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Problemele tipice ce trebuie remediate la structurile din beton sunt:
- impermeabilizarea rosturilor de constructie

- etansarea suprafetei structurilor din beton cu scurgeri
- impermeabilizarea crapaturilor (inchiderea, etansarea si imbinarea fexibila a crapaturilor cu scurgeri, la structure noi sau existente)
- repararea crapaturilor si golurilor structurale (se imbina si se umplu crapaturile si golurile unde este necesara rezistenta constructiei)
- impermeabilizarea membranelor deteriorate
- impermeabilizarea gropii de fundatie (etansarea crapaturilor si fisurilor cauzate de stratul acvifer sau de pe zidurile de sprijin ale fundatiei)
Materialul de injectare trebuie să aibă:
- vascozitate scazuta (se obtine o mai buna penetrare a crapaturilor, precum si se reduce presiunea mare de injectare)
- expansiune mare (se obtine un rezultat mai bun de etansare prin umplerea completa a fisurilor si golurilor si, de asemena, scade consumul de material datorita volumului marit dupa expansiune)
- timp de reactie scurt (determina perioade scurte de asteptare intre doua lucrari)
- durata mare de pastrare
- flexibilitate
- durabilitate mare, imbatranire minima
- rezistenta mare la chimicale agresive
- toxicitate nula
Soluții folosite
Injecții de impermeabilizare
- Sika Injection-101-RC - rasina poliuretanica de injectare, cu vascozitate redusa, cu spumare rapida in prezenta apei, fara solventi, care prin intarire devine o spuma densa si elastica, cu structura celulara fina
- Sika Injection-201-CE - rasina poliuretanica de injectare, elastica, fara solventi, cu vascozitate foarte scazuta. In contact cu apa, prezinta o structura impermeabila elastica, uniforma, cu porii inchisi
- Sika Injection-AC10 - lichid incolor care accelereaza timpul de reactie al rasinilor PU spumante de injectare Sika Injection-101 RC
- Sika Injection Packere - materiale auxiliare pentru injectare
Injecții structurale
- Sikadur-52 Injection - rasina epoxidica bicomponenta, folosita pentru injectarea si astuparea fisurilor rigide. Este aplicabila cu pompa airless sau cu pompa manuala, prin intermediul elementelor de injectare
- Sika InjectoCem-190 - suspensie de injectare cimentoasa, bicomponenta, pentru injectarea fisurilor si crapaturilor. Contine inhibitori de coroziune
- Sika Injection Packere - materiale auxiliare pentru injectare
Galerie de imagini
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