APPLICATION PROCEDURES
- Remove the existing plaster between the masonry and the beam (or the floor) for a width of 50 cm (25 + 25 cm).
- Dust the carving surfaces and wash them with low pressure water.
- If through connections are foreseen, proceed with the drilling of the masonry for the entire thickness in the recessed section between the infill and the beam, according to a center distance of the holes not exceeding 50 cm and the temporary occlusion, with a special removable marker, to allow its identification and prevent the mortar to be subsequently applied from penetrating it.
- On a substrate, saturated with water with a dry surface, application by trowel or spray of a first uniform layer of UNISAN (1) composite mortar, fiber-reinforced with double type of READYMESH fibers (glass and polypropylene), dehumidifying, very high breathability, class R (restoration according to UNI EN 998/1), based on hydraulic binders with a low content of soluble salts, with mechanical resistance in class R2 (according to UNI EN 1504/3), reaction to fire class A1 (EN 13501-1), permeability to water vapor 11 μ (UNI EN 1015-19), compressive strength after 28 days> 20 N/mm² (UNI EN 12190), flexural strength after 28 days> 5MPa (UNI EN 12190) elastic modulus 11 GPa (EN 13412), maximum particle size of the aggregate 1.5 mm.
- On the still “fresh” mortar layer, place the ARMAGLASS STRUCTURA bi-directional glass fiber reinforcement mesh (2), exerting light pressure with a flat metal trowel so that it adheres perfectly to the applied mortar
(2) Use the ARMAGLASS STRUCTURA 250 mesh, or alternatively ARMAGLASS STRUCTURA 115 according to the design indications (usually ARMAGLASS STRUCTURA 250 is used in the perimeter cladding and ARMAGLASS STRUCTURA 115 in the internal partition walls).
- Wet application of a second layer of UNISAN mortar (1) to completely cover the net; thickness of the mortar from 1 to 2 cm approximately. Consumption of 15 kg/m²/cm of thickness.
- If connection systems are provided, leave a 20 × 20 cm net surface visible, centered with respect to each of the holes previously made, and insert the special connection systems with rigid central core and staple terminations in glass fiber ARMAGLASS CONNECTOR TWIN. This special connector is available in different lengths of the rigid central part (20-30-40-50-60 cm) to be chosen according to the thickness of the masonry; the loose part in the bow, common to all available lengths, is 20 cm on each side.
- Fill the holes and grout the connectors with GROUT CABLE pourable grout or, alternatively, with SYNTECH FIX EP epoxy resin for anchors.
- Spread the loose fibers of the terminal part of the connector radially, connect them by intertwining them with the meshes of the net.
- Incorporate everything with UNISAN fiber-reinforced composite mortar (1).
- Two-coat smooting performed with SANASTOF premixed mineral composition, based on natural hydraulic lime NHL 3.5, microsilica with pozzolanic activity, selected aggregates, high tenacity microfibers, light heat-insulating aggregates with low modulus of elasticity; consumption of about 3 kg/m² for two applied coats and a total thickness of 2-3 mm.
- Finish the surgery with a highly breathable colored finish using product from the SANAXIL or PROTECH SIL line
* as an alternative to UNISAN mortar, the super-adhesive RASOCOAT mortar can be used, based on hydraulic binders, water-dispersible resins, silico/calcareous aggregates and specific agents. Main technical characteristics of RASOCOAT mortar: Adhesion bond (UNI EN 1015-12): > 1.5 N/mm²_ Density: 1.90 kg/l _ Compressive strength after 28 days (UNI EN 1015-11): > 20 N/mm² _ Flexural strength after 28 days (UNI EN 1015-11): > 6 MPa
Application stratigraphy
- UNISAN (1° layer)
- ARMAGLASS STRUCTURA 250/115
- UNISAN (2° layer)
- ARMAGLASS CONNECTOR TWIN
- UNISAN (3° layer)
- SANASTOF
SYSTEM COMPONENTS
Armaglass Structura 250
280 g/m² structural reinforcement mesh with a 25 x 25 mm square mesh, made of alkali-resistant glass fibre containing > 16% zirconium dioxide, woven using the leno weave technique and coated with a thermosetting polymer. Mesh certified for preventing the detachment of infill panels from floor slabs; easy and quick to apply, manageable and simple
to cut. It combines low weight and reduced thickness with excellent mechanical properties in both the warp and weft directions. Resistant to atmospheric agents and aggressive environments, it provides durability to the composite systems in which it is used. Suitable for any substrate and fully compatible with both cement-based and lime-based mortars.
Armaglass Structura 250
280 g/m² structural reinforcement mesh with a 25 x 25 mm square mesh, made of alkali-resistant glass fibre containing > 16% zirconium dioxide, woven using the leno weave technique and coated with a thermosetting polymer. Mesh certified for preventing the detachment of infill panels from floor slabs; easy and quick to apply, manageable and simple to cut. It combines low weight and reduced thickness with excellent mechanical properties in both the warp and weft directions. Resistant to atmospheric agents and aggressive environments, it provides durability to the composite systems in which it is used. Suitable for any substrate and fully compatible with both cement-based and lime-based mortars.
Armaglass Structura 115
115 g/m² alkali-resistant fiberglass structural reinforcement mesh, with a 12 x 12 mm square mesh, containing > 16% zirconium dioxide, leno-woven and coated with a thermosetting polymer; easy and quick to apply, easy to handle and simple to cut. Resistant to weathering and aggressive environments, it provides durability to the composite systems in which it is used. Suitable for any substrate and fully compatible with both cement-based and lime-based mortars. Ideal for reinforcing reinforced plaster with an anti-overturning function and for the structural consolidation of masonry and vaulted structures.
Armaglass Structura 115
115 g/m² alkali-resistant fiberglass structural reinforcement mesh, with a 12 x 12 mm square mesh, containing > 16% zirconium dioxide, leno-woven and coated with a thermosetting polymer; easy and quick to apply, easy to handle and simple to cut. Resistant to weathering and aggressive environments, it provides durability to the composite systems in which it is used. Suitable for any substrate and fully compatible with both cement-based and lime-based mortars. Ideal for reinforcing reinforced plaster with an anti-overturning function and for the structural consolidation of masonry and vaulted structures.
Armaglass Connector Twin
Alkali-resistant glass-fibre connector with a rigid preformed central section and double loose, fan-out ends. Suitable for the structural strengthening of brickwork, arches and vaults made of brick, tuff and stone, in combination with ARMAGLASS STRUCTURA glass-fibre meshes and Unisan, Intosana and REPAR family mortars. Used as a through-connector to connect the two sides of a structural plaster render (the “structural sandwich” technique).
Armaglass Connector Twin
Alkali-resistant glass-fibre connector with a rigid preformed central section and double loose, fan-out ends. Suitable for the structural strengthening of brickwork, arches and vaults made of brick, tuff and stone, in combination with ARMAGLASS STRUCTURA glass-fibre meshes and Unisan, Intosana and REPAR family mortars. Used as a through-connector to connect the two sides of a structural plaster render (the “structural sandwich” technique).
Syntech E-Plus
Syntech E-Plus is a two-component adhesive based on epoxy resins, offering exceptionally high adhesion and resistance to stresses resulting from heavy loads, together with rapid development of mechanical strength. It is suitable for the structural anchoring and fastening of bars and metal elements to concrete, stone, brickwork, timber and construction materials in general. Syntech E-Plus can also be used as a bonding agent between dissimilar materials. To be extruded using a dedicated 470 cc gun (see the technical data sheet: GUNS Extruders for Cartridges). Syntech E-Plus is ETAG-certified for C2 seismic loads.
Syntech E-Plus
Syntech E-Plus is a two-component adhesive based on epoxy resins, offering exceptionally high adhesion and resistance to stresses resulting from heavy loads, together with rapid development of mechanical strength. It is suitable for the structural anchoring and fastening of bars and metal elements to concrete, stone, brickwork, timber and construction materials in general. Syntech E-Plus can also be used as a bonding agent between dissimilar materials. To be extruded using a dedicated 470 cc gun (see the technical data sheet: GUNS Extruders for Cartridges). Syntech E-Plus is ETAG-certified for C2 seismic loads.
Unisan
Composite, fiber-reinforced, consolidating mortar with low liquid water absorption, used for the structural rehabilitation of deteriorated historic or monumental masonry. It contains no substances potentially harmful to masonry and is composed of hydraulic binders free from soluble salts, pozzolanic silica, selected siliceous-calcareous aggregates, specific shrinkage-reducing agents, and alkali-resistant READYMESH fibers, which provide high flexural tensile strength and increase the mortar’s fracture energy. Ideal for the structural rehabilitation of historic brick, stone or mixed masonry, used in combination with ARMAGLASS STRUCTURA glass-fiber meshes.
Unisan
Composite, fiber-reinforced, consolidating mortar with low liquid water absorption, used for the structural rehabilitation of deteriorated historic or monumental masonry. It contains no substances potentially harmful to masonry and is composed of hydraulic binders free from soluble salts, pozzolanic silica, selected siliceous-calcareous aggregates, specific shrinkage-reducing agents, and alkali-resistant READYMESH fibers, which provide high flexural tensile strength and increase the mortar’s fracture energy. Ideal for the structural rehabilitation of historic brick, stone or mixed masonry, used in combination with ARMAGLASS STRUCTURA glass-fiber meshes.
Sanastof
Premixed mineral-based product formulated with NHL 3.5 natural hydraulic lime, pozzolanic microsilica, selected aggregates, high-toughness microfibres, and lightweight thermally insulating aggregates with a low elastic modulus. It is used for skim coating and levelling, both indoors and outdoors. It is perfectly compatible with a wide range of substrates: lime-based, lime-cement and cement renders, concrete, porous stone and masonry units. Its characteristics make it particularly suitable for green building applications and the restoration of historic and monumental buildings. The maximum aggregate size is 0.9 mm.
Sanastof
Premixed mineral-based product formulated with NHL 3.5 natural hydraulic lime, pozzolanic microsilica, selected aggregates, high-toughness microfibres, and lightweight thermally insulating aggregates with a low elastic modulus. It is used for skim coating and levelling, both indoors and outdoors. It is perfectly compatible with a wide range of substrates: lime-based, lime-cement and cement renders, concrete, porous stone and masonry units. Its characteristics make it particularly suitable for green building applications and the restoration of historic and monumental buildings. The maximum aggregate size is 0.9 mm.