PROCESS FOR REPAIRING CRACKS BY MEANS OF REINFORCEMENT BARS

The invention relates to a process for repairing cracks in reinforced concrete, applied for the refurbishing works in constructions such as chimneys, cooling towers, tunnels and other constructions exhibiting structural cracks with an opening therebetween of 6 and 60 mm. According to the invention,...

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Bibliographische Detailangaben
Hauptverfasser: DUMITRACHE ION, MATEESCU IOAN, POP ESCU AUGUSTIN GHEORGHE
Format: Patent
Sprache:eng ; rum
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Zusammenfassung:The invention relates to a process for repairing cracks in reinforced concrete, applied for the refurbishing works in constructions such as chimneys, cooling towers, tunnels and other constructions exhibiting structural cracks with an opening therebetween of 6 and 60 mm. According to the invention, the process consists in carrying out some drilled holes (1) inclined in relation to a concrete surface (2), so that the drilled hole (1) penetrates in both sides of a crack (3), on equal distances relative to the median line thereof, wherein there are introduced some reinforcement bars (4) of type PC 52 with a diameter of 10 or of 12, the crack (3) is filled with a filler (5) that is a polymerically modified mortar with rapid setting, the bars (4) are removed and the free holes are filled up to half with a special gel-type epoxy resin (6), followed by ultimately inserting the metal bars (4). Invenţia se referă la un procedeu de reparare a crăpăturilor din beton armat, aplicat în lucrările de reabilitare a construcţiilor, precum coşuri de fum, turnuri de răcire, tunele şi a altor construcţii care prezintă crăpături structurale cu deschidere între 6 şi 60 mm. Produsul conform invenţiei constă în practicarea unor găuri forate (1) înclinate faţă de o suprafaţă de beton (2), astfel încât gaura forată (1) să pătrundă în ambele părţi ale unei crăpături (3), pe distanţe egale faţă de linia mediană a acesteia, în care se introduc nişte bare (4) de armătură tip PC 52 fi10 sau fi 12, se execută umplerea crăpăturii (3) cu un produs de umplere (5) care este un mortar modificat polimeric cu priză rapidă, se scot barele (4) de armătură, iar golurile lăsate de bare se umplu până la jumătate cu o răşină (6) epoxidică specială, de tip gel, după care se introduc definitiv barele metalice (4). ŕ