EE12: Performance of industrial thermal insulation renders

VALE, HENRIQUE1; MELO, HUMBERTO2; SOARES, ANTÓNIO3; FLORES-COLEN, INÊS4; GLÓRIA GOMES, MARIA5

1) Master in Civil Engineering Student, Instituto Superior Técnico, Universidade de Lisboa, Departamento de Engenharia Civil, Arquitectura e Georrecursos, macarrenas@hotmail.com

2) Master in Civil Engineering Student, Instituto Superior Técnico, Universidade de Lisboa, Departamento de Engenharia Civil, Arquitectura e Georrecursos, xbertinhox@hotmail.com

3) Master in Civil Engineering, Instituto Superior Técnico, Universidade de Lisboa, Departamento de Engenharia Civil, Arquitectura e Georrecursos, ortiz.soares@gmail.com

4) Assistant Professor, Instituto Superior T̩cnico РUniversidade de Lisboa, Departamento de Engenharia Civil, Arquitectura e Georrecursos, ines@civil.ist.utl.pt

5) Assistant Professor, Instituto Superior T̩cnico РUniversidade de Lisboa, Departamento de Engenharia Civil, Arquitectura e Georrecursos, mgloria@civil.ist.utl.pt

 

Currently, there is a concern in getting buildings with reduced environmental impact and with a good thermal comfort. The need to use new technologies to comply with the thermal requirements has been driven by the regulation for buildings. With this goal in mind, the use of thermal insulation systems for exterior facades has increased. In this regard, renders with high thermal insulation performance have emerged recently on the market.

This paper presents the discussion of the mechanical and physical characteristics of four industrial renders with thermal characteristics, comparing these with two traditional mortar mixtures in which sand is replaced with aggregates with insulating properties without any additions or admixtures. With these results it is noticed a need to incorporate high ratios of aggregate with thermal characteristics to achieve thermal insulation renders, affecting other physical (open porosity, dry bulk density) and mechanical (compressive and tensile strengths, dynamic elastic modulus) properties.

 

Keywords: Thermal insulation render; physical and mechanical performance