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in the keywords:  ductile iron pipe, blast furnace cement, Portland cement, centrifugal lining, energy dispersive spectroscopy
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A study of the composition of cement mortar lining in water and sewage pipelines

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Wassilkowska A., Kuc K., Zielina M.
Czasopismo Techniczne
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PL
Cementation of iron water and sewage pipes is a standard procedure that is used to ensure internal protection against corrosion. In order to reduce leaching of chemical elements from coating to water, the neutral impact of cement coating on the water is of major importance. In the present study, the elemental composition of the cement mortar lining, taken from the new cast iron pipes with a diameter of 100 and 150 mm, has been investigated. A reference sample was made from Portland cement. Studies using scanning electron microscopy revealed an increased contents of titanium in the sewage pipes coating and also aluminum and alkali in water pipe coatings.
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