Application of TiO2 additive to concrete for pyrene degradation. Compressive strength of photocatalytic concrete

Abstract In this work, samples of fine-grained concrete were made with the addition TiO 2 powder in a range 1-3 wt% relative to cement. The photocatalytic properties for degradation pyrene solutions sodium dioctyl sulfosuccinate under UV irradiation investigated. To evaluate efficiency photodegradation, method luminescence analysis was used. It found that degree using reaches 25% after 120 minutes irradiation. compressive strength manufactured also studied. A decrease no more than 24% registered. prevent negative effect additive, plasticizer case, increased from 19 31% without plasticizer.