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1. WO2020109650 - PROCÉDÉ DE REVÊTEMENT PAR SAUPOUDRAGE À SEC D'UN PLANCHER EN BÉTON

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

Claims

1. A method in dry shake coating of a concrete floor, whereby an applied floor concrete mass (B) is first of all subjected to early aftercare, most pref-erably by spraying its surface with an early after-care agent , in which connection, if necessary, after floating, on top of the floor concrete mass is ap-plied a dry shake material (K) , in which connection the surface of a currently underlying dry shake layer (Kl) is troweled prior to the application of a next dry shake layer (K2) to be processed thereupon, whereafter the lastly processed dry shake layer of a concrete floor is troweled and the concrete floor is subjected to actual aftercare with an aftercare agent , water spraying, plastic sheet, filter fabric protection, or the like, characterized in that, in the process of spreading the dry shake material (K) on top of the floor concrete mass for two or more su-perimposed dry shake layers (Kl , K2) , it is for in-creasing an overall thickness of the dry shake coat-ing and for enhancing mutual bonding of the superim-posed dry shake layers that the application of the underlying dry shake layer (Kl) is followed by spreading over its surface a water soluble silica-based medium (V) prior to and/or during the course of troweling this particular dry shake layer and prior to the application of the overlying dry shake layer (K2) to be spread thereupon.

2. A method according to claim 1, characterized in that the processing of the superimposed dry shake layers (Kl, K2) is implemented by using the nanosilica-based medium (V) .

3. A method according to claim 1 or 2 , charac-terized in that the final dry shake structure of a concrete floor is constructed from three or more dry shake layers processed on top of each other, each dry shake layer (Kl, K2) being treated with the medium (V) prior to and/or during the course of troweling.

4. A method according to any of the preceding claims 1-3 , characterized in that the process of as-sembling the dry shake structure of a concrete floor is carried out by using a dry shake dosage of 10-15 kg/m2.

5. A method according to any of the preceding claims 1-4, characterized in that the actual after-care of the completed dry shake floor or the subse-quently conducted service or maintenance procedure for the dry shake floor is conducted by treating its surface with diamond honing .