Liant hidraulic filerizat, superfluid, pe baza de var MAPEI Mape-Antique F21

Limba: Engleza

86 afisari

Tip documentatie: Fisa tehnica

Pagina 1 - Liant hidraulic filerizat, superfluid, pe baza de var MAPEI Mape-Antique F21 Fisa tehnica...

ue 1 iq F2 nt -A pe a M Super-fluid, saltresistant, fillerized hydraulic binder, based on lime and Eco-Pozzolan, for making injection slurries for consolidating masonry and render, including the frescoed one WHERE TO USE Consolidating foundations, pillars, vaulted roofs and archways. Consolidating “cement-core” walls and stone, brick, tuff and mixed masonry in general on old buildings, including those of historical or artistic interest, with cracks, gaps or small to large internal cavities. Consolidating masonry with the presence of capillary rising damp and soluble salts. Consolidating structures with murals. Consolidating render detached from the substrate, including those with murals or of historical and artistic interest. Some application examples Super-fluid, volumetrically-stable injection slurry with high resistance to soluble salts for consolidating: • oundations, pillars, vaulted roofs and archways; f • cement-core” walls and stone, brick, tuff and mixed “ mason

Pagina 1-Liant hidraulic filerizat, superfluid, pe baza de var MAPEI Mape-Antique F21 Fisa tehnica Engleza ue...

Pagina 2 - Liant hidraulic filerizat, superfluid, pe baza de var MAPEI Mape-Antique F21 Fisa tehnica...

ry in general on old buildings, including those of historical or artistic interest with a conservation order or under the protection of the National Trust, with cracks, gaps or small to large internal cavities; • asonry with the presence of capillary rising damp m and soluble salts; • tructures with murals; s • ender detached from the substrate, including those r with murals or of historical and artistic interest. TECHNICAL CHARACTERISTICS Mape-Antique F21 is a cement-free hydraulic binder in powder form for injection slurry made from lime, Eco-Pozzolan, natural ultra-fine sand and special water-retention additives according to a formulation developed in MAPEI’s research laboratories. When mixed with water in a suitable clean container, Mape-Antique F21 forms a super-fluid, volumetrically-stable injection slurry resistant to salts which is easy to inject with a manual or electronic pump, by hand with a large-capacity syringe, such as those used by veterinary surgeons, or

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by gravity casting. The properties of slurry made using Mape-Antique F21, such as mechanical strength, modulus of elasticity and porosity, are very similar to slurry made using lime, lime-pozzolan or hydraulic lime originally used in the construction of old buildings. Compared with these types of slurry, however, Mape-Antique F21 also has properties which make the product resistant to various chemical-physical aggressive phenomena, such as freeze-thaw cycles and alkali-aggregate reactions, and most importantly to soluble salts. In fact, just a few hours after application, it contains no more “free” lime thanks to the reaction between the lime and the Eco-Pozzolan which “consumes” it in a very short space of time. Apart from hardening the slurry, this reaction makes it mechanically stronger with uniform chemical-physical properties throughout the product. The characteristics and the efficiency of Mape-Antique F21 for consolidating masonry and render, including those with murals

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, was verified by 608_mape-antique f21_gb (25.10.2012 - 1ª Bozza/Corr. PDF) ue tiq F21 n e-A p Ma Detailed view of flow the injection tubes are fastened in place Injecting Mape-Antique F21 into stone masonry Injecting Mape-Antique F21 into frescoed wall the Istituto Centrale del Restauro (ICR, the Central Restoration Institute), now known as the Istituto Superiore per la Conservazione e il Restauro (ISCR, the Higher Conservation and Restoration Institute) during the consolidation operations on murals and the inner and outer faces of the domed roofs on the San Francesco of Assisi Cathedral. 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 F21 at both the fresh and hardened states. RECOMMENDATIONS • Do not use Mape-Antique F21 to consolidate structures with large cracks, gaps or cavities (use Mape-Antique I). • o not use Mape-Antique F21 for casting D into for