Flowability, Viscosity and Internal Friction of Self-Compacting Mortar as Affected by Its Mix Proportions

Authors

  • Thanapol Yanweerasak Department of Civil Engineering, Faculty of Engineering, Kasetsart University, Sriracha Campus, Chonburi, Thailand; The Innovation in Infrastructure and Construction Management Research Group, Kasetsart University, Sriracha Campus, Chonburi, Thailand
  • Burachat Kittikornjarus Department of Civil Engineering, Faculty of Engineering, Kasetsart University, Sriracha Campus, Chonburi, Thailand; The Innovation in Infrastructure and Construction Management Research Group, Kasetsart University, Sriracha Campus, Chonburi, Thailand
  • Pennapa Pakwat Department of Civil Engineering, Faculty of Engineering, Kasetsart University, Sriracha Campus, Chonburi, Thailand
  • Thitipong Plongpan Department of Civil Engineering, Faculty of Engineering, Kasetsart University, Sriracha Campus, Chonburi, Thailand
  • Anuwat Attachaiyawuth Department of Civil Engineering, Faculty of Engineering, Kasetsart University, Sriracha Campus, Chonburi, Thailand; The Innovation in Infrastructure and Construction Management Research Group, Kasetsart University, Sriracha Campus, Chonburi, Thailand

Keywords:

Flowability, Viscosity, Internal Friction, Self-compacting Mortar, Self-compacting

Abstract

The present research studied flowability, viscosity and internal friction of mortars prepared using local materials in Thailand in order to evaluate fresh properties of the mortars that can be used for the production of self-compacting concrete. The results showed that flowability increased and viscosity decreased by increasing the dosage of a superplasticizer. The utulized dosage depended on the mix proportions, which consist of sand to mortar ratio (s/m) and water to cement ratio (W/C). The suitable dosage was noted to be in the range of 0.6-2.9%. Mortars with high W/C and low s/m required lower dosage of superplasticizer comparing to those with lower W/C or higher s/m. Over dosage of superplasticizer adversely affected flowability of mortar, especially in the case of mortar with low W/C (W/C 30%). Internal friction of mortars significantly decreased with increased water content in mixtures, especially in the case of mortars with higher s/m; this is because such mortars contained higher internal friction, so increasing water could effectively reduce the internal friction. The friction reduced from 0.54 to 0.32 by increasing W/C from 40% to 45%. On the other hand, mortar with low s/m (s/m 45%) exhibited lower internal friction, so increasing the water content did not significantly affect internal friction, which remained at approximately 0.2. Mortar mixtures that can be applied to produce self-compacting concrete should contain sand to mortar ratio in the range of 45-50% and water to cement ratio in the range of 30-45%.

References

Abdulmatin, A., Rattanachu, P., Khongpermgoson, P., Tangchirapat, W. and Jaturapitakkul, C., 2020, "A Study of Pozzolanic Reaction of Two Bottom Ashes Obtained fromLignite and Bituminous Coal Combustion," KMUTT Research and Development Journal, 43 (1), pp. 49-65. (In Thai)

Khongpermgoso, P. Abdulmatin, A., Tangchirapat, W. and Jaturapitakkul C., 2016, "Development of Compressive strength of Concrete from A Binder of Botton Ash and Calcium Carbide Residue," Journal of Thailand Concrete Association, 4 (1), pp. 11-19. (In Thai)

Meanyut, B., Tangchirapat, W. and Jaturapitakkul, C., 2019, "High-Strength Concrete Containing High Volume of Ground Bottom Ash," Journal of Thailand Concrete Association, 7 (2), pp. 14-24. (In Thai)

Kaewmanee, K., Tangtermsirikul, S. and Komsan, M., 2015, "Basic Properties and Durability of Concrete with Fly Ash and CACO3 Powder," Journal of Thailand Concrete Association, 3 (2), pp. 8-16.

Makaratat, N., Norrarat, P. Jaturapitakkul, C. and Songpiriyakij, S., 2019, "Influence of High Volume Ternary Blend from Fly Ash and Ground Granulated Blast Furnace Slag on Concrete Properties," Journal of Thailand Concrete Association, 7 (2), pp. 1-13. (In Thai)

Srisen, A., Tangchirapat, W. and Jaturapitakkul, C., 2014, "Properties of Concrete Using Fly Ash and Calcium Carbide Residue as a Cementitious Material," KMUTT Research and Development Journal, 37 (2), pp. 165-175. (In Thai)

Khongpermgoso, P., Abdulmatin, A., Tangchirapat, W. and Jaturapitakkul, C., 2016, "Development of Compressive strength of Concrete from A Binder of Botton Ash and Calcium Carbide Residue," Journal of Thailand Concrete Association, 4 (1), pp. 11-19. (In Thai)

Kawaguchi, N., Kohno, K. and Mita, M., 1996, "Influences of Superplasiticizer, Mixing Time, Mixing Temperature and Cement Content on High-Volume Fly Ash Concrete," Materials Science Research International, 2 (4), pp. 242-247.

Okamura, H. and Ouchi, M., 2003, "Self-Compacting Concrete," Journal of Advanced Concrete Technology, 1 (15), pp. 5-15.

Nagamoto, N. and Ozawa, K., 1997, "Mixture Proportions of Self-Compacting High-Performance Concrete, "Proceedings of the International Conference on High Performance Concrete: Design and Materials and Recent Advances in Concrete Technology,” 2-5 December, Kuala Lumpur, Malaysia, pp. 623-636

Japan Society of Civil Engineers, 1999, Recommendation for Self-Compacting Concrete.

Nepomuceno, M., Oliveira, L. and Lopez, S.M.R., 2012, " Methodology for Mix Design of the Mortar Phase of Self-compacting Concrete using Different Mineral Additions in Binary Blends of Powders," Construction and Building Materials, 26, pp. 317-326.

Habibi, A. and Ghomashi, J., 2018, " Development of an Optimum Mix Design Method for Self-compacting Concrete based on Experimental Results," Construction and Building Materials, 168, pp. 113-123.

Alexandra, C., Bogdan, H., Camelia, N. and Zoltan, K., 2018, " Mix Design of Self-Compacting Concrete with Limestone Filler Versus Fly Ash Addition," Procedia Manufacturing, 22, pp. 301-308.

Aissa, Y., Goual, I and Benabed, B., 2020, " Mix-design and Properties of Self-compacting Concrete Made with Calcareous Tuff," Journal of Building Engineering, 27, pp. 1-9.

Zhang, J., An, X. and Li, P., 2020, " Research on a Mix Design Method of Self-compacting Concrete based on a Paste Rheological Threshold Theory and a Powder Equivalence Model," Construction and Building Materials, 233 , pp. 1-12.

Li, P., Zhang, T., An, X. and Zhang, J., 2020, " An Enhanced Mix Design Method of Self-compacting Concrete with Fly Ash Content based on Paste Rheological Threshold Theory and Material Packing Characteristics," Construction and Building Materials, 234 , pp. 1-11.

Li, P., Ran, J., Nie, D. and Zhang, W., 2021, "Improvement of Mix Design Method based on Paste Rheological Threshold Theory for Self-compacting Concrete Using Different Mineral Additions in Ternary Blends of Powders," Construction and Building Materials, 276, pp. 1-13.

Attachaiyawuth, A., Rath, S., Tanaka, K. and Ouchi, M., 2016, "Improvement of Self-Compactability of Air-Enhanced Self-Compacting Concrete with Fine Entrained Air," Journal of Advanced Concrete Technology, 14 (3), pp. 55-59.

Puthipad, N., Ouchi, M., Rath, S. and Attachaiyawuth, A., 2016, "Enhancement in Self-compactability and Stability in Volume of Entrained Air in Self-compacting Concrete with High Volume Fly Ash," Construction and Building Material, 128, pp. 349-360.

Rath, S. Puthipad, N. Attachaiyawuth, A. and Ouchi, M., 2017, "Critical Size of Entrained Air to Stability of Air Volume in Mortar of Self-compacting Concrete at Fresh Stage," Journal of Advanced Concrete Technology, 15 (1), pp. 29-37.

Ouchi, M., Kameshima, K. and Attachaiyawuth, A., 2017, "Improvement in Self-compacting Properties of Fresh Concrete by Eliminating Large Air Bubbles Using an Antifoaming Agent," Journal of Advanced Concrete Technology, 15 (1), pp. 10-18.

Puthipad, N., Ouchi, M., Rath, S. and Attachaiyawuth, A., 2017, "Enhanced Entrainment of Fine Air Bubbles in Self-compacting Concrete with High Volume of Fly Ash Using Defoaming Agent for Improved Entrained Air Stability and Higher Aggregate Content," Construction and Building Materials, 144, pp. 1-12.

Rath, S., Ouchi, M., Puthipad, N. and Attachaiyawuth, A., 2017, "Improving the Stability of Entrained Air in Self-compacting Concrete by Optimizing the Mix Viscosity and Air Entraining Agent Dosage," Construction and Building Material, 148, pp. 531-537.

Puthipad, N., Ouchi, M. and Attachaiyawuth, A., 2018, "Effects of Fly Ash, Mixing Procedure and Type of Air-entraining Agent on Coalescence of Entrained Air Bubbles in Mortar of Self-compacting Concrete at Fresh State," Construction and Building Materials, 180, pp. 437-444.

Ouchi, M., Edamatsu, Y., Ozawa, K. and Okamura, H., 1999, "A Simple Evaluation Method for Intraction between Coarse Aggregate and Mortar's Particles in Self-Compacting Concrete," Transaction of The Japan Concrete Institute, 21, pp. 1-6.

Attachaiyawuth, A., 2015, Simple Evaluation of Flowability of Self-Compacting Concrete by Mortar Test, TCA E-Magazine. (In Thai)

Thailand Industrial Standard, 2012, Specifications for Portland Cement Type 1. (In Thai)

Kubens, S., 2010, Interaction of Cement and Admixtures and Its Influence on Rheological Properties, Cuvillier Verlag, Göttingen, Germany, p. 192.

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Published

2021-09-30

How to Cite

Yanweerasak, T., Kittikornjarus, B., Pakwat, . P., Plongpan, T., & Attachaiyawuth, A. (2021). Flowability, Viscosity and Internal Friction of Self-Compacting Mortar as Affected by Its Mix Proportions. Science and Engineering Connect, 44(3), 409–426. retrieved from https://ph04.tci-thaijo.org/index.php/SEC/article/view/10436

Issue

Vol. 44 No. 3 (2021): July - September

Section

Research Article

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