Effects on Mechanical Properties of Recycled PET in Cement-Based Composites

Table 3

Components of concrete with recycled PET.

PET (vol %)	PET (g)	Portland cement (g)	Silica sand (g)	Gravel (g)	Water (g)	Total volume∗ (cm^3)
1.0	3.26	420	914.7	1152	413	1338.9
2.5	8.17	420	909.8	1152	413	1339.9
5.0	16.33	420	901.6	1152	413	1342.8

∗Total volume was calculated considering specific gravity (g/cm³) of each material, as follows: PET (1.45), cement (3.15), silica sand (2.55), gravel (2.67), and water (1.00).