Concrete can present various degradation problems which reduce its durability and resistance. The main ones are:
–descaling with loss of lime by hydrolysis, consequent increase in capillary voids, predisposition for cracking along the reinforcements and reduction of mechanical strength
–sulphatic attack of magnesium which produces swelling;
–carbonation which leads to the formation of calcium bicarbonate with lower characteristics than the original matrix;
PROBLEMS : superficial detachments, swellings and cracks
SURVEY TECHNIQUES: cracks pattern analysis, carbonation analysis, chloride research
REINFORCING BARS CORROSION
By means of a specific electrochemical process an anodic reduction takes place and a consequent cathodic deposit of rust with reduction of the useful section of the reinforcement and formation of swelling of the concrete (spalling).
PROBLEMS: superficial detachments, swellings, cracks and cracks
SURVEY TECHNIQUES: corrosion analysis
HARDY SLABS INTEGRITY
Hardy slabs can present important mechanical resistance problems.
PROBLEMS: deformations and subsidence
SURVEY TECHNIQUES: sonic analysis, endoscopy, load tests, pacometers
all masonry and reinforced concrete structures can present injuries due to thermal, static and dynamic phenomena.
PROBLEMS: surface injuries, detachments, infiltrations
SURVEY TECHNIQUES: CONCRETEcrack pattern analysis, deformometry, thermal monitoring
Buildings and structures can present problems of waterproofing or disposal of rainwater.
SURVEY TECHINIQUES: thermography, surface and internal temperature and humidity measurements
The thermal insulation characteristics of buildings represent the fundamental component for the realization of living comfort.
PROBLEMS: energy consumption, humidity, stains
thermography, surface and internal temperature and humidity measurements
L’incendio, nel caso delle strutture in cemento armato, può portare ad una riduzione non immediatamente evidente della sua resistenza meccanica.
PROBLEMI: distacchi, riduzione capacità portante
TECNICHE DI INDAGINE: sclerometria, analisi sonica, microscopio ottico