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Imed Beghoura is a doctoral student at the University of Beira Interior (UBI), Portugal. Imed obtained a Civil Engineering master’s degree in 2015 in construction materials with the thesis ‘’Contribution to the formulation of High-Performance Concrete (HPC) using local materials’’ at the University Of Bordj Bou Arréridj (Algeria). Since April 2016, Imed has conducted research on the development of lightweight alkali-activated materials for ready mixes, fire-resistant, and precast applications.
This study focuses on the development of an alkali-activated lightweight foamed material (AA-LFM) with enhanced density. Several mixes of tungsten waste mud (TWM), grounded waste glass (WG), and metakaolin (MK) were produced. Al powder as a foaming agent was added, varying from 0.009 w.% to 0.05 w.% of precursor weight. Expanded granulated cork (EGC) particles were incorporated (10% to 40% of the total volume of precursors). The physical and mechanical properties of the foamed materials obtained, the effects of the amount of the foaming agent and the percentage of cork particles added varying from 10 vol.% to 40% are presented and discussed. Highly porous structures were obtained, Pore size and cork particles distribution are critical parameters in determining the density and strength of the foams. The compressive strength results with different densities of AA-LFM obtained by modifying the foaming agent and cork particles are also presented and discussed. Mechanical properties of the cured structure are adequate for lightweight prefabricated building elements and components.
Imed Beghoura; Joao Castro-Gomes. Enhancing Density-Based Mining Waste Alkali-Activated Foamed Materials Incorporating Expanded Cork. CivilEng 2021, 2, 523 -540.
AMA StyleImed Beghoura, Joao Castro-Gomes. Enhancing Density-Based Mining Waste Alkali-Activated Foamed Materials Incorporating Expanded Cork. CivilEng. 2021; 2 (2):523-540.
Chicago/Turabian StyleImed Beghoura; Joao Castro-Gomes. 2021. "Enhancing Density-Based Mining Waste Alkali-Activated Foamed Materials Incorporating Expanded Cork." CivilEng 2, no. 2: 523-540.
Imed Beghoura; João Castro-Gomes. Design of alkali-activated aluminium powder foamed materials for precursors with different particle sizes. Construction and Building Materials 2019, 224, 682 -690.
AMA StyleImed Beghoura, João Castro-Gomes. Design of alkali-activated aluminium powder foamed materials for precursors with different particle sizes. Construction and Building Materials. 2019; 224 ():682-690.
Chicago/Turabian StyleImed Beghoura; João Castro-Gomes. 2019. "Design of alkali-activated aluminium powder foamed materials for precursors with different particle sizes." Construction and Building Materials 224, no. : 682-690.
Several mixes of alkali activated foams from tungsten mud waste (MW), grounded glass (GG) and metakaolin (MK) were developed incorporating expanded granulated cork (EGC). This study presents preliminary results of the expansion process obtained with the addition of aluminium (AL) powder as a foaming agent. 0.3 wt.%, 0.4 wt.% to 0.5wt.% of AL powder were added to the alkali activated matrix. The physical and mechanical properties of the obtained foams, the effects of the type and amount of the foaming agent added are presented and discussed. Highly porous structures were obtained, with overall expansion up to 68.2% when the AL powder was added. The size and distribution of pores are shown. The compressive strength of foams in the case of highly porous structures achieved of 1.2 MPa for the samples containing 0.5 wt.% of AL powder. Mechanical and thermal properties of the cured structure are good and can therefore be used for applications in acoustic panels and lightweight prefabricated components for thermal insulation purposes.
Imed Beghoura; João Castro-Gomes; Haroon Ihsan; John Pickstone; Nuno Estrada. Expansion volume of alkali activated foamed cork composites from tungsten mining mud waste with aluminium. MATEC Web of Conferences 2019, 274, 03002 .
AMA StyleImed Beghoura, João Castro-Gomes, Haroon Ihsan, John Pickstone, Nuno Estrada. Expansion volume of alkali activated foamed cork composites from tungsten mining mud waste with aluminium. MATEC Web of Conferences. 2019; 274 ():03002.
Chicago/Turabian StyleImed Beghoura; João Castro-Gomes; Haroon Ihsan; John Pickstone; Nuno Estrada. 2019. "Expansion volume of alkali activated foamed cork composites from tungsten mining mud waste with aluminium." MATEC Web of Conferences 274, no. : 03002.