The following conclusions can be drawn from the experimental results and their discussion.
The water treatment plant waste is a plastic material (IP = 25.4 %) rich in Al2O3, SiO2, Fe2O3, and organic matter.
The results of X-ray diffraction showed that the waste sample is composed predominantly of kaolinite.
In this work, it was demonstrated that the soil can be replaced with up to 1.25 % water treatment plant waste in the
production of soil-cement bricks. The main limitation for the recycling of water treatment plant waste in soil cement
brick is associated with the increase of water absorption. Despite this, the incorporation of water treatment
plant waste in the production of soil-cement bricks is an excellent alternative for the reuse of materials and solid
waste recycling practices.