Formulation of Lightweight Cement and Glue for Ceramics Based on Demolition Waste

Abstract

Morocco produces approximately 9 million tons per year of building waste (demolition and construction). The territorial network of recovery solutions for this waste is therefore crucial but difficult to optimize because the waste disposal sites are temporary and present a great diversity of size and concentration. Waste collection centers must reconcile the needs of small players, the majority in the end-of-life quarry sector. It is not clear how this enormous amount of material can be obtained, especially as quarries are starting to suffer from excessive resource extraction, which results in a very negative impact on the environment. In this context, our study aims to recover and valorize this waste. In the present work, we present concrete results for the recycling and exploitation of this abundant and permanent deposit. This waste was collected by type, and the elements that constitute it were listed. After crushing and grinding the waste, a representative sample was designed and then characterized by X-ray fluorescence, and the different particle sizes were separated by sieving. Each type of powder obtained was exploited to develop a suitable material: the production from these materials of lightweight cement requires only a new supplement to serve as an effective and efficient binder and the formulation of glues for the installation of ceramics.