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MAPE-ANTIQUE RINZAFFO

MAPE-ANTIQUE RINZAFFO
4Pages

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IN COMPLIANCE WITH EUROPEAN STANDARD RENDERING AND PLASTERING MORTAR Salt-resistant, transpirant scratch-coat mortar, based on lime and Eco-Pozzolan, used as first layer when applying de-humidifying, transpirant and “structural” renders WHERE TO USE Repairs to old masonry deteriorated by the presence of capillary rising damp, including on buildings of historical and artistic interest. Repairs to masonry deteriorated by the disintegrating action of concentrated salts. Rebuilding old lime-based render deteriorated by the action of atmospheric agents and environmental conditions or by ageing. New transpirant and “structural” render on weak or particularly difficult masonry. Some application examples Mape-Antique Rinzaffo must be used as the first layer for: • nternal and/or external macro-porous, de-humidifying i render on walls with capillary rising damp. • e-humidifying render on stone, brick, tuff or mixed D masonry with saline efflorescence. • e-humidifying render on masonry in lagoon areas D or close to the sea. • ew de-humidifying render or reconstructing old N lime-based render on stone, brick, tuff and mixed masonry, including on buildings of historical and artistic interest with a conservation order or under the protection of the National Trust. • ew transpirant and “structural” render on particularly N difficult masonry, such as in stone or mixed material, or on masonry which is porous or weak. TECHNICAL CHARACTERISTICS Mape-Antique Rinzaffo is a pre-blended, cement-free scratch-coat mortar in powder form made from lime, Eco-Pozzolan, natural sand, special additives and micro-fibres according to a formulation developed in MAPEI’s research laboratories. This product is classified as GP according to EN 998-1 Standards: “General purpose mortar for internal/external render”, category CS IV. When mixed with water in a continuous-feed rendering machine or cement mixer, Mape-Antique Rinzaffo forms a salt-resistant, transpirant scratch-coat mortar with a semi-fluid consistency which is easy to apply by trowel or with a rendering machine on both vertical surfaces and ceilings. When used as the first layer for de-humidifying, transpirant and “structural” render, Mape-Antique Rinzaffo improves the bond, even out the absorption of substrates and slows down the transfer of salts. The properties of mortar made using Mape-Antique Rinzaffo, such as mechanical strength, modulus of elasticity and porosity, are very similar to mortar made using lime, lime-pozzolan and hydraulic lime originally used in the construction of old buildings. Compared with these types of mortar, however, Mape-Antique Rinzaffo also has properties which make the product resistant to various chemical-physical aggressive phenomena, such as the presence of soluble salts, freeze-thaw cycles, the leaching action of rainwater, alkali-aggregate reactions and the formation of cracks caused by plastic shrinkage. When working on particularly damp internal walls or in cold weather, the setting and hardening times of Mape-Antique Rinzaffo are considerably longer and much more time than usual must be allowed for the product to cure. The product may give off a different odour for a while when curing under such conditions [Risanamento murature] 607_mape-antique rinzaffo_gb (4) (18.

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Brick wall after removing the deteriorad render Preparation of Mape-Antique Rinzaffo Application of Mape-Antique Rinzaffo and may turn green in some areas. The odour and green colour will gradually disappear as the product and wall dry out until it takes on its characteristic light colour. Typical values are shown in the Technical Data table (see Application Data and Final Performance sections) which refer to the main characteristics of Mape-Antique Rinzaffo at both fresh and hardened states. RECOMMENDATIONS • If there is capillary rising damp and soluble salts, apply a layer of...

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TECHNICAL DATA (typical values) PRODUCT IDENTITY Type of mortar (EN 998-1): GP: “General purpose mortar for internal/external render” Maximum size of aggregate (EN 1015-1) (mm): Bulk density (kg/m³): APPLICATION DATA OF PRODUCT (at +20°C – 50% R.H.) Mixing ratio: 100 parts of Mape-Antique Rinzaffo with 25-27.5 parts of water (5-5.5 litres of water per 20 kg bag of product) Bulk density of fresh mortar (EN 1015-6) (kg/m³): Porosity of the mortar while still fresh (EN 1015-7) (%): Application temperature range: Workability time of fresh mortar (EN 1015-9): FINAL PERFORMANCE (26% mixing water)...

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Application by trowel After pouring the minimum amount of clean water required into the mixer (5 litres per 20 kg bag of Mape-Antique Rinzaffo), slowly add the powdered mortar in a continuous flow. Mix for approximately 3 minutes and check that the blend is well mixed, even and free of lumps and that no material has stuck to the sides and bottom of the mixer. Add a further amount of water if required up to a total of 5.5 litres per bag, including the water added at the start of mixing. Then mix the Mape-Antique Rinzaffo again for a further 2-3 minutes, according to the efficiency of the...

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MAPE-ANTIQUE RINZAFFO 4Pages

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MAPE-ANTIQUE RINZAFFO
4Pages