This research evaluated the use of recycled concrete as coarse combination in new concrete pavements. Recycled concrete combination (RCA) produced from demolished pavements in three geographicallydispersed areas in Washington state had been used to carry out exams on combination traits, recent concrete properties, and hardened concrete properties.

Variables included the supply of the RCA, p.c alternative of coarse pure combination with RCA (0% to 45%), and p.c alternative of portland cement with kind F fly ash (0% or 20%). RCA from all three sources met WSDOT necessities for aggregates, and all recent and hardened concrete properties met WSDOT necessities.

Alternative of RCA for pure coarse combination by as much as 45% by quantity had no vital results on any of the properties. These outcomes point out that high-quality RCA can be utilized as a alternative for a portion of the coarse pure aggregates in new portland cement concrete pavements in Washington State.

SUPPLEMENTARY NOTES:

This research was performed in cooperation with the U.S. Division of Transportation, Federal Freeway Administration, and the Pacific Northwest Transportation Consortium.

DISTRIBUTION STATEMENT:

No restrictions. This doc is on the market to the general public by means of the Nationwide Technical Info Service, Springfield, VA 22616.

KEY WORDS:

Pavements; Recycled concrete combination; RCA; Concrete, Sustainable building.

Download Evaluation of Recycled Concrete as Aggregate in New Concrete Pavements by Haifang Wen and David I. McLean simply in PDF format without cost.