Experimental study on epoxy polystyrene as a partial substitution of fine aggregate of concrete mixture

This study has an objective partial substitution of sand in concrete materials. On the use of 5% EPS concrete compressive strength characteristics obtained amounted to 18.69 MPa (down approximately 20.9% of the normal mixture). While the use of 10% EPS, decrease concrete compressive strength of 21.67% ie 18.51 MPa. Modulus of elasticity of concrete decrease with the addition of the percentage of EPS, the use of EPS up to 40% decrease modulus of elasticity to be 16.219 MPa (down around 21%). The relationship between the modulus of elasticity (E), Specific Gravity (wc), compressive strength (f/ c) and the percentage of EPS (p) can be expressed in an empirical equation as follows: E = (wc)1,5·0,05·exp(-0,23·p)·√f/ c..