Life Cycle Assessment (LCA) of 3D Concrete Printing and Casting Processes for Cementitious Materials Incorporating Ground Waste Tire Rubber

Ordinary concrete is an indispensable construction material of modern society which used for everything from mundane road pavements to building structures. However, it often non-load-bearing applications (for instance, insulating lightweight units) where mechanical strength not a priority. This leads avoidable depletion natural aggregates could instead be replaced by alternative waste materials capable conferring the desired performance while ensuring “green” route their disposal. Furthermore, automation production processes via 3D printing can further assist in achievement more advanced and sustainable scenario sector. In this work, environmental analyses were conducted on 3D-printable cementitious mix engineered with ground tire rubber aggregates. The research proposed comparative study between rubberized mixes obtained traditional mold-casting methods achieve comprehensive analysis terms design manufacturing process. To evaluate (global warming potential cumulative energy demand) investigated samples, Life Cycle Assessment models built using SimaPro software Ecoinvent database. Empathetic Added Sustainability Index, includes strength, durability, thermo-acoustic insulation, indicators, was defined quantify overall samples relation engineering properties eco-footprint.