Analysis of the physical-mechanical concrete properties when concrete waste additives are used in the mixtures

Abstract

Most often construction waste in Lithuania is used for road construction. 78 % of construction waste consists of concrete waste, bricks and tiles. Concrete waste can be used for the production of higher quality products, and this waste can be returned to the production technological cycle. In the research the variation of the properties of concrete samples is analysed when concrete waste aggregates are used. Concrete waste with various fractions was used as coarse aggregate in the research, as well as filler aggregates from the crushed concrete waste were used. Physical-mechanical properties of the samples were analysed by comparing with reference samples where typical aggregates were used. Sectional analysis of the samples, produced by using coarse aggregates from concrete waste, is carried out during the research and covering areas of every integrated phase are calculated.