Aside from simply finding a new use for discarded goods, we’ve seen how adding recycled rubber tires to concrete can make the material stronger and more heat resistant. New research has continued to expand the possibilities in this area, with scientists coming up with a new manufacturing method for a recycled concrete aggregate that produces a version 35 percent stronger than traditional concrete.
Made from a blend of cement, water, crushed rocks, sand and other ingredients, scientists are constantly experimenting with the makeup of these various components in pursuit of better construction materials. Last year, we looked at research from Australia’s RMIT University, where scientists used discarded tires and building rubble to form a new recycled concrete aggregate that appears highly suitable for use on roads.
This latest breakthrough also comes from engineers at RMIT University, and also makes use of rubber tires and building rubble reduced to course and fine aggregates. Key to the breakthrough was a customized mold, which was used to compress these ingredients, along with cement and water, down to their minimum volume, resulting in a prefab concrete material with up to 35 percent greater strength.