2, Hongjian YANG1, Xiaoli LIU1, Mengqi FAN1
Affiliations
  • 1.Hebei University of Technology, Tianjin 300130, China
  • 2.Tianjin Chengan Thermal Power, Tianjin 300204, China

    • LUO Xueru (1995-), female, Master candidate. E-mail:

About Author:

LUO Xueru (1995-), female, Master candidate. E-mail:

Published: 2020-02-20 doi: 10.14062/j.issn.0454-5648.20190431
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Malic acid was used as a modifier of foamed magnesium oxysulfate cement (FMOSC). Effect of malic acid on porosity, dry density, compressive strength, softening coefficient and drying shrinkage of FMOSC was investigated. The phase composition, cross-section morphology and elemental composition of FMOSC were studied by X-ray diffraction, infrared spectra and scanning electron microscopy. The results show that the addition of malic acid has slight influence on the dry density and porosity of the sample, but the pore size distribution becomes narrow and the drying shrinkage rate reduces. The compressive strength of FMOSC modified with malic acid is twice greater than that without malic acid. It is indicated that malic acid could inhibit the formation of Mg(OH)2 by chelation ability and promote the growth of 517 crystal phase in the form of screw dislocation.

malic acid  /  foamed magnesium oxysulfate cement  /  chelation ability  /  crystal phase  /  screw dislocation  /  air-void diameter distribution
罗学如, 范文强, 李春庆, 王永, 杨红健, 刘晓莉, 樊梦琪. 苹果酸改性发泡硫氧镁水泥. 硅酸盐学报, 2020 , 48 (2) : 222 -230 . DOI: 10.14062/j.issn.0454-5648.20190431
Xueru LUO, Wenqiang FAN, Chunqing LI, Yong WANG, Hongjian YANG, Xiaoli LIU, Mengqi FAN. Malic Acid Modified Foamed Magnesium Oxysulfate Cement[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (2) : 222 -230 . DOI: 10.14062/j.issn.0454-5648.20190431
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Year 2020 volume 48 Issue 2
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Article Info
doi: 10.14062/j.issn.0454-5648.20190431
  • Receive Date：2019-08-25
  • Online Date：2026-10-29
  • Published：2020-02-20
Article Data
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History
  • Received：2019-08-25
  • Revised：2019-11-25
Funding
Affiliations
    1.Hebei University of Technology, Tianjin 300130, China
    2.Tianjin Chengan Thermal Power, Tianjin 300204, China

Corresponding:

YANG Hongjian (1968-), male, Associate Professor. E-mail:
LIUxiaoli (1972-), female, Ph.D., Lecturer
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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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