The article discusses the importance of characterising adobe materials from existing constructions, particularly focusing on Caramel’s dwellings for potential rehabilitation. It highlights the lack of standardised testing methods for historic adobe masonry constructions, emphasising the need for test standards to homogenise procedures and increase knowledge in earth construction methods. Laboratory testing was conducted on adobe samples from three case studies, assessing properties such as bulk density, ultrasonic pulse velocity, thermal conductivity, abrasion resistance, strength, capillary absorption, and drying behaviour.
The study reveals variations in the properties of adobe samples from Pinhal Novo and Moita regions, indicating differences in composition and characteristics. The article emphasises the significance of material characterization in supporting repair methodologies for adobe structures. It mentions the necessity of experimental campaigns to collect adobe samples for analysis, as authorization for sampling can be challenging.
Various tests were performed on the adobe samples, including colour assessment, ultrasonic pulse velocity, surface hardness, thermal conductibility, bulk density, flexural strength, compression, and X-ray diffraction analysis to determine mineralogical characteristics. Results show that the properties of adobe vary based on the region and composition, highlighting the importance of understanding these variations for conservation and rehabilitation purposes.
In conclusion, the article underscores the importance of material characterization in preserving and rehabilitating historic adobe masonry constructions, particularly in regions like Pinhal Novo and Moita. The findings from the experimental campaign provide valuable insights into the properties of adobe materials, essential for making informed decisions regarding the conservation and rehabilitation of these structures.
