Persian Gulf region is known as one of the harshest environment for reinforced concrete structures. During past years, construction of RC structures in Persian Gulf has increased due to its special and strategic location (widely Gas and Oil industries). Unfortunately, today, many of these structures are suffering from chloride contamination which cause steel reinforcement corrosion and finally cause premature deterioration and failure. This deterioration process is responsible for huge financial costs spent on the repair and maintenance of RC structures annually. Thus, to restoring or increasing of service life and efficient operation in deteriorated of RC structures, it is necessary repair and\or rehabilitation activates accomplished.
CMI, base on technical science and its expertise in the field of concrete structures durability assessment and with the up-to-date knowledge about concrete structures maintenance and repairing methods, performed so many projects in the last years. Some of these projects are as bellow:
- SHAHID BAHONAR port jetties No. C1 and C5 (2008-2009),
- Persian Gulf Mining and Metal Industries Special Zone steel Jetty (2007-2009),
- IMAM KHOMEINI port Jetty No. 1 and No. 2 (2007-2008),
- IMAM KHOMEINI port petrochemical Jetty (2007-2008),
- Qeshm Island Kaveh Jetty (2006-2007),
- SHAYAN Hotel in Kish Island (2005),
The primary effective elements in structures assessment are investigations of chloride penetration, carbonation, impure concrete materials and covers. Furthermore, effect of various environmental conditions such as barnacles on chloride penetration rate has been investigated. Nondestructive tests has also valuable role on corrosion probability and rate estimation for determining reinforcements condition and choosing proper rehabilitation methods.