• Dr. S.K. Sharma

Construction in the coastal areas includes construction of oil and gas industries in off shore areas which is one of the most crucial challenges as it deals with the exploration and production of flammable things. The construction also includes ports and harbours, and other special marine structures. There are various challenges like unduly waves, unexpected sea storms which can affect the strength of marine structures. The studies reveal that corrosion rates in case of old reinforcement steel bars are very high as compared to fresh reinforcement steel bars, which are used as reinforcements in concrete structures. Therefore, it confirms that reinforcing bars should not be allowed to corrode due to prolonged storage in open space prior to embedment in concrete. In marine construction, the effective cover of 25mm has higher corrosion compare to the effective cover of 50-70 mm. Marine clay is type of clay which is found in the coastal regions around the world, It is sometimes called as the quick clay which is notorious for being involved in the landslides, clay particles can self-assemble into various configurations, each with totally different properties, when clay is deposited in the ocean, the presence of excess ions in sea water causes a loose, open structure of the clay particles to form, this process is well known as flocculation. Once stranded and dried by ancient changing ocean levels this open framework means that, such clay is open to water infiltration. Swelling of marine clay has the potential to destroy building foundations only in few years, due to the changes in the climatic conditions in the construction site, the pavement constructed on the marine clay will have less durability and requires a lot maintenance cost, thus challenging the civil engineering fraternity to find newer long-lasting solutions for the marine site construction problems.

Construction challenges in Coastal and Marine areas in India

"A Review of Construction challenges in Coastal and Marine areas in India", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 2, page no.38-40, February-2018, Available :http://www.jetir.org/papers/JETIR18MG007.pdf

"A Review of Construction challenges in Coastal and Marine areas in India", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 2, page no. pp38-40, February-2018, Available at : http://www.jetir.org/papers/JETIR18MG007.pdf