Basic and Thermal Characteristics of Render with Crushed Brick

Abstract:

Recycled finely crushed brick appears to be a suitable additive to lime or cement binder in render mixtures. This waste material indicates good pozzolanic properties and actively takes part in formation of chemical bonds in materials structure. The main objective of this paper is to find an appropriate ratio of waste crushed brick that is used as a replacement of other constituents represented by lime hydrate and silica sand. Besides it aims to find out a perspective utilization of such a waste material. Finely crushed brick originates from the production of thermal insulating brick blocks which is ecologically and economically advantageous. In this work, results of measured material parameters of render mixtures with different replacement ratios of binder (lime hydrate) and simultaneously filler (silica sand) by finely crushed brick are presented. Among the studied parameters basic physical properties (measured by water vacuum saturation method and by helium pycnometry), characterization of pore system (by mercury porosimetry) and thermal characteristics are presented.

• Periodical: Materials Science Forum (Volume 824)
• Pages: 7-11
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.824.7
• Online since: July 2015
• Authors: Monika Čáchová*, Eva Vejmelková, Martin Keppert, Lukáš Fiala
• Keywords: Basic Physical Properties, Crushed Brick, Lime, Pore Size Distribution, Render, Thermal Properties

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