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Design and Application of the Precast
Name: Design and Application of the Precast
File: saglik 05-16-16.pdf
Size(MB): 4.88MB
Extension: PDF
Speaker Name: Saglik, A.
Managed by: sdickens
Date Uploaded: June 21, 2016; 9:16 am
Download Count: 571
Downloads This Month: 571

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"This paper describes the challeges of a water supply project of Turkish Republic of Northern Cyprus (TRNC) from Turkey, in which high-density polyethylene (HDPE) pipes of total 80 km in length are to be used. These pipes are suspended 250 meters below the sea level by means of precast concrete anchor blocks that are positioned on the seabed at different depths, at a maximum depth of 1431 m. According to the specifications of the pre-cast concrete anchor blocks, the concrete should have a maximum w/c ratio of 0.35 and a minimum strength class of C40/50. Moreover, as this strength class of concrete has a high cement dosage and the smallest dimension of the anchor block is more than 1.0 m, the concrete should be treated as mass concrete. During the development of concrete mixture design, limestone aggregates with a maximum grain size of 19.1 mm were obtained from a local ready-mix concrete plant that has a production control certificate conforming to TS EN 206 standard. Moreover, from a cement factory nearby slag cement that conforms to EN 197-1 with a ground granulated blast furnace slag (ggbfs) content of at least 60% is obtained. Finally, a new generation of chemical admixture is utilized to produce self-compacting concrete. After developing the self-compacting concrete in the laboratory, anchor blocks were successfully produced."

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