Since concrete is the most commonly used artificial material in the world, its production requires a large amount of ingredients. It is for this reason that concrete production greatly affects the environment. In order to satisfy the production of concrete aggregates, it is necessary to significantly encroach on nature, which disturbs the aesthetics, destroys the natural habitats of plants and animals, and creates a large amount of noise and dust. In addition to the production of aggregates, a major environmental problem is the production of cement, a material that serves as a binder in concrete. During cement production, large amounts of CO2 are released into the atmosphere. The aim of this paper is to find possible replacements for the basic components of concrete from materials that have already been produced and are no longer used. In addition to reducing the production of concrete components, it would also reduce the amount of waste material that is otherwise disposed of in nature. In the experimental part of the work, tests were performed on samples of cement mortar and concrete in which the natural aggregate was replaced in a certain percentage by sawdust made of PVC, which is formed during the production of carpentry. The tests performed on the cement mortar samples are the consistency test and the tensile and compressive strength test, and on the concrete samples the wear resistance, water permeability and tensile strength tests.