Concepts and Substantiations of Nano-Modification Technology of Building Composites Structures. Part 4. Sol-gel Technology of Nano-, Micro-Disperse Crystals of Portlandite for Contact-Condensation Compaction of Structures of Portlandite Stone and Composi

Number of journal: 11-2015
Autors:

Chernyshov E.M.
Potamoshneva N.D.
Artamonova O.V.

DOI: https://doi.org/10.31659/0585-430X-2015-731-11-65-74
УДК: 666.972.16

  

AbstractAbout AuthorsReferences
Results of studies and developments concerning the use of a mono-mineral binder, quick lime, for hydration structure formation of artificial Portlandite stone and production of clinkerless composites on its base are presented. It is shown that for producing the durable artificial Portlandite stone it is necessary to separate the stage of formation of individual crystals Са(ОН)2 from the stage of their aggregate formation. Technological options of the lime hydration under different conditions with the purpose to obtain individual micro- and nano-size crystals of Portlandite with non-equilibrium energy state are presented. The formation of artificial stone from individual crystals of Portlandite is made by compaction into the aggregates of a contact-condensation type. A possibility to obtain Portlandite, Portlandite-calcium carbonate, and Portlandite -aluminum silicate cementless contact-condensation systems of hardening which are able to harden directly under the forced compaction of nano- and micro-disperse particles of initial alkali and acid oxides and their hydrates endowed or purposefully endowed with the non-equilibrium energy state is shown.
E.M. CHERNYSHOV, Doctor of Sciences (Engineering), Academician of RAAСS (This email address is being protected from spambots. You need JavaScript enabled to view it.)
N.D. POTAMOSHNEVA, Candidate of Sciences (Engineering)
O.V. ARTAMONOVA, Candidate of Sciences (Chemistry) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Voronezh State University of Architecture and Civil Engineering (84, 20-letiya Oktyabrya Street, 394006, Voronezh, Russian Federation)

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For citation: Chernyshov E.M., Potamoshneva N.D., Artamonova O.V. Concepts and Substantiations of Nano-Modification Technology of Building Composites Structures. Part 4. Sol-gel Technology of Nano-, Micro-Disperse Crystals of Portlandite for Contact-Condensation Compaction of Structures of Portlandite Stone and Composites on Its Base. Stroitel’nye Materialy [Construction Materials]. 2015. No. 11, pp. 65-74. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2015-731-11-65-74


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