%0 Journal Article %T VERIFICATION OF THE BASIC PROPERTIES OF RECYCLED AND NATURAL AGGREGATES %A Iveta H¨˘jkov¨˘ %A Karel Mikulica %J - %D 2019 %X In the future, it is planned to use up to 50% of construction and demolition waste (C&DW) for the production of new building structures. This leads us to think about how we can use recycled concrete aggregate (RCA) as a substitute for natural aggregate (NA) in concrete mixtures. This is why we compare the two typical representatives of recycled aggregates with a representative of natural aggregates. As a representative of recycled aggregates, we chose pure concrete recycled from the cutting of concrete and mixed recyclate from the demolition of the apartment building. As a representative of natural stone, we chose the extracted aggregate %K construction and demolition waste (C&DW) %K recycled concrete aggregate (RCA) %K natural aggregate (NA) %K stone testing %U https://ojs.cvut.cz/ojs/index.php/APP/article/view/5656