COMPOSITION COMPRISING CALCIUM-MAGNESIUM COMPOUND(S) AS COMPACT COMPOUNDS

A composition comprising at least one calcium-magnesium compound fitting the formula aCaC03.bMgC03.xCaO.yMgO.zCa(OH)2.tMg(OH)2 .ul, wherein I represents impurities a, b, z, t and u each being mass fractions ? 0 and s 50%, x and y each being mass fractions ? 0 and s 100%, with x + y ? 50% by weight, based on the total weight of said at least one calcium-magnesium compound, which is in the form of particles, said composition having an calcium and magnesium accrued content in the form of oxides, greater than or equal to 20% by weight and being in the form of compacts, each compact being formed with said compacted and shaped particles of calcium-magnesium compounds, said compacts having a Shatter Test Index of less than 10% allowing very good resistance to falling and good resistance to ageing, manufacturing method and use thereof. The most suitable figure is Fig. 1.