Refractory concretes based on aluminous cements are used with great success in areas where high temperatures are required. The mineralogical composition of the high alumina cement is the main factor which gives the physical and mechanical properties at high temperatures of refractory monolithic materials.
It is therefore desirable to use high alumina cements based on mineralogical compounds with high refractoriness, because in the end those beneficial properties can be found in the final product - refractory concrete.
The aim of this paper is to design, realize and characterize different compositions of high alumina cements based on mineralogical compounds with the highest refractory from the CaO-Al2O3 binary system (i.e. CA, CA2, and CA6), and to find ways of hydraulic activation of calcium hexa aluminate, also.
 Angelescu, N., Ionita C. - Calcium hexa aluminate as possible mineralogical compound in alumina cements. Metallurgy and New Materials Researches, Februaries 2011, vol. 19, Special BRAMAT No, p. 11-13.
 Teoreanu, I., Ciocea, N. - Lianţi, mase şi betoane refractare. Ed. Tehnica, Bucharest, 1977.
 Munteanu, M., Ionescu, A., Ropota,,I., Munteanu,,O. - Hydration of calcium aluminates in the presence of yeelenite, Calcium Aluminate Cements. Proceeding of the Centenary Conference, Breperss, 2008, p. 429-434.
 Ionita C. - Sisteme liante complexe folosite la obţinerea betoanelor de înaltă performanţă în contextul utilizării cimentului cu compuşi mineralogici înalt refractari. Doctorate Thesis, Valahia University Targoviste, 2013.
 Hewlett, P. - Lea’s Chemistry of Cement and Concrete, 4th edition. Publisher: Elsevier Science & Technology Books, 2002, p 1057.
Ionita, C., Angelescu, N., Muntean, M. - The influence of mineralogical composition of high alumina cement on its physical - mechanical properties. Proceedings of the Centenary Conference, Avignon, France, 19 May - 21 May 2014. HIS BRE Press, 2014.
Ionita C., Angelescu, N., Amziane, S. - Characterization of super aluminous cements using thermogavimetry analysis and X-ray diffraction. Metalugia International vol 17 (2012), no. 6, pp. 174-177.
 Das, S. K., Daspoddar, P.K. - Dehydration kinetics of hydrated calcium dialuminate. Thermochimica Acta no 293, Elsevier Scientific Publishing Company, pp 125-128, 1997.
 Taylor, H. F. W. - Cement chemistry, 2nd edition. Publisher: Thomas Telford Publishing, 1997.
 Ionita, C., Angelescu, N. Abdelgader, H. S., Bratu, V., Stanciu, D., Ion, I. - The influence of hydration on the mechanical strength of the high aluminous cement. Proceedings of The International Conference on Advances in Cement and Concrete in Africa, ACCTA 2013, Johannesburg, South Africa, 2013, pp. 961 - 968.
. Kumar, S., Bandopadhyay, A., Alex, T.C., Kumar, R. - Influence of mechanical activation on the synthesis and hydraulic activity of calcium dialuminate. Ceramics International, no 32, pp. 555-560, 2006.