Introduction of Marble Waste Sand in the Composition of Mortar

Abstract

The aim of this research is to study the possibility of the valorization of sand marble waste in mortars as substitute in sand. To achieve this study, sand marble waste is used with weight ratios of 5, 10, 15 and 20% to formulate a mortar with sand marble waste and a control mortar with 0% of sand marble waste. The properties in the fresh state, the mechanical strength, absorption by immersion, and the weight loss as well as the shrinkage and acid attack of each mixture were carried out through the conducted experiments. The different results show that the introduction of recycled sand in the mortars gives good results and it can be used as aggregates.

Drying Shrinkage, Sorptivity and Micro-Structural Characteristics of Cellular Concrete Containing Waste Marble Powder as Cementitious Materials

“…The results are consistent with the sorptivity findings. (Hebhoub, Kherraf, Abdelouahed, & Belachia, 2020). Additionally, the significant volume of capillary pores enhances the water movement freely through the concrete, resulting in accelerated absorption and a higher sorptivity, on the one hand.In addition, the higher proportion of fines (21%) found in the waste marble sand indicates that the compactness of the sand-binder paste is more significant, resulting in increased expansion and the presence of more enclosed pores in the matrix (Ferhat, Goual, Damene, & Quéneudec-t'Kint, 2023), on the other side which increases the sorptivity.…”