| 摘要 |
The invention relates to a powder comprising more than 70% of refractory particles, in weight percent relative to the weight of the powder, a particle of said powder being classed in the fraction called matrix or in the fraction called aggregate, according to whether it is smaller than, or equal to 100 μm, or larger than 100 μm, respectively, said powder comprising, in weight percent relative to the weight of the powder: between 0.1% and 18% of particles of a heat-activatable binder, called heat-activatable binder particles; and more than 40% of refractory particles, called ATZ particles, having the following chemical composition, in weight percentages on the basis of the oxides of said ATZ particles: 10%≦̸Al2O3≦̸55%; 35%≦̸TiO2≦̸80%; 1%≦̸MgO+Cr2O3≦̸10%; 8%≦̸ZrO2≦̸20%; SiO2≦̸8%. |
