Skip to main content
SpringerLink
Log in

The competitive adsorption characteristics of welan gum and superplasticizer in cement mortar

  • Cementitious materials
  • Published:
Journal of Wuhan University of Technology-Mater. Sci. Ed. Aims and scope Submit manuscript

Abstract

Welan gum has been widely used in oil cement and grouting materials for its excellent rheological properties and anti-bleeding, and most of all, being friendly to the environment. However, when welan gum was added, the fluidity of mortar decreased sharply, so it should be used together with a superplasticizer to enable good workability. With its powerful charge density in the molecular structure, the competitive adsorption between welan gum and other admixtures happened remarkably during the addition process. Consequently, we experimentally studied on the bleeding rate and rheological properties of cement slurry, fluidity and mechanical properties of mortar with welan gum mixed with superplasticizer, aiming at understanding the competitive adsorption phenomenon by application of welan gum mixed with superplasticizer. By measuring the hydration heat and zeta potential, the mechanism of interaction of welan gum with superplasticizer was deduced and explained. The results showed that it could ensure a good dispersion effect when welan gum is mixed with the two kinds of superplasticizer. Welan gum had little impact on the naphthalene superplasticizer, but did have a substantial influence on polycarboxylate. In practice, adding welan gum after PCE acted with cement for 2 min could effectively avoid the competitive adsorption and then achieve better performance. On this viewpoint for mortar with PCE, new delay release welan gum needs further research and development.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Ding Q J, Zhu Y X, Wang Y, et al. Effects of Molecular Structure of Polycarboxylate-type Superplasticizer on the Hydration Properties of C3S[J]. J. Wuhan Univ. Technol. Mater. Sci. Ed., 2012, 27(4): 768–772

    Article  Google Scholar 

  2. Song Y M, Guo C C, Qian J S, et al. Adsorption Mechanism of Polycarboxylate-Based Superplasticizer in CFBC Ash-Portland Cement Paste[J]. J. Wuhan Univ. Technol. -Mater. Sci. Ed., 2014, 29(5): 945–949

    Article  Google Scholar 

  3. Kang K S, Veeder T V. Heteropolysaccharide S-130[P]. US Patent, US 4342866, 1982

    Google Scholar 

  4. Zhang Y, Zhang G P. Method for Preparing a Welan Gum[P]. Chinese Patent, CN200610012511.0, 2006

    Google Scholar 

  5. León-Martínez F M, Cano-Barrita P F de J, Lagunez-Rivera L, et al. Study of Nopal Mucilage and Marine Brown Algae Extract as Viscosity-enhancing Admixtures for Cement Based Materials[J]. Constr. Build. Mater., 2014, 53:190–202

    Article  Google Scholar 

  6. Plank J, Lummer N R, Dugonjic-Bilic F. Competitive Adsorption Between an AMPS-Based Fluid Loss Polymer and Welan Gum Biopolymer in Oil Well Cement[J]. J. Appl. Polym. Sci., 2010, 116: 2 913–2 919

    Google Scholar 

  7. Sonebi M, Lachemi M, Hossain K M A. Optimisation of Rheological Parameters and Mechanical Properties of Superplasticised Cement Grouts Containing Metakaolin and Viscosity Modifying Admixture[J]. Constr. Build. Mater., 2013, 38: 126–138

    Article  Google Scholar 

  8. Lachemia M, Hossaina K M A, Lambros V, et al. Self-consolidating Concrete Incorporating New Viscosity Modifying Admixtures[J]. Cem. Concr. Res., 2004, 34: 917–926

    Article  Google Scholar 

  9. Zhao Q L, Li B X. Ecological Dry-mixed Mortar[M]. Beijing: Chemical Industry Press, 2012.

    Google Scholar 

  10. Allen F L, Best G H, Lindroth T A. Welan Gum in Cement Compositions[P]. US Patent, US 4963668 A, 1989

    Google Scholar 

  11. Taylor H F W. Cement Chemistry[M]. London: Thomas Telford, 1997

    Google Scholar 

  12. Ma L, Zhao Q L, Yao C K, et al. Impact of Welan Gum on Tricalcium Aluminate-gypsum Hydration[J]. Mater. Charact., 2012, 62: 88–95

    Article  Google Scholar 

  13. Yuan X H, Chen W, Yang M. Effect of Superplasticizers on the Early Age Hydration of Sulfoaluminate Cement[J]. J. Wuhan Univ. Technol.-Mater. Sci. Ed., 2014, 29(4): 757–762

    Article  Google Scholar 

  14. Yang S L, Wu Y H, Li G X. Review on the Effects of Superplasticizer on the Crystallization of the Ettringite[J]. Sichuan Build. Sci., 2012, 38(3): 237–241

    Google Scholar 

  15. Elsen J, Lens N, Aarre T, et al. Determination of the W/C Ratio of Hardened Cement Paste and Concrete Samples on Thin Sections Using Automated Image Analysis Techniques[J]. Cem. Concr. Res., 1995, 25: 827–834

    Article  Google Scholar 

  16. He T, Zhao Q L, Xu Q W, et al. Effect of Different Chemical Admixtures on Rheological Properties of Cement Based Grouting[J]. Chin. Ceram. Soc. Bull., 2010, 29(3): 728–733

    Google Scholar 

  17. Pöllmann H. Calcium Aluminate Cement -Raw Materials, Differences, Hydration, and Properties[A]. In: Broekmans MATM, Pöllmann H editors. Applied Mineralogy of Cement and Concrete. Reviews in Mineralogy and Geochemistry[C]. Chantilly Virginia/USA, 2012: 1–82

  18. Prince W, Espagne M, Aitcin P C. Ettringite Formation: a Crucial Step in Cement Superplasticizer Compatibility[J]. Cem. Concr. Res., 2003, 33: 635–641

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Wuhan, 430070, China

    Qinglin Zhao  (赵青林), Yulin Zhang, Ciqi Liu & Luping Zeng

  2. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China

    Qinglin Zhao  (赵青林), Yulin Zhang, Ciqi Liu, Luping Zeng & Shihua Chen

Authors
  1. Qinglin Zhao  (赵青林)
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Yulin Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Ciqi Liu
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Luping Zeng
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Shihua Chen
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Qinglin Zhao  (赵青林).

Additional information

Funded by the National Natural Science Foundation of China (No. 51202173) and National College Students Innovation and Entrepreneurship Training Program(2015)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zhao, Q., Zhang, Y., Liu, C. et al. The competitive adsorption characteristics of welan gum and superplasticizer in cement mortar. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 31, 131–138 (2016). https://doi.org/10.1007/s11595-016-1342-7

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11595-016-1342-7

Key words

Search

Navigation