85 documents found, page 1 of 9
Laboratory experiments and modelling of the geochemical interaction of a gabbro...
Berrezueta, Edgar; Moita, Patricia; Pedro, Jorge; Abdoulghafour, Halidi; Mirão, José; Beltrame, Massimo; Barrulas, Pedro; Araújo, AlexandreThe potential for mineral carbonation of carbon dioxide (CO2) in a plutonic mafic rock is addressed in this work through a set of laboratory experiments on a gabbro-anorthosite sample from the Torrão - Odivelas Massif (Portugal). The experiment was conducted in two stages under pressure (8 MPa) and temperature (313.15 K) conditions similar to those expected around a CO2 injection well. Stage-I simulated dissolu...
Marble facades structural decay due to bowing – A comprehensive review
Pires, Vera; Lisci, Carla; Sitzia, Fabio; Lopes, Luis; Mirao, Jose; Dias, luis; neves, samuelNatural stone has been used in façades for centuries. Initially, stone elements were rather thick when used as construction elements, and the durability was appropriate. Scientific research on the properties of marble began in the late 19th century. In the following years, the thicknessof naturalfacadestonesdecreasedfromover1000mm(asinconstructionelements) to20-50mm (incladdingapplications)becauseofnewcuttingte...
Avanços no projeto LouMu – Muografia para levantamentos geofísicos
Teixeira, Pedro; Blanco, Alberto; Caldeira, Bento; Tomé, Bernardo; Alexandre, Isabel; Matos, João; Silva, Jorge; Borges, José Fernando; Cazon, LorenzoO Projeto LouMu é uma colaboração em curso entre o Laboratório de Instrumentação e Física Experimental de Partículas, o Instituto de Ciências da Terra – Universidade de Évora e o Centro Ciência Viva do Lousal, contando ainda com o apoio do Laboratório Nacional de Energia e Geologia. O objetivo é explorar o potencial da técnica de muografia na Mina do Lousal, com a finalidade de criar as condições para a utiliza...
ADVANCED TECHNOLOGIES FOR NATURAL STONE|INOVSTONE 4.0-IMPORTANT RESULTS FROM A ...
Pires, Vera; Mirao, Jose; Sitzia, Fabio; Lisci, Carla; Duarte, José; Dias, Luis; Alves, Tiago; Lopes, Luis; Martins, RubenThe natural stone as a building material has been revealed to have much lower life cycle costs than other materials as concrete, glass and steel. For this reason, it has a positive impact on the environment. However, several incidents with different pathologies on distinct lithologies has led to an increase in maintenance costs. The lack of knowledge on a stone performance over time and the frequent absence of ...
Advances Technologies for natural stone| Inovstone 4.0 important results from a...
Pires, Vera; Mirao, José; Sitzia, Fabio; Lisci, Carla; Duarte, José; Dias, Luis; Alves, Tiago; Lopes, Luis; Martins, RubenThe natural stone as a building material has been revealed to have much lower life cycle costs than other materials as concrete, glass and steel. For this reason, it has a positive impact on the environment. However, several incidents with different pathologies on distinct lithologies has led to an increase in maintenance costs. The lack of knowledge on a stone performance over time and the frequent absence of ...
Structural, physical and compositional proprieties analysis of mra arbles in a ...
Madrinha, João; Moreira, Noel; Lopes, Luis; Sitzia, Fábio; Mirão, José; Dionísio, Maria Amélia; Neves, SamuelThe application of scientific and technological research activities to innovation and to social and economic development is one of the great challenges of contemporary times. Such aspects are even more significant in the industrial sector, because the R&D activities can have a remarkable impact on the sustainable production of raw materials and on the economic viability of companies. Indeed, the development of ...
Produção de argamassa à base de cal a partir da calcinação de lamas carbonatada...
Azzalini, Antônio; Faria, Paula; Lopes, Luis; Martins, Ruben; Mourão, Paulo; Pires, VeraO presente trabalho apresenta uma alternativa de utilização para os resíduos provenientes do corte e polimento de rochas ornamentais carbonatadas gerados nas fábricas de processamento e/ou provenientes das pedreiras de mármore localizadas no Anticlinal de Estremoz e de calcário, no Maciço Calcário Estremenho - Portugal. Os resíduos, denominados por lamas carbonatadas ou “natas”, apresentam forte capacidade de l...
A Mina que ainda ficou: avaliação do potencial mineiro em prata (Ag) e ouro (Au...
Lopes, Luis; Vieira, Alexandre; Matos, João; Martins, RubenO objectivo desta apresentação é apresentar o estudo realizado na Universidade de Évora no âmbito da Tese de Mestrado em Engenharia Geológica realizada por Alexandre Vieira na qual se avaliaram os recursos geológicos associados aos resíduos mineiros da antiga exploração de sulfuretos da Mina de São Domingos, designadamente os depósitos de gossan e de rocha encaixante depositados junto à corta e aldeia mineira. ...
MARBLE PARDAIS_technical analysis
Pires de Almeida Ribeiro, Vera; Lopes, LuisThis technical study regards a decay evaluation on Bluette FM marble to understand its expected performance on a period of 16 years after installation. The physical mechanical properties evolution of this marble along time was based upon regional research of published work [1 - 2] and previous tests provided by Mármores Galrão company [3]. Notice that local geological heterogeneities can constrain the marble ex...
A Disputa Pelo Território e o Acesso às Matérias-Primas: Questão Antiga, Novas ...
Lopes, LuisA enorme discussão que se vive em torno deste tema termina sempre no consenso que a demanda pelos recursos minerais irá crescer de forma exponencial nos próximos anos. Tanto os Estados Unidos¹ como a Europa, definiram uma lista de minerais críticos, no sentido em que têm importância económica elevada, são estratégicos para as suas indústrias e correm riscos de escassez de oferta.