Sazonova N.A., Skripnikova N.K., Otmakhov V.I., Badenikova M.V.

UDC 666.9.017

NATAL'YA A. SAZONOVA, PhD, A/Professor,

n.a.sazonova@mail.ru

Angarsk State Technical Academy,

60, Chaikovskii Str., 665835, Angarsk, Russia

NELLI K. SKRIPNIKOVA, DSc, Professor,

nks2003@mail.ru

Tomsk State University of Architecture and Building,

2, Solyanaya Sq., 634003, Tomsk, Russia

VLADIMIR I. OTMAKHOV, DSc, Professor,

otmahov2004@mail.ru

Tomsk State University,

36, Lenin Ave., 634050, Tomsk, Russia

MARGARITA V. BADENIKOVA, A/Professor,

mvbadenikova@mail.ru

Angarsk State Technical Academy,

60, Chaikovskii Str., 665835, Angarsk, Russia

STRUCTURE  FORMATION  OF  CEMENT  STONE  BASED  ON  FUSED  CEMENT  CLINKER

The paper presents research into the structure of cement stone based oncement clinker, synthesized by the low-temperature plasma. The experiments show that during hydration the intensive heat generation and a rapid decrease of the clinker content occur. Local newgrowths having a columnar habitus are then formed with the following formation of fibrous and dendrite-like compounds of 0,21×2,16 µm size. These newgrowths reinforce and strengthen the specimens up to 81,9–84,2 MPa.

Keywords: cement stone; cement clinker; hydration; calcium–silicate–hydrate; Portlandite; low-temperature plasma.

References

  1. Taylor H.F.W. Cement Chemistry, 2nd edition. Thomas Telford, London. 1997. 459 p.
  2. Jartner E.M. Jaidies J.K.  Hydration mechanisms. Mater. Sci. Concr. I. Westerville (Ohio). 1989. Pp. 95–125.
  3. Jawed I. Hydration of Portland cement. J. Amer. Ceram. Soc. Westerville (Ohio), 1990. Pp. 39–81.
  4. Timashev V.V. Izbrannye trudy. Sintez i gidratatsiya vyazhushchikh materialov [Synthesis and hydration of cements]. Moscow : Nauka Publ., 1986. 424 p. (rus)
  5. Volokitin G.G., Skripnikova N.K., Pozdnyakova N.A., Volokitin O.G., Lutsenko A.V. Vysokotemperaturnye sposoby proizvodstva tsementnogo klinkera s ispol'zovaniem nizkotemperaturnoi plazmy i elektrodugovogo progreva (dzhoulev nagrev) [High-temperature method of manufacturing cement clinker using low-temperature plasma and arc heating (Joule heating)]. Vestnik TSUAB. 2008.No. 4. Pp. 106–112. (rus)
  6. Skripnikova N.K., Sazonova N.A., Volokitin G.G. Synthesis of cement clinker using low-temperature. Proc. 5th Int. Sci. Conf. ‘European Science and Technology’. Munich. 2013. V. 1. Рp. 476–480.
  7. Sazonova N.A., Skripnikova N.K., Novikova L.E., Lutsenko A.V. Struktura tsementnogo klinkera pri plazmokhimicheskom sinteze i ee vliyanie na svoistva tsementa [Cement clinker structure at plasma-chemical synthesis and its effect on cement properties]. Proc. Int. Sci. Conf. of Young Scientists ‘Advanced Materials in Construction and Engineering’. Tomsk: TSUAB Publ., 2014. Pp. 159–169. (rus)
  8. Constantinides G., Ulm F.-J. Invariant mechanical properties of calcium–silicate–hydrates (C–S–H) in cement-based materials: Instrumented nanoindentation and microporomechanical modeling. MIT-CEE Res. Rep. R06-01 (PhD thesis). Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, Cambridge MA, 2006. 507 p.
  9. Lesovik V.V., Potapov V.V., Alfimova N.I., Ivashova O.V. Povyshenie effektivnosti vyazhushchikh za schet ispol'zovaniya nanomodifikatorov. Stroitel'nye materialy [Cement efficiency improvement due to nanomodifiers]. Construction Materials. 2011. No. 12. Pp. 60–62.(rus)
  10. Volzhenskii A.V., Burov Yu.S., Kolokol'nikov V.S. Mineral'nye vyazhushchie veshchestva: tekhnologiya i svoistva [Cementitious materials: technology and properties]. Moscow : StroyizdatPubl., 1979. 476 p. (rus)
  11. Sazonova N.A., Skripnikova, N.K., Volokitin G.G. Physical and chemical process of hydration of nanostructured binder synthesized in the conditions of low-temperature plasma. Proc. 1st Int. Conf. Chicago. 2013. V. II. Pp. 463–466.

Full text | (827 Кб)