Improvement on Freeze-Thaw Resistance of Cement-Based Materials by Functional Admixtures

  • Yagang Zha
  • Jianying Yu
  • Ruiyang Wang
  • Guang Zhang
  • Wei Duan
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)

Abstract

The effects of different functional admixtures (F1, F2 and F3) on mechanical property, total porosity and freeze-thaw (F-T) resistance ability of mortars were investigated. The F-T resistance ability of mortars was evaluated by mass loss, compressive strength loss and total porosity increase. The results indicated that the mortars with functional admixtures showed higher compressive strength and lower total porosity. During the F-T cycles, mortars with functional admixtures have a lower mass loss and their compressive strength decline and total porosity increase. Meanwhile, by scanning electron microscope (SEM) analysis it is found that there was a large amount of fibrous crystals formation in the microcracks which is due to the self-healing capability of the functional admixture resistant to damage. Compared with controlling samples without functional admixture, the mass loss, compressive strength decline and total porosity increase of mortars with 0.5 wt% F2 dropped 28.7, 34.2 and 40.7% respectively.

Keywords

Cement-based materials Functional admixtures Freeze-thaw resistance Self-healing 

Notes

Acknowledgements

This work is supported by the National Key R & D Program of China (No. 2017YFB0309905). The authors gratefully acknowledge financial support.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Yagang Zha
    • 1
  • Jianying Yu
    • 1
  • Ruiyang Wang
    • 1
  • Guang Zhang
    • 2
  • Wei Duan
    • 2
  1. 1.State Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhanChina
  2. 2.Inner Mongolia High-Grade Highway Construction and Development Co. LtdHohhotChina

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