Research of Cracking Resistance of Thermal Insulation Coatings for Aerated Concrete

Abstract:

The high water demand of finishing compositions obtained using expanded perlite and vermiculite sand reduces the crack resistance of the resulting thermal insulation coatings. The use of microspheres as fillers should make it possible to increase the crack resistance of the resulting coatings. The crack resistance of lime heat-insulating coatings for the finishing of aerated concrete obtained using ash microspheres of aluminosilicate and expanded vermiculite sand has been determined. It is established, that coatings obtained using aluminosilicate ash microspheres, are characterized by good crack resistance due to low shrinkage deformations, high ultimate tensile properties and uniform distribution of moisture content in the process of moistening.

• Periodical: Materials Science Forum (Volume 974)
• Pages: 458-463
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.974.458
• Online since: December 2019
• Authors: Valentina Loganina*, Mikhail Frolov
• Keywords: Aerated Concrete, Aluminosilicate Ash Microspheres, Crack Resistance, Expanded Vermiculite Sand, Finishing Compositions, Material Properties, Moisture Content

References

[1] I.Palomar, G.Barluenga, A multiscale model for pervious lime-cement mortar with perlite and cellulose fibers, Construction and Building Materials. 160 (2018) 136-144.

DOI: 10.1016/j.conbuildmat.2017.11.032

[2] M.Cachova, D. Konakova, E.Vejmelkova, M.Vysvaril, Ternary binder based plasters with improved thermal insulating ability, 3rd International Conference on Innovative Materials, Structures and Technologies (IMST 2017) 251.

[3] Y.Govaertsa, R.Hayenb, M.Bouwc, A.Verdoncka, W.Meulebroeck, S.Mertens, Y.Gregoire, Performance of a lime-based insulating render for heritage buildings, Construction and Building Materials. 159 (2018) 136-144.

DOI: 10.1016/j.conbuildmat.2017.10.115

[4] I.Palomar, G.Barluenga, J.Puentes, Lime–cement mortars for coating with improved thermal and acoustic performance, Construction and Building Materials. 75 (2015) 306-314.

DOI: 10.1016/j.conbuildmat.2014.11.012

[5] F.Koksala, O.Gencelb, M.Kayac, Combined effect of silica fume and expanded vermiculite on properties of lightweight mortars at ambient and elevated temperatures, Construction and Building Materials. 88 ( 2015) 175-187.

DOI: 10.1016/j.conbuildmat.2015.04.021

[6] H. Shoukrya, M.Kotkatab, S.Abo-EL-Eneinc, M.Morsya, S.Shebla, Enhanced physical, mechanical and microstructural properties of lightweight vermiculite cement composites modified with nano metakaolin, Construction and Building Materials. 112 (2016) 276-283.

DOI: 10.1016/j.conbuildmat.2016.02.209

[7] V.S. Semenov, D.V. Oreshkin, T.A. Rozovskaya, Light-weight masonry mortars with hollow glass microspheres for winter conditions, Applied Mechanics and Materials. 467 (2014) 247-252.

DOI: 10.4028/www.scientific.net/amm.467.247

[8] J.P. Chen, Experimental Study of External Thermal Insulation Mortar Based on Fly Ash Floating Bead, Advanced Materials Research. 476-478 (2012) 1643-1646.

DOI: 10.4028/www.scientific.net/amr.476-478.1643

[9] D.Konakova, M.Cachova, E.Vejmelkova, M.Keppert, M.Jerman, P.Bayer, P.Rovnanikova, R.Cerny, Lime-based plasters with combined expanded clay-silica aggregate: Microstructure, texture and engineering properties, Cement and Concrete Composites. 83 (2017) 374-383.

DOI: 10.1016/j.cemconcomp.2017.08.005

[10] P.Cachim, A.Velosa, F.Rocha, Effect of Portuguese metakaolin on hydraulic lime concrete using different curing conditions, Construction and Building Materials. 24 (2010) 71-78.

DOI: 10.1016/j.conbuildmat.2009.08.010

[11] V.S. Lesovik, I.L. Chulkova, L.K. Zagordnyuk, A.A. Volodchenko, D.Yu.Popov, The Role of the Law of Affinity Structures in the Construction Material Science by Performance of the Restoration Works, Research Journal of Applied Sciences. 9 (12) (2014) 1100-1105.

[12] V.I. Loganina, M.V. Frolov, Yu.P.Skachkov, Lime composition for the walls of buildings made of aerated concrete, International Symposium on Mechanical Engineering and Material Science. 93 (2016) 165-169.

DOI: 10.2991/ismems-16.2016.29

[13] V.I. Loganina, S.N. Kislitsyna, M.V. Frolov, Addition on the Basis of Mix of the Synthesized Hydrosilicates of Calcium and Aluminosilikates for Dry Building Mixtures, International Conference on Industrial Engineering, ICIE 2016. Procedia Engineering. 150 (2016) 1627-1630.

DOI: 10.1016/j.proeng.2016.07.141

[14] V.I. Loganina, M.V. Frolov, Yu.P.Skachkov, Substantion of selection of componets at creation of thermal insulating dry building mixtures, International Journal of Engineering and Technology. 7 (4) 2018 4341-4344.

[15] V.I. Loganina, M.V. Frolov, N.I. Makridin, Thermal Insulation Lime Compounds for Walls of Aerated Concrete, International Journal of Applied Engineering Research. 11 (18) (2016) 9443-9445.

DOI: 10.21506/j.ponte.2017.4.29