COMPARING THE EFFECT OF USING THE COPPER BLAST FURNACE SLAG AND TAFTAN POZZOLAN ON CONCRETE PROPERTIES TO THE AGE OF 6 MONTHS

Today large number of researches are carried out on concrete properties due to its wide use as an important construction material. Most part of concrete is cement whose cost decrease leads to producing of economical concrete. Using the industrial sweepings such as copper blast furnace slag which have pozzolan properties can make the cement economical. By using these materials, not only will the production costs of cement be reduced but also saving costs of sweepings will be eliminated and natural environment will be protected. In this research, the copper blast furnace slag milled to mesh325 and in this mesh the maximum diameter of grains is 45 micron. 455 cubic specimens with a size of 15×15×15 and cylindrical specimens with a size of 30×15 have been made. Compressive and tensile experiments were carried out and the results showed the positive effect of Taftan pozzolan and copper slag on concrete properties.

Keywords:

copper blast furnace slag , pozzolan , compressive and tensile strength , concrete