201 documents found, page 1 of 21
Recent advancements on the effect of bio-stabilisation on the mechanical and hy...
Losini, Alessia Emanuela; Bruno, Agostino Walter; Posani, Magda; Armistead, Samuel J.; Babafemi, Adewumi John; Faria, Paulina; Guihéneuf, SimonRaw earth is a viable alternative to traditional energy intensive building materi-als like concrete and fired clayey materials. It can be locally sourced and serves as an excellent hygrothermal buffer, regulating indoor temperature and relative humidity. Unlike mainstream building materials, earth is also fully recyclable at the end of its life cycle. However, stabilisation – the addition of supplementary mater...
Exploring alternative stabilization for compressed earth blocks
Cruz, Ricardo; Bogas, José Alexandre; Ranesi, Alessandra; Faria, PaulinaCompressed earth blocks (CEB) are gaining attention as a sustainable alternative to traditional masonry units due to their low embodied energy, reduced carbon emissions, and use of locally sourced materials. However, their vulnerability to water, particularly in regions with heavy rainfall and flooding, remains a major challenge. To address this, Portland cement is often used as a stabilizer, but its significan...
Long-term performance of thermal insulating composite systems based on water re...
Borsoi, Giovanni; Parracha, João L.; Bersch, Jéssica D.; Garcia, Ana; Dionísio, Amélia; Faria, Paulina; Veiga, Rosário; Flores-Colen, InêsExternal Thermal Insulation Composite Systems (ETICSs) are increasingly applied in both new construction and energy retrofitting, where long-term durability under environmental exposure is critical to preserving thermal efficiency. Moisture ingress represents a key degradation factor, reducing insulation performance and undermining energy savings promoted by the ETICS. The effectiveness of these systems is stro...
Hidden in the tombs
Gomes, Maria Inês Sardinha Gomes; Rodrigues, J. Delgado; Candeias, A.; Pombo Cardoso, I.; Faria, PaulinaStone tombs form part of the rich heritage of Portuguese sculpture, associated with important monuments. A considerable number of very degraded tombs, carved from highly porous limestone, are known. Several institutions have requested support from the José de Figueiredo Laboratory as its preservation is at risk. To slow down or mitigate these phenomena, different consolidation treatments have been developed. Ho...
Long-Term Performance of Thermal Insulating Composite Systems Based on Water Re...
Borsoi, Giovanni; Parracha, João L.; Bersch, Jéssica D.; Garcia, Ana R.; Dionísio, Amélia; Faria, Paulina; Veiga, Rosário; Flores-Colen, InêsExternal Thermal Insulation Composite Systems (ETICSs) are increasingly applied in both new construction and energy retrofitting, where long-term durability under environmental exposure is critical to preserving thermal efficiency. Moisture ingress represents a key degradation factor, reducing insulation performance and undermining energy savings promoted by the ETICS. The effectiveness of these systems is stro...
Characterization of an Arundo donax-based composite: A solution to improve indo...
Cintura, Eleonora; Faria, Paulina; Molari, Luisa; Barbaresi, Luca; D'ORAZIO, DARIO; Nunes, LinaABSTRACT: Arundo donax (giant reed or giant cane) is a widely available, perennial, invasive, non-food crop, present worldwide and employed for several uses, including building practices. Considering the increasing demand for sustainable building materials, A. donax can be an efficient solution. This study investigated its properties as a bio-aggregate mixed with a sodium silicate solution as an adhesive. A hor...
Effect of the rehydration method on the physical–mechanical properties of CO2-C...
Azevedo, Adriano G. S.; Molano, Juan Camilo Adrada; Parente, Igor; Freitas, Taís O. G.; Camões, Aires; Faria, Paulina; Savastano Jr., HolmerThis article analyzes the effect of the rehydration method on the physical–mechanical properties of accelerated carbonation-cured magnesium-based fiber cement boards. The rehydration process of the boards was analyzed in conjunction with the analysis of the pre-curing time before accelerated carbonation (24, 48, and 72 h before carbonation), resulting in eight different curing parameters used in this investigat...
Bio-based boards made of hazelnut shell and A. donax for indoor applications - ...
Cintura, Eleonora; Faria, Paulina; Molari, Luisa; Mazzocchetti, Laura; Dalle Donne, Matteo; Giorgini, Loris; Nunes, LinaThe present study investigated the reaction to fire of bio-based boards for indoor applications made of A. donax and hazelnut shells as aggregates. A sodium silicate solution was employed as the adhesive due to its several advantages. Among others, the possibility of moderating some of the main drawbacks of bio-based building composites, such as the resistance to fire. The considered materials were analysed bot...
A comprehensive chemical, physical, mechanical, and thermal characterization of...
Elmoudnia, Hicham; Faria, Paulina; Jalal, Rachid; Waqif, Mohamed; Saâdi, LatifaThis research aims to extract fibers from Washingtonia robusta petiole waste (WRP) and characterize them to investigate their potential. WRP fibers were treated for 2 h using different concentrations of NaOH solution (1, 3, 5, and 10% by weight) and then soaked for 2 h. The treatments adopted have shown improvements in certain chemical, physical, morphological, thermal, and mechanical properties. This study rev...
Hygroscopicity and Morphology of Bio-Based Boards—The Influence of the Formulation
Cintura, Eleonora; Nunes, Lina; Molari, Luisa; Bettuzzi, Matteo; Morigi, Maria Pia; Brancaccio, Rosa; Faria, PaulinaThe internal structures and the hygroscopicity of bio-based boards consisting of giant reed (Arundo donax L.) and hazelnut shells as bio-aggregates, and a sodium silicate solution as the adhesive, were investigated. The aim was to evaluate the influence of each material (the bio-aggregates and adhesive) and their distributions in the boards on the final performance. By carrying out X-ray computed tomography, th...