Owing to the significant increase in the global production of plastics during the past five decades, the generation of plastic-related waste has become an urgent environmental issue. Recycling plastics is an eco-friendly alternative to the disposal of a large volume of waste plastic in landfill. Recently, the use of recycled plastic materials in the development of new eco-friendly concretes has received significant attention. This technology has the potential of reducing both the environmental pollution associated with disposal of waste plastic in landfill and consumption of non-renewable natural resources used by the concrete industry. However, the production of recycled plastic concrete with suitable properties remains a major challenge for researchers. This chapter presents the current state of research on the properties of concrete containing recycled plastics, discussing their physical, mechanical, durability-related and time-dependent properties, as well as their fire resistance and thermal conductivity based on the results of studies reported in the literature.