[section]engel, "Properties of concretes produced with waste concrete aggregate
," Cement and Concrete Research, vol.
 FHWA, Summary of California recycled concrete aggregate
Azarhoosh, "The effect of recycled concrete aggregate
and steel slag on the dynamic properties of asphalt mixtures," Construction and Building Materials, vol.
Extensive research has been conducted, but many are related to the recycling use of waste concrete aggregates
Similarly, commercial construction debris used to create recycled concrete aggregate
as an aggregate base for highway and building construction must be cleaned of unwanted material, such as bricks, wood, steel, ceramics and glass.
The study's conclusion hails Texas as "a leader in the use of RCA as an aggregate in concrete pavement" and says the state provides "an illustration of how recycled concrete aggregate
can be reused as an aggregate in a quality concrete pavement surface."
* Maintaining grade on highways: The process of reusing the existing pavement as a base material or concrete aggregate
allows the owner agency to redesign the new pavement structure at the existing grade.
Replacement of recycled concrete aggregate
(RCA) for natural coarse aggregate by up to 45 percent by volume had no significant effects on any of the concrete properties studied, indicating high-quality RCA can be used as a replacement for a portion of the coarse natural aggregates in new portland cement concrete pavements.
Guptail says vibratory screens and star screens are also used in sizing concrete aggregate
. But Jable warns, "The thing to be cautious of with things like vibratory and finger screens is jamming.
This work investigates petrography, geochemistry and mechanical properties of the Eocene limestone of the Shekhan Formation for its suitability as a concrete aggregate
. The limestone is yellowish-grey in colour, medium-thin bedded with interbedded shale partings, compact and fossiliferous at its type locality.