Revealing some mechanical and physical properties of rubcrete as a sustainable construction material

One of the causes of pollution is the inability of waste to decompose easily, and non-degradable waste is no exception. The issue with non-degradable waste is its difficult and costly decomposition process. Tire waste is non-degradable and can cause air pollution when burned after being discarded. Squandering material with good mechanical and physical properties, low cost, and many other benefits is a waste. This work aimed to utilize three types of tires as an alternative to coarse aggregates in the production of sustainable building materials. Tires were used in inner, outer, and textile tires in 10, 15, and 20%. Three sets of each percentage were accomplished to immerse in water for 7, 14, and 28 days. Density, water absorption, hardness, and compressive strength have been measured for each specimen. The results reveal that the lowest density is for the 20% textile tire after 28 days, and the lowest water absorption is for the 15% textile tire after 28 days. In contrast, the highest hardness was for 15% of the inner tire after 28 days. The highest compressive strength was for the 10% inner type after 28 days. It was concluded that the kind of tire and percentage should be selected carefully according to the application’s demands. Due to the monumental importance of reducing waste materials, four correlations for the best performance of crumb tire waste (CTW) types for each studied property, in relation to the percentage of CTW addition, have been derived. These mathematical relations hint at every proportion without resorting to the trial-and-error method.