• Servizi

    Calcidrata restoration services.

The recovery and preservation of the historical-monumental and artistic heritage are now a true multidisciplinary science. Although the techniques and methodologies of intervention have become increasingly sophisticated, the results of the interventions often have proved to be unsatisfactory, if not in some cases even out of the ordinary.

Especially in the field of restoration of historic and monumental buildings, it is necessary to make case-by-case assessments, with the aim of carrying out conservation work, with reversible and non-perturbative interventions. The only methodologically valid principle is therefore, in our view, just to precede the restoration work from specific cognitive investigations in order to acquire all the information necessary to optimize architectural restoration interventions.

THE KNOWLEDGE PHASE consists of TWO FACES DISTINGUISHED:

  1. Detailed data capture;
  2. Diagnostic and instrumental analysis in order to outline the state conservative and pathological overall.

  • ADVICE

    ADVICE

    The service offered by Calcidrata, wants to be a useful support for designers, individuals and businesses, for the knowledge and diagnosis of structures to be restored. The technical report, prepared by highly qualified staff, will provide accurate on-site and laboratory diagnostic analysis of the causes and phenomena of physico-chemical degradation in progress on the wall supports and on the plaster, suggesting the appropriate intervention methods and materials to be used for architectural recovery.
  • CONDUCTIMETRY

    Quantitative determination of the total salts present by measuring the electrical conductivity total solution. It is useful to evaluate the chemical degradation of natural and artificial stone materials in particular if controls on washing water or extraction efficiency are to be performed.
  • INFRARED  THERMOGRAPHY

    INFRARED THERMOGRAPHY

    The principle of thermography is based on the fact that any object at a certain temperature emits an energy flow. Imagine that a composite structure, like a masonry, exposed to the same thermal conditions (eg solar radiation), the individual elements (stone, mortar, brick, steel, etc.) will lead to a different temperature depending on their thermal properties, and in particular their specific heat and thermal conductivity. Each element will emit a flow of energy depending on the temperature reached and its emissivity. Thermography consists of recording, by means of an infrared detector, the temperatures reached by the various elements present in a structure. By means of an optical system (consisting of several lenses) and electrical (capable of transmitting the intensity of the radiation in an electrical signal received), temperature differences, are recorded, through a thermogram, consisting in the graphic recording of monochrome or colored tones (variants, for example, from white to black) proportional at different temperatures. A particular application of thermography, consists in detecting the surface distribution of moisture: by artificially heating and homogeneously the outer surface of a masonry, the temperature reached in each surface element depends strongly from the local moisture content; the temperature rise in humid areas it will be smaller than in the dry ones, and therefore a thermographic recording allows you to extract a comparative moisture mapping surface. It will then be possible, with a few targeted drawings based on the indications thermograms, determine absolutely and precisely the moisture content by the drying tests of the withdrawals in the laboratory. This is a typical example to demonstrate the complementarity of a non-destructive test (such as thermography) with a destructive test (such as moisture determination in the drying laboratory) of the withdrawals). The advantages of this method are due to the fact that it is absolutely non destructive, fast execution, with the ability to record pictures.
  • MAGNETOMETRY

    MAGNETOMETRY

    This technique allows you to locate hidden ferromagnetic materials in the structure to be investigated. The method is based on the principle of induction magnetic, in practice the magnetometer consists of a probe that is moved on the surface of the structure to be investigated. The probe consists of a coil crossed by an alternating frequency current that generates an alternating magnetic field. Metal objects embedded in the structure to be investigated, but those that are in the magnetic flux field, alter the potential difference at the end of the coil according to the above-described principle. Voltage distortion is reported on a scale or graphically recorded. alteration depends on the thickness of the metal object and that of the covering material; in the case of reinforced concrete structures, for example, the adequately calibrated magnetometer allows to detect the diameter of the armature in steel and the thickness of the cover plate.

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