Abstract
Manganese enters the clinker from alternative fuel and alternative raw materials. It is present in the iron ores utilized in the cement burning and is found in the slags employed as supplementary cement materials. The jouravskite, as a member of the ettringite family, may form in limestone cement when exposed to sulfate media. To understand its effect on the hydration process, the expansion of small cylindrical clinker pastes doped with synthesized jouravskite and ettringite in magnesium sulfate solutions was measured with a micrometer; and the compressive strength of representative cubes was monitored. The phases formed were characterized by means of X-ray diffraction, infrared spectroscopy and scanning electron microscopy. The jouravskite is found to be a strong retarder for clinker hydration probably due to its adsorption on the cement hydrates.
Subject
Mechanics of Materials,General Materials Science,Building and Construction
Reference36 articles.
1. 1. Global Waste Statistics (2022) Waste Statistics / By Cheapa Waste.
2. 2. Chaterjee, A.; Sui, T. (2019) Alternative fuels-Effects on clinker process and properties. Cem. Concr. Res. 123, 105777.
3. 3. Shimosaka, K.; Inoue, T.; Tanaka, H.; Kishimoto, Y. (2007) Influence of minor elements in clinker on the properties of cement:a new approach for application to commercial cement manufacturing. Trans. Mater. Res. Soc. Japan. 32 [3], 647-652.
4. 4. Achternbosch, M.; Bräutigam, K.R.; Hartlieb, N.; Kupsch, C.M.; Richers, U.; Stemmermann, P.; Gleis, M. (2003) Heavy metals in cement and concrete resulting from the co-incineration of wastes in cement kilns with regard to the legitimacy of waste utilisation. Karlsruhe: Forschungszentrum Karlsruhe GmbH.
5. 5. Ludwig, H.M.; Zhang, W. (2015) Research review of cement clinker chemistry. Cem. Concr. Res. 78, 24-37.