Abstract
The purpose of this study is to produce recycled concrete from the most common environmental pollutants, which are plastic waste and recycle concrete. Where plastic bottles were cut and used as fibers to reinforce concrete besides using the recycle concrete as an aggregate. also, it can be used in improving the various properties of concrete in terms of improving compressive strength, bending, thermal insulation, etc., because it is considered one of the most influencing disadvantages of concrete. Five mixes of concrete free of fine aggregate were poured with various volumetric proportions (0.6, 0.8, 1.0, 1.2 and 1.4) % of plastic fibers were added to them. The natural aggregate was completely replaced by a carefully graded product according to the specifications of crushed concrete residue. A comparative mix of recycled fiber-free concrete was poured. The results showed that with an increase in the fiber content, the thermal conductivity of the concrete samples decreases, the compressive and bending resistance increases at the age of (28) days, as well as, the density of concrete decreased. Besides, the results showed a slight improvement in the resistance to the impact of the slabs at the age of (90) days.
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