A comparative study on the pore structure of alkali-activated fly ash evaluated by mercury intrusion porosimetry, N2 adsorption and image analysis

Article


Ma, Y., Wang, G., Ye, G. and Hu, J.. 2018. "A comparative study on the pore structure of alkali-activated fly ash evaluated by mercury intrusion porosimetry, N2 adsorption and image analysis." Journal of Materials Science. 53 (8), pp. 5958-5972. https://doi.org/10.1007/s10853-017-1965-x
Article Title

A comparative study on the pore structure of alkali-activated fly ash evaluated by mercury intrusion porosimetry, N2 adsorption and image analysis

ERA Journal ID4930
Article CategoryArticle
AuthorsMa, Y. (Author), Wang, G. (Author), Ye, G. (Author) and Hu, J. (Author)
Journal TitleJournal of Materials Science
Journal Citation53 (8), pp. 5958-5972
Number of Pages15
Year2018
Place of PublicationNew York, United States
ISSN0022-2461
1573-4803
Digital Object Identifier (DOI)https://doi.org/10.1007/s10853-017-1965-x
Abstract

In this study, the pore structure of alkali-activated fly ash (AAFA) pastes characterized by different techniques, including mercury intrusion porosimetry (MIP), nitrogen adsorption and image analysis (based on backscattered electron images), was evaluated and compared critically. The degree of reaction of fly ash in AAFA pastes was derived from image analysis. It was found that due to a significant 'ink-bottle' effect, the pore diameter of capillary pores derived from MIP was two orders of magnitude smaller than the size determined by image analysis. MIP and nitrogen adsorption results showed different peaks corresponding to the gel pores of AAFA pastes. Based on the experimental results, image analysis is regarded as a reliable technique for the characterization of large pores (> 1 μm) in AAFA pastes. Nitrogen adsorption is more suitable to characterize small pores (< 0.1 μm) in AAFA than MIP, and MIP data should be carefully interpreted, preferably in combination with other characterization techniques.

Keywordsdistributions; technology; ratio
ANZSRC Field of Research 2020400505. Construction materials
Public Notes

Files associated with this item cannot be displayed due to copyright restrictions.

Byline AffiliationsCentre for Future Materials
Guangzhou University, China
Delft University of Technology, Netherlands
South China University of Technology, China
Institution of OriginUniversity of Southern Queensland
Funding source
Australian Research Council (ARC)
Grant ID
1006016
Permalink -

https://research.usq.edu.au/item/q5934/a-comparative-study-on-the-pore-structure-of-alkali-activated-fly-ash-evaluated-by-mercury-intrusion-porosimetry-n2-adsorption-and-image-analysis

  • 109
    total views
  • 9
    total downloads
  • 2
    views this month
  • 0
    downloads this month

Export as

Related outputs

Study of acidic degradation of alkali-activated materials using synthetic C-(N)-A-S-H and N-A-S-H gels
Wang, Yanru, Cao, Yubin, Zhang, Zuhua, Huang, Jizhong, Zhang, Peng, Ma, Yuwei and Wang, Hao. 2022. "Study of acidic degradation of alkali-activated materials using synthetic C-(N)-A-S-H and N-A-S-H gels." Composites Part B: Engineering. 230, pp. 1-14. https://doi.org/10.1016/j.compositesb.2021.109510
Relationship between microstructure of AgCl film and electrochemical behavior of Ag|AgCl electrode for chloride detection
Zhang, Zhangmin, Hu, Jie, Wang, Yangyang, Shi, Ruichao, Ma, Yuwei, Huang, Haoliang, Wang, Hao, Wei, Jiangxiong and Yu, Qijun. 2021. "Relationship between microstructure of AgCl film and electrochemical behavior of Ag|AgCl electrode for chloride detection." Corrosion Science. 184, pp. 1-12. https://doi.org/10.1016/j.corsci.2021.109393
Corrosion behavior of the reinforcement in chloride-contaminated alkali-activated fly ash pore solution
Zhang, Zhangmin, Chen, Rui, Hu, Jie, Wang, Yangyang, Huang, Haoliang, Ma, Yuwei, Zhang, Zuhua, Wang, Hao, Yin, Suhong, Wei, Jiangxiong and Yu, Qijun. 2021. "Corrosion behavior of the reinforcement in chloride-contaminated alkali-activated fly ash pore solution." Composites Part B: Engineering. 224, pp. 1-14. https://doi.org/10.1016/j.compositesb.2021.109215
Surface characteristics and electrochemical behaviors of passive reinforcing steel in alkali-activated slag
Wang, Yangyang, Chen, Rui, Hu, Jie, Zhang, Zhangmin, Huang, Haoliang, Ma, Yuwei, Wei, Jiangxiong, Zhang, Zuhua, Yin, Suhong, Wang, Hao and Yu, Qijun. 2021. "Surface characteristics and electrochemical behaviors of passive reinforcing steel in alkali-activated slag." Corrosion Science. 190, pp. 1-12. https://doi.org/10.1016/j.corsci.2021.109657
Chloride diffusion in alkali-activated fly ash/slag concretes: Role of slag content, water/binder ratio, alkali content and sand-aggregate ratio
Zhang, Jingxiao, Ma, Yuwei, Zheng, Jiazheng, Hu, Jie, Fu, Jiyang, Zhang, Zuhua and Wang, Hao. 2020. "Chloride diffusion in alkali-activated fly ash/slag concretes: Role of slag content, water/binder ratio, alkali content and sand-aggregate ratio." Construction and Building Materials. 261, pp. 1-12. https://doi.org/10.1016/j.conbuildmat.2020.119940
Optimization on the piezoresistivity of alkali-activated fly ash/slag mortar by using conductive aggregates and carbon fibers
Ma, Yuwei, Liu, Weisen, Hu, Jie, Fu, Jiyang, Zhang, Zuhua and Wang, Hao. 2020. "Optimization on the piezoresistivity of alkali-activated fly ash/slag mortar by using conductive aggregates and carbon fibers." Cement and Concrete Composites. 114, pp. 1-14. https://doi.org/10.1016/j.cemconcomp.2020.103735
Fresh and hardened properties of alkali-activated fly ash/slag binders: effect of fly ash source, surface area, and additives
Wang, Yanru, Cao, Yubin, Ma, Yuwei, Xiao, Shanshan, Hu, Jie and Wang, Hao. 2021. "Fresh and hardened properties of alkali-activated fly ash/slag binders: effect of fly ash source, surface area, and additives." Journal of Sustainable Cement-Based Materials. https://doi.org/10.1080/21650373.2021.1932637
Turning sandstone clay into supplementary cementitious material: activation and pozzolanic reactivity evaluation
Cao, Yubin, Wang, Yanru, Zhang, Zuhua, Ma, Yuwei and Wang, Hao. 2021. "Turning sandstone clay into supplementary cementitious material: activation and pozzolanic reactivity evaluation." Composites Part B: Engineering. 223, pp. 1-12. https://doi.org/10.1016/j.compositesb.2021.109137
Recent progress of utilization of activated kaolinitic clay in cementitious construction materials
Cao, Yubin, Wang, Yanru, Zhang, Zuhua, Ma, Yuwei and Wang, Hao. 2021. "Recent progress of utilization of activated kaolinitic clay in cementitious construction materials." Composites Part B: Engineering. 211, pp. 1-19. https://doi.org/10.1016/j.compositesb.2021.108636
Degradation process of Ag/AgCl chloride-sensing electrode in cement extract with low chloride concentration
Zhang, Zhangmin, Hu, Jie, Xu, Zhipeng, Huang, Haoliang, Yin, Suhong, Ma, Yuwei, Wei, Jiangxiong and Yu, Qijun. 2022. "Degradation process of Ag/AgCl chloride-sensing electrode in cement extract with low chloride concentration." Corrosion Science. 198. https://doi.org/10.1016/j.corsci.2022.110107
Utilization of fibers in ultra-high performance concrete: A review
Gong, Jihao, Ma, Yuwei, Fu, Jiyang, Hu, Jie, Ouyang, Xiaowei, Zhang, Zuhua and Wang, Hao. 2022. "Utilization of fibers in ultra-high performance concrete: A review ." Composites Part B: Engineering. 241, pp. 1-22. https://doi.org/10.1016/j.compositesb.2022.109995
Relationship between rheological property and early age-microstructure building up of alkali-activated slag
Lu, Cuifang, Zhang, Zuhua, Hu, Jie, Yu, Qijun and Shi, Caijun. 2022. "Relationship between rheological property and early age-microstructure building up of alkali-activated slag ." Composites Part B: Engineering. 247, pp. 1-19. https://doi.org/10.1016/j.compositesb.2022.110271
Effects of anionic species of activators on the rheological properties and early gel characteristics of alkali-activated slag paste
Lu, Cuifang, Zhang, Zuhua, Hu, Jie, Yu, Qijun and Shi,Caijun. 2022. "Effects of anionic species of activators on the rheological properties and early gel characteristics of alkali-activated slag paste ." Cement and Concrete Research. 162, pp. 1-21. https://doi.org/10.1016/j.cemconres.2022.106968
Chloride binding behavior of synthesized reaction products in alkali-activated slag
Cai, Weixi, Xu, Zhipeng, Zhang, Zhangmin, Hu, Jie, Huang, Haoliang, Ma, Yuwei, Zhang, Zuhua, Wang, Hao, Yin, Suhong, Wei, Jiangxiong, Shi, Caijun and Yu, Qijun. 2022. "Chloride binding behavior of synthesized reaction products in alkali-activated slag ." Composites Part B: Engineering. 238, pp. 1-19. https://doi.org/10.1016/j.compositesb.2022.109919
Review on chloride transport in alkali-activated materials: Role of precursors, activators and admixtures
Zhang, Jingxiao, Ma, Yuwei, Hu, Jie, Wang, Hao and Zhang, Zuhua. 2022. "Review on chloride transport in alkali-activated materials: Role of precursors, activators and admixtures ." Construction and Building Materials. 328, pp. 1-24. https://doi.org/10.1016/j.conbuildmat.2022.127081
Effective Utilization of Waste Glass as Cementitious Powder and Construction Sand in Mortar
Wang, Yanru, Cao, Yubin, Zhang, Peng and Ma, Yuwei. 2020. "Effective Utilization of Waste Glass as Cementitious Powder and Construction Sand in Mortar." Materials. 13 (3), pp. 1-21. https://doi.org/10.3390/ma13030707
Effect of the Sodium Silicate Modulus and Slag Content on Fresh and Hardened Properties of Alkali-Activated Fly Ash/Slag
Ouyang, Xiaowei, Ma, Yuwei, Liu, Ziyang, Liang, Jianjun and Ye, Guang. 2019. "Effect of the Sodium Silicate Modulus and Slag Content on Fresh and Hardened Properties of Alkali-Activated Fly Ash/Slag." Minerals. 10 (1), pp. 1-17. https://doi.org/10.3390/min10010015
Drying shrinkage of alkali-activated fly ash/slag blended system
Wang, Guisheng and Ma, Yuwei. 2018. "Drying shrinkage of alkali-activated fly ash/slag blended system." Journal of Sustainable Cement-Based Materials. 7 (4), pp. 203-213. https://doi.org/10.1080/21650373.2018.1471424
Preparation and piezoresistive properties of carbon fiber-reinforced alkali-activated fly ash/slag mortar
Deng, L., Ma, Y., Hu, J., Yin, S., Ouyang, X., Fu, J., Liu, A. and Zhang, Z.. 2019. "Preparation and piezoresistive properties of carbon fiber-reinforced alkali-activated fly ash/slag mortar." Construction and Building Materials. 222, pp. 738-749. https://doi.org/10.1016/j.conbuildmat.2019.06.134
Accurate determination of the 'time-zero' of autogenous shrinkage in alkali-activated fly ash/slag system
Ma, Y., Yang, X., Hu, J., Zhang, Z. and Wang, H.. 2019. "Accurate determination of the 'time-zero' of autogenous shrinkage in alkali-activated fly ash/slag system." Composites Part B: Engineering. 177, pp. 1-8. https://doi.org/10.1016/j.compositesb.2019.107367
Characterization of the passive film formed on the reinforcement surface in alkali activated fly ash: surface analysis and electrochemical evaluation
Chen, Rui, Hu, Jie, Ma, Yuwei, Guo, Wenhao, Huang, Haoliang, Wei, Jiangxiong, Yin, Suhong and Yu, Qijun. 2020. "Characterization of the passive film formed on the reinforcement surface in alkali activated fly ash: surface analysis and electrochemical evaluation." Corrosion Science. 165, pp. 1-16. https://doi.org/10.1016/j.corsci.2019.108393
Water absorption and chloride diffusivity of concrete under the coupling effect of uniaxial compressive load and freeze-thaw cycles
Wang, Yanru, Cao, Yubin, Zhang, Peng, Ma, Yuwei, Zhao, Tiejun, Wang, Hao and Zhang, Zuhua. 2019. "Water absorption and chloride diffusivity of concrete under the coupling effect of uniaxial compressive load and freeze-thaw cycles." Construction and Building Materials. 209, pp. 566-576. https://doi.org/10.1016/j.conbuildmat.2019.03.091