Scientific basis of design structures plaster solutions
DOI:
https://doi.org/10.26906/znp.2019.52.1691Keywords:
plaster solutions, new basic principles for designing their compositionsAbstract
High-rise construction volume increase and new wall materials use require changing the approach to the design of plaster
mortar compositions. The analysis has showed that it is possible to reduce the number of cracks in the plaster coating by increasing
the water holding capacity of the mortar mixture. To optimize the prescription parameters of the mortar mixture, the
five-factor experiment with fine aggregate and the filler with a low modulus of elasticity, disperse polymeric powders and
cellulose ethers, a polymer fiber for microdispersed reinforcement has been used. The obtained data indicate that the proposed
approach enables to obtain plaster mortars with physic mechanical characteristics that provide optimal working conditions
“masonry - plaster coatings”.
References
Halkin, S.L., Sazhnev, N.P., Sokolovskyi, L.V. et al.
(2006). The use of cellular concrete products. Theory and
practice. Minsk: SP LLC "Strinko".
Knatko, M.V., Efymenko, М.N. & Horshkov, А.S.
(2008). On the issue of durability and energy efficiency of
modern enclosing wall structures of residential, administrative
and industrial buildings. Magazine of Civil Engineering,
, 50-53.
Voldrzhykh, F. (1978). Expansion joints in the construction
of above-ground buildings. Moscow: Stroyizdat.
Emelianov, А.А. (1964). Damage to the exterior panels
of residential prefabricated buildings during thermal deformations
according to full-scale tests. Analysis of the causes
of accidents and damage in building structures, 2, 153-177.
Blazy, V. (2005). Design engineer directory. Building
physics. Moscow: Techno-sphere.
Runova, R.F., Sheinych, L.О., Helever, О.H. &
Hots, V.І. (2001). Fundamentals of production of wall and
finishing materials. Kyiv: KNUCA.
Sazhneva, N.N., Sazhnev, N.P. & Uretskaia, Е.А.
(2009). Protective systems for finishing cellular concrete of
reduced density. Building materials, 1, 17-19.
Paplavskys, Ya. & Frosh, А. (2010). Requirements for
plaster compositions for the exterior decoration of walls
made of cellular concrete. The problems of operational reliability
of external walls based on autoclaved aerated concrete
blocks and the possibility of their protection against
moisture. Plaster compositions for the exterior walls of aerated
concrete: materials of the workshop. SPb.: Publishing
House of the Polytechnic University.