Hydration of alinite cement produced from soda waste sludge

Ucal, Gultekin Ozan
Mahyar, Mandi
Tokyay, Mustafa
Alinite cement is an alternative inorganic, low-energy binding material. This experimental study investigated hydration characteristics of alinite cement which was produced by using soda waste sludge as a raw material. Paste microstructures were studied by X-ray powder diffraction and scanning electron microscopy. Heat of hydration and compressive strength values were also determined. Formation of C-S-H gel and calcium chloroaluminate hydrates which resemble Friedel's salt was observed. Induction period of alinite cement was around 15-20 min and unlike Portland cement, hydration did not practically stop during this period. Up to 12% gypsum addition to alinite cement resulted in increased compressive strength.


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Uçal, Gultekin O.; Mahyar, Mahdi; Tokyay, Mustafa; Yaman, İsmail Özgür (2017-01-01)
Alinite cement which was developed in 1970s is an alternative inorganic, low-energy binding material in which chlorine containing wastes can be utilized. Although potentially a suitable candidate, there is little research on utilization of soda sludge waste in cementitious systems. In this experimental study, synthesis and optimization of the properties of alinite cement by using soda sludge waste as a raw material was carried out by investigating optimum calcination temperature and calcination duration, ch...
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As limestone is a new widely used mineral addition in cement, understanding the effects of this material on cement properties and hydration in a detailed manner is of substantial importance for efficient and proper usage. Consequently, the current study is designed. In the experiemental study, three different limestones were used. The aim of using different limestones is to reach broad generalisations by crosschecking the results and compare the effects of limestones with different structures. These limesto...
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Citation Formats
G. O. Ucal, M. Mahyar, and M. Tokyay, “Hydration of alinite cement produced from soda waste sludge,” CONSTRUCTION AND BUILDING MATERIALS, pp. 178–184, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/29914.