fibres for concrete Italy

... systems , the presence of high air content in the concrete forming the levelling screed can cause the correct spread of thermal energy to be severely obstructed; on the other hand, the conglomerate incorporates air already in the mixing phase in the form of microbubbles, while the excess mixing water and the segregation mechanisms that occur during transport and casting contribute to including...

...with expanded clay or with mineral wood fibres The factors that mostly affect the efficiency of acoustic barriers are sound-insulation linked to the masses involved and sound-absorption linked to the porosity and shape of the materials. The noise barrier consists of two layers, one of normal reinforced concrete with a density of 2200-2400 kg/mc, having a supporting function, one of light porous...