RESTORATION OF HISTORICAL BUILDINGS

The FRCM and CRM structural consolidation systems represent a highly effective solution for ensuring structural consolidation interventions are fully compatible with the reversibility criteria required for interventions carried out on Italian cultural heritage. A seismic consolidation and improvement intervention carried out as part of a conservative restoration must guarantee compliance with reversibility. In relation to the works to be carried out and the objectives to be achieved with the interventions in question, it is necessary to observe, in addition to all the regulations in force on the national territory, in particular those relating to the CEI – UNI – CNR standards; Furthermore, the project must comply with the principles of the Italian Restoration Charter and Legislative Decree 42/04, in order to guarantee the formal completeness of the procedure in technical-administrative and authorization terms, as well as with seismic regulations with regards to elevated structures, given the Ministerial Decree of 17/01/2018 for new constructions, taking into account the concept of \"seismic improvement\" and the \"Guidelines for the assessment and reduction of seismic risk of cultural heritage aligned with the new Technical Standards for Construction (Ministerial Decree 14 January 2008)\" of the Mibact.

RESTORATION OF HISTORICAL BUILDINGS

  • 1
    High breathability
  • 2
    Compatibility with masonry supports
  • 3
    Compatibility with lime finishing cycles
  • 4
    Low invasiveness

Consolidation of historic walls with a certified CRM system and bio-plaster

demolition of the existing plaster until reaching the masonry surface for the portion to be reinforced and/or reconstruction of any missing parts of the masonry; thorough cleaning of dust, oils and paints from the wall support on which the reinforcement system is to be applied (to be paid separately) washing and wetting the surface until saturation trowel application of a first layer of NHL-based, cement-free structural mortar such as OPUS COMPOSITUM STRUKTURA following the instructions in the technical data sheet for a thickness of approximately 15 mm application of the preformed bidirectional fibreglass mesh type OLY MESH GLASS on the previously laid layer of mortar, ensuring an overlap of 10-15cm; Insertion of the OLY ROD GLASS L connectors into the designated holes and anchoring them using OLY RESIN I chemical anchor completion of the reinforcement by applying by trowel or spraying a further layer of OPUS COMPOSITUM STRUKTURA NHL-based, cement-free structural mortar for a total reinforcement thickness of 30 mm, incorporating the mesh and connectors previously applied

Structural reinforcement of a masonry with the system OLYMPUS STINE

Scarification of existing mortar joints Dry insertion of OLY STEEL CHAIN ​​stainless steel helical bars using a special mandrel into previously prepared pre-holes (approximately 3 connectors/m2) Roughcasting inside the mortar joints with OPUS COMPOSITUM STRUKTURA mortar Insertion of OLY CONNECT helical bar connection devices Application of the OLY ROPE AISI 3 stainless steel strand inside the joints and slots of the connection devices creating a mesh of at least 30x30 cm approximately Covering the system with a layer of OPUS COMPOSITUM STRUKTURA applied in the mortar joints

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