Properties of blended cements with thermally activated kaolin

Date

2009-01-01

Author

Arikan, Metin
Sobolev, Konstantin
Ertuen, Tomris
Yeginobali, Asim
Turker, Pelin

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Kaolin, one of the materials of major importance for the ceramic and paper industry, is also used in the construction industry as a raw material for the production of white cement clinker and, in the form of metakaolin, as an artificial pozzolanic additive for concrete. Metakaolin is a vital component of high-performance and architectural concrete; however, its application in regular concrete is very limited due to relatively high production costs. This report evaluates the performance of a low-cost metakaolin-based additive called thermally activated kaolin (TAK), in cement. Due to its pozzolanic properties and the densification of cement matrix, the application of TAK provides a 15% improvement of the compressive strength. It was shown that TAK of optimal quality can be manufactured by the thermal treatment of raw kaolin with 74% of kaolinite at 750 degrees C without the intermediate beneficiation stage. The application of a developed approach can significantly reduce production expenditures and make the application of such an additive feasible even in regular-grade cement and concrete.

Subject Keywords

General Materials Science, Civil and Structural Engineering, Building and Construction

URI

https://hdl.handle.net/11511/68101

Journal

CONSTRUCTION AND BUILDING MATERIALS

DOI

https://doi.org/10.1016/j.conbuildmat.2008.02.008

Collections

Department of Civil Engineering, Article

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Citation Formats

M. Arikan, K. Sobolev, T. Ertuen, A. Yeginobali, and P. Turker, “Properties of blended cements with thermally activated kaolin,” CONSTRUCTION AND BUILDING MATERIALS, pp. 62–70, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/68101.