Hydration of alinite cement produced from soda waste sludge

Date

2018-03-10

Author

Ucal, Gultekin Ozan
Mahyar, Mandi
Tokyay, Mustafa

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

227
views

0
downloads

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.

Subject Keywords

Alinite cement, Soda waste sludge, Low-energy cement, Hydration

URI

https://hdl.handle.net/11511/29914

Journal

CONSTRUCTION AND BUILDING MATERIALS

DOI

https://doi.org/10.1016/j.conbuildmat.2017.12.196

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Low-energy alinite cement from soda sludge waste 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...
Hydration and properties of limestone incorporated cementitious systems Erdoğdu, Korhan; Tokyay, Mustafa; Department of Civil Engineering (2002) 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...
Compressive strength development of calcium aluminate cement-GGBFS blends Kirca, Onder; Yaman, İsmail Özgür; Tokyay, Mustafa (2013-01-01) The compressive strength development of calcium aluminate cement (CAC) and ground granulated blast furnace slag (GGBFS) blends that were subjected to different curing regimes are investigated. The blends had GGBFS/CAC ratios between 0% and 80%, by mass. Mortar specimens, prepared with a water:binder:sand ratio of 1:2:6, were subjected to seven different curing regimes and the compressive strengths were monitored up to 210 days. In order to understand the effect of temperature on compressive strength develop...
Corrosion Behavior and Cathodic Protection Modeling of a Selected Steel Component in Seawater Aksu, Rauf; Erdoğan, Metehan; Meço, Halim; Karakaya, İshak (null; 2016-11-01) Corrosion is a material deterioration process due to chemical interactions with surrounding environment. Metallic components of amphibious vehicles are exposed to aggressive species such as chlorine in marine environment. These components must be coated or well protected to inhibit corrosion. Peeling and cracked paint on the surfaces of the vehicle hulls may result in undesired chemical interactions on damaged areas. Cathodic protection application with sacrificial anodes is an effective solution to corrosi...
Ground granulated blast furnace slag, fly ash and zeolite as cement replacement materials Keskin, Serhat; Yaman, İsmail Özgür (2009-01-01) Cement incontrovertibly, is the major and the most widely used binder in the structural concrete. However, the production of cement requires high energy and concedes great amounts of contaminants. From both economical and environmental point of view incorporation of wastes or by-products from various industries in the production of cementitious materials, is an increasing trend in concrete technology. This article investigates the use of ground granulated blast furnace slag, obtained by grinding the by-prod...

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.