Cement calcium aluminate has long workability and promotes hardening has a temperature elevation, and associated use

A calcium aluminate cement comprising a calcium aluminate with a first crystallized mineralogical phase CA2 calcium bialuminate comprising a calcium oxide CaO for two aluminum oxide Al2O3 and / or a second crystallized mineralogical phase dicalcium silicate alumina C2AS comprising two CaO calcium oxides for Al2O3 aluminum oxide and silicon dioxide SiO 2 According to the invention, the mass fraction of all of said first and second mineralogical phases in said calcium aluminate is greater or equal to 80%.