Experimental Study on the Physical and Mechanical Characteristics of Roller Compacted Concrete Made with Recycled Aggregates

A huge volume of waste is generated by natural and human-made disasters rapid urbanization that leads to the demolition structures reaching end their service life. Using recycled aggregates in concrete producing reduces environmental pollution decreasing disposal this material landfills preserving unreasonable exploitation resources. This manuscript presents results an experimental program aiming study effect on physical mechanical properties roller compacted (RCC). Dreux–Gorisse mix design method together with modified proctor test were adopted prepare a reference mixture three derived mixtures where coarse replaced 50%, 70%, 100% aggregates. The RCC evaluated means water absorption gas permeability tests while using compressive, tensile splitting 3-point flexural tests. showed both ability increase proportionally replacement ratios. compressive strength class was approximately constant for all developed at age 28 days. For substitution ratio 100%, drop only 6% recorded. reduction more pronounced than about 10% It found increases time, it can be estimated any analytical models conventional hydraulic concretes. Based obtained results, concluded up 50% don’t negatively affect RCC.