Engineering Characteristics of Recycled Concrete
Here is test data from an interstate highway project. Keep in mind every project/product will be different and you will need to address your specific situation accordingly.
| Design: |
C/A Ratio: |
7 Day |
14 Day |
28 Day |
| Flexual Comp |
25% RCY
75% QRY |
710 PSI
4600 PSI |
760 PSI
NO DATA |
760 PSI
5730 PSI |
| Flexual Comp |
50% RCY
50% QRY |
640 PSI
4560 PSI |
690 PSI
NO DATA |
700 PSI
5530 PSI |
| Flexual Comp |
75% RCY
25% QRY |
665 PSI
4700 PSI |
690 PSI
NO DATA |
800** PSI
6230 PSI |
| Flexual Target 650 PSI* Final Design 75% RCY AGG |
* DOT’s design specification
** In this scenario the greatest success was achieved with 75% recycled & 25% virgin coarse aggregate.
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