Durability Properties of Autoclaved Aerated and High Performance Foamed Concrete
SynerCrete’18: Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time 2018
Genādijs Šahmenko, Aleksandrs Korjakins, Eva Namsone

Autoclaved Aerated Concrete (AAC) and Foam Concrete (FC) are sustainable lightweight intelligent materials for the modern building industry. FC is a more universal material and it may be applied both for monolithic and prefabricated constructive elements. Flexible technology of FC allows achieving a wide range of properties (density 200 – 1800 kg/m3 and compressive strength 0.2 – 40 MPa). The range of properties of a typical AAC includes density 250 – 800 kg/m3 and compressive strength 0.5 – 10 MPa, but normal weight readymixed concrete is characterized by density > 2000 kg/m3 and compressive strength 30 – 50 MPa. In comparison with ACC, FC is more durable, at the same time, FC has lower strength at the same density, comparing to the aerated autoclaved concrete. The aim of this study is to elaborate high performance foam concrete, characterized by high durability properties and competitive compressive strength. In the framework of this study, foam concrete compositions were elaborated, using intensive mixing technology and micro admixtures in order to improve their physical and mechanical properties. Properties of the elaborated compositions, such as density, compressive strength, capillary water absorption and frost resistance, were compared with the properties of commercially used AAC. The obtained FC compositions are characterized by low water absorption, high frost resistance and strength – density relation comparable with AAC.


Atslēgas vārdi
CONCRETE
DOI
10.5281/zenodo.1405563
Hipersaite
https://synercrete.com/wp-content/uploads/2018/10/SynerCrete18_Proceedings.pdf

Šahmenko, G., Korjakins, A., Namsone, E. Durability Properties of Autoclaved Aerated and High Performance Foamed Concrete. No: SynerCrete’18: Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time, Portugāle, Funchal, Madeira Island, 24.-26. oktobris, 2018. Funchal: RILEM Publications S.A.R.L., 2018, 153.-158.lpp. ISBN 978-2-35158-202-2. e-ISBN 978-2-35158-203-9. Pieejams: doi:10.5281/zenodo.1405563

Publikācijas valoda
English (en)
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