Dear Sir,We want to increase strenght of cement.Composition: cllinker 60%Lime:4%Slag:15%flyash;18%Gypsum;3%finess;3800cm2/gmresidue: less than 5% on 45 micron.strenght on 28 days normal:42.5 Mpaneed : 45-48MPA after gaids use.RGdFahim008801739198237 Show More