ADDITION OF RECYCLED WASTE OF CONSTRUCTION AND DEMOLITION IN THE PRODUCTION OF SUSTAINABLE MORTARS

Abstract

Construction is one of the earliest known activities and since the beginning of mankind has been executed in a craft, generating as by-products a large amount of mineral rubble. This fact attracted the attention of the builders already at the time of the construction of the cities of the Roman Empire and from that time the first records of the reuse of the mineral residues of the civil construction in the production of new works date. The reuse of construction waste entails the reduction of costs in several stages of the construction process due to the optimization of the use of the raw material, the agility that it gives in the design process or purchase of the components, the increase of the productivity and the reduction of the wastes and Of losses. The objective of this research project was the addition of recycled construction and demolition waste in the production of Portland cement grout. After the aggregation was collected, it was crushed and sieved in order to obtain the ideal granulometry for mixing in the grout after the molding of the test specimens and breaking them at the curing ages of seven and twenty-eight days We achieved a satisfactory resistance compared to conventional grout and in contrast the bonus of reducing environmental impacts by the launch of these products in nature. All of these tests were carried out at the Soil Analysis Laboratory at Cajazeiras Campus-IFPB. The procedures will follow ABNT standards: physical indexes, grain size, consistency limits and compaction. Therefore, the utilization of the resources available to the reality of each region becomes relevant, so that abundant and low-cost products can help in the development of technically feasible and ecologically correct materials.