– Preparation of the surface with adequate soil compaction.
It is recommended that a geotextile blanket be applied prior to the application of the waterproofing system in order to avoid possible puncturing effects caused by crushed materials that may exist at the bottom of the lagoon. This blanket will be dispensable if the bottom is covered with a sand blanket.
– Optimization of slope gradients.
– The bituminous membranes will be adhered to the overlapping bands by torch flame action, recommending minimum overlaps in the order of 0.15 m.
– The membranes will be fixed to the edges of the slopes through trenches , with dimensions of 0.50×0.50 m , which will later be filled and compacted.