Evaluation of the use of marble waste in hydrated lime cement mortar based

Abstract

The civil construction sector is one of the industrial segments with higher level for environmental degradation, due to the excessive exploitation of natural resources and to the high amount of pollutant gasses generated in the manufacturing of important construction materials. Due to this, the purpose of this paper was to check the possibility of the total or at least partial replacement of hydrated lime by marble waste originated from an industry of ornamental Brazilian rocks in block and wall laying mortars, thus contributing for the sustainability in the construction sector. The verification of such replacement was performed by the characterization of the hydrated lime and marble powder, and the production of mortars by substituting 0%, 25%, 50%, 75%, and 100% of hydrated lime by marble waste. Furthermore, the main properties of the mortars studied were checked, to set if the incorporation of the waste would cause any damage in the parameters analyzed. The results confirmed the possibility of partial replacement of the hydrated lime by marble waste in up to 50%, although the total replacement was not possible. Thus, the study presented attained the goal proposed.