Category Archives: Papers

STARTCON19 conference publication

  The STARTCON19 International Doctorate Students Conference + Lab Workshop in Civil Engineering is available online at: https://knepublishing.com/index.php/KnE-Engineering/issue/view/217 This conference contains selected papers from the International Doctorate Students Conference + Lab Workshop in Civil Engineering, held in Portugal on the 26th-28th

STARTCON19 conference publication

  The STARTCON19 International Doctorate Students Conference + Lab Workshop in Civil Engineering is available online at: https://knepublishing.com/index.php/KnE-Engineering/issue/view/217 This conference contains selected papers from the International Doctorate Students Conference + Lab Workshop in Civil Engineering, held in Portugal on the 26th-28th

Preliminary study of the rheological and mechanical properties of alkali-activated concrete based on tungsten mining waste mud

Abdelhakim Benhamouda and João Castro-Gomes Centre of Materials and Building Technologies (C–MADE/UBI), Department of Civil Engineering and Architecture, University of Beira Interior (UBI), 6201–001 Covilhã, Portugal. Abstract. The rheological properties of Portland cement (PC) concrete have been widely studied comparably with

Preliminary study of the rheological and mechanical properties of alkali-activated concrete based on tungsten mining waste mud

Abdelhakim Benhamouda and João Castro-Gomes Centre of Materials and Building Technologies (C–MADE/UBI), Department of Civil Engineering and Architecture, University of Beira Interior (UBI), 6201–001 Covilhã, Portugal. Abstract. The rheological properties of Portland cement (PC) concrete have been widely studied comparably with

Effect of activators on hybrid alkaline binder based on tungsten mining waste and ground granulated blast furnace slag

Naim Sedira, João Castro-Gomes Centre of Materials and Building Technologies (C–MADE/UBI), Department of Civil Engineering and Architecture, University of Beira Interior (UBI), 6201–001 Covilhã, Portugal Abstract: This article illustrates the effects of different combinations of alkaline activator solutions (sodium silicate

Effect of activators on hybrid alkaline binder based on tungsten mining waste and ground granulated blast furnace slag

Naim Sedira, João Castro-Gomes Centre of Materials and Building Technologies (C–MADE/UBI), Department of Civil Engineering and Architecture, University of Beira Interior (UBI), 6201–001 Covilhã, Portugal Abstract: This article illustrates the effects of different combinations of alkaline activator solutions (sodium silicate

Utilização de resíduos de vidro em pastas de cimento baseadas em óxido de magnésio, curadas por carbonatação acelerada

Erick Grünhäuser Soares and João Castro Gomes Centre of Materials and Building Technologies (C–MADE/UBI), Department of Civil Engineering and Architecture, University of Beira Interior (UBI), 6201–001 Covilhã, Portugal Resumo: Nesse estudo preliminar foi avaliada a resistência à compressão em pastas

Utilização de resíduos de vidro em pastas de cimento baseadas em óxido de magnésio, curadas por carbonatação acelerada

Erick Grünhäuser Soares and João Castro Gomes Centre of Materials and Building Technologies (C–MADE/UBI), Department of Civil Engineering and Architecture, University of Beira Interior (UBI), 6201–001 Covilhã, Portugal Resumo: Nesse estudo preliminar foi avaliada a resistência à compressão em pastas

Design of alkali-activated aluminium powder foamed materials for precursors with different particle sizes

Imed Beghoura and João Castro-Gomes C-MADE, Centre of Materials and Building Technologies, Department of Civil Engineering and Architecture, University of Beira Interior, Calçada Fonte do Lameiro Edifício II das Engenharias, 6201-001 Covilhã, Portugal Abstract Alkali-activated foams (AAFs) were produced using three

Design of alkali-activated aluminium powder foamed materials for precursors with different particle sizes

Imed Beghoura and João Castro-Gomes C-MADE, Centre of Materials and Building Technologies, Department of Civil Engineering and Architecture, University of Beira Interior, Calçada Fonte do Lameiro Edifício II das Engenharias, 6201-001 Covilhã, Portugal Abstract Alkali-activated foams (AAFs) were produced using three

Development of porous tungsten mud waste-based alkali- activated foams with low thermal conductivity

Imed Beghoura and João Castro Gomes Abstract: Aim of this study was to produce alkali-activated foams with low thermal conductivity. Different precursors’ maximum particles sizes of 150μm, 300μm, and 500μm using a blend of 70% tungsten mining waste mud (TWM),

Development of porous tungsten mud waste-based alkali- activated foams with low thermal conductivity

Imed Beghoura and João Castro Gomes Abstract: Aim of this study was to produce alkali-activated foams with low thermal conductivity. Different precursors’ maximum particles sizes of 150μm, 300μm, and 500μm using a blend of 70% tungsten mining waste mud (TWM),

Monitoring of reinforced concrete for decision support in maintenance management systems

Pedro Romano, João Castro Gomes and Paulo Brito Abstract: The objective of this study is to collect and validate relevant information on the degradation of reinforced concrete exposed to aggressive environments, such as chlorides or sulfates, for later incorporation in

Monitoring of reinforced concrete for decision support in maintenance management systems

Pedro Romano, João Castro Gomes and Paulo Brito Abstract: The objective of this study is to collect and validate relevant information on the degradation of reinforced concrete exposed to aggressive environments, such as chlorides or sulfates, for later incorporation in

Use of iron ore overburden as a precursor for the synthesis of an alkali-activated binder

Marina Filizzola Oliveira, Naim Sedira, Ana Cláudia Guimarães, Fernando Lameiras and João Castro Gomes Abstract: The iron ore beneficiation process produces large quantity of waste. Mining companies are looking for technologies that make it possible to dispose of their waste

Use of iron ore overburden as a precursor for the synthesis of an alkali-activated binder

Marina Filizzola Oliveira, Naim Sedira, Ana Cláudia Guimarães, Fernando Lameiras and João Castro Gomes Abstract: The iron ore beneficiation process produces large quantity of waste. Mining companies are looking for technologies that make it possible to dispose of their waste

Stress-strain relationship in homogeneous and two-layered triaxial test specimens

Gabriel Oliveira and Isabel Falorca Abstract: The stress-strain relationship of a homogeneous specimen, obtained from triaxial compression test, allows to determine stiffness parameters for numerical-method based analyses in common geotechnical software. Stiffness parameters are defined as the ratio of stress

Stress-strain relationship in homogeneous and two-layered triaxial test specimens

Gabriel Oliveira and Isabel Falorca Abstract: The stress-strain relationship of a homogeneous specimen, obtained from triaxial compression test, allows to determine stiffness parameters for numerical-method based analyses in common geotechnical software. Stiffness parameters are defined as the ratio of stress

Softened Variable Angle Truss Model (RA-STM): model description and refinement/optimization proposals

Benedito Filho, Luís Bernardo and Bernardo Horowitz Abstract: This article presents a recent softened truss model with variable angle, namely the refined RA- STM (Rotating-Angle Softened Truss Model), to model the behaviour of structural concrete plates under pure shear. The

Softened Variable Angle Truss Model (RA-STM): model description and refinement/optimization proposals

Benedito Filho, Luís Bernardo and Bernardo Horowitz Abstract: This article presents a recent softened truss model with variable angle, namely the refined RA- STM (Rotating-Angle Softened Truss Model), to model the behaviour of structural concrete plates under pure shear. The

Making cycling’s spaces in hilly cities

Isabel Matias, Bertha Santos and Ana Virtudes Abstract: Traffic congestion and environmental pollution in cities have stimulated the rise of policies to encourage practices of less polluting, and more economic and healthier modes of transportation, such as cycling. Several factors

Making cycling’s spaces in hilly cities

Isabel Matias, Bertha Santos and Ana Virtudes Abstract: Traffic congestion and environmental pollution in cities have stimulated the rise of policies to encourage practices of less polluting, and more economic and healthier modes of transportation, such as cycling. Several factors

The importance of the directives creation for the evaluation of the buildings envelope conditions in condominium regime inserted in a technical management model

Vitorino Neves and João Lanzinha Abstract: Currently, the importance of the condominiums technical management and the organization of their annual budgets (with an enormous preponderance of the funds reserve) is not recognized in the decision- making process regarding the maintenance

The importance of the directives creation for the evaluation of the buildings envelope conditions in condominium regime inserted in a technical management model

Vitorino Neves and João Lanzinha Abstract: Currently, the importance of the condominiums technical management and the organization of their annual budgets (with an enormous preponderance of the funds reserve) is not recognized in the decision- making process regarding the maintenance