Abstract: The invention refers to a step adjustable monoaxial vibrator intended to be used on the vibrating rollers or similar machines.In order to adjust the peak value of the excitation at various levels, it has three rotary balls (rollers) rolling along the pendular frame rolling path while being driven by a dynamic balanced fork as a rotor.Across the rotor axle there is an obturating rod in order to locate the central ball either in the same compartment or in the opposite one versus the remaining two balls.This allows the steady frequency excitation to be set up either at the maximum peak value or at a value three times lower. By removing the central ball, a medium size excitation is obtained.

Abstract: In a method and apparatus for drying damp basements by electroosmosis, the inner surface of the basement walls are coated with a plaster or multi-layered coating of an electrically conductive non-metallic composition, which forms an electrode to which positive voltage is fed by a number of grounds arranged around the walls of the basement and embedded in the earth. These second electrodes are fed a negative voltage from the D.C. power supply, while their number is determined by a particular current density measured at the interface of the walls and the positive electrode and the building-directed face of the negative electrodes.

Abstract: A mortar for interior and exterior plastering having anticondensate, antimoisture diffusive, heat insulating and biocidal properties is disclosed.