Development of two new anti-washout grouting materials using multi-way ANOVA in conjunction with grey relational analysis

Wei Cui, Junyan Huang, Huifang Song, Ming Xiao

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Two new types of anti-washout cementitious grouts, named “AWG-1” and “AWG-2” (anti-washout grout) respectively, have been developed for different geological conditions. Separate addition tests were performed to study the effects of certain accelerating agents and flocculating agents on the cement based grout comparatively. Based on the results of separate addition tests, two new formulations were proposed for further investigations. Both formulations involved three admixtures respectively. Grey relational analysis, coupled with Taguchi design of the combined addition experiment, was performed to determine the optimal admixture dosages for simultaneously achieving the desired yield stress and plastic viscosity of the cementitious grout. Multi-way ANOVA was employed to identify the insignificant factors (p > 0.05) which could be used to adjust the setting time and the compressive strength while not compromising the optimum rheological properties. The optimization algorithm was thus developed to achieve a faster set time, higher durability but lower workability for AWG-1, as well as sufficient washout resistance for both formulations according to their geotechnical applications. In addition, AWG-1 requires a high-pressure grout pumping system. Finally, the washout resistance of the newly developed grouts was validated by anti-washout simulation experiments.

Original languageEnglish (US)
Pages (from-to)184-198
Number of pages15
JournalConstruction and Building Materials
Volume156
DOIs
StatePublished - Dec 15 2017

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Grouting
Analysis of variance (ANOVA)
Compressive strength
Yield stress
Cements
Durability
Experiments
Viscosity
Plastics

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Cite this

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abstract = "Two new types of anti-washout cementitious grouts, named “AWG-1” and “AWG-2” (anti-washout grout) respectively, have been developed for different geological conditions. Separate addition tests were performed to study the effects of certain accelerating agents and flocculating agents on the cement based grout comparatively. Based on the results of separate addition tests, two new formulations were proposed for further investigations. Both formulations involved three admixtures respectively. Grey relational analysis, coupled with Taguchi design of the combined addition experiment, was performed to determine the optimal admixture dosages for simultaneously achieving the desired yield stress and plastic viscosity of the cementitious grout. Multi-way ANOVA was employed to identify the insignificant factors (p > 0.05) which could be used to adjust the setting time and the compressive strength while not compromising the optimum rheological properties. The optimization algorithm was thus developed to achieve a faster set time, higher durability but lower workability for AWG-1, as well as sufficient washout resistance for both formulations according to their geotechnical applications. In addition, AWG-1 requires a high-pressure grout pumping system. Finally, the washout resistance of the newly developed grouts was validated by anti-washout simulation experiments.",
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Development of two new anti-washout grouting materials using multi-way ANOVA in conjunction with grey relational analysis. / Cui, Wei; Huang, Junyan; Song, Huifang; Xiao, Ming.

In: Construction and Building Materials, Vol. 156, 15.12.2017, p. 184-198.

Research output: Contribution to journalArticle

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