Durability of Rubberized Mortar and Concrete

This study aims at determining the durability of mortar and concrete, including aggregate of discarded car tires under environmental conditions. These conditions are freeze-thaw, seawater, and high temperature. Concrete specimens produced with a cement dosage of 300, a 0.5 water-cement ratio, and 0, 10, 20, and 30% rubber aggregate in volume, where the grain size is 1–4mm instead of fine aggregate, and portland compose cement (CEM II/B 32.5) are used for freeze-thaw. The effect of seawater on specimens produced with 10, 20, 30, and 40% rubber aggregate in volume instead of sand was investigated. For specimens produced with 10, 20, and 30% rubber aggregate in volume, the effect of high temperature was investigated. During this research physical, mechanical, and durability experiments were performed on mortar and concrete specimens. As a result it was determined that in the regions where the environmental conditions are not harsh, use of concrete produced with 10% rubber aggregate is appropriate as it is economical and an effective way of recycling the discarded tires.