Drying shrinkage of alkali-activated fly ash/slag blended system

Article

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
Article Title

Drying shrinkage of alkali-activated fly ash/slag blended system

ERA Journal ID201155
Article CategoryArticle
AuthorsWang, Guisheng (Author) and Ma, Yuwei (Author)
Journal TitleJournal of Sustainable Cement-Based Materials
Journal Citation7 (4), pp. 203-213
Number of Pages11
Year2018
PublisherTaylor & Francis
Place of PublicationUnited kingdom
ISSN2165-0373
2165-0381
Digital Object Identifier (DOI)https://doi.org/10.1080/21650373.2018.1471424
Abstract

The drying shrinkage of alkali-activated fly ash/slag (AAFS) is an important engineering property for the control of cracking when AAFS is utilized as a building material. In this study, results of drying shrinkage of AAFS pastes with different fly ash content and activator concentrations were presented. The weight loss of samples during the drying process was monitored. The pore structure and free water content of AAFS pastes were measured. The results showed that AAFS pastes with 30 and 50 w. t.% fly ash content exhibited a lower drying shrinkage than alkali-activated slag, while the drying shrinkage of AAFS pastes with 70 w. t.% fly ash content was the largest among all the mixtures. Besides, AAFS pastes with higher activator concentration exhibited a higher drying shrinkage. But there were no clear correlations between weight loss, pore structure and the drying shrinkage. It was assumed that other factors affect the drying shrinkage of AAFS.

Keywordsalkali-activated fly ash/slag; drying shrinkage; pore structure; free water; weight loss
ANZSRC Field of Research 2020400505. Construction materials
Public Notes

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

Byline AffiliationsGuangzhou University, China
Centre for Future Materials
Institution of OriginUniversity of Southern Queensland
Permalink -

https://research.usq.edu.au/item/q5933/drying-shrinkage-of-alkali-activated-fly-ash-slag-blended-system

Log in to edit
  • 176
    total views
  • 9
    total downloads
  • 0
    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
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
A comparative study on the pore structure of alkali-activated fly ash evaluated by mercury intrusion porosimetry, N2 adsorption and image analysis
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
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