concrete aggregate


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aggregate

1. An inert granular material such as natural sand, manufactured sand, gravel, crushed gravel, crushed stone, vermiculite, perlite, and air-cooled blast-furnace slag, which when bound together into a conglomerate mass by a matrix forms concrete or mortar.
2. An inert granular material that may be added to gypsum plaster.
References in periodicals archive ?
Therefore, the heating treatment and the removal of attached mortar of recycled concrete aggregate caused a decrease in mechanical properties in the case of low water/binder ratio but caused an increase in mechanical properties in the case of high water/binder ratio.
Of that amount, 100 percent was diverted from landfills by crushing the returned concrete and reusing that as crushed concrete aggregate in concrete furnished for the project."
This paper has presented some of the experimental results obtained from the influence of recycled concrete aggregate (RCA) on the performance of stone mastic asphalt (SMA) and hot mix asphalt (HMA) and the following conclusions are obtained.
Staton took more than 7,200 tons of concrete aggregate materials from the California Avenue and Green Springs Drive bridges.
Tegguer, "Improvement of recycled concrete aggregate properties by polymer treatments," International Journal of Sustainable Built Environment, vol.
Taylor, "Performance of concrete made with commercially produced coarse recycled concrete aggregate," Cement and Concrete Research, vol.
Recycling concrete pavement prevents the recycled concrete aggregate (RCA) from going into landfills, for example, and, if the recycled material is used locally, can lead to decreased energy consumption and other costs associated with hauling and producing aggregate.
ConExpo attendees also had the opportunity to hear Charles Luedders of the Federal Highway Administration provide a summary of a five-state study the agency conducted on advanced uses of recycled concrete aggregate (RCA).
The purpose of this review was to capture the most advanced uses of recycled concrete aggregate (RCA) for transportation uses in the United States and transfer it to all state transportation agencies (STAs) in the country.
Using Lithium to Mitigate ASR in RCA Concrete: This research is an extension of work completed earlier during RMRC Project 1: "Mitigating Alkali Silicate Reaction in Recycled Concrete." A tremendous quantity of infrastructure Portland Cement Concrete (PCC) is nearing the end of its useful life in the United States, and much of this concrete has the potential to be used as recycled concrete aggregate (RCA).