Stakeholders of the building and construction sector targeting the implementation of circular practices should undertake solid steps. Examples of solutions within this context may involve the use of hybrid alkaline cements rather than ordinary Portland cement and recycled aggregates from construction and demolition waste in place of natural sand.
This work was designed to evaluate the performance of mortars including in their composition a hybrid cement having fly ash as supplementary cementitious material and high replacement ratios of sand by fine-grained recycled aggregates.
Two types of recycled aggregates were used for producing mortars. Those aggregates were submitted to laboratory tests to ascertain geometrical and physical properties. Mortars were monitored by conducting consistence tests and mechanical strength tests. The findings of the research suggest pondering the feasibility of using these types of mortars in low-demanding or temporary applications.
