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Received: 10 February 2019 Accepted: 26 April 2019 The diffusion of plastic materials had and still has a significant impact on the environment. Among these, PVC (polyvinylchloride) is certainly able to guarantee the best cost/performance ratio, high sustainability and absolute recyclability. In particular, this work refers to cement-based mortars with PVC compound used for electric cables sheathing. The aim was to verify the potential of a “new” mix-design in terms of energy efficiency and mechanical resistance of the finished products. Some mortar specimens were prepared using as basic components cement, water, sand and PVC as powder and granules. The plastic aggregate, in volumetric substitution of the sand, has been varied in proportions varying up to 50 % of the dry component. Different mixtures were prepared, all referred to a base one without PVC, to evaluate its influence on workability, thermal conductivity, compressive and flexural strength, capillary water absorption. Experimental results have shown that increasing the amount of PVC reduces density as well as compressive and flexural strength. However, PVC mortars show a greater resistance to capillary water absorption compared to the reference one, while the thermal conductivity values slightly decrease. This study is the basis for subsequent research based on further combinations of aggregates.

Energy and Mechanical Characterization of Composite Materials for Building with Recycled PVC