Abstract

Humanity, from prehistoric times, influences the environment in which it lives. Often these are unfortunate negative influences. One of such negative effects is the accumulation of waste. We are an animal species that has always left a lot of waste, food remnants, various tools, remnants of producing these tools, and much more. First, the mankind used resources from which the waste was minimal and which was moreover degradable. As a result of the development of the company, the need for better, more perfect products developed and hand in hand is associated with more waste and non-decomposable or non-decomposable waste. The more humanity is at the higher level of development, the more waste it produces. However, this behavior conflicts with the sustainability of the environment. Fortunately, they are making bigger efforts to recycle the waste, ie re-use of waste materials. Construction is not behind this, and many efforts are being made to use the waste materials in building structures. The best known is the recycling of glass for the production of window glass, for example, but there are many examples. Glass has exceptional properties in this respect because it can be recycled to the infinity. For many substances, it is not possible to find a use other than their primary use. In this article, we are focusing on the re-use of various waste materials as admixtures in concrete. The use of waste materials in concrete is directly available, not only because of the number of concrete structures, but also because of the closure of waste materials in its structure. Some waste materials can be used as fillers, that is to say, substitute aggregates, but they are substances which can also be used as a replacement for a part of a binder, in this case, of cement. The article summarizes the existing use of waste materials in concrete and provides a space for possible detailed research on this concrete.

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