Stability of Self-Consolidating Concrete Containing Different Viscosity Modifiers

Document Type: Research Papers

Authors

1 Civil Engineering, Lebanese University, Faculty of Engineering, Lebanon

2 Notre Dame University

Abstract

The main objective of this paper is to assess the effect of different viscosity-enhancing admixture (VEA) types and concentrations on deformability and stability of self-consolidating concrete (SCC). Two polysaccharide-based VEAs, one cellulose-based VEA, and a modified-startch VEA are used in this investigation. Regardless of polymer type, results showed that the incorporation of VEA leads to reduced passing ability represented by higher difference between the slump flow and J-Ring tests. The rheological properties followed an enhancing trend with VEA additions, given the higher degree of association and entanglement of polymer chains that increase resistance to flow. For given VEA dosage of 0.035%, mixtures made with cellulose VEA showed the highest stability levels including deformability and resistance to bleeding and surface settlement. Series of predictive charts are established to predict the changes in SCC stability as a function of rheological properties.

Keywords


 

Askarinejad, A. (2017). “Using different methods of nanofabrication as a new way to activate supplementary cementitious materials; A review”, Civil Engineering Infrastructure Journal, 50(1), 1-19.

Assaad, J. and Issa, C. (2014). “Effect of clinker grinding aids on flow of cement-based materials”, Cement and Concrete Research, 63, 1-11.

Assaad, J., Daou, Y. and Harb, J. (2014). “Influence of thixotropy on performance of grouts placed using vacuum injection techniques”, ACI Materials Journal, 112(2), 189-198.

Assaad, J.J. (2017). “Influence of recycled aggregates on dynamic/static stability of self-consolidating concrete”, Journal of Sustainable Cement-Based Materials, 6(6), 345-365.

Assaad, J.J. and Issa, C. (2017). “Mixture optimization of polymer-modified lightweight SCC”, Magazine of Concrete Research, 14(69), 745-756.

Assaad, J.J. and Daou, Y. (2017). “Behavior of structural polymer-modified concrete containing recycled aggregates”, Journal of Adhesion Science and Technology, 31(8), 874-896.

ASTM C232 (2014). “Standard test method for bleeding of concrete”. West Conshohocken, PA, USA.

ASTM C39 (2018). Standard test method for compressive strength of cylindrical concrete specimens, West Conshohocken, PA, USA.

Diamantonis, N., Marinos I., Katsiotis, M.S., Sakellariou, A., Papathanasiou, A., Kaloidas, V. and Katsioti, M. (2010). “Investigations about the influence of fine additives on the viscosity of cement paste for self-compacting concrete”, Construction and Building Materials, 24, 1518-1522.

ERMCO. (2005). “The European guidelines for self-compacting concrete: Specification, production and use”, The SCC European Project Group, 32 p.

EFNARC. (2006). “Guidelines for viscosity modifying admixtures for concrete”, www.efnarc.org.

Farsani, A.M. and Keshtegar, B. (2015). “Reliability analysis of corroded reinforced concrete beams using enhanced HL-RF method”, Civil Engineering Infrastructure Journal, 48(2), 297-304.

Gökçe, H.S. and Cakir, O.A. (2018). “A new method for determination of dynamic stability of self-consolidating concrete: 3-Compartment sieve test”, Construction and Building Materials, 168, 305-312.

Issa, C. and Assaad, J.J. (2015). “Bond of tension bars in underwater concrete, Effect of bar diameter and cover”, Materials and Structures, 48(11), 3457-3471.

Issa, C. and Assaad, J. (2017). “Stability and bond properties of polymer-modified self-consolidating concrete for repair applications”, Materials and Structures, 50(1), 28.

Jawahar, J.G., Sashidhar, C., Ramana, I.V.R. and Annie, P. (2013). “Design of cost-effective M 25 grade of self compacting concrete”, Materials and Design, 49, 687-692.

Khayat, K.H., and Assaad, J. (2008a). “Measurement systems for determining formwork pressure of highly flowable concrete”, Materials and Structures, 41(1), 37-46.

Khayat, K.H., and Assaad, J. (2008b). “Use of thixotropy-enhancing agent to reduce formwork pressure exerted by self-consolidating concrete”, ACI Materials Journal, 105(1), 88-96.

Khayat, K., Trimbak, P., Assaad, J., and Jolicoeur, C. (2003). “Analysis of variations in electrical conductivity to assess stability of cement-based materials”, ACI materials Journal, 100(4), 302-310.

Lachemi, M., Hossaina, K.M.A., Lambrosa, V., Nkinamubanzib, P.C. and Bouzoubaa, N. (2004). “Self-consolidating concrete incorporating new viscosity modifying admixtures”, Cement and Concrete Research, 34, 917-926.

Li, C., Miao, L., You, Q., Hu, S. and Fang, H. (2018). “Effects of viscosity modifying admixture (VMA) on workability and compressive strength of structural EPS concrete”, Construction and Building Materials, 175, 342-350.

Matar, P. and Assaad, J.J. (2017). “Effect of vertical reinforcing bars on formwork pressure of SCC containing recycled aggregates”, Journal of Building Engineering, 13, 159-168.

Mechaymech, A. (2008). “Development and optimization of cost-effective self-consolidating concrete with limestone filler”, Ph.D. Thesis, University of Sherbrooke, Canada, 250 p.

Rahmatabadi, M.A.D., Kazemi, H.H. and Shahabian F. (2014). “Effects of different water and superplasticizer amount, pre-setting and curing regimes on the behavior of reactive powder concrete”, Civil Engineering Infrastructure Journal, 47(2), 291-304.

RILEM Technical Committee (2006). “Final report of RILEM TC 188-CSC, Casting of self-compacting concrete”, Materials and Structures, 39, 937-954.

Shadkam, H.R., Dadsetan, S., Tadayon, M., Sanchez, L.F.M. and Zakeri, J.A. (2017). “An investigation of the effects of limestone powder and viscosity modifying agent in durability related parameters of self-consolidating concrete (SCC)”, Construction and Building Materials, 156, 152-160.

Simonides, H. and Terpstre, J. (2007). “Use of innovative startch ethers for paving blocks and other concrete products”, Concrete Plant and Precast Technology, 73(9), 38-45.

Sonebi, M. (2006). “Rheological properties of grouts with viscosity modifying agents as diutan gum and welan gum incorporating pulverised fly ash”, Cement and Concrete Research, 36, 1609-1618.

Soshiroda, T. (2004). “Segregation characteristics of concrete containing a high-range water-reducing admixture”, Proceedings ACI SP 68, 121-137.

Taboada, I.G., Fonteboa, B.G., Abella, F.M. and Paz, S.S. (2017). “Analysis of rheological behaviour of self-compacting concrete made with recycled aggregates”, Construction and Building Materials, 157, 18-25.

Üzer, E. and Plank J. (2016). “Impact of welan gum stabilizer on the dispersing performance of polycarboxylate superplasticizers”, Cement and Concrete Research, 82, 100-106.

Valcuende, M., Marco, E., Parra, C. and Serna, P. (2012). “Influence of limestone filler and viscosity-modifying admixture on the shrinkage of self-compacting concrete”, Cement and Concrete Research, 42(4), 583-592.

Zhang, Y. and Kong, X. (2015). “Correlations of the dispersing capability of NSF and PCE types of superplasticizer and their impacts on cement hydration with the adsorption in fresh cement pastes”, Cement and Concrete Research, 69, 1-9.