PATHOLOGICAL ANALYSIS OF THE BUILDINGS RAISED UNDER THE SANDINO SYSTEM SPECIFICATIONS IN THE CANASÍ COMMUNITY

Abstract

For almost 50 years the Sandino System has been a rural and urban housing building fixture in Cuba. However, very few literatures have been written on its features, evolution and, above all, on the way it endures the passing of time. This paper tackles this subject by making a pathological study of four buildings raised more than forty years ago under the aforementioned system specifications and located at a rural community close to the coastal area in the Mayabeque province. Via visual inspection its basic elements were characterized, its main damaged areas were identified as well as it causes and, by means of technical sheets, intervention and solution proposals were made. The statistical and technical analysis to make a critical evaluation by using the Criticality Pattern Matrix of the deteriorations concluded that: the main factor of incidence (100%): lack of proper paint coating and the existence of cracks and fissures in the joints of the concrete slabs of the mezzanines, this last one by all means the most critical (High Criticality – 6%), whereas the most damaged structural elements were the mezzanines (23%), balconies (20%) and stairs (13%). Main deterioration sources were humidity as a result of bad roofing protection and its corrosive effects on the steel bars of the structural elements of the system.