MASSETTO DRENANTE is a biocompatible draining screed, pre-packaged powder for interior and exterior use, according to standard UNI EN 13813. MASSETTO DRENANTE is free from cement or compounds belonging to the clinker group. It is made up of a mixture of pure mineral sands, screened with 1.5 to 3.5 mm continuous grain size arc without fine particles. The only present binder is the ST ASTIER Pure Natural Hydraulic Lime NHL 5 according to standard UNI EN 459-1. The lime NHL 5, white, is produced by baking siliceous limestones at temperatures below 1250°C and reduced in powder by only the breakdown of calcium oxide, without the addition of pozzolanic materials or hydraulic binders of any kind.
MASSETTO DRENANTE is a draining screed, pre-packaged powder, biocompatible, free of salts, chemical and volatile organic compounds (VOCs). These features, combined with the total mineral nature of the components, guarantee the purity, non-toxicity, non-harmfulness and the total recyclability of the product in full respect for man and the environment. The aggregates that make up the MASSETTO DRENANTE are selected to exclude the fine parts ensuring a high content of gaps in the compacted conglomerate. This composition gives the material total permeability to water by eliminating capillary rising phenomena. The use of MASSETTO DRENANTE makes the subbases eco-friendly, giving a remarkable ability to drain the meteoric water and the problems associated with stagnation associated with it.