Effect of mechanical activation on compressive strength of activated phosphorous slag

The compressive strength development of activated phosphorous slag cement (APHSC) with varying Blaine fineness has been investigated within the scope of this study. Blaine fineness of activated phosphorous slag has been increased to 3030, 3510, 4000, and 4500 cm2/g from its original 1100 cm2/g value by a laboratory ball mill. For this purpose, mortar specimens were prepared and cured in lime-saturated water until testing time. an‎d then 7-, 14-, 28-, and 90-day compressive strengths were measured. Test result show that increasing Blaine fineness significantly improves the compressive strength of APHSC.