R3 Cementitious Pore Sealer and Levelling Mortar

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1 Product Data Sheet Edition 15 June 2010 Identification no: (Template for local translation, only for internal use) Sika MonoTop -723 N R3 Cementitious Pore Sealer and Levelling Mortar Construction Product Description Sika MonoTop -723 N is a polymer modified surfacing/finishing mortar, ready to mix, meeting the requirement of class-r3 of EN Uses Suitable for restoration work (Principle 3, method 3.1 and 3.3 of EN ) Suitable for preserving or restoring passivity (principle 7, method 7.1 and 7.2 of EN ) Use as a concrete pore sealer / levelling mortar Repairing of minor defects (pores and honeycombed concrete) Thin layer render Characteristics / Advantages Tests Excellent workability and finishing Suitable for hand or wet spray application Can be applied up to 5mm thick per application layer Class R3 of EN Restoration work High sulphate resistant Low cracking sensitivity Low chloride permeability Compatible with Sikagard overcoat systems A1 fire rating Approvals / Standards LPM, Laboratory for Preparation and methodology (Beinwil am See, Switzerland) Initial type testing report in accordance with EN , Nr A-33,877-1E dated 9 th April MPA Stuttgart, Fire Classification and Test Reports, /10/ 1-3 dated 23 rd April Product Data Form Appearance / Colour Packaging Grey powder 25 kg bag Storage Storage Conditions / Shelf-Life 12 months from date of production if stored properly in undamaged original sealed packaging, in dry cooled conditions. 1 1/5

2 Technical Data Chemical Base Density Grading Layer Thickness Thermal Expansion Coefficient Carbon Dioxide Diffusion Resistance Water Vapour Diffusion Resistance Portland cement, selected aggregates, additives and polymer modified Fresh mortar density: ~ 2.00 kg/l D max : 0.40 mm 1.0 mm min. / 5.0 mm max. per layer 10.5 x 10-6 m/m. C (EN 1770) ~ μco 2 ~ 120 μh 2 O Mechanical / Physical Properties 20 c in lab conditions Compressive Strength ~ 40 N/mm 2 at 28 days (EN 196-1) Flexural Strength ~ 8-9 N/mm 2 at 28 days (EN 196-1) Adhesive Bond ~ 2.0 N/mm 2 (EN 1542) Requirements Requirements as per EN Class R3 (tested at Water: Powder ratio = 18%) Test Method Results (ITT results) Requirements (R3) Compressive Strength EN N/mm² (MPa) 25 N/mm² (MPa) Chloride Ion Content EN < 0.01% 0.05% Capillary Absorption EN kg.m -2.h kg.m -2.h -0.5 Carbonation Resistance EN Pass Lower than control Elastic Modulus EN kn/mm² (GPa) 15 kn/mm² (GPa) Thermal Compatibility Part 1: Freeze-Thaw EN N/mm² (MPa) 1.5 N/mm² (MPa) Adhesive Bond EN N/mm² (MPa) 1.5 N/mm² (MPa) System Information System Structures Sika MonoTop -723 N is part of the Sika Repair System complying with the relevant part of European Standard EN 1504 and comprising of: Bonding primer and reinforcement corrosion protection - Sika MonoTop -910 N: Normal use - SikaTop Armatec 110 EpoCem : Demanding requirements Non-structural repair mortars: - Sika MonoTop -211 RFG: R2 fast hardening repair mortar Structural repair mortars: - Sika MonoTop -352 N/ -352 NFG: R3 light weight repair mortar - Sika MonoTop -412 N/ -412 NFG: R4 repair mortar - Sika MonoTop -723 N: R3 Pore sealer and levelling mortar 2/5

3 Application Details Consumption This depends on the substrate roughness and thickness of layer applied. As a guide, ~ 1.7 kg of powder per m² per mm thick. 1 bag yields approximately 14.7 litres of mortar Substrate Quality Concrete: The concrete shall be free from dust, loose material, surface contamination and materials which reduce bond or prevent suction or wetting by repair materials Reference should also be made to EN for specific requirements Substrate Preparation Concrete: Delaminated, weak, damaged and deteriorated concrete and where necessary sound concrete shall be removed by suitable means. The surface shall be thoroughly pre-wetted and not be allowed to dry before application of the concrete repair mortar. The surface shall achieve a dark matt appearance without glistening and surface pores and pits shall not contain water. Application Conditions / Limitations Substrate Temperature Ambient Temperature +5 C min.; +35 C max. +5 C min.; +35 C max. Application Instructions Mixing Ratio Mixing Application Method / Tools ~ 4.5 litres of water for 25 kg powder Sika MonoTop -723 N can be mixed with a low speed (< 500 rpm) electric drill mixer. In small quantity, Sika MonoTop -723 N can also be mixed by hand. Pour the water in the correct proportion into a suitable mixing container. While stirring slowly, add the powder to the water. Mixed thoroughly at least for 3 minutes to the required consistency. Sika MonoTop -723 N can be applied either manually using traditional techniques or mechanically using wet spray equipment. Apply by trowel and rub down with wooden/plastic float or damp sponge. Cleaning of Tools Potlife Waiting Time / Overcoating Notes on Application / Limitations Clean all tools and application equipment with water immediately after use. Hardened material can only be mechanically removed. ~ 40 minutes at +23 C As guidance, Sika MonoTop -723 N can receive an overcoat 4 days after application (3 days curing + 1 day drying) with Sikagard range of protective coatings. For other emulsion paints, refer to the relevant manufacturer s data sheet/ documentation. - Refer to the Method Statement for Concrete Repair using Sika MonoTop system for more information regarding substrate preparation or refer to the recommendations provided in EN Avoid application in direct sun and/or strong wind. - Do not add water over recommended dosage - Apply only to sound prepared substrate, min 25 N/mm 2 compressive strength - Do not add additional water during the surface finishing as this will cause discoloration and cracking - Protect freshly applied material from freezing Curing Details Curing Treatment Protect the fresh mortar from early dehydration using the relevant curing method. 3/5

4 Value Base All technical data stated in this Product Data Sheet are based on laboratory tests. Actual measured data may vary due to circumstances beyond our control. Local Restrictions Please note that as a result of specific local regulations the performance of this product may vary from country to country. Please consult the local Product Data Sheet for the exact description of the application fields. Health and Safety Information Legal Notes For information and advice on the safe handling, storage and disposal of chemical products, users shall refer to the most recent Material Safety Data Sheet containing physical, ecological, toxicological and other safety-related data. The information, and, in particular, the recommendations relating to the application and end-use of Sika products, are given in good faith based on Sika's current knowledge and experience of the products when properly stored, handled and applied under normal conditions in accordance with Sika s recommendations. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The user of the product must test the product s suitability for the intended application and purpose. Sika reserves the right to change the properties of its products. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request. It may be necessary to adapt the above disclaimer to specific local laws and regulations. Any changes to this disclaimer may only be implemented with permission of Sika Corporate Legal in Baar. 4/5

5 Note CE Labelling The following chapter is only mandatory for countries relevant to CE marking The harmonised European standard EN Products and systems for the protection and repair of concrete structures Definitions, requirements, quality control and evaluation of conformity Part 3 Structural and non-structural repair specifies the identification, performance (including durability) and safety of products and systems to be used to repair concrete surfaces (either building or civil engineering structures). Non-structural repair fall under this specification they need to be CE-labelled as per Annex ZA.2, table ZA.2 conformity 2+ and fulfil the requirements of the given mandate of the EU Construction Products Directive (89/106/CE). Construction XXXX Sika Services AG, Tüffenwies 16, P.O Box CH-8048 Zürich Switzerland Factory Number XXXX XX XXXX-AAA-YYYY EN Pore Sealer and Levelling Mortar PCC mortar (based on polymer hydraulic cement mortar) Compressive strength Class R3 Chloride ion content 0,05 % Adhesive bond 1.5 MPa Carbonation Resistance Pass Thermal Compatibility Part 1: Freeze-Thaw 1.5 MPa Elastic Modulus 15 GPa Capillary Absorption 0.5 kg/(m 2 xh 0.5 ) Reaction to fire Class A1 Dangerous substances comply with 5.4 Notified Body Certification Number Assigned number by COP to the producing company Year of CE marking (last 2 digits) Number of the FPC certificate Note: Information in CE box to be completed by local Sika organisation accordingly. 5/5