Fibromix 41. The product REPAIR MORTARS. Fields of application TECHNICAL DATA SHEET 42 FI S W 07/14 EN

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1 Fibromix 41 The product is a fibre-reinforced, thixotropic, cement-based, ready-mixed compound with low modulus of elasticity used for localised repairs of cement-based plaster, lime-cement plaster, concrete and reinforced concrete. Fields of application To restore any missing cement or limecement plaster before the finishing phase; to repair and smoothen porous and chipped cement-based surfaces; superficial repair of concrete and reinforced concrete structures; to seal the rendering mortar on exposed walls. 39

2 Advantages Excellent thixotropy that allows the product to be applied without formwork; excellent workability and good surface finish; good adhesion to all cement-based surfaces; adequate chemical and physical compatibility with the indicated surfaces; applied with a trowel or sponge; low modulus of elasticity VOLTECO S.p.a Via delle Industrie, Ponzano Veneto (I) VOLTECO S.p.a Via delle Industrie, Ponzano Veneto (I) CPR-2013/07/01 EN :2006 Structural and non structural PCC repair mortar for concrete restoration, structural strengthening and preserving or restoring passivity Reaction to fire: Class A1 Compressive strength: Class R2 15 MPa Chloride ion content: 0,05 % Adhesive bond: 0,8 MPa Carbonatation resistance: Not relevant Elastic modulus: Not relevant Thermal compatibility: Part 1: Freeze-Thaw cycling: 0,8 MPa Part 2: Thunder shower cycling (thermal shock): Not relevant Part 4: Dry cycling: Not relevant Skid resistance: dry: class II; wet: class I Capillary absorption: 0,5 kg*m -2 *h -0,5 Restrained shrinkage/expansion: Not relevant Coefficient of thermal expansion: Not relevant Dangerous substances: See SDS CPR-2013/07/01 EN 998-1:2004 Mortar for general purpose for external and internal plastering Apparent volumetric mass of dry mortar: kg/m 3 Adhesive bond: 0,1 MPa, FP A Capillary water absorption: W 2 Compressive strength: CS IV Water vapour permeability: µ < 50 Thermal conducibility (table value): 0,83 W/mK Reaction to fire: Euroclass A1 Dangerous substances: See SDS Characteristics Appearance Specific weight Shrinkage Physical and technical specifications Pot life at +20 C 30 Characteristic Flexural strength after 2 days after 7 days after 28 days Compressive strength after 28 days Test method UNI EN UNI EN UNI EN grey powder Performance requirements UNI EN Class R2 Declared performance (*) < 1,85 kg/l controlled > 1,0 MPa > 2,0 MPa > 3,0 MPa 7,4 MPa UNI EN MPa > 15 MPa 29,7 MPa Chloride ions content UNI EN ,05% 0,002% Adhesion to the concrete UNI EN ,8 MPa > 1,5 MPa 2,85 MPa Certified performance (**)

3 Physical and technical specifications Characteristic Test method Performance requirements UNI EN Class R2 Declared performance (*) Certified performance (**) Capillary absorption coeffi cient UNI EN ,5 kg * m -2* h -0,5 < 0,4 kg * m -2* h -0,5 0,36 kg * m -2* h -0,5 Thermal compatibility part 1 (adhesion after 50 un/freezing cycles) Resistance to slipping The quoted data are obtained in a laboratory at +20 C and 60% RH UNI EN ,8 MPa 1,1 MPa UNI EN Class I: >40 units with wet test Class II: >40 units with dry test Class III: >55 units with wet test dry: class II wet: class III Reaction to fi re UNI EN Classifi cation Euroclass A1 Characteristics Appearance Mixing water 20% Apparent bulk density (UNI EN ) Maximum aggregate diameter Thermal conductivity (UNI EN 1745) Reaction to fi re (UNI EN ) Parameters subject to Company Quality Control Apparent volumetric mass of dry mortar (UNI EN ) grey powder 1,55 1,75 kg/l < 1 mm 0,83 W/mK Class A1 Air content (UNI EN ) > 15% Water vapour permeability coeffi cient μ (UNI EN ) < 50 Compressive strength after 28 days (UNI EN ) 1,55 1,85 kg/l < 6 N/mm 2 (category CS IV) Bond strength (UNI EN ) > 0,1 N/mm 2 (type breaking A) Capillary water absorption (UNI EN ) Preparation and application Preparing the surfaces Perfect adhesion of to the surface, which is absolutely necessary to ensure restoration resistance, depends on the quality of the surface preparation on which the product is to be applied. Therefore, the following steps must be carried out in advance: - thoroughly remove dust, loose parts and any finishing layers that have not adhered well; W2 * Performance thresholds guaranteed by VOLTECO ** Performance values certified by accredited third parties - thoroughly soak the surfaces with water, keeping them damp from when the product is applied, which must not be done with surface water (this must be removed with a sponge or compressed air). Preparing the mixture is ready for use; pour the mixing water into a container (approx. 5 l per bag equivalent to 20% in weight) and slowly add 41

4 Preparation and application the powder, mixing it with a drill-mixer for about 3 minutes, until a smooth mixture is obtained. Application Apply in layers not exceeding 2 mm, using a trowel or a flat spatula; wait at least 20 minutes between one layer and another when thicker layers are applied. Before applying the product on large surfaces or particularly uneven and rough, optimise adhesion to the surface by applying the first layer of as a rough coat. Wait at least 12 hours and then apply the subsequent layers with a trowel or spatula. Finishing A sponge float can be used for the FIBROMIX 41 finish, approx minutes (at +22 C) after product application; the finished surface will be very similar to a medium-grain plaster finish. Following the float finish, and in any case not before a minimum of 24 hours after product application, can be finished directly with CP1 or CP2 or a suitable finishing product/system. 42 Warnings must be used within 30 minutes after mixing. No water is to be added to prolong the pot life of. Do not apply if the temperature is lower than +5 C. In the presence of a high temperature or wind, keep the surface damp so as to guarantee a proper curing process.

5 Consumption and yield 15 kg/m 2 per centimetre in applied thickness. A bag of yields about 17 l of mortar. Packaging and storage is packed in 25 kg bags. The product must be stored in a dry place. 43 Safety is a non-toxic alkaline product. It is recommended to use a mask and gloves while working. In case of accidental contact with eyes, wash thoroughly with water and consult a doctor. This text is a translation and may therefore contain technical and linguistic inaccuracies. Please refer to the Italian version.