Experimental investigation On Earthen Building Materials

ISBN-13: 9783843357548 / Angielski / Miękka / 2012 / 184 str.

Stefania Liuzzi

Opis

This work shows an experimental investigation carried out on different unfired earth building materials developed at Politecnico di Bari (Dipartimento di Architettura e Urbanistica) in collaboration with the University of Nottingham (Nottingham Centre for Geomechanics, Division of Materials, Mechanics and Structures). Several hygrothermal parameters were measured in laboratory: thermal conductivity and thermal diffusivity, water vapour permeability, water vapour resistance coefficient, sorption curves. These data were correlated with physical parameters: dry density, porosity. Furthermore some mechanical strengths were tested. The results achieved have demonstrated that the use of different clays and additives produces several changes in the microstructure, significantly influencing the thermal and hygric performances of the final products. The hygrothermal behaviour of a TESTROOM in a Mediterranean climate was also simulated by WUFI+ software. It is demonstrated that earthen materials, compared to traditional ones, show a great buffering capacity both in summer and winter. Furthermore they can contribute to achieve energy saving when HVAC system is used.

O autorze

Stefania Liuzzi took a degree in Building Engineering and Architecture at Politecnico di Bari in 2008, with 110/110 cum laude. From 2009 to 2012 she attended the PhD school in Building Engineering at Politecnico di Bari, with Prof. P. Stefanizzi, M. Petrella (internal supervisors), Prof. M. Hall (external supervisor - University of Nottingham).