Abstract
The formation and characterization of various types of organically modified C–S–H-based nanocomposites have recently been investigated. The engineering properties of this class of cementitious materials, however, have rarely been studied. The current work examines a new approach to the assessment of the mechanical performance of C–S–H/polyaniline nanocomposites prepared in situ using C–S–H systems having C/S ratios of 0.8 and 1.2. Test methods including X-ray diffraction and dynamic mechanical analysis were employed in order to evaluate the physical and mechanical stability of these polymer-modified C–S–H nanocomposites. The variations in the 002 basal spacing, storage modulus (E′) and internal friction (tan δ) of the C–S–H/polyaniline nanocomposites were examined upon the incremental removal of the interlayer water. It was suggested that the polyaniline molecules may reinforce the C–S–H lamellar structure as indicated by the magnitude of the decrease in the 002 basal-spacing during the dehydration. Moreover, the initial DMA response of the C–S–H/polyaniline nanocomposites appears to be improved.
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References
Raki L, Beaudoin JJ, Alizadeh R, Makar JM, Sato T (2010) Cement and concrete nanoscience and nanotechnology. Materials 3:918–942
Balaguru P, Chong K (2006) Nanotechnology and concrete: research opportunities. ACI SP-254: nanotechnology of concrete: recent developments and future perspectives. American Concrete Institute, Detroit, pp 15-28
Minet J, Abramson S, Bresson B, Sanchez C, Montouillout V, Lequeux N (2004) New layered calcium organosilicate hybrids with covalently linked organic functionalities. Chem Mater 16:3955–3962
Pellenq RJ-M, Lequeux N, Van Damme H (2008) Engineering the bonding scheme in C-S–H: the iono-covalent framework. Cem Concr Res 38:159–174
Beaudoin JJ, Raki L, Alizadeh R (2009) A 29Si MAS NMR study of the calcium silicate hydrate nanocomposites. Cem Concr Compos 31:585–590
Beaudoin JJ, Drame H, Raki L, Alizadeh R (2008) Formation and characterization of calcium silicate hydrate-hexadecyltrimethylammonium nanostructure. J Mater Res 23:2804–2815
Beaudoin JJ, Drame H, Raki L, Alizadeh R (2009) Formation and properties of C–S–H—PEG nano-structures. Mater Struct 42:1003–1014
Matsuyama H, Young JF (1999) Intercalation of polymers in calcium silicate hydrate: a new synthetic approach to biocomposites? Chem Mater 11:16–19
Matsuyama H, Young JF (1999) Synthesis of calcium silicate hydrate/polymer complexes: part I. J Mater Res 14:3379–3388
Matsuyama H, Young JF (1999) Synthesis of calcium silicate hydrate/polymer complexes: part II. J Mater Res 14:3389–3396
Mojumdar SC, Raki L (2005) Preparation and properties of calcium silicate hydrate-poly(vinyl alcohol) nanocomposites materials. J Therm Anal Calorim 82:89–95
Mojumdar SC, Raki L (2006) Preparation, thermal. spectral and microscopic studies of calcium silicate hydrate-poly(acrylic acid) nanocomposites materials. J Therm Anal Calorim 85:99–105
Minet J, Abramson S, Bresson B, Franceschini A, Van Damme H, Lequeux N (2006) Organic calcium silicate hydrate hybrids: a new approach to cement based nanocomposites. J Mater Chem 16:1379–1383
Franceschini A, Abramson S, Mancini V, Bresson B, Chassenieux C, Lequeux N (2007) New covalent bonded polymer-calcium silicate hydrate composites. J Mater Chem 17:913–922
Beaudoin JJ, Patarachao B, Raki L, Alizadeh R (2009) The Interaction of methylene blue dye with calcium–silicate–hydrate. J Am Ceram Soc 92:204–208
Pelisser F, Gleiz PJP, Mikowski A (2010) Effect of poly(diallyldimethylammonium chloride) on nanostructure and mechanical properties of calcium silicate hydrate”. Mater Sci Eng A 527(26):1045–1049
Alizadeh R (2009) Nanostructure and engineering properties of basic and modified calcium–silicate–hydrate systems. PhD thesis, University of Ottawa
Khoshnazar R, Beaudoin JJ, Raki L, Alizadeh R (2012) Volume stability of C–S–H/polyaniline in aqueous solutions. ACI Mater J, under review
Taylor HFW (1997) Cement chemistry, 2nd edn. Thomas Telford Publication, London
Taylor HFW (1986) Proposed structure for calcium silicate hydrate gel. J Am Ceram Soc 69:464–467
Alizadeh R, Beaudoin JJ (2011) Mechanical properties of calcium silicate hydrates. Mater Struct 44:13–28
Beaudoin JJ (1983) Comparison of mechanical properties of compacted calcium hydroxide and Portland cement paste systems. Cem Concr Res 13:319–324
Soroka I, Sereda PJ (1968) The structure of cement-stone and the use of compacts as structural models. In: Proceedings of the 5th international symposium on the chemistry of cement, Tokyo, pp 67–73
Alizadeh R, Beaudoin JJ, Raki L, Terskikh V (2011) C–S–H/polyaniline nanocomposites prepared by in situ polymerization. J Mater Sci 46:460–467
Rodrigues PC, Akcelrud L (2003) Networks and blends of polyaniline and polyurethane: correlations between composition and thermal, dynamic mechanical and electrical properties. Polymer 44:6891–6899
Lesueur D, Colin X, Camino G, Alberola ND (1997) Dynamic mechanical behaviour and thermal degradation of undoped polyaniline. Polym Bull 39:755–760
Chen S, Lee H (1995) Structure and properties of poly(acry1ic acid)-doped polyaniline. Macromolecules 28:2858–2866
Radjy F, Richards CW (1973) Effect of curing and heat treatment history on the dynamic mechanical response and the pore structure of hardened cement paste. Cem Concr Res 3:7–21
Sellevold EJ, Radjy F (1976) Drying and resaturation effects on internal friction in hardened cement pastes. J Am Ceram Soc 59:256–258
Radjy F, Richards CW (1969) Internal friction and dynamic modulus transitions in hardened cement paste at low temperatures. Mater Struct 2:17–22
Radjy F, Ricahrds CW (1973) Effect of curing and heat treatment history on the dynamic mechanical response and the pore structure of hardened cement paste. Cem Concr Res 3:7–21
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Khoshnazar, R., Alizadeh, R., Beaudoin, J.J. et al. The physico-mechanical stability of C–S–H/polyaniline nanocomposites. Mater Struct 48, 67–75 (2015). https://doi.org/10.1617/s11527-013-0168-4
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DOI: https://doi.org/10.1617/s11527-013-0168-4