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Effect of Tetrasodium Hydroxyethylidene Diphosphonate on Fresh and Hardening Properties of Alkali-Activated Slag Materials
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Wujian LONG1, 2, 3, Xuanhan ZHANG1, 2, 3, Zhuorui WU1, 2, 3, Chenyu WANG1, 2, 3, Biqin DONG1, 2, 3, Jingjie WEI1, 3, 4
Journal of the Chinese Ceramic Society | 2022, 50(8) : 2230 - 2238
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Journal of the Chinese Ceramic Society | 2022, 50(8): 2230-2238
• Research Articles •
Effect of Tetrasodium Hydroxyethylidene Diphosphonate on Fresh and Hardening Properties of Alkali-Activated Slag Materials
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Wujian LONG1, 2, 3, Xuanhan ZHANG1, 2, 3, Zhuorui WU1, 2, 3, Chenyu WANG1, 2, 3, Biqin DONG1, 2, 3, Jingjie WEI1, 3, 4
Affiliations
  • 1.Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen 518060, Guangdong, China
  • 2.Key Lab of Coastal Urban Resilient Infrastructure, MOE, Shenzhen University, Shenzhen 518060, Guangdong, China
  • 3.College of Civil and Transportation Engineering Shenzhen University, Shenzhen 518060, Guangdong, China
  • 4.Department of Civil, Architectural, and Environmental Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USA

    • LONG Wujian (1977-), male, Ph.D., Professor. E-mail:

About Author:

LONG Wujian (1977-), male, Ph.D., Professor. E-mail:

Published: 2022-08-20 doi: 10.14062/j.issn.0454-5648.20210765
Outline
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The effect of tetrasodium hydroxyethylidene diphosphonate (HEDP.Na4) on the fresh and hardening properties of alkali-activated slag materials (AASM) was investigated. Compared with the control group, the initial and final setting time of AASM made with HEDP.Na4 are delayed by 43.8% and 25.0%, respectively. The mini slump of AASM with HEDP.Na4 is increased by 15% and its yield stress is decreased from 57.2 Pa to 26.6 Pa, as compared with AASM without HEDP.Na4. In addition, the compressive and flexural strengths at 3 days of AASM with HEDP.Na4 are reduced, but those at 28 days are increased by 15% and 11.6%, compared with AASM without HEDP.Na4. HEDP.Na4 can reduce the early hydration heat, modify the pore structure, and reduce the total porosity of AASM matrix. Comprehensively, HEDP.Na4 effectively improves the early working performance of AASM and the later hardening performance slightly. This research can provide a guidance for the application of AASM in construction engineering.

alkali-activated  /  slag composites  /  rheology properties  /  mechanical properties  /  microstructure
龙武剑, 张轩翰, 吴卓锐, 王晨宇, 董必钦, 韦经杰. 羟基乙叉二膦酸四钠对碱激发矿渣复合材料的新拌及硬化性能影响. 硅酸盐学报, 2022 , 50 (8) : 2230 -2238 . DOI: 10.14062/j.issn.0454-5648.20210765
Wujian LONG, Xuanhan ZHANG, Zhuorui WU, Chenyu WANG, Biqin DONG, Jingjie WEI. Effect of Tetrasodium Hydroxyethylidene Diphosphonate on Fresh and Hardening Properties of Alkali-Activated Slag Materials[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (8) : 2230 -2238 . DOI: 10.14062/j.issn.0454-5648.20210765
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Article Info
doi: 10.14062/j.issn.0454-5648.20210765
  • Receive Date：2021-09-02
  • Online Date：2026-10-20
  • Published：2022-08-20
Article Data
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History
  • Received：2021-09-02
  • Revised：2021-09-17
Funding
Affiliations
    1.Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen 518060, Guangdong, China
    2.Key Lab of Coastal Urban Resilient Infrastructure, MOE, Shenzhen University, Shenzhen 518060, Guangdong, China
    3.College of Civil and Transportation Engineering Shenzhen University, Shenzhen 518060, Guangdong, China
    4.Department of Civil, Architectural, and Environmental Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USA
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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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