TREMIE METHOD OF UNDERWATER CONCRETING PDF

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Lost your password? Please enter your email address. You will receive a link and will create a new password via email. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi adipiscing gravdio, sit amet suscipit risus ultrices eu. Fusce viverra neque at purus laoreet consequa. Vivamus vulputate posuere nisl quis consequat. The degradation of concrete under water is a serious and troublesome matter. Underwater concreting is necessarily adopted in marine works and in deep foundations.

Due to the continuous loss of cement and segregation of concrete , placing of concrete under water becomes very difficult to unreinforced construction. Today I am going to discuss tremie method that is mostly adopted for concreting under water such as cofferdams, caissons, and such other dewatering method. Tremie method is one of the most common methods that is used for concreting under water.

The pipe should be long enough that it reaches to the bed of water keeping its one end above the water level. The tremie is then fitted with a hopper at the upper end for pouring concrete inside the pipe. The lower end of the tremie pipe must be closed with a check valve before inserting it into the water. After that, freshly mixed concrete is poured with the help of hopper. When the concrete is poured, it displaces the air and water present in the pipe and finally reaches to the bed.

During the time of concreting the tremie is continuously lifted keeping the lower end of the tube in the concrete that is already poured. To reduce the extra loss of cement under water, rich concrete mix should be always used. Thus concrete laid underwater should never be compacted or consolidated. Previous post. Next post. Register Now. Remember Me. Lost Password Lost your password? Register Now Lorem ipsum dolor sit amet, consectetur adipiscing elit. Create an account. Contact Home. Underwater Concreting By Tremie Method.

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A tremie is a watertight pipe, usually of about mm inside diameter to mm , [1] with a conical hopper at its upper end above the water level. It may have a loose plug or a valve at the bottom end. A tremie is used to pour concrete underwater in a way that avoids washout of cement from the mix due to turbulent water contact with the concrete while it is flowing. This produces a more reliable strength of the product. Common applications include the following. The tremie is often supported by a working platform above the water level.

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