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 25 x 25 mm square mesh, in alkali-resistant fibreglass, containing >16% zirconium dioxide, constructed with a leno weave and primed with thermosetting polymer. Certified mesh for the anti-detachment of flooring; easy and quick to apply, to handle and to cut. It combines lightness and thinness with excellent mechanical characteristics in the warp and weft. Resistant to atmospheric agents and aggressive environments, conferring durability to the composite systems in which it is used. Suitable for any substrate and perfectly compatible with both cement-based and lime-based mortars.
ARMAGLASS STRUCTURA 250
280 g/m2 structural reinforcement mesh with 25 x 25 mm square mesh, in alkali-resistant fibreglass, containing >16% zirconium dioxide, constructed with a leno weave and primed with thermosetting polymer. Certified mesh for the anti-detachment of flooring; easy and quick to apply, to handle and to cut. It combines lightness and thinness with excellent mechanical characteristics in the warp and weft. Resistant to atmospheric agents and aggressive environments, conferring durability to the composite systems in which it is used. Suitable for any substrate and perfectly compatible with both cement-based and lime-based mortars.
ARMAGLASS STRUCTURA 115
115 g/m2 structural reinforcement mesh in alkali-resistant fibreglass with 12 x 12 mm square mesh, containing >16% zirconium dioxide, constructed with a leno weave and primed with thermosetting polymer. It is straightforward and quick to apply, simple to handle and easy to cut. Resistant to atmospheric agents and
aggressive environments, conferring durability to the composite systems in which it is used. Suitable for any substrate and perfectly compatible with both cement- and lime-based mortars. Perfect for strengthening reinforced plastering with an anti-overturning function along with the structural consolidation of masonry and vaulted structures.
ARMAGLASS STRUCTURA 115
115 g/m2 structural reinforcement mesh in alkali-resistant fibreglass with 12 x 12 mm square mesh, containing >16% zirconium dioxide, constructed with a leno weave and primed with thermosetting polymer. It is straightforward and quick to apply, simple to handle and easy to cut. Resistant to atmospheric agents and aggressive environments, conferring durability to the composite systems in which it is used. Suitable for any substrate and perfectly compatible with both cement- and lime-based mortars. Perfect for strengthening reinforced plastering with an anti-overturning function along with the structural consolidation of masonry and vaulted structures.
ARMAGLASS CONNECTOR TWIN
Alkali-resistant fibreglass connector with rigid pre-formed central segment and double-threaded ends. Suitable for the structural reinforcement of brickwork, arches and vaults in masonry, tuff and stone, in combination with ARMAGLASS STRUCTURA fibreglass mesh and mortars such as UNISAN, INTOSANA and the REPAR family. It is used as a conduit for connecting the two sides of structural plaster (with the “structural sandwich” technique).
ARMAGLASS CONNECTOR TWIN
Alkali-resistant fibreglass connector with rigid pre-formed central segment and double-threaded ends. Suitable for the structural reinforcement of brickwork, arches and vaults in masonry, tuff and stone, in combination with ARMAGLASS STRUCTURA fibreglass mesh and mortars such as UNISAN, INTOSANA and the REPAR family. It is used as a conduit for connecting the two sides of structural plaster (with the “structural sandwich” technique).
SYNTECH FIX EP
SYNTECH FIX EP is a two-component adhesive with a ETAG 001 certified epoxy resin base, offering an elevated adhesive capacity and resistance to stresses from elevated loads, along with the rapid development of mechanical strength. It is suited to the anchoring and structural fastening of bars and metal elements on concrete surfaces, stone materials, brick, wood and building materials in general. SYNTECH FIX EP can also be utilised as a sealing agent between materials of different natures.
SYNTECH FIX EP
SYNTECH FIX EP is a two-component adhesive with a ETAG 001 certified epoxy resin base, offering an elevated adhesive capacity and resistance to stresses from elevated loads, along with the rapid development of mechanical strength. It is suited to the anchoring and structural fastening of bars and metal elements on concrete surfaces, stone materials, brick, wood and building materials in general. SYNTECH FIX EP can also be utilised as a sealing agent between materials of different natures.
UNISAN
A composite mortar that is fibre-reinforced, consolidating, dehumidifying, grey in colour and utilised for the structural restoration of crumbling old or monumental masonry. It contains no substances that are potentially harmful to masonry and is composed of NHL 3.5 natural hydraulic lime and hydraulic binders free from
soluble salts, along with silicas with pozzolanic activity, selected siliceous-calcareous aggregates, specific shrinkage-reducing agents and resistant alkaline READYMESH fibres that confer high flex-traction whilst increasing the performance of the mortar’s fracture energy. In conjunction with ARMAGLASS STRUCTURA fibreglass mesh, it is ideal for the structural restoration of old walls or crumbling constructions.
UNISAN
A composite mortar that is fibre-reinforced, consolidating, dehumidifying, grey in colour and utilised for the structural restoration of crumbling old or monumental masonry. It contains no substances that are potentially harmful to masonry and is composed of NHL 3.5 natural hydraulic lime and hydraulic binders free from soluble salts, along with silicas with pozzolanic activity, selected siliceous-calcareous aggregates, specific shrinkage-reducing agents and resistant alkaline READYMESH fibres that confer high flex-traction whilst increasing the performance of the mortar’s fracture energy. In conjunction with ARMAGLASS STRUCTURA fibreglass mesh, it is ideal for the structural restoration of old walls or crumbling constructions.
SANASTOF
A premix with a composition of breathable minerals for dehumidifying, with a base of natural hydraulic lime NHL 3.5, microsilicas with pozzolanic activity, selected aggregates, high tenacity microfibres and inert light unit weight thermal-insulating aggregates with a low elastic modulus. It is used for skimming and smoothing, both indoors and outdoors. This product is perfectly compatible with multiple substrates: lime-based plasters, lime cement, cementitious mortars, concretes, porous stone and brick. Its characteristics render it particularly suited to green building works and for restoring historic and monumental constructions. The maximum grain size of the aggregate is 0.9 mm.
SANASTOF
A premix with a composition of breathable minerals for dehumidifying, with a base of natural hydraulic lime NHL 3.5, microsilicas with pozzolanic activity, selected aggregates, high tenacity microfibres and inert light unit weight thermal-insulating aggregates with a low elastic modulus. It is used for skimming and smoothing, both indoors and outdoors. This product is perfectly compatible with multiple substrates: lime-based plasters, lime cement, cementitious mortars, concretes, porous stone and brick. Its characteristics render it particularly suited to green building works and for restoring historic and monumental constructions. The maximum grain size of the aggregate is 0.9 mm.