Experimental investigation on the carbonation properties of dune sand ceramic waste mortar

Abstract

Purpose This paper aims to analyse the behaviour of dune sand mortars with the addition of ceramic waste. The objective of improving the performance of these modified mortars was evaluated in terms of accelerated carbonation performance. Design/methodology/approach The effect of these recycled materials was studied in an experimental programme through several tests. The carbonation depth was determined using a classical phenolphthalein test. The mass fractions of Ca(OH)2 and CaCO3 were calculated using thermogravimetric analysis, water absorption occurring through capillary action and open porosity, and the mechanical characteristics were measured after subjecting the materials to wetting–drying cycles. Findings The results show that using ceramic waste provides better performance in terms of water absorption by capillary action, open porosity and carbonation penetration. Originality/value This research is a study of the incorporation of ceramic waste up to 10 per cent in dune sand mortar. The choice of using ceramic waste to produce dune sand mortars has benefits from economic, environmental and technical points of view and offers a possibility for improving the durability of mortars.

The Effect of Ceramic Wastes on Physical and Mechanical Properties of Eco-Friendly Flowable Sand Concrete

“…This decrease in workability is maybe due to the high water absorption ( Table 1), angular shape and rough surface texture of -ceramic waste grain compared to natural sand, which had a rounded shape of the grains (Figures 3 and 5). The decrease in workability of concrete, made with CW, was observed also by Abadou et al [2] Guendouz and Boukhekhal [23] and Daniyal et al [24].…”

“…Several studies have been done on the use of ceramic waste as coarse aggregate, powder and filler in the preparation of cement mortar [1][2][3][4][5][6], concrete [7][8][9][10][11][12][13] and self-compacting concretes [14][15][16], high strength concrete [17,18] and ultra-highperformance concrete [19,20]. Many of them, explored that the use of ceramic waste, as a material in concrete composite, leads to a decrease in workability and density of mixture [2,3]. The mechanical properties of mortar and concrete incorporating ceramic waste have also studied and analyzed by several researchers [3,10].…”

Resíduos De Louça Sanitária Como Componentes De Concretos E Argamassas

“…A substituição parcial de agregado natural por RLS aumentou a resistência à compressão e a flexão das argamassas (ABADOU; MITICHE-KETTAB; GHRIEB, 2016;LUCAS et al, 2016) e reduziu sua densidade (ABADOU; KETTAB; GHREIB, 2018;LUCAS et al, 2016). Além disso, o RLS aumentou a porosidade das argamassas (ABADOU; KETTAB; GHREIB, 2018;LUCAS et al, 2016). Entretanto, foi observada maior dificuldade de secagem na argamassa (FARINHA; DE BRITO; VEIGA, 2015).…”