Use of cement dust in the manufacture of vitrified sewer pipes

• Published in: Waste management (Elmsford) Vol. 24; no. 6; pp. 597 - 602
• Main Authors: El Sherbiny, S.A, Youssef, N.F, Ibrahim, O.A, Abadir, M.F
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 2004; New York, NY Elsevier Science
• Subjects: Applied sciences; Conservation of Natural Resources; Construction Materials; Dust; Exact sciences and technology; Glass; Materials Testing; Pollution; Sanitation - instrumentation; Sewage; Temperature; Waste Management; Dust; Sewer network; Sewer; Cement
• ISSN: 0956-053X; 1879-2456
• DOI: 10.1016/j.wasman.2004.01.007

Waste by-pass cement dust was added in different percentages ranging from 2% to 10% to a standard mix for sewer pipes manufacture, as a substitute for expensive feldspar. It was found that a mix consisting of 45% kaolin, 36% ball clay, 9% grog and 10% by-pass dust and fired at a temperature of 1300 °C for 4 h yielded samples that meet the standards. It was possible to reach a water absorption of 4%, a modulus of rupture of 7.8 MPa and a resistance to acids and alkalis conforming with standard values. A test pipe was fabricated by vacuum extrusion using the suggested composition and was found to withstand a hydraulic pressure of 14 MPa for one minute without the appearance of any cracks.