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Comparison Study between the Use of Plastic and Concrete Pipes for Redesign and Reconstruction of Sanitary Sewer Network in Baghdad City (Hay Al Karadda –Sections 903-905) | ||
| Engineering and Technology Journal | ||
| Article 1, Volume 27, Issue 11, 2009, Pages 2292-2304 PDF (4.03 M) | ||
| DOI: 10.30684/etj.27.11.11 | ||
| Author | ||
| Shaimaa Taleb Kadhum | ||
| Abstract | ||
| Over the recent years, the emphasis on sewerage has increasingly switched from provision of new services to maintenance of existing service at acceptable levels. As a consequence the need is now to rehabilitate existing systems rather than construct new ones. The common methods of rehabilitation consist lining of the sewer pipes and that was out of the question since it decreases the diameters of the already under size sewer lines. So that, hence, it was concluded that the best method for rehabilitating the existing system was by total replacement of the undersize sewer lines. This should be done using sewer pipes with better quality material, such as PVC, GRP or first class concrete pipes. Modern water and wastewater pipe is either organic or inorganic in composition. Today's organic pipe is made of petroleum-derived plastic, which contains preservatives, antioxidants, and stabilizers to slow down the gradual loss in strength that occurs with organic materials[1]. So that redesigned the existing sewer system in AL-Karadda district within the city of Baghdad by computer with the use of QBasic language. The design consist concrete pipes in once and plastic pipes in other to find the best. Based on the results, it was concluded that the plastic pipes needed gradient (Smin) less than concrete pipes (0.004 m/m for plastic, 0.005m/m for concrete), the max. soil cover for plastic pipes was equal to (3.59 m) while for concrete pipes it was equal to (4.25m).In addition the network redesigned on the min. commercial concrete pipe diameter equal to (200mm) while for plastic pipes equal to (250mm) and that will increasing the capacity of the network. | ||
| Keywords | ||
| Comparison; plastic pipe; concrete pipe; redesign; sanitary sewer network | ||
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