Piçarra
Biographic Data
| ID | 147481 |
|---|---|
| NAME | Piçarra |
| FAMILY NAME | Piçarra |
| SIGNATURE | PIÇARRA |
| AFFILIATIONS | University of Lisbon |
| ORCID | 0000-0002-1567-9242 |
| VERIFIED | Yes |
| TOTAL WORKS | 5 |
| TOTAL CITATIONS | 3 |
| WORKS AS AUTHOR | 5 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2019 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 1 |
Study of an eco-friendly path to prepare effective alkoxysilane-based consolidants for stone conservation without organic solvents
New mixtures with Dyn 40 oligomeric precursor and acid/base catalysts were designed. • Catalyst and water ratios play an important role in the preparation of adequate mixtures. • Both types of catalysts are capable to generate formulations with suitable characteristics. • Designed mixtures were capable to improve the drilling resistance of stones. • Effective stone consolidants were developed without the addition of solvents. Finding a balance be…
Sonocatalysis
Consolidating efficacy of diammonium hydrogen phosphate on artificially aged and naturally weathered coarse-grained marble
The effects induced by diammonium hydrogen phosphate (DAP) on coarse marble varieties susceptible to granular disintegration as consolidation material is still poorly addressed. The work aims at investigating the behavior and efficacy of diammonium hydrogen phosphate(DAP)-based consolidant prepared in laboratory onto weathered coarse-grained marbles and, in the process, to unveil if the treatment investigated is a possible option to consolidate T…
Alkoxysilane-based sols for consolidation of carbonate stones
The need of a thoughtful methodology to support the design and development of new consolidation products in built heritage is consequence of the demanding requirements that consolidation treatments in built heritage should fulfill; of physical and chemical specificities of porous carbonate stones and of sol–gel processes complexity. Absence of well-defined planning strategies and systematic studies poses serious difficulties in what concerns vali…
Alkoxysilane-based sols for consolidation of carbonate stones
Consolidating efficacy of diammonium hydrogen phosphate on artificially aged and naturally weathered coarse-grained marble
The effects induced by diammonium hydrogen phosphate (DAP) on coarse marble varieties susceptible to granular disintegration as consolidation material is still poorly addressed. The work aims at investigating the behavior and efficacy of diammonium hydrogen phosphate(DAP)-based consolidant prepared in laboratory onto weathered coarse-grained marbles and, in the process, to unveil if the treatment investigated is a possible option to consolidate T…
Alkoxysilane-based sols for consolidation of carbonate stones
The need of a thoughtful methodology to support the design and development of new consolidation products in built heritage is consequence of the demanding requirements that consolidation treatments in built heritage should fulfill; of physical and chemical specificities of porous carbonate stones and of sol–gel processes complexity. Absence of well-defined planning strategies and systematic studies poses serious difficulties in what concerns vali…
Alkoxysilane-based sols for consolidation of carbonate stones
Alkoxysilane-based sols for consolidation of carbonate stones
Alkoxysilane-based sols for consolidation of carbonate stones
The need of a thoughtful methodology to support the design and development of new consolidation products in built heritage is consequence of the demanding requirements that consolidation treatments in built heritage should fulfill; of physical and chemical specificities of porous carbonate stones and of sol–gel processes complexity. Absence of well-defined planning strategies and systematic studies poses serious difficulties in what concerns vali…
Consolidating efficacy of diammonium hydrogen phosphate on artificially aged and naturally weathered coarse-grained marble
The effects induced by diammonium hydrogen phosphate (DAP) on coarse marble varieties susceptible to granular disintegration as consolidation material is still poorly addressed. The work aims at investigating the behavior and efficacy of diammonium hydrogen phosphate(DAP)-based consolidant prepared in laboratory onto weathered coarse-grained marbles and, in the process, to unveil if the treatment investigated is a possible option to consolidate T…
Sonocatalysis
Study of an eco-friendly path to prepare effective alkoxysilane-based consolidants for stone conservation without organic solvents
New mixtures with Dyn 40 oligomeric precursor and acid/base catalysts were designed. • Catalyst and water ratios play an important role in the preparation of adequate mixtures. • Both types of catalysts are capable to generate formulations with suitable characteristics. • Designed mixtures were capable to improve the drilling resistance of stones. • Effective stone consolidants were developed without the addition of solvents. Finding a balance be…
Building materials and conservation (5 works) · Materials Science (5 works) · Aerogels and thermal insulation (3 works) · Engineering (3 works) · Geology (3 works) · Metallurgy (3 works) · Carbonate (2 works) · Chemical Engineering (2 works) · Chemistry (2 works) · Concrete and Cement Materials Research (2 works)