Perlite and Rice Husk Ash Re-Use As Fine Aggregates in Lightweight Aggregate Structural Concrete—Durability Assessment

In this paper, perlite mining and rice production by-products, namely run-of-mine husk ash, are used as fine aggregates in combination with pumice calcareous to produce lightweight concrete. Their use is evaluated mainly terms of the durability concrete, by comparing four optimized concrete mixtures similar density strength a reference one normal weight. The sorptivity due capillary sorption, open porosity, chloride migration, penetration resistance, freeze thaw response were studied evaluate According experimental results, examined developed an adequate order be classified into classes greater than LC25/28 and, therefore, structural applications. was also sufficient, especially far chlorides’ resistance concerned, which found up 39% lower compared mixture. porosity LWC increased porous nature aggregates, susceptible cycles. Exceptionally, comprising exhibited standard promising tolerance freezing thawing. Thus, sustainable recommendation for use, promoting wider exploitation natural acceptable compromise on durability.