A study on the compatibility of contemporary neighbouring plasters with autoclaved aerated concrete (AAC)

Date

2006-03-17

Author

Andolsun, Simge
Tavukçuoğlu, Ayşe
Saltık, Emine Nevin
Düzgüneş, Arda

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Especially when in combination, building materials exposed to atmospheric conditions must be compatible in terms of their physical and mechanical properties for their longterm performance. As use of Autoclaved Aerated Concrete (AAC) often involves protective plasters and jointing adhesives, compatibility problems mostly develop at their interfaces. This study was conducted to determine the compatibility of two types of AAC (G2 and G4) with some cement-based plasters and jointing adhesive specially produced for AAC by a Turkish company, where emphasis was on their water vapor diffusion resistance (µ), their dynamic modulus of elasticity (Emod) and their drying under the construction applications recommended by the company. In practice, the AAC plasters examined in this study are applied as successive layers, these being base coat, under-coat and plain or water repellent finish coat. The bulk density, total porosity, water vapor permeability, drying rate, ultrasonic velocity and Emod values of AAC, plaster samples and the jointing adhesive were subjected to laboratory analyses. The compositional properties of AAC were also investigated through analyses of thin sections by optical microscopy along with XRD and pozzolanic activity analyses. Results showed that the water repellent finish coat seemed to be the best among the other plasters in terms of its water vapor permeability, modulus of elasticity values and drying behavior. It was also concluded that further studies are necessary on the adherence of plasters to AAC surfaces and their dilatation properties for the understanding of their long-term performance. Keywords: Autoclaved Aerated Concrete (AAC), Cement-Based Plasters, Compatibility, Material Properties, Water Vapor Permeability

URI

http://www.irbnet.de/daten/iconda/06059012523.pdf
https://hdl.handle.net/11511/82409

Conference Name

A study on the compatibility of contemporary neighbouring plasters with autoclaved aerated concrete (AAC), First International CIB Endorsed METU Postgraduate Conference on Built Environment and Information Technologies (PGRC’06), Ankara, Türkiye, 17 - 18 Mart 2006

Collections

Department of Architecture, Conference / Seminar

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Citation Formats

S. Andolsun, A. Tavukçuoğlu, E. N. Saltık, and A. Düzgüneş, “A study on the compatibility of contemporary neighbouring plasters with autoclaved aerated concrete (AAC),” presented at the A study on the compatibility of contemporary neighbouring plasters with autoclaved aerated concrete (AAC), First International CIB Endorsed METU Postgraduate Conference on Built Environment and Information Technologies (PGRC’06), Ankara, Türkiye, 17 - 18 Mart 2006, Ankara, Türkiye, 2006, Accessed: 00, 2021. [Online]. Available: http://www.irbnet.de/daten/iconda/06059012523.pdf.