News TECHNOLOGY High Fracture Energy Technologies INNOVATION ECC Engineered Cementitious Composites Rational Systems for Repair, Structural Reinforcement and Seismic Retrofitting of Masonries Fire resistance Anti-corrosion Innovative systems with very high performance January 2013 REINFORCED RENDERING WITH HIGH FRACTURE ENERGY AND DEFORMATION CAPACITY FOR STRUCTURAL STRENGTHENING AND SEISMIC RETROFITTING OF BEARING MASONRIES, PLUGGING, PARTITIONS DUCTILITY ENERGY DISSIPATION RIGIDITY DIAGONAL COMPRESSION TEST TANGENTIAL TENSILE SHEAR LIMIT DEFORMATION
REINFORCED RENDERING SYSTEMS WITH HIGH DUCTILITY FOR THE STRUCTURAL REINFORCEMENT AND SEISMIC ADJUSTMENT OF MASONRY WALLS The technique of consolidation using reinforced renders is to achieve, in adherence to the wall to be strengthened, a layer of mortar, reinforced with mesh, fixed to the wall through bulkhead connectors. The technique allows to improve the characteristics of resistance of the wall, thanks to the increase in section resistance made from the morar layer and the effect of confinement excercised on the degraded masonry, and, at the same time, to increase the ductility. This technique may be suitable to those walls in a particular advanced state of degradation and not able to withstand excessive handling (in the presence of complex and extended cracking patterns, other techniques, such as injections or the construction of walls, may in fact be difficult to apply). The technique is also applicable to reinforce a limited section of a damaged wall, or vertical intersections of walls which are not sufficiently connected. The consolidation with reinforced renders is a simple method and rather rapid, suitable also for seriously poor masonry walls, when adequately and extensively treated, requiring appropriate dimentioning and structural load distribution. The application of the reinforced render does not change the state of stress of the structure during the execution, but can change the stiffness of the walls and thus their seismic response. The application of system ensures maximum reliability of this technique through the following fundamental features : the intrinsic Ductility and Energy of Deformation of used Render, the Adhesive Capacity of the mortar to the wall, some peculiarities in the Mechanical Characteristics of Mortar, the choice Reinforcement net and transversal Connectors, Correct Application. The Structural reinforcement system ensures the transfer and stress distribution from the wall to the reinforced render slab with the highest ductility and fracture energy of the SYSTEM, particularly in the case of Seismic Stress.
In the System all the materials which compose the the Design of Structural Reinforcement play a fundamental role and synergy in the transfer of the Forces in the Masonry Reinforcement system. Systems allow the durable functional recovery in many different grades of degradation and different purposes of structural reinforcement, including seismic adaptation of constructions. Fundamental role is played by the quality of the binders and reinforcement used, that must allow: - Increase of ductility without stiffness or shear differences in the structure. Dissipation of the energy without collapsing in case of seismic event.
Two experimental examples of the System HFE-tec muratura by measuring the diagonal compressive strength on wall with dimension 100x100x40 cm thickness render 3 cm Determination and measuring the diagonal compression strength on masonry walls rendered with a fibre-reinforced mortar with very high Deformation Energy, reinforced with a steel or glass fibre net : Systems HFE-tec Muratura Reference vintage mortar, not reinforced BS 38/39-2,5 MuCis sra 3 cm, reinforced with steel net Tecnofib-ST /elt-4/50 BS 38/39-2,5 MuCis sra 3 cm, reinforced with glass fibre net Tecnofib Glass Net 510 The crack of unreinforced masonry: the wall "bursts" Reference vintage mortar, not reinforced BS 38/39-2,5 MuCis sra 3 cm, reinforced with steel net Tecnofib-ST /elt-4/50 BS 38/39-2,5 MuCis sra 3 cm, reinforced with glass fibre net Tecnofib Glass Net 510 The crack of reinforced masonry HFE-tec : not damaged
APPLICATIVE TYPOLOGY SYSTEMS of reinforced renders with the technology of the structural sandwich HIGH DUCTILITY 1 Realisation of drillholes,inserting steelconnectors Tecnofib FIOCCO STEEL 162 Or in glassfibre Tecnofib FIOCCO GLASS 73 And fixation with in alternative with TECNOANCORVINIL 380 or Tecnoepo 701 2 Application of first layer of high Deformation Energy Mortar BS 38/39-2,5 MuCis sra or BS 37 FPL-LIGHT 3 installing steelnet Tecnofib- ST/elt - 4/50 or glass fibre net Tecnofib GLASS net 340 and fix to the connectors 4 Application of second layer of mortar with High Deformation Energy BS 38/39-2,5 MuCis sra or BS 37 FPL-LIGHT SYSTEMS with external cover on vaulted structure Structural cooperating cover in fibre reinforced bi component mortar with High CAPPA deformation COLLABORANTE energy IN MALTA FIBRORINFORZATA BS 38/39-2,5 MuCis BICOMPONENTE sra No shrinkage, anti-corrosion ANCORAGGIO MEDIANTE PRODOTTO A BASE CEMENTIZIA O EPOSSIDICA Anchoring with cement based material BS 91 ANCORA or epoxy based product TECNOEPO 400 HIGH DUCTILITY SYSTEMS Anti-tilt system for walls and partitions (in this case by reducing the thickness to no more than 10 20 mm) HIGH DUCTILITY 1) Chiusura con malta bicomponente fibrorinforzata Mucis BS38/39-2.5 2) Realizzazione del foro e inserimento del connettore FIOCCO GLASS 73 facendo sporgere i filamenti in fibra di vetro 3) Ricostruzione primo strato intonaco con ns. malta bicomponente fibrorinforzata Mucis BS38/39-2.5 4) fissaggio di rete in fibra di vetro Tecnofib Glass net G8 o, in alternativa, di rete metallica TecnoFib ST- ELT 5) sfiocchettare le fibre sporgenti e impregnarle con adesivo epossidico bicomponente 6) ricostruzione secondo strato intonaco malta bicomponente fibrorinforzata Mucis BS38/39-2.5
PRODUCT DESCRIPTION PARTICULAR CHARACTERISTICS USE MuCis mia 200 Multiple function migrating and contact corrosion inhibitor for the impregnation of existing concrete structures, with anodic protection. EN 1504-9 principle 11 [CA] -11.3 Anodic and cathodic protection, migrates to the structure, reaches and protects the steel inside. Recommended for all concrete structures reinforced or pre-stressed particularly when subject to extremely aggressive conditions. MuCis PROTEZIONE FERRO bi-component BS 38/39-2,5 MuCis sra (bicomponent) HFE-tec Premixed thixotropic slurry with passivating activity for corrosion protection of reinforcing bars. EN 1504-7 type ZA.1 approved Certificate N. 0988 CPD 0645 principio 11 [CA] - 11.1, 11.2 (according Standard EN 1504-9) Thixotropic fibre-reinforced structural mortar, anti-corrosion, superadhesive, with shrinkage compensation sra. approved Certificate N. 1305-CPD-0808; EN 1504-3 class R3 structural On concrete and masonry For restoration, including structural on existing reinforced concrete, for repairs, leveling, regularization, smoothing of the substrate, fixings, etc. and structural reinforcement of masonry. Applied with a trowel or spray. Compressive strength : 25 MPa Modulus of elasticity : 8000 MPa Adhesion to concrete : > 2,5 MPa Compressive strength : 40 MPa Flexural strength : 10 MPa Modulus of elasticity : 18000 MPa Adhesion to concrete : 2,3 MPa High Deformation Energy Anti-corrosion treatment for the steel reinforcement after preparation, and before the application of the repair mortar. For structural anti-corrosion repairs on reinforced concrete. Reinforced renders, deep sealing of joints and cracks, repairs, leveling, regularization, smoothing of the support, fixation. For structural reinforcement of masonry. Applied with a trowel or spray. MORTARS FOR REPAIR AND REINFORCED RENDERING ON MASONRY BS 37 FPL-LIGHT HFE-tec HFE-tec THIXO 200 HFE-tec PAV 360 HFE-tec ECC 1200 THIXO HFE-tec SB 80 Pozzolanic fiber-reinforced lightweight mortar, high-capacity of deformation and fracture energy. Suitable for systems HFE-tec masonry. RESA : 1,5 Kg/m 2 /mm approved 1305-CPD-0808 ; EN 1504-3 Class R2 approved EN 998-1/OC mono-layer mortar for external rendering. Bi-component fiber-reinforced mortar with FIB-energy MC polymer fibers with high elastic modulus, with exceptional fracture energy. Its deformation capacity is more than 500 times higher than the best structural mortars. approved Certificate n. 1305 - CPD 0808 EN 1504-3 Class R3 Formulated two-component fiber-reinforced cement product specially studied for high mechanical strength with exceptional values of fracture energy and DUCTILITY '. HFE-tec PAV 360 is used for horizontal applications or by casting. approved Certificate n. 1305 - CPD - 0808 EN 1504-3 Class R4 High Fracture Energy Technologies ECC Engineered Cementitious Composites Special fibre-reinforced polymer cement composition containing FIBenergy with high elasticity modulus. Its deformation capacity is about 500 times higher compared to standard cement compositions. Once mixed with water, it is highly thixotropic. Multi-functional spraymortar for the protection against fire of structures in concrete. Compressive strength : > 20 MPa Flexural strength : > 8 MPa Modulus of elasticity : 12000 MPa Adhesion to stone and concretes: > 1,5 MPa Fracture energy : 3500 N/m Thermal insulation λ= 0,73 W/mK Very High Deformation Energy Compressive strength : 33 MPa Flexural strength : 8,2 MPa Modulus of elasticity : 10000 MPa Adhesion to concrete: > 1,5 MPa Fracture energy : 20000 N/m Very High Deformation Energy Compressive strength : 69 MPa Flexural strength : 19 MPa Modulus of elasticity : 26000 MPa Adhesion to concrete: 3 MPa Fracture energy : 37500 N/m Very High Deformation Energy Compressive strength : 25-30MPa Flexural strength (tensile modulus): 19-22 MPa Modulus of elasticity : 9,5 GPa Static modulus of elasticity : 9,5 GPa Fracture energy : 200000 N/m Very High Deformation Energy Compressive strength : 42 MPa Flexural strength : 9,5 MPa Modulus of elasticity : 18400 MPa Adhesion to concrete: > 2,0 MPa Fracture energy : 1180 N/m Thermal conductivity λ= 1,1 W/mK High Deformation Energy Systems Sistemi HFE-tec muratura - (High Fracture Energy Technologies) - high-energy fracture of masonry new or old by carrying reinforcements with reinforced renders, meshes and connectors in metal or glassfibre. In the case of seismic events, the energy dissipation capacity and increase of the ductility without variations of shear strength of the structure. Restoration of structures in reinforced concrete or masonry in harsh environmental conditions, particularly of structures subjected to dynamic loads, seismic stress or shock; wherever it is necessary to absorb high energy without fracture or collaps For repairs by horizontal application or in formwork, subject to high static and dynamic loads and in seismic areas: industrial floor areas, taxi areas, rail bases, repairs of concrete in highly stressed environmental conditions. For applications that need to absorb large deformations without failure: Structural elements in seismic areas (eg. Pillars or other structural elements, seismic resistant also in combination with steel reinforcement) Joints (ductile slabs of bridges and viaducts, ductile walls) Repair of structures to absorb heavy loads without failure or fracture Items suitable for the measurement of static or dynamic loads through the monitoring of deformations continuous coatings without joints For the fire protection of deteriorated concrete structures or as a protective restoration layer over scarified deteriorated concrete. The product is applied in a single layer with a thickness from 3 to 6 cm without the need for steel reinforcement HFE-tec SB 80 protects the existing structure from aggressive substances such as gas and de-icing salts as well as thermal stress resulting from fire. The formation of cracks that is typical of cement-based coatings is prevented through the use of a sophisticated cocktail of high performance polymeric fibers. The same fibers guarantee high resistance to the fire of HFE-tec SB 80. BS 5-F Structural fibre-reinforced mortar, thixotropic, with compensated shrinkage. RESA: 1,85 Kg./m 2 /mm thickness approved 1305-CPD-0808 ; EN 1504-3 Class R3 Compression strength : 40 MPa Flexural strength : 9,5 MPa Dynamic modulus of elasticity : 26500 MPa Static modulus of elasticity : 21500 MPa Structural repairs in class R3 of concrete and masonry. Reinforced renders. Applied with a trowel or spray LIME INJECTION Colloidal lime injection for consolidation and re-strengthening of masonry structures. Consumption : 1160 Kg/m 3 Compression strength : 10-12 MPa Flexural strength : 3,5 MPa Modulus of elasticity : 5000-7500 MPa Adhesion to brick :> 1Mpa Consolidating injection in walls of brick, stone or mixed with high penetration and low heat of hydration. Great adhesion to stone surfaces, bricks and the reinforcing bars / connectors in steel or glass LIME INJECTION 9000 Colloidal lime injection for consolidation and re-strengthening of masonry structures. Consumption : 1400 Kg/m 3 Compression strength : 13 MPa Flexural strength : 3,0 MPa Modulus of elasticity : 9000 MPa Adhesion to brick :> 1Mpa Consolidating injection in walls of brick, stone or mixed with high penetration and low heat of hydration. Great adhesion to stone surfaces, bricks and the reinforcing bars / connectors in steel or glass BS 91 ANCORA mono and bi-component Structural pourable mortar, high fluidity, anti-corrosion, for anchoring, reinforcement casting, consolidation. Consumption : 1,9 Kg./m 2 /mm thickness approved 1305-CPD-0808 ; EN 1504-3 Class R4 approved 1305-CPD-0808 ; EN 1504-6 Compression strength : 69 MPa Flexural strength : 9 MPa Modulus of elasticity : 33000 MPa Adhesion to concrete : 2,5 MPa Sliding : displacement < di 0,33 mm with load of 75 kn Anchoring of reinforcement, backfilling, inducement of seismic isolators. Rehabilitation of deteriorated structures by casting in moulds. Underpinning. Consolidation of foundations and soil
Tecnofib ST-ELT 0,8/24 Stainless steel mesh AISI 304 for the reinforcement of structures Rolls of 50 m width of 100 cm Tensile strength : 12000 N/m Diameter wire : 0,80 mm Mesh 24x24 mm Weight : 0,280 kg/m 2 Type steel : AISI 304 The system can be used for the reinforcement of structures of various types: masonry, infill; recovery of arches, vaults and masonry, structural elements in RC. In particular, for the assistance in a seismic zone, the system with network Tecnofib ST-ELT 0.8/24 incorporated in fiber-reinforced cement formulation Refor-tec GF5 ST-HS THIXO allows you to: increase the bending strength of structural elements; increase shear resistance of beams and pillars; increase the tensile strength of the structural elements in correspondence of the structural nodes. STEEL, GLASS FIBRE NET Tecnofib ST-ELT 2/24 GLASS NET 510 GLASS NET 340 GLASS NET G8 GLASS NET 10 GLASS NET 73 Zinc wire mesh for the reinforcement of structures Glass fibre mesh, with alkali-resistant treatment for the reinforcement in seismic areas. Guidelines CNR - DT 200/2004. Glass fibre mesh, with alkali-resistant treatment for the reinforcement in seismic areas. Guidelines CNR - DT 200/2004. Bi-directional glass fibre net, balanced type. CNR - DT 200/2004. Guidelines Glass fibre net particularly indicated for the reinforcement of mortars, and backfilling, even in seismic areas. Guidelines CNR - DT 200/2004. Bi-directional balanced, glass fibre net. Tensile elasticity modulus 73 GPa. Low rigidity. Guideline CNR - DT 200/2004. Rolls of 25 m length, 100 cm width Diameter wire: 2 mm Mesh 24x24 mm Max. global load : 450-550 MPa (load referred to wire) Elongation till break : 3,5 % Tensile load till break : Warp >6,600 N/5cm Weft > 6,200 N/5cm Medium thickness of the mesh : 0,95 mm weight : 510 g/m 2 Dimension grid 10x8 mm Width of the grid 28 x 28 mm Weight 340 g/m 2 Tensile load till break : Warp >3.500 N/5cm Weft > 4.600 N/5cm Elongation 3,5% Tensile strength : 60 kn/m Tensile elasticity modulus : 73 GPa Weight : 220 g/m 2 Grid : 8,3 x 9,5 mm Width of grid : 10 x 10 mm Weight 140 g/m 2 Tensile strength > 1.900 N/ 5 cm warp Elongation 4,5% Tensile strength : 2600 Mpa Tensile modulus : 73 GPa Weight : 180 g/m 2 Calculation thickness: 0,141 mm The system can be used for the reinforcement of structures of various types: masonry, infill; recovery of arches, vaults and masonry, structural elements in RC. In particular, for the assistance in a seismic zone, the system with network Tecnofib ST-ELT 0.8/24 incorporated in fiber-reinforced cement formulation Refor-tec GF5 ST-HS THIXO allows you to: increase the bending strength of structural elements; increase shear resistance of beams and pillars; increase the tensile strength of the structural elements in correspondence of the structural nodes. Reinforcement of walls, curtain walls, arches, vaults and concrete structures Reinforcement of walls, curtain walls, arches, vaults and concrete structures Reinforcement of walls, curtain walls, arches, vaults and concrete structures Reinforcement of walls, curtain walls, arches, vaults and concrete structures Reinforcement of walls, curtain walls, arches, vaults and concrete structures STEEL, GLASS FIBRE, CARBON CONNECTORS Tecnofib Fiocco C240 Tecnofib Fiocco Glass 73 Tecnofib Fiocco Steel 162 Connector made with unidirectional carbon fiber filaments of high tenacity enclosed in a net. Connector made with unidirectional alkali resistan glass fiber filaments enclosed in a net. Connector made with filaments uni-directional carbon steel with very high tensile strength and elastic modulus. Tensile strength : 4800 Mpa Tensile modulus of elasticity : 240 GPa Deformation till break : 2% Diam. available for these connectors :6,8,10 or12 mm Tensile strength : 2000 Mpa Tensile modulus of elasticity : 73 GPa Deformation till break : 3,5% Diam. available for these connectors :6,8,10 or12 mm Tensile strength : 2800 Mpa Tensile modulus of elasticity : 162 GPa Deformation till break : 1,78% Diam. available for these connectors :6,8,10 o12 mm Additional bars in vaults, masonry couples. In the application cycle of reinforced rendering and backfilling, for the fixation of carbon fibre net. Additional bars in vaults, masonry couples. In the application cycle of reinforced rendering and backfilling, for the fixation of glass fibre net. Additional bars in vaults, masonry couples. Tecnofib C240 (300 gr/m 2 ) Carbon macro-fibre fabric, uni-directional. Tensile modulus of elasticity 240 GPa. Weight 300 g/m2. Tensile strength: 4.800 MPa Tensile modulus: 240 GPa Elongation : 2,1% Weight : 300 g/m 2 Calculation thickness : 0,167 mm Reinforcement of structures in the reinforced concrete, walls, arches, vaults and tunnels. CARBON AND GLASS FIBRE FABRICS Tecnofib C240 (600 gr/m 2 ) Tecnofib CROSS 230 (300 gr/m 2 ) Tecnofib TETRA CARB (380 gr/m 2 ) GLASS 73 TETRA GLASS Carbon macro-fibre fabric, uni-directional. Tensile modulus of elasticity 240 GPa. Weight 600 g/m2. Carbon macro-fibre fabric, bi-directional. Tensile modulus of elasticity 240 GPa. Weight 300 g/m2. Quadro-axial carbon fibre fabric with high tenacity. Uni-directional glass fibre textile. Tensile modulus 73 GPa. Low rigidity.guidelines CNR - DT 200/2004. Reinforcement system with quadro-axial glass fibre mes, balanced type. Guidelines CNR - DT 200/2004. Tensile strength: 4.800 MPa Tensile modulus: 240 GPa Elongation : 2,1% Weight : 600 g/m 2 Calculation thickness : 0,333 mm Tensile strength: 4.800 MPa Tensile modulus: 240 GPa Elongation : 2,1% Weight : 300 g/m 2 Calculation thickness : 0,166 mm Tensile strength: 4.800 MPa Tensile modulus: 240 GPa Elongation : >1,5% Weight : 380 g/m 2 Calculation thickness : 0,167 mm Tensile strength: 2.300 MPa Tensile modulus: 73 GPa Elongation : 3,5% Weight : 160/300g/m 2 Calculation thickness : 0,063-0,120 mm Tensile strength: 2.600 MPa Tensile modulus: 73 GPa Weight : 123-240g/m2 (on request) Reinforcement of structures in the reinforced concrete, walls, arches, vaults and tunnels. Reinforcement of structures in the reinforced concrete, walls, arches, vaults and tunnels. Strengthening of structures with a predominantly plate behavior as slab floors, vaults, masonry walls. Reinforcement of walls, backfilling, floors. Reinforcement of walls, backfilling, arches, vaults, concrete structures. RESINS Tecnoepo R Tecnoepo 700 primer Tecnoepo 701 Tecnoepo 701/L Tecnoepo 400 Tecnoepo IN03 Epoxy-amine based product modified with reactive diluents, formulated as an adhesive-putty paste, high thixotropy, twocomponent, room temperature curing Guidelines CNR - DT 200/2004. Epoxy-amine based product, formulated as adhesive promoter, bi-component, hardening at room temperature. Guidelines CNR - DT 200/2004. Epoxy-amine based product, formulated as adhesive /matrix, bi-component, hardening at room temperature. Guidelines CNR - DT 200/2004. Epoxy-amine based product, formulated as adhesive /matrix, bi-component, hardening at room temperature. Guidelines CNR - DT 200/2004. EN 1504-4 table ZA.1a Adhesive for structural bonding. approved 1305-CPD-0808;EN 1504-4 ZA.1a and ZA.1b Product for structural bonding of reinforced concrete with adhering mortar, of adhering concrete or for bonding of plates. Epoxy resin at very low viscosity for the structural injection in reinforced concrete with transmission of stresses. approved 1305-CPD-0808 ;EN 1504-5 ZA.1a Compressive strength : >50 MPa Flexural strength : >20 MPa Modulus of elasticity : 7 GPa Adhesion to concrete: concrete failure Adhesion by direct tensile (steel): >16MPa Compressive strength : >60 MPa Flexural strength : >45 MPa Modulus of elasticity : 7 GPa Adhesion by direct tensile (steel): >20MPa Compressive strength : >50 MPa Flexural strength : >20 MPa Modulus of elasticity : 0,9 GPa Adhesion by direct tensile (steel): >20MPa Compressive strength : >60 MPa Flexural strength : >35 MPa Modulus of elasticity : 4 GPa Adhesion by direct tensile (steel): >16MPa Compressive strength : >80 MPa Flexural strength : >40 MPa Modulus of elasticity : 5731 MPa Shear strength : >7MPa Direct tensile strength : > 25MPa Compressive strength : >75 MPa Flexural strength : >70 MPa Tensile Load at break : >40 MPa Flexural modulus of elasticity : > 2300 MPa For the sealing of cracks, discontinuities in general in concrete, installation of injection nipples, sealing interventions, concrete bonding of steel, tiles, bricks, stones, wood. Priming of the surface that host The reinforcement in composite materials, prior regularization of the same. Adhesive for the gluing of composite materials to the substrate. N.B.: the adhesive must well impregnate the complete fibre. Adhesive for the gluing of pultruded composite laminate plates to the substrate. As adhesive for : -castings (fresh concrete on fresh resin) -assembly of elements of structures made of concrete -assembly of prefabricated elements (segments) -grouting of anchor bolts and studs -reinforcement bars or steel plates. Sealing rigid cracks and joints in concrete structural elements and / or iron - steel. Sealing joints in masonry floors and roofs. Injection of wood. Specific structural elements: beams, columns and slabs, panels and segments prefabricated;
Two Prestigious Examples of Restoration and Consolidation of masonry through injections LIME INJECTION, Grouting joints and partial reconstructions with mortars High Deformation Energy, without rendering
Some applications of Systems Tecnofib TETRAGLASS Tecnofib TETRAGLASS Tecnofib FIOCCO glass 73 Tecnoepo 701 Tecnoepo 700 primer Tecnofib CW 240 Tecnoepo 701 Tecnofib FIOCCO C240 Tecnofib C240 Tecnobolt Tecnoepo 701
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