Define the marine growth - underwater inspection of bridges, Civil Engineering

Define the Marine Growth - Underwater inspection of bridges?

Bridges on many inland waterways are relatively clean and free of marine growth. However, there is likelihood of marine growth and incrustations on underwater structures especially in marine/coastal areas. The marine growth can be seaweeds, barnacles and various types of bacteria and other simple organisms. From an engineering point of view, there are two main categories of fouling - soft fouling and hard fouling. Soft fouling is caused by those organisms, which have a density approximately the same as seawater.

They are easy to remove to facilitate inspection. Organisms causing hard fouling are much denser and more firmly attached to the structure and are, therefore, difficult to remove. Cleaning marine growth from the underwater portion of the bridge is almost always necessary during an underwater inspection. The extent of cleaning depends on the amount of growth present and the type and level of inspection.

Posted Date: 6/12/2013 6:44:08 AM | Location : United States







Related Discussions:- Define the marine growth - underwater inspection of bridges, Assignment Help, Ask Question on Define the marine growth - underwater inspection of bridges, Get Answer, Expert's Help, Define the marine growth - underwater inspection of bridges Discussions

Write discussion on Define the marine growth - underwater inspection of bridges
Your posts are moderated
Related Questions
Q. Write short notes on Aqua Privy Latrine? There are a sort of latrines also called septic tank latrines. These are constructed over septic tanks & flushing is also provided.

An engineer deposits an "X" amount every 6 months for 3 years so that she'll have $10,000 at the end of this period. The interest rate is 5% per year which is rebalanced every 6-mo

Q. Natural rubber and Synthetic rubber? There is often a confusion between the words elastomer and neoprene. While elastomer refers to the generic name of the rubber, neoprene

Question In case of for unreinforced concrete carriageway, what will succession of closing and opening of expansion joints and contraction joints? Answer Take a case t

Write the principle of reversibility of light.

what are the basic reqiureents for stairs. explain the basic procedures for stair construction

Explain the Underwater Problems and Material Defects? The major bridge construction materials are steel and concrete. In the past, stone and brick masonry, with lime mortar as

Question In modeling a nonrigid mat foundation by using elastic springs, have a uniform modulus of subgrade reaction be used along whole base of mat ? Answer A bed of

Uncompacted bedding for concrete pipes In the middle third of the base of precast concrete pipes, bedding layers are suggested to be left Uncompacted since it helps to decreas

How to do deflection calculations Basic values of span to effective depth ratios for spans upto 10m may be taken as 7, 20 and 26 for cantilever, simply supported and continuous