This research involves the production and study of the properties of a light weight ecological concrete, in which different ratios of the raw materials has been used in production. The research aims to study the effect of adding waste of PVC and waste sawdust, as well as remnants of both together and percentages by weight (0.5%, 1%, 2.5%) as partial replacement of small aggregates (sand) to get lightweight concrete with the lowest possible cost. We prepared standard cubic samples with dimensions (15 × 15 × 15) cm and standard cylindrical samples with dimensions (diameter 7.5 cm and height 15 cm) in order to conduct mechanical tests on concrete such as resistance to compression, tensile strength (Brazilian test), ultrasonic measurement, and density. The results obtained from this study showed that the use of mulch of (PVC) gives the highest values of resistance to compression and that was (84.5, 77.15, 75.15) MPa when the three ratios, respectively, at 28 days compared to the reference sample that was 59 MPa, as well as the results showed a decrease in tensile strength of (PVC) concrete, which was (3.72, 3.42, 3.1) MPa when the three ratios, respectively, compared to the reference sample, which was (4.2) MPa at the age of 28 days, but the concrete of the (PVC) is the best in tensile strength compared to sawdust concrete and both together. Ultrasonic measurements gave a decreased velocity for each cubes in the nine samples (non-reference), which range between (3.4 - 4.53) km/s and show they are of good quality compared to the standard sample, which velocity was (4.67) km/sec, which is located within the excellent boundaries at the age of 14 and 28 days. Research has shown the possibility of using these residues for the production of light-weight concrete because of its lower density compared to standard reference sample and the possibility of using this type of concrete building blocks in the manufacture of the non loaded cutters as well as concern for the preservation of environmental causes and reduces environmental pollution.