Efflorescence Processes in Exterior Wall Surface of Buildings

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Abstract:

Alkali hydroxide and alkali salt possessing high solubility are considered to be one of main reasons for efflorescence occurrence in exterior walls of buildings made from solid masonry units. Analysis of alkaline attack on efflorescence processes in the surface of exterior walls of buildings is presented herein. Volumetric changes in solid phase materials in the course of alkali hydration and carbonation reactions under efflorescence are calculated by the proposed procedure. The indicated processes are confirmed by laboratory simulation and by field studies of ceramic block and lime brick masonries, and vibropressed concrete blocks within the Republic of Bashkortostan.

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115-121

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August 2019

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[1] Babkov V.V., Klimov V.P., Sakhibgareev R.R., Chuykin A.Ye., et al. Mechanisms of efflorescence formation on exterior walls surfaces of buildings made of masonry units // Construction materials. No.8 (2007) 74.

Google Scholar

[2] Rozental N.K., Chekhniy G.V. Reasons for appearance and control methods of efflorescence formation on surface of engineering structures // Proceedings of the 1st conference on concrete and reinforced concrete problems Concrete at the turn of the third Millenium,. Vol.3. (2001) 1444.

Google Scholar

[3] Bulatov B.G., Nedoseko I.V. Automation of control system for making phosphogypsum-based wall items // Efficiency improvement in making and applying gypsum materials and items therefrom. Proceedings of VIII international research-to-practice conference. Edited by A.F. Buryanova (2016) 21-25.

Google Scholar

[4] Babkov V.V., Gabitov A.I., Chuykin A.Ye., et al. Efflorescence processes on the surface of exterior walls of buildings made under wall materials // Bash. Chem. J.. Vol.14 No.3 (2007) 86-90.

Google Scholar

[5] Bedov A.I., Gabitov A.I., Znamensky V.V., Structural Assessment, Renovation and Strengthening of Frames of Operating Buildings and Structures. In two parts. Part II. Structural Renovation and Strengthening of Frames of Operating Buildings and Structures. Edited by A.I. Bedov: Guide. M: ASV Press (2017) 924.

Google Scholar

[6] Luginina I.G., Afonina I.N. Additives affecting efflorescence // Cement and application thereof. No.4 (2008) 116-117.

Google Scholar

[7] Alexandrovsky S.V. Durability of exterior enclosing structures. М: NIISPh RAASN (2003) 332.

Google Scholar

[8] Gaisin A.M, Samokhodova S.Yu, Nedoseko I.V, Paymetkina A.Yu, Comparative Assessment of Specific Heat Loss through Elements of Exterior Walls of Residential Buildings to be Determined by Different Methods // Residential construction No 5 (2016) 36-40.

Google Scholar

[9] Babkov V.V., Mokhov A.V., Klimov V.P., Chuykin A.Ye. Stages of efflorescence occurrence in exterior wall surface of buildings // Construction bulletin of the Russian Academy, Proceedings of construction, section of the Russian Academy of Engineering (2009) 44-45.

Google Scholar

[10] Ryazanov A.N, Ryazanova V.A, Vinnichenko V.I, Technology and properties of hydraulic binding agents from cryoannealing of two-component burden // Safety of Russia building fund. Problems and solutions Proceedings of international academic reading. Kursk State University (2015) 95-102.

Google Scholar

[11] Gaisin A.M, Gareev R.R., Babkov V.V., Nedoseko I.V., Samokhodova S.Yu. Twenty Year Experience in Application of High-Hollow Vibropressed Concrete Blocks in the Republic of Bashkortostan. // Construction materials No.4 (2015) 82-86.

Google Scholar

[12] Strakhov A.V., Fomin A.S., Baklan D.Yu. Ways to reduce efflorescence formation in concrete items // Resource energy saving technologies in construction complex of the region. No.7 (2016) 107-111.

Google Scholar

[13] Zhernovsky I.V., Bondarenko A.I., Klochkov A.V., Strokova V.V. Operational activity affecting efflorescence occurrence in fine concrete // Bulletin of Irkutsk State Technical University.. No.9 (68) (2012) 104-109.

Google Scholar

[14] Yamilova V.V., Goryachev V.O., Ryazanov A.N. Directions in applying alternative sources for construction materials // Problems of construction complex of Russia, Proceedings of the XX International scientific and technical conference (2016) 313-314.

Google Scholar

[15] Mirsaev R.N., Babkov V.V., Nedoseko I.V., Yunusova S.S., Pechenkina T.V., Krasnogorov M.I. Experience in production and maintenance of gypsum wall items // Construction materials. No.3 (2008) 78-80.

Google Scholar

[16] Silaenkov Ye.S. Durability of cell concrete items. – M.: Stroyizdat (1986) 176.

Google Scholar

[17] Ryazanov A.N., Vinnichenko V.I., Termodynamical analysis of the possibilities of the process intensification of dissociation magnesium carbonate containing in batch coal // Bulletin of Voronezh State Technological University. Series: Engineering sciences V 9 No 6.2 (2013) 22-24.

Google Scholar

[18] Mokhov A.V. Repeatability of efflorescence occurrence in exterior wall surface of building of vibropressed concrete units and ways to stop thereof // dissertation for a candidature for a PhD degree in technical studies / Ufa State Petroleum Technical University, Ufa (2010).

Google Scholar

[19] Salov A.S., Chernova A.R., Zanina A.F. Reducing of concrete slab consumption by applying extra heavy concrete and rebars / From collection: Young scientists to innovation development of agro-industrial complex, proceedings of International academic workshop for young researchers (2016) 57-62.

Google Scholar

[20] Salov A.S., Khuzina L.S., Pyzhjanova D.V. Refurbishment of residential houses without residents eviction // Problems of construction complex of Russia, Proceedings of the XX International scientific and technical conference (2016) 26-28.

Google Scholar

[21] Babkov V.V., Kolesnik G.S., Gaisin A.M., Gareev R.R., Chikota A.N. Bearing triple outer walls of buildings with enhanced thermal protection // Building materials No 6 (1998) 16-18.

Google Scholar